Error when i try to update a member of a table

Error when i try to update a member of a table - spring-boot

this is my ProdottoController:
package it.catalogo.controller;
import java.util.Optional;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;
import it.catalogo.model.Prodotto;
import it.catalogo.repository.ProdottoRepository;
#Controller
#RequestMapping("/prodotto")
public class ProdottoController {
#Autowired
private ProdottoRepository repo;
#GetMapping("/lista")
public ModelAndView list( #RequestParam(name = "id", required = false) String idProdotto, ModelMap mm) {
if(idProdotto!=null) {
Optional<Prodotto> p = repo.findById(Integer.parseInt(idProdotto));
mm.addAttribute("prodottoDaModificare",p);
}
return new ModelAndView("prodotti", "listaProdotti", repo.findAll());
}
#PostMapping("/add")
public String add(#ModelAttribute("datiProdotto") Prodotto p) {
repo.save(p);
return "redirect:/prodotto/lista";
}
#PostMapping("/update")
public String update(#ModelAttribute("datiProdotto") Prodotto p) {
repo.save(p);
return "redirect:/prodotto/lista";
}
#GetMapping("/delete")
public String delete(#RequestParam("id") String id) {
repo.deleteById(Integer.parseInt(id));
return "redirect:/prodotto/lista";
}
}
Prodotto entity:
package it.catalogo.model;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class Prodotto {
#Id
#GeneratedValue(strategy = GenerationType.IDENTITY)
private Integer id;
#Column(name = "nome")
private String nome;
#Column(name = "descrizione")
private String descrizione;
#Column(name = "prezzo")
private Integer prezzo;
public Prodotto(String nome, String descrizione, Integer prezzo) {
super();
this.nome = nome;
this.descrizione = descrizione;
this.prezzo = prezzo;
}
public Prodotto() {
super();
}
public Integer getId() {
return id;
}
public void setId(Integer id) {
this.id = id;
}
public String getNome() {
return nome;
}
public void setNome(String nome) {
this.nome = nome;
}
public String getDescrizione() {
return descrizione;
}
public void setDescrizione(String descrizione) {
this.descrizione = descrizione;
}
public Integer getPrezzo() {
return prezzo;
}
public void setPrezzo(Integer prezzo) {
this.prezzo = prezzo;
}
}
This is the view (Freemarker):
<!DOCTYPE html>
<html>
<head>
<title>Catalogo prodotti</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/bootstrap#4.6.1/dist/css/bootstrap.min.css" integrity="sha384-zCbKRCUGaJDkqS1kPbPd7TveP5iyJE0EjAuZQTgFLD2ylzuqKfdKlfG/eSrtxUkn" crossorigin="anonymous">
<script src="https://cdn.jsdelivr.net/npm/jquery#3.5.1/dist/jquery.slim.min.js" integrity="sha384-DfXdz2htPH0lsSSs5nCTpuj/zy4C+OGpamoFVy38MVBnE+IbbVYUew+OrCXaRkfj" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#4.6.1/dist/js/bootstrap.bundle.min.js" integrity="sha384-fQybjgWLrvvRgtW6bFlB7jaZrFsaBXjsOMm/tB9LTS58ONXgqbR9W8oWht/amnpF" crossorigin="anonymous"></script>
</head>
<body>
<h1>Catalogo prodotti</h1>
<#if prodottoDaModificare?? >
<h2>Modifica del prodotto - ${prodottoDaModificare.nome}</h2>
<div style="margin: 20px">
<form method="POST" action="update" id="datiProdotto">
<input type="hidden" name="id" value="${prodottoDaModificare.id}"/>
<div>
<label for="nome">Nome</label>
<input type="text" name="nome" value="${prodottoDaModificare.nome}" id="nome">
</div>
<div>
<label for="descrizione">Descrizione</label>
<input type="text" name="descrizione" value="${prodottoDaModificare.descrizione}" id="descrizione">
</div>
<div>
<label for="prezzo">Prezzo</label>
<input type="number" name="prezzo" value="${prodottoDaModificare.prezzo}" id="prezzo">
</div>
<div>
<input type="submit" name="invia" value="Salva modifiche"/S>
</div>
</form>
</div>
<#else>
<h2>Nuovo prodotto</h2>
<div style="margin: 20px">
<form method="POST" action="add" id="datiProdotto">
<div>
<label for="nome">Nome</label>
<input type="text" name="nome" value="" id="nome">
</div>
<div>
<label for="descrizione">Descrizione</label>
<input type="text" name="descrizione" value="" id="descrizione">
</div>
<div>
<label for="prezzo">Prezzo</label>
<input type="number" name="prezzo" value="" id="prezzo">
</div>
<div>
<input type="submit" name="invia" value="Aggiungi"/>
</div>
</form>
</div>
</#if>
<hr>
<h2>Lista prodotti</h2>
<div>
<table class="table">
<thead>
<tr>
<th>Nome</th>
<th>Descrizione</th>
<th>Prezzo</th>
<th>Azioni</th>
</tr>
</thead>
<tbody>
<#list listaProdotti as prodotto>
<tr>
<td>${prodotto.nome}</td>
<td>${prodotto.descrizione}</td>
<td>${prodotto.prezzo}</td>
<td>
Elimina
Modifica
</td>
</tr>
</#list>
</tbody>
</table>
</div>
</body>
</html>
When i try to update a value into the table i've the following error:
FreeMarker template error (DEBUG mode; use RETHROW in production!): The following has evaluated to null or missing: ==> prodottoDaModificare.nome [in template "prodotti.ftl" at line 15, column 47] ---- Tip: It's the step after the last dot that caused this error, not those before it. ---- Tip: If the failing expression is known to legally refer to something that's sometimes null or missing, either specify a default value like myOptionalVar!myDefault, or use <#if myOptionalVar??>when-present<#else>when-missing. (These only cover the last step of the expression; to cover the whole expression, use parenthesis: (myOptionalVar.foo)!myDefault, (myOptionalVar.foo)?? ---- ---- FTL stack trace ("~" means nesting-related): - Failed at: ${prodottoDaModificare.nome} [in template "prodotti.ftl" at line 15, column 45] ---- Java stack trace (for programmers): ---- freemarker.core.InvalidReferenceException: [... Exception message was already printed; see it above ...] at freemarker.core.InvalidReferenceException.getInstance(InvalidReferenceException.java:134) at freemarker.core.EvalUtil.coerceModelToTextualCommon(EvalUtil.java:481) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:401) at freemarker.core.EvalUtil.coerceModelToStringOrMarkup(EvalUtil.java:370) at freemarker.core.DollarVariable.calculateInterpolatedStringOrMarkup(DollarVariable.java:100) at freemarker.core.DollarVariable.accept(DollarVariable.java:63) at freemarker.core.Environment.visit(Environment.java:347) at freemarker.core.Environment.visit(Environment.java:353) at freemarker.core.Environment.visit(Environment.java:353) at freemarker.core.Environment.process(Environment.java:326) at freemarker.template.Template.process(Template.java:383) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.processTemplate(FreeMarkerView.java:391) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.doRender(FreeMarkerView.java:304) at org.springframework.web.servlet.view.freemarker.FreeMarkerView.renderMergedTemplateModel(FreeMarkerView.java:255) at org.springframework.web.servlet.view.AbstractTemplateView.renderMergedOutputModel(AbstractTemplateView.java:179) at org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:316) at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1401) at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1145) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1084) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:963) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) at javax.servlet.http.HttpServlet.service(HttpServlet.java:655) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:764) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:890) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1787) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191) at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:833)

Your problem is that when you do mm.addAttribute("prodottoDaModificare",p), p is not a Prodotto object, but an Option. And of course, Option has no nome property. Use mm.addAttribute("prodottoDaModificare",p.orElse(null)) (or if the object must be there, then orElseThrow).

