I am trying to implement validation using annotations, but these validations don't work and the form gets submitted with null values.
I don't know what is missing, how to implement validations using annotations in struts2 in action that implements ModelDriven interface?
This is my struts.xml
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">
<struts>
<package name="default" extends="struts-default">
<action name="saveOrUpdateUser" method="saveOrUpdate1" class="com.vaannila.web.Userqqqq">
<result name="success" type="redirect">listUser</result>
<result name="input">/register.jsp</result>
</action>
<action name="listUser" method="list" class="com.vaannila.web.Userqqqq">
<result name="success">/register.jsp</result>
<result name="input">/register.jsp</result>
</action>
<action name="editUser" method="edit" class="com.vaannila.web.Userqqqq">
<result name="success">/register.jsp</result>
<result name="input">/register.jsp</result>
</action>
<action name="deleteUser" method="delete" class="com.vaannila.web.Userqqqq">
<result name="success" type="redirect">listUser</result>
<result name="input">/register.jsp</result>
</action>
</package>
</struts>
This is my jsp page
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<%#taglib uri="/struts-tags" prefix="s"%>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Registration Page</title>
<s:head />
<style type="text/css">
#import url(style.css);
</style>
</head>
<body>
<s:actionerror/>
<s:form action="saveOrUpdateUser" validate="true">
<s:push value="user">
<s:hidden name="id" />
<s:textfield name="name" label="User Name" required="true"/>
<s:radio name="gender" label="Gender" list="{'Male','Female'}" />
<s:select name="country" list="{'India','USA','UK'}" headerKey=""
headerValue="Select" label="Select a country" />
<s:textarea name="aboutYou" label="About You" />
<s:checkbox name="mailingList"
label="Would you like to join our mailing list?" />
<s:submit />
</s:push>
</s:form>
<s:if test="userList.size() > 0">
<div class="content">
<table class="userTable" cellpadding="5px">
<tr class="even">
<th>Name</th>
<th>Gender</th>
<th>Country</th>
<th>About You</th>
<th>Mailing List</th>
<th>Edit</th>
<th>Delete</th>
</tr>
<s:iterator value="userList" status="userStatus">
<tr
class="<s:if test="#userStatus.odd == true ">odd</s:if><s:else>even</s:else>">
<td><s:property value="name" /></td>
<td><s:property value="gender" /></td>
<td><s:property value="country" /></td>
<td><s:property value="aboutYou" /></td>
<td><s:property value="mailingList" /></td>
<td><s:url id="editURL" action="editUser">
<s:param name="id" value="%{id}"></s:param>
</s:url> <s:a href="%{editURL}">Edit</s:a></td>
<td><s:url id="deleteURL" action="deleteUser">
<s:param name="id" value="%{id}"></s:param>
</s:url> <s:a href="%{deleteURL}">Delete</s:a></td>
</tr>
</s:iterator>
</table>
</div>
</s:if>
</body>
</html>
This is my action class
package com.vaannila.web;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.http.HttpServletRequest;
import org.apache.struts2.ServletActionContext;
import com.opensymphony.xwork2.ActionContext;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.vaannila.dao.UserDAO;
import com.vaannila.domain.User;
public class UserAction extends ActionSupport implements ModelDriven<User> {
private static final long serialVersionUID = -6659925652584240539L;
private User user = new User();
private List<User> userList = new ArrayList<User>();
private UserDAO userDAO = new UserDAO();
#Override
public User getModel() {
return user;
}
/**
* To save or update user.
* #return String
*/
public String saveOrUpdate()
{
System.out.println(user.getName());
userDAO.saveOrUpdateUser(user);
return SUCCESS;
}
/**
* To list all users.
* #return String
*/
public String list()
{
userList = userDAO.listUser();
return SUCCESS;
}
/**
* To delete a user.
* #return String
*/
public String delete()
{
HttpServletRequest request = (HttpServletRequest) ActionContext.getContext().get(ServletActionContext.HTTP_REQUEST);
userDAO.deleteUser(Long.parseLong(request.getParameter("id")));
return SUCCESS;
}
/**
* To list a single user by Id.
* #return String
*/
public String edit()
{
HttpServletRequest request = (HttpServletRequest) ActionContext.getContext().get(ServletActionContext.HTTP_REQUEST);
user = userDAO.listUserById(Long.parseLong(request.getParameter("id")));
return SUCCESS;
}
public User getUser() {
return user;
}
public void setUser(User user) {
this.user = user;
}
public List<User> getUserList() {
return userList;
}
public void setUserList(List<User> userList) {
this.userList = userList;
}
}
This is my BEAN
package com.vaannila.domain;
import javax.persistence.Column;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.Id;
import javax.persistence.Table;
import com.opensymphony.xwork2.validator.annotations.RequiredFieldValidator;
import com.opensymphony.xwork2.validator.annotations.ValidatorType;
#Entity
#Table(name="USER1")
public class User {
private Long id;
private String name;
private String gender;
private String country;
private String aboutYou;
private Boolean mailingList;
#Id
#GeneratedValue
#Column(name="USER_ID")
public Long getId() {
return id;
}
public void setId(Long id) {
this.id = id;
}
#RequiredFieldValidator(type = ValidatorType.SIMPLE, fieldName = "name", message = "User Name field is empty.")
#Column(name="USER_NAME")
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
#RequiredFieldValidator(type = ValidatorType.SIMPLE, fieldName = "gender", message = "gender field is empty.")
#Column(name="USER_GENDER")
public String getGender() {
return gender;
}
public void setGender(String gender) {
this.gender = gender;
}
#Column(name="USER_COUNTRY")
public String getCountry() {
return country;
}
public void setCountry(String country) {
this.country = country;
}
#Column(name="USER_ABOUT_YOU")
public String getAboutYou() {
return aboutYou;
}
public void setAboutYou(String aboutYou) {
this.aboutYou = aboutYou;
}
#Column(name="USER_MAILING_LIST")
public Boolean getMailingList() {
return mailingList;
}
public void setMailingList(Boolean mailingList) {
this.mailingList = mailingList;
}
}
You need to add #VisitorFieldValidator annotation to user getter inside your action class.
#VisitorFieldValidator(appendPrefix = false)
public User getUser() {
return user;
}
Note that you need to set appendPrefix to false if your are using field names without user. prefix in JSP.
Also, you are probably want #RequiredStringValidator not #RequiredFieldValidator inside your bean.
#RequiredStringValidator(message = "User Name field is empty.")
#Column(name="USER_NAME")
public String getName() {
return name;
}
Related
Error shown is Bean property 