Related

There is an error using Spring Boot to receive the value using 'UserInfoDto' and then store the value in 'Users'

This is view to receive the above values.
Press the Submit button at the end of the form tag to send the data.
(id, password, name, phone_number, ssn, city_name, town_name, street_name, zip_code, details)
Used : Mysql, Springboot, java, jpa, html
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title>signuppage</title>
<link rel = "stylesheet" href ="/css/sample.css">
<link href="/css/listpage_copy.css" rel="stylesheet">
<link href="/css/font.css" rel = "stylesheet">
</head>
<body>
<form class="row g-3" id = "row_g-3_cumstom" action="/signup_execute" name = "user_info" method="post">
<div class="col-md-6">
<label for="inputEmail4" class="form-label">이메일</label>
<input type="email" class="form-control" id="inputEmail4" placeholder="최대 20자리 까지 입력가능" name = "id" maxlength="40">
</div>
<div class="col-md-6">
<label for="inputPassword4" class="form-label">비밀번호</label>
<input type="password" class="form-control" id="inputPassword4" placeholder="최대 20자리 까지 입력가능" name = "password" maxlength="20">
</div>
<div class="col-md-6">
<label for="inputPassword4" class="form-label">닉네임</label>
<input type="text" class="form-control" placeholder="최대 25자리까지 입력가능" name = "name" maxlength="25">
</div>
<div class="col-md-6">
<label for="inputPassword4" class="form-label">전화번호</label>
<input type="tel" class="form-control" placeholder="ex) 01012345678" pattern="[0-9]{11}" name = "phone" maxlength="12">
</div>
<div class="col-12">
<label for="inputAddress" class="form-label">주민번호</label>
<input type="password" class="form-control" id="inputAddress" placeholder="13자리를 입려하세요." pattern="[0-9]{13}" name = "ssn" maxlength="13">
</div>
<div class="form-check">
<input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault1">
<label class="form-check-label" for="flexRadioDefault1">
남성
</label>
</div>
<div class="form-check">
<input class="form-check-input" type="radio" name="flexRadioDefault" id="flexRadioDefault2" checked>
<label class="form-check-label" for="flexRadioDefault2">
여성
</label>
</div>
<div class="row g-3">
<div class="col-sm-7">
도시명
<input type="text" class="form-control" placeholder="ex) 서울특별시" aria-label="City" name = "city_name" maxlength="20">
</div>
<div class="col-sm">
동명
<input type="text" class="form-control" placeholder="ex) 논현동" aria-label="State" name = "town_name" maxlength="20">
</div>
<div class="col-sm">
도로명
<input type="text" class="form-control" placeholder="ex) 테헤란로 221길" aria-label="Zip" name = "street_name" maxlength="20">
</div>
<div class="col-sm">
우편번호
<input type="text" class="form-control" placeholder="ex) 06049" aria-label="Zip" name = "zip_code" maxlength="20">
</div>
<div class="col-sm">
상세주소
<input type="text" class="form-control" placeholder="ex) 5층 505호" aria-label="Zip" name = "details" maxlength="20">
</div>
</div>
<div class="col-12">
<div class="form-check">
<input class="form-check-input" type="checkbox" id="gridCheck">
<label class="form-check-label" for="gridCheck">
확인했음.
</label>
</div>
</div>
<div class="col-12">
<button type="submit" class="btn btn-primary" >가입하기</button>
</div>
</form>
<script src="https://cdn.jsdelivr.net/npm/bootstrap#5.2.2/dist/js/bootstrap.bundle.min.js" integrity="sha384-OERcA2EqjJCMA+/3y+gxIOqMEjwtxJY7qPCqsdltbNJuaOe923+mo//f6V8Qbsw3" crossorigin="anonymous"></script>
</body>
</html>
'Users' entity to register with DB.
package My_Project.integration.entity;
import My_Project.integration.entity.Dto.UserInfoDto;
import lombok.*;
import javax.persistence.*;
import java.awt.*;
import java.time.LocalDateTime;
import java.util.ArrayList;
import java.util.List;
#Entity
#Getter
#NoArgsConstructor
#AllArgsConstructor
#Setter
#Table(uniqueConstraints = {#UniqueConstraint(columnNames = {"ssn","phone_number"})})
public class Users {
#Column(name = "id", length = 40, updatable = false)
#Id
private String id;
#Column(name = "password", length = 20, nullable = false)
private String password;
#Column(name = "name", length = 25, nullable = false)
private String name;
#Column(name = "phone_number", length = 12, nullable = false)
private String phoneNumber;
#Column(name = "ssn", length = 13, nullable = false, updatable = false)
private String ssn;
#Embedded
private Address address;
#Column(name = "point")
private Long point;
#OneToMany(mappedBy = "postedUser")
private List<PostInfo> uploadedPost = new ArrayList<>();
#OneToMany(mappedBy = "userId")
private List<PointHistory> pointHistories = new ArrayList<>();
#Embedded
private Dates dates;
public Users(UserInfoDto userInfoDto){
this.setId(userInfoDto.getId());
this.setPassword(userInfoDto.getPassword());
this.setPhoneNumber(userInfoDto.getPhoneNumber());
this.setSsn(userInfoDto.getSsn());
this.setPoint(0L);
Address address = new Address(
userInfoDto.getCityName(),
userInfoDto.getTownName(),
userInfoDto.getStreetName(),
userInfoDto.getZipCode(),
userInfoDto.getDetailsCode()
);
this.setAddress(address);
List<PostInfo> postInfoList = new ArrayList<>();
List<PointHistory> pointHistoryList = new ArrayList<>();
this.setUploadedPost(postInfoList);
this.setPointHistories(pointHistoryList);
Dates dates = new Dates(LocalDateTime.now(), LocalDateTime.now());
this.setDates(dates);
}
}
This is Embedded type 'Address' inside 'Users'
package My_Project.integration.entity;
import lombok.AllArgsConstructor;
import lombok.Getter;
import javax.persistence.Column;
import javax.persistence.Embeddable;
#Embeddable
#Getter
#AllArgsConstructor
public class Address {
#Column(name = "city_name", length = 20, nullable = false) //도시명
private String cityName;
#Column(name = "town_name", length = 20) //동명
private String townName;
#Column(name = "street_name", length = 20, nullable = false) //도로명
private String streetName;
#Column(name = "zip_code", length = 20) // 우편번호
private String zipCode;
#Column(name = "details",length = 20) //상세주소
private String detailsCode;
protected Address() {
}
}
This is a Dto class that receives a value instead of 'Users'.
package My_Project.integration.entity.Dto;
import My_Project.integration.entity.PointHistory;
import My_Project.integration.entity.PostInfo;
import lombok.Getter;
import lombok.Setter;
import java.util.List;
#Setter
#Getter
public class UserInfoDto {
private String id;
private String password;
private String name;
private String phoneNumber;
private String ssn;
private String cityName;
private String townName;
private String streetName;
private String zipCode;
private String detailsCode;
private Long point;
private List<PointHistory> pointHistories;
private List<PostInfo> postInfos;
public UserInfoDto(String id, String password, String name, String phoneNumber, String ssn, String cityName, String townName, String streetName, String zipCode, String detailsCode, Long point, List<PointHistory> pointHistories, List<PostInfo> postInfos) {
this.id = id;
this.password = password;
this.name = name;
this.phoneNumber = phoneNumber;
this.ssn = ssn;
this.cityName = cityName;
this.townName = townName;
this.streetName = streetName;
this.zipCode = zipCode;
this.detailsCode = detailsCode;
this.point = point;
this.pointHistories = pointHistories;
this.postInfos = postInfos;
}
public UserInfoDto() {
}
}
I want to put the values on 'Users' through 'UserInfoDto'. But It's doesn't work with error code above. What should I fix?
Error code
org.springframework.dao.DataIntegrityViolationException: not-null property references a null or transient value : My_Project.integration.entity.Users.address.cityName; nested exception is org.hibernate.PropertyValueException: not-null property references a null or transient value : My_Project.integration.entity.Users.address.cityName
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.convertHibernateAccessException(HibernateJpaDialect.java:294)
at org.springframework.orm.jpa.vendor.HibernateJpaDialect.translateExceptionIfPossible(HibernateJpaDialect.java:233)
at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.translateExceptionIfPossible(AbstractEntityManagerFactoryBean.java:551)
at org.springframework.dao.support.ChainedPersistenceExceptionTranslator.translateExceptionIfPossible(ChainedPersistenceExceptionTranslator.java:61)
at org.springframework.dao.support.DataAccessUtils.translateIfNecessary(DataAccessUtils.java:242)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:152)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.jpa.repository.support.CrudMethodMetadataPostProcessor$CrudMethodMetadataPopulatingMethodInterceptor.invoke(CrudMethodMetadataPostProcessor.java:174)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:97)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:215)
at jdk.proxy4/jdk.proxy4.$Proxy109.save(Unknown Source)
at My_Project.integration.service.UserService.addUsers(UserService.java:26)
at My_Project.integration.service.UserService$$FastClassBySpringCGLIB$$636d190f.invoke(<generated>)
at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:218)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:793)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:163)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.proceed(CglibAopProxy.java:763)
at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:708)
at My_Project.integration.service.UserService$$EnhancerBySpringCGLIB$$7615f959.addUsers(<generated>)
at My_Project.integration.controller.SignupPageController.signUp(SignupPageController.java:24)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:150)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:117)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:895)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:808)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1071)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:964)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:696)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:779)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:117)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:197)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:135)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:360)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:399)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1789)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: org.hibernate.PropertyValueException: not-null property references a null or transient value : My_Project.integration.entity.Users.address.cityName
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:122)
at org.hibernate.engine.internal.Nullability.checkNullability(Nullability.java:55)
at org.hibernate.action.internal.AbstractEntityInsertAction.nullifyTransientReferencesIfNotAlready(AbstractEntityInsertAction.java:116)
at org.hibernate.action.internal.AbstractEntityInsertAction.makeEntityManaged(AbstractEntityInsertAction.java:125)
at org.hibernate.engine.spi.ActionQueue.addResolvedEntityInsertAction(ActionQueue.java:289)
at org.hibernate.engine.spi.ActionQueue.addInsertAction(ActionQueue.java:263)
at org.hibernate.engine.spi.ActionQueue.addAction(ActionQueue.java:250)
at org.hibernate.event.internal.AbstractSaveEventListener.addInsertAction(AbstractSaveEventListener.java:338)
at org.hibernate.event.internal.AbstractSaveEventListener.performSaveOrReplicate(AbstractSaveEventListener.java:287)
at org.hibernate.event.internal.AbstractSaveEventListener.performSave(AbstractSaveEventListener.java:193)
at org.hibernate.event.internal.AbstractSaveEventListener.saveWithGeneratedId(AbstractSaveEventListener.java:135)
at org.hibernate.event.internal.DefaultMergeEventListener.saveTransientEntity(DefaultMergeEventListener.java:271)
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsTransient(DefaultMergeEventListener.java:243)
at org.hibernate.event.internal.DefaultMergeEventListener.entityIsDetached(DefaultMergeEventListener.java:318)
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:172)
at org.hibernate.event.internal.DefaultMergeEventListener.onMerge(DefaultMergeEventListener.java:70)
at org.hibernate.event.service.internal.EventListenerGroupImpl.fireEventOnEachListener(EventListenerGroupImpl.java:107)
at org.hibernate.internal.SessionImpl.fireMerge(SessionImpl.java:829)
at org.hibernate.internal.SessionImpl.merge(SessionImpl.java:816)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.orm.jpa.ExtendedEntityManagerCreator$ExtendedEntityManagerInvocationHandler.invoke(ExtendedEntityManagerCreator.java:362)
at jdk.proxy4/jdk.proxy4.$Proxy105.merge(Unknown Source)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.orm.jpa.SharedEntityManagerCreator$SharedEntityManagerInvocationHandler.invoke(SharedEntityManagerCreator.java:311)
at jdk.proxy4/jdk.proxy4.$Proxy105.merge(Unknown Source)
at org.springframework.data.jpa.repository.support.SimpleJpaRepository.save(SimpleJpaRepository.java:669)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.base/java.lang.reflect.Method.invoke(Method.java:568)
at org.springframework.data.repository.core.support.RepositoryMethodInvoker$RepositoryFragmentMethodInvoker.lambda$new$0(RepositoryMethodInvoker.java:289)
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.doInvoke(RepositoryMethodInvoker.java:137)
at org.springframework.data.repository.core.support.RepositoryMethodInvoker.invoke(RepositoryMethodInvoker.java:121)
at org.springframework.data.repository.core.support.RepositoryComposition$RepositoryFragments.invoke(RepositoryComposition.java:530)
at org.springframework.data.repository.core.support.RepositoryComposition.invoke(RepositoryComposition.java:286)
at org.springframework.data.repository.core.support.RepositoryFactorySupport$ImplementationMethodExecutionInterceptor.invoke(RepositoryFactorySupport.java:640)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.doInvoke(QueryExecutorMethodInterceptor.java:164)
at org.springframework.data.repository.core.support.QueryExecutorMethodInterceptor.invoke(QueryExecutorMethodInterceptor.java:139)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.data.projection.DefaultMethodInvokingMethodInterceptor.invoke(DefaultMethodInvokingMethodInterceptor.java:81)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:123)
at org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:388)
at org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:119)
at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186)
at org.springframework.dao.support.PersistenceExceptionTranslationInterceptor.invoke(PersistenceExceptionTranslationInterceptor.java:137)
... 71 more

From the exception it seams that the field cityName is null somehow when you do the mapping. As there is a not null constraint on this field this causes the issue

Create form dynamically using thymeleaf

I am new in Spring MVC. I'm stuck for more than 24hrs trying to add a dynamic row using thymeleaf. I followed this link and also the thymeleaf documentation In this tutorial but i have not been able to make it work. Clicking addRow and removeRow doesn't work. Someone should please help me. Thanks
Here is my Controller code:
#Controller
#SessionAttributes("qualification")
public class QualificationController {
private final QualificationService qualificationService;
private final StaffService staffService;
private final CourseService courseService;
#Autowired
public QualificationController(QualificationService qualificationService,
StaffQualificationService service,
StaffService staffService, CourseService courseService) {
this.qualificationService = qualificationService;
this.staffService = staffService;
this.courseService = courseService;
}
#InitBinder
public void setAllowedFields(WebDataBinder dataBinder) {
dataBinder.setDisallowedFields("id");
}
#GetMapping("/staff/{id}/qualification")
public String initForm(#PathVariable("id") Integer id, Model model) {
Staff staff = staffService.findById(id);
staff.addQualification(new StaffQualification());
model.addAttribute("qualification", staff);
model.addAttribute("qualifications", qualificationService.findAll());
model.addAttribute("courses", courseService.findAll());
return "registration/qualification";
}
#PostMapping(path = "/staff/{id}/qualification/new", params = {"save"})
public String addQualification(#ModelAttribute("qualification")
#Valid Staff staff,
BindingResult result, RedirectAttributes attributes,
SessionStatus status) {
if (result.hasErrors()) {
return "registration/qualification";
}
staffService.save(staff);
attributes.addFlashAttribute("successMessage", "Qualification successfully saved");
status.setComplete();
return "registration/qualification";
}
#PostMapping(path = "/staff/{id}/qualification/new", params = {"addRow"})
public String addRow(final Staff staff, BindingResult result) {
staff.getQuals().add(new StaffQualification());
return "registration/qualification";
}
#PostMapping(params = "removeRow", path = {"/staff/{id}/qualification/new"})
public String removeRow(final Staff staff, final BindingResult result,
final HttpServletRequest request) {
final int rowId = Integer.parseInt(request.getParameter("removeRow"));
staff.removeQualification(staff.getQuals().remove(rowId));
return "registration/qualification";
}
}
My entities:
public class Staff extends NamedEntity {
#NotBlank(message = "First Name is blank")
private String firstName;
#NotBlank(message = "Last Name is blank")
private String lastName;
private String middleName;
#Digits(fraction = 0, integer = 10)
#NotBlank(message = "Please fill in your phone number")
private String phoneNumber;
private boolean married;
private String gender;
#Transient
private int age;
#OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "staff", orphanRemoval = true)
private List<StaffQualification> quals = new ArrayList<>();
#OneToMany(cascade = CascadeType.ALL, fetch = FetchType.LAZY, mappedBy = "staff", orphanRemoval = true)
private List<Document> documents = new ArrayList<>();
}
public class StaffQualification extends BaseEntity {
private String qualification;
private String course;
private String school;
#NotNull(message = "Date obtained qualification must be in the past")
#DateTimeFormat(iso = DateTimeFormat.ISO.DATE)
private LocalDate qualDate;
#ManyToOne
private Staff staff;
}
Thymeleaf code:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Staff form</title>
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css"
th:href="#{https://stackpath.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css}"
integrity="sha384-WskhaSGFgHYWDcbwN70/dfYBj47jz9qbsMId/iRN3ewGhXQFZCSftd1LZCfmhktB" crossorigin="anonymous">
</head>
<body>
<div class="justify-content-start">
<div th:include="fragments/bodyHeader.html"></div>
</div>
<div class="main body-content">
<div class="container">
<form th:object="${qualification}" th:action="#{/staff/{id}/qualification/new}" th:method="post">
<div class="alert alert-info" th:if="${successMessage}" th:utext="${successMessage}"></div>
<fieldset>
<legend class="w-auto" th:text="#{qualification.staff}">Staff Qualifications</legend>
<div>
<table id="items" class="table table-bordered">
<thead>
<tr>
<th th:scope="col">#</th>
<th th:scope="col">Title</th>
<th th:scope="col">Course</th>
<th th:scope="col">School</th>
<th th:scope="col" type="date">Date Obtained</th>
<th>
<button type="submit" name="addRow" th:text="#{qualification.row.add}">Add row</button>
</th>
</tr>
</thead>
<tbody id="tbodyContainer">
<tr th:each="row, rowStat : *{quals}">
<td th:text="${rowStat.count}">1</td>
<td>
<label>
<select th:field="*{quals[__${rowStat.index}__].qualification}">
<option th:each="var : ${qualifications}"
th:value="${var.id}"
th:text="${var.name}">
</option>
</select>
</label>
</td>
<td>
<label>
<select th:field="*{quals[__${rowStat.index}__].course}">
<option th:each="let : ${courses}"
th:value="${let.id}"
th:text="${let.name}">
</option>
</select>
</label>
</td>
<td>
<label>
<input type="text" th:field="*{quals[__${rowStat.index}__].school}"
th:errorClass="fieldError"/>
</label>
</td>
<td>
<label>
<input type="date" th:field="*{quals[__${rowStat.index}__].qualDate}"/>
</label>
</td>
<td>
<button type="submit" name="removeRow" th:value="${rowStat.index}"
th:text="#{qualification.row.remove}">Remove row
</button>
</td>
</tr>
</tbody>
</table>
</div>
<div>
<button class="btn btn-primary" name="save" style="margin-right: 50px" type="submit">Save</button>
</div>
</fieldset>
<div class="form-actions row justify-content-center" style="padding-top:10px; padding-right: 200px">
<a th:if="${qualification.id}" href="/staff/{id}/qualification"
th:href="#{/staff/{id}/qualification/(id=${qualification.id})}"
class="btn btn-primary">Next</a>
</div>
</form>
</div>
</div>
</body>
</html>
Account Controller:
#Controller
#SessionAttributes("account")
public class AccountController {
private final PencomService pencomService;
private final StaffService staffService;
private final BankService bankService;
#Autowired
public AccountController(PencomService pencomService, StaffService staffService,
BankService bankService) {
this.pencomService = pencomService;
this.staffService = staffService;
this.bankService = bankService;
}
#InitBinder
public void setAllowedFields(WebDataBinder dataBinder) {
dataBinder.setDisallowedFields("id");
}
#GetMapping("/staff/{id}/account")
public String initCreationForm(#PathVariable("id") Integer staffId, Model model) {
Staff staff = staffService.findById(staffId);
staff.setBankAccount(new BankAccount());
staff.setPencomAccount(new PencomAccount());
model.addAttribute("account", staff);
model.addAttribute("listBanks", bankService.findAll());
model.addAttribute("listPensions", pencomService.findAll());
return "registration/account";
}
#PostMapping("/staff/{id}/account/new")
public String addAccount(#ModelAttribute("account") #Valid Staff staff,
BindingResult result, RedirectAttributes attributes, SessionStatus status) {
if (result.hasErrors()) {
return "registration/account";
} else {
staffService.save(staff);
attributes.addFlashAttribute("successMessage", "Accounts successfully saved");
status.setComplete();
return "/registration/account";
}
}
}
Error Message:
java.lang.NullPointerException: null
at com.chairmo.cadre.controller.AccountController.initCreationForm(AccountController.java:48) ~[classes/:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:879) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:793) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1040) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:898) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:634) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) ~[spring-webmvc-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) ~[tomcat-embed-websocket-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) ~[spring-web-5.2.7.RELEASE.jar:5.2.7.RELEASE]
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:541) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:373) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:868) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1590) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) ~[na:na]
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) ~[na:na]
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) ~[tomcat-embed-core-9.0.36.jar:9.0.36]
at java.base/java.lang.Thread.run(Thread.java:834) ~[na:na]

Failed parsing Thymeleaf template when validating form with Spring Bean Validation API

I am following this book "Spring In Action 5th Edition" example, but having this error whenever validation on form input found something invalid.
error:
Whitelabel Error Page
This application has no explicit mapping for /error, so you are seeing this as a fallback.
Sun Oct 27 17:26:07 SGT 2019
There was an unexpected error (type=Internal Server Error, status=500).
An error happened during template parsing (template: "class path resource [templates/design.html]")
org.thymeleaf.exceptions.TemplateInputException: An error happened during template parsing (template: "class path resource [templates/design.html]")
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:241)
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parseStandalone(AbstractMarkupTemplateParser.java:100)
at org.thymeleaf.engine.TemplateManager.parseAndProcess(TemplateManager.java:666)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1098)
at org.thymeleaf.TemplateEngine.process(TemplateEngine.java:1072)
at org.thymeleaf.spring5.view.ThymeleafView.renderFragment(ThymeleafView.java:362)
at org.thymeleaf.spring5.view.ThymeleafView.render(ThymeleafView.java:189)
at org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1371)
at org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1117)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1056)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:942)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1005)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:908)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:660)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:882)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:741)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:92)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:93)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:200)
at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:118)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343)
at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408)
at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)
at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:853)
at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1587)
at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.attoparser.ParseException: Error during execution of processor 'org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor' (template: "design" - line 59, col 20)
at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:393)
at org.attoparser.MarkupParser.parse(MarkupParser.java:257)
at org.thymeleaf.templateparser.markup.AbstractMarkupTemplateParser.parse(AbstractMarkupTemplateParser.java:230)
... 52 more
Caused by: org.thymeleaf.exceptions.TemplateProcessingException: Error during execution of processor 'org.thymeleaf.spring5.processor.SpringInputGeneralFieldTagProcessor' (template: "design" - line 59, col 20)
at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:117)
at org.thymeleaf.processor.element.AbstractElementTagProcessor.process(AbstractElementTagProcessor.java:95)
at org.thymeleaf.util.ProcessorConfigurationUtils$ElementTagProcessorWrapper.process(ProcessorConfigurationUtils.java:633)
at org.thymeleaf.engine.ProcessorTemplateHandler.handleStandaloneElement(ProcessorTemplateHandler.java:918)
at org.thymeleaf.engine.TemplateHandlerAdapterMarkupHandler.handleStandaloneElementEnd(TemplateHandlerAdapterMarkupHandler.java:260)
at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler$InlineMarkupAdapterPreProcessorHandler.handleStandaloneElementEnd(InlinedOutputExpressionMarkupHandler.java:256)
at org.thymeleaf.standard.inline.OutputExpressionInlinePreProcessorHandler.handleStandaloneElementEnd(OutputExpressionInlinePreProcessorHandler.java:169)
at org.thymeleaf.templateparser.markup.InlinedOutputExpressionMarkupHandler.handleStandaloneElementEnd(InlinedOutputExpressionMarkupHandler.java:104)
at org.attoparser.HtmlElement.handleStandaloneElementEnd(HtmlElement.java:79)
at org.attoparser.HtmlMarkupHandler.handleStandaloneElementEnd(HtmlMarkupHandler.java:241)
at org.attoparser.MarkupEventProcessorHandler.handleStandaloneElementEnd(MarkupEventProcessorHandler.java:327)
at org.attoparser.ParsingElementMarkupUtil.parseStandaloneElement(ParsingElementMarkupUtil.java:96)
at org.attoparser.MarkupParser.parseBuffer(MarkupParser.java:706)
at org.attoparser.MarkupParser.parseDocument(MarkupParser.java:301)
... 54 more
Caused by: java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'design' available as request attribute
at org.springframework.web.servlet.support.BindStatus.<init>(BindStatus.java:153)
at org.springframework.web.servlet.support.RequestContext.getBindStatus(RequestContext.java:903)
at org.thymeleaf.spring5.context.webmvc.SpringWebMvcThymeleafRequestContext.getBindStatus(SpringWebMvcThymeleafRequestContext.java:227)
at org.thymeleaf.spring5.util.FieldUtils.getBindStatusFromParsedExpression(FieldUtils.java:306)
at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:253)
at org.thymeleaf.spring5.util.FieldUtils.getBindStatus(FieldUtils.java:227)
at org.thymeleaf.spring5.processor.AbstractSpringFieldTagProcessor.doProcess(AbstractSpringFieldTagProcessor.java:174)
at org.thymeleaf.processor.element.AbstractAttributeTagProcessor.doProcess(AbstractAttributeTagProcessor.java:74)
... 67 more
Object been passed to view template:
package tacos;
import java.util.List;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;
import lombok.Data;
#Data
public class Taco {
#NotNull
#Size(min=5, message="Name must be at least 5 characters long")
private String name;
#NotNull
#Size(min=2, message="You must choose at least 2 ingredient")
private List<String> ingredients;
}
Thymeleaf view template:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:th="http://www.thymeleaf.org">
<head>
<title>Taco Cloud</title>
<link rel="stylesheet" th:href="#{/styles.css}" />
</head>
<body>
<h1>Design your taco!</h1>
<img th:src="#{/images/TacoCloud.png}"/>
<form method="POST" th:object="${design}">
<div class="grid">
<div class="ingredient-group" id="wraps">
<h3>Designate your wrap:</h3>
<div th:each="ingredient : ${wrap}">
<input name="ingredients" type="checkbox" th:value="${ingredient.id}"
/>
<span th:text="${ingredient.name}">INGREDIENT</span><br/>
</div>
</div>
<div class="ingredient-group" id="proteins">
<h3>Pick your protein:</h3>
<div th:each="ingredient : ${protein}">
<input name="ingredients" type="checkbox" th:value="${ingredient.id}"
/>
<span th:text="${ingredient.name}">INGREDIENT</span><br/>
</div>
</div>
<div class="ingredient-group" id="cheeses">
<h3>Choose your cheese:</h3>
<div th:each="ingredient : ${cheese}">
<input name="ingredients" type="checkbox" th:value="${ingredient.id}"
/>
<span th:text="${ingredient.name}">INGREDIENT</span><br/>
</div>
</div>
<div class="ingredient-group" id="veggies">
<h3>Determine your veggies:</h3>
<div th:each="ingredient : ${veggies}">
<input name="ingredients" type="checkbox" th:value="${ingredient.id}"
/>
<span th:text="${ingredient.name}">INGREDIENT</span><br/>
</div>
</div>
<div class="ingredient-group" id="sauces">
<h3>Select your sauce:</h3>
<div th:each="ingredient : ${sauce}">
<input name="ingredients" type="checkbox" th:value="${ingredient.id}"
/>
<span th:text="${ingredient.name}">INGREDIENT</span><br/>
</div>
</div>
</div>
<div>
<h3>Name your taco creation:</h3>
<input type="text" th:field="*{name}"/>
<span class="validationError"
th:if="${#fields.hasErrors('name')}"
th:errors="*{name}">Name Error</span>
<br/>
<button>Submit your taco</button>
</div>
</form>
</body>
</html>
Controller display form method:
#GetMapping
public String showDesignForm(Model model)
{
List<Ingredient> ingredients = Arrays.asList(
new Ingredient("FLTO", "Flour Tortilla", Type.WRAP),
new Ingredient("COTO", "Corn Tortilla", Type.WRAP),
new Ingredient("GRBF", "Ground Beef", Type.PROTEIN),
new Ingredient("CARN", "Carnitas", Type.PROTEIN),
new Ingredient("TMTO", "Diced Tomatoes", Type.VEGGIES),
new Ingredient("LETC", "Lettuce", Type.VEGGIES),
new Ingredient("CHED", "Cheddar", Type.CHEESE),
new Ingredient("JACK", "Monterrey Jack", Type.CHEESE),
new Ingredient("SLSA", "Salsa", Type.SAUCE),
new Ingredient("SRCR", "Sour Cream", Type.SAUCE)
);
Type[] types = Ingredient.Type.values();
for (Type type : types)
{
model.addAttribute(type.toString().toLowerCase(),
filterByType(ingredients, type));
}
model.addAttribute("design", new Taco());
return "design";
}
Controller process form method:
#PostMapping
public String processDesign(#Valid Taco taco, Errors errors)
{
if (errors.hasErrors())
{
return "design";
}
// Save the taco design...
// We will do this in chapter 3
log.info("Processing design: " + taco);
return "redirect:/orders/current";
}
I have no issue in displaying the form. All input fields are well received and processed. But whenever there is validation errors, and process form method call back to the form page "design", the form failed to parse with above mentioned errors.
I had tried:1. to disable validation on the Taco.name field;2. to remove the <span> which displays the name field errors. But none of them work.
Thanks in advance for your help.

I try change this code
#PostMapping
public String processDesign(#Valid Taco taco, Errors errors)
{
if (errors.hasErrors())
{
return "design";
}
// Save the taco design...
// We will do this in chapter 3
log.info("Processing design: " + taco);
return "redirect:/orders/current";
}
to
#PostMapping
public String processDesign(#Valid Taco taco, Errors errors)
{
if (errors.hasErrors())
{
return "redirect:/design";
}
// Save the taco design...
// We will do this in chapter 3
log.info("Processing design: " + taco);
return "redirect:/orders/current";
}
and it works.

I had a similar problem. This is what I did to fix it.
1st - change the opening header in design.html to the following
<form method="POST" th:object="${design}">
2nd - my processDesign() method looks like this:
public String processDesign(#Valid #ModelAttribute("design") Taco taco, Errors errors) {
if (errors.hasErrors()) {
return "design";
}
// this will save our Taco Design
// log.info("Processing design: " + design);
return "redirect:/orders/current";
}
I hope, that this helps and I'm not too late. In general, there are multiple similar errors in the book, that need to be fixed, but the community around it is great, so no need to worry.
Cheers

The code in book has some error, here is the right code from the github of book:
// tag::head[]
package tacos.web;
import java.util.Arrays;
import java.util.List;
import java.util.stream.Collectors;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.Errors;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import lombok.extern.slf4j.Slf4j;
import tacos.Ingredient;
import tacos.Ingredient.Type;
import tacos.Taco;
#Slf4j
#Controller
#RequestMapping("/design")
public class DesignTacoController {
//end::head[]
#ModelAttribute
public void addIngredientsToModel(Model model) {
List<Ingredient> ingredients = Arrays.asList(
new Ingredient("FLTO", "Flour Tortilla", Type.WRAP),
new Ingredient("COTO", "Corn Tortilla", Type.WRAP),
new Ingredient("GRBF", "Ground Beef", Type.PROTEIN),
new Ingredient("CARN", "Carnitas", Type.PROTEIN),
new Ingredient("TMTO", "Diced Tomatoes", Type.VEGGIES),
new Ingredient("LETC", "Lettuce", Type.VEGGIES),
new Ingredient("CHED", "Cheddar", Type.CHEESE),
new Ingredient("JACK", "Monterrey Jack", Type.CHEESE),
new Ingredient("SLSA", "Salsa", Type.SAUCE),
new Ingredient("SRCR", "Sour Cream", Type.SAUCE)
);
Type[] types = Ingredient.Type.values();
for (Type type : types) {
model.addAttribute(type.toString().toLowerCase(),
filterByType(ingredients, type));
}
}
//tag::showDesignForm[]
#GetMapping
public String showDesignForm(Model model) {
model.addAttribute("design", new Taco());
return "design";
}
//end::showDesignForm[]
/*
//tag::processDesign[]
#PostMapping
public String processDesign(Design design) {
// Save the taco design...
// We'll do this in chapter 3
log.info("Processing design: " + design);
return "redirect:/orders/current";
}
//end::processDesign[]
*/
//tag::processDesignValidated[]
#PostMapping
public String processDesign(#Valid #ModelAttribute("design") Taco design, Errors errors, Model model) {
if (errors.hasErrors()) {
return "design";
}
// Save the taco design...
// We'll do this in chapter 3
log.info("Processing design: " + design);
return "redirect:/orders/current";
}
//end::processDesignValidated[]
//tag::filterByType[]
private List<Ingredient> filterByType(
List<Ingredient> ingredients, Type type) {
return ingredients
.stream()
.filter(x -> x.getType().equals(type))
.collect(Collectors.toList());
}
//end::filterByType[]
// tag::foot[]
}
// end::foot[]
and you can get all the source code from https://github.com/habuma/spring-in-action-5-samples
ps: In my opinion, the possible reason is that #valide Taco will transport a Taco object named taco to the template, while we use the design in the tempalte, so, the template cannot find the design which result in the error. And #ModelAttribute('design') can renamed the Taco object to design. On the other hand, we need the ingredients list to init the template whenever we visit the tacoDesign html, that is the reason that we separate the addIngredientsToModel method and using #ModelAttribute above it.

How do validation with thymeleaf and bean validation?

I'm trying to perform a simple validation in my view, I know that the jsf it is very simple to do more in the spring mvc is giving me a headache ...
Can anyone help me with this validation? see what I'm doing wrong ??
my model
package br.com.nextinfo.multimedia.web.model;
import javax.persistence.CascadeType;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.JoinColumn;
import javax.persistence.OneToOne;
import javax.persistence.SequenceGenerator;
import javax.persistence.Table;
import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.NotBlank;
#Table
#Entity(name="slideshow")
public class SlideShow {
private Long condigo;
private String titulo;
private String subTitulo;
private ImagemSlider imagemSlider;
#Id
#GeneratedValue(generator="codigo",strategy=GenerationType.AUTO)
#SequenceGenerator(name = "codigo", sequenceName = "codigo_slideshow")
#Column(name = "CODIGO")
public Long getCondigo() {
return condigo;
}
#NotNull
#NotBlank
#Column(name = "TITULO" ,nullable = false)
public String getTitulo() {
return titulo;
}
#OneToOne(cascade = CascadeType.ALL)
#JoinColumn(name ="CODIGO_IMAGEM")
public ImagemSlider getImagemSlider() {
return imagemSlider;
}
#NotNull
#NotBlank
#Column(name = "SUBTITULO" ,nullable = false)
public String getSubTitulo() {
return subTitulo;
}
public void setTitulo(String titulo) {
this.titulo = titulo;
}
public void setSubTitulo(String subTitulo) {
this.subTitulo = subTitulo;
}
public void setImagemSlider(ImagemSlider imagemSlider) {
this.imagemSlider = imagemSlider;
}
public void setCondigo(Long condigo) {
this.condigo = condigo;
}
}
my controller
package br.com.nextinfo.multimedia.web.controller;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.validation.Valid;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.mvc.support.RedirectAttributes;
import br.com.nextinfo.multimedia.web.model.ImagemSlider;
import br.com.nextinfo.multimedia.web.model.SlideShow;
import br.com.nextinfo.multimedia.web.services.AbstractFactoryService;
import br.com.nextinfo.multimedia.web.services.CreateSlideShowService;
import br.com.nextinfo.multimedia.web.services.ImagemServiceDatabase;
#Controller
#RequestMapping("/arquivosbanco/")
public class FilesDatabaseController implements AbstractControllerApp ,PadraoCrudMetodos<ImagemSlider> {
#Autowired
private ImagemServiceDatabase imagemService;
#Autowired
private CreateSlideShowService slideShowService;
#Override
public String getRequisicaoPadrao(Model model) {
List<ImagemSlider> lista = this.getAbstractService().realizaPaginacao("0", "10" ,null).getContent();
model.addAttribute("listaObjetoPageStart", lista);
model.addAttribute("img", new ImagemSlider());
return this.getUrlInicial();
}
#Override
public String getUrlInicial() {
return "arquivos/database/listarquivosbancodedados";
}
#ResponseBody
#RequestMapping(value = "/img", method = RequestMethod.GET)
public void showImage(#RequestParam("id") Long id, HttpServletResponse response,HttpServletRequest request) throws ServletException, IOException {
response.setContentType("image/jpeg, image/jpg, image/png, image/gif");
ImagemSlider imgdatabase = imagemService.getAbstractService().getBean(id);
if (imgdatabase!=null ) {
response.getOutputStream().write(imgdatabase.getImage());
response.getOutputStream().close();
}
}
#Override
public AbstractFactoryService<ImagemSlider> getAbstractService() {
return imagemService;
}
#RequestMapping(value = "/createslideshow/{imagemid}" ,method=RequestMethod.GET)
public String createslider(#PathVariable("imagemid") Long image,Model model){
final ImagemSlider img = this.imagemService.getBean(image);
model.addAttribute("imgslider", img);
model.addAttribute("slideshow", new SlideShow());
return "arquivos/createdisplay";
}
#RequestMapping(value = "/save" ,method=RequestMethod.POST)
public String saveSlideShowr( #RequestParam Long imagemid ,#Valid final SlideShow slideshow,final BindingResult result ,RedirectAttributes redirectAttrs){
ImagemSlider img = this.imagemService.getBean(imagemid);
if (result.hasErrors()) {
redirectAttrs.addFlashAttribute("org.springframework.validation.BindingResult.strategy", result);
redirectAttrs.addFlashAttribute("slideshow", slideshow);
return "redirect:/arquivosbanco/createslideshow/"+imagemid;
}else{
this.slideShowService.salva(slideshow);
if (img != null) {
slideshow.setImagemSlider(img);
this.slideShowService.salva(slideshow);
}
}
return this.getUrlInicial();
}
}
<html xmlns:th="http://www.thymeleaf.org"
xmlns:layout="http://www.ultraq.net.nz/thymeleaf/layout"
layout:decorator="/templates/layouts/principal">
<head>
<title>Criacao slideshow</title>
</head>
<body>
<div class="container-fluid" layout:fragment="corpopagina">
<h3 class="page-header text-center">Criacao slide show</h3>
<form id="registration-form" class="form-horizontal" th:object="${slideShow}" th:action="#{/arquivosbanco/save/?imagemid=}+${imgslider.codigo}" method="post">
<!-- Print all errors here!-->
<div class="col-md-4 col-xs-12">
<div class="thumbnail">
<img class="img-responsive" th:attr="src=#{'/upload/img?codigo='+${imgslider.codigo}}" width="400" height="400" />
<span class="text-center"></span>
</div>
<div class="caption">
<h5>Codigo <span th:text="${imgslider.codigo}" class="badge" style="margin-left:20px">5</span></h5>
<h5>Nome <span th:text="${imgslider.nome}" class="badge" style="margin-left:20px">5</span></h5>
</div>
</div>
<div class="col-md-8 col-xs-12">
<div class="form-group">
<label class="col-xs-3 control-label">Titulo principal</label>
<div class="col-md-8">
<input type="text" class="form-control" name="titulo" />
</div>
</div>
<div class="form-group">
<label class="col-xs-3 control-label">Sub titulo</label>
<div class="col-md-8">
<input type="text" class="form-control input-xs" name="subTitulo" />
</div>
</div>
<div class="form-actions">
<label class="col-md-3 control-label"></label>
<div class="col-md-7">
<button type="submit" class="btn btn-success btn-large">Salvar</button>
</div>
<div class="col-md-1"></div>
</div>
</div>
</form>
</div>
</body>
in my controller is validating usually more in view does not show anything how can I solve?
I am quite some time on stackoverflow, most can not find the solution ...

Your view is not showing anything as you have not included the error messages in your template. Here is an example below.
<td th:if="${#fields.hasErrors('age')}" th:errors="*{age}">Name Error</td>

Spring MVC : unable to display drop down

I am not getting the drop down value in Profession. Actually I am getting exception
javax.servlet.ServletException: Type [java.lang.String] is not valid for option items
org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:848)
org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:781)
org.apache.jsp.WEB_002dINF.views.Registration_jsp._jspService(org.apache.jsp.WEB_002dINF.views.Registration_jsp:85)
org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:322)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:238)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:263)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1208)
org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:992)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:939)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:827)
javax.servlet.http.HttpServlet.service(HttpServlet.java:697)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:812)
javax.servlet.http.HttpServlet.service(HttpServlet.java:810)
org.jboss.web.tomcat.filters.ReplyHeaderFilter.doFilter(ReplyHeaderFilter.java:81)
root cause
javax.servlet.jsp.JspException: Type [java.lang.String] is not valid for option items
org.springframework.web.servlet.tags.form.OptionWriter.writeOptions(OptionWriter.java:142)
org.springframework.web.servlet.tags.form.SelectTag.writeTagContent(SelectTag.java:223)
org.springframework.web.servlet.tags.form.AbstractFormTag.doStartTagInternal(AbstractFormTag.java:103)
org.springframework.web.servlet.tags.RequestContextAwareTag.doStartTag(RequestContextAwareTag.java:80)
org.apache.jsp.WEB_002dINF.views.Registration_jsp._jspx_meth_form_select_0(org.apache.jsp.WEB_002dINF.views.Registration_jsp:283)
org.apache.jsp.WEB_002dINF.views.Registration_jsp._jspx_meth_form_form_0(org.apache.jsp.WEB_002dINF.views.Registration_jsp:144)
I understand something wrong with select tag .
please help
RegisterController
package net.codejava.spring.controller;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import net.codejava.spring.model.User;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.ui.ModelMap;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
#Controller
#RequestMapping(value = "/register")
public class RegisterController {
#RequestMapping(method = RequestMethod.GET)
public ModelAndView initForm() {
User user = new User();
user.setUsername("Anukul");
ModelAndView mav = new ModelAndView("Registration");
//=== default user name======
//model.addAttribute("userNameDefault", "Enter Name");
mav.addObject("userNameDefault", "Enter Name");
//==== creating drop down list =====
Map<String,String> profDropDown = new HashMap<String, String>();
profDropDown.put("Lecturer", "Lecturer");
profDropDown.put("proff", "proff");
// //==== adding drop down to user ====
mav.addObject("ProffesionList", profDropDown);
mav.addObject("user",user);
//==== user added to model =========
return mav;
}
#RequestMapping(method = RequestMethod.POST)
public String submitForm(Model model,#ModelAttribute User user) {
model.addAttribute(user);
// implement your own registration logic here...
return "RegistrationSuccess";
}
}
Registration.jsp
<%# page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Registration</title>
</head>
<body>
<div align="center">
<h1>reached here</h1>
<form:form action="register" method="POST" commandName="user">
<table border="0">
<tr>
<td colspan="2" align="center"><h2>Spring MVC Form Demo - Registration</h2></td>
</tr>
<tr>
<td>User Name:</td>
<td><form:input path="username" /></td>
</tr>
<tr>
<td>Password:</td>
<td><form:password path="password" /></td>
</tr>
<tr>
<td>E-mail:</td>
<td><form:input path="email" /></td>
</tr>
<tr>
<td>Birthday (mm/dd/yyyy):</td>
<td><form:input path="birthDate" /></td>
</tr>
<tr>
<td>Profession:</td>
<td><form:select path="profession" items="${ProffesionList}" /></td>
</tr>
<tr>
<td colspan="2" align="center"><input type="submit" value="Register" /></td>
</tr>
</table>
</form:form>
</div>
</body>
User.java
package net.codejava.spring.model;
import java.util.Date;
public class User {
private String username;
private String password;
private String email;
private Date birthDate;
private String profession;
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public Date getBirthDate() {
return birthDate;
}
public void setBirthDate(Date birthDate) {
this.birthDate = birthDate;
}
public String getProfession() {
return profession;
}
public void setProfession(String profession) {
this.profession = profession;
}
}
----------------

does this works for you
<form:select id="profession" path="profession">
<form:options items="${ProffesionList}"/>
</form:select>
or try with this
<form:select id="profession" path="profession">
<c:forEach var="prof" items="${ProffesionList}">
<form:option value="${prof.key}" label="${prof.value}" />
</c:forEach>
</form:select>
Controller
#RequestMapping(method = RequestMethod.POST)
public String submitForm(Model model,#ModelAttribute User user) {
//==== creating drop down list =====
Map<String,String> profDropDown = new HashMap<String, String>();
profDropDown.put("Lecturer", "Lecturer");
profDropDown.put("proff", "proff");
// //==== adding drop down to user ====
mav.addObject("ProffesionList", profDropDown);
model.addAttribute(user);
// implement your own registration logic here...
return "RegistrationSuccess";
}
or add #ModelATtribute
#ModelAttribute("ProffesionList")
public Map<String,String> getProfessions(){
Map<String,String> profDropDown = new HashMap<String, String>();
profDropDown.put("Lecturer", "Lecturer");
profDropDown.put("proff", "proff");
return profDropDown;
}

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Your problem is that when you do mm.addAttribute("prodottoDaModificare",p), p is not a Prodotto object, but an Option. And of course, Option has no nome property. Use mm.addAttribute("prodottoDaModificare",p.orElse(null)) (or if the object must be there, then orElseThrow).

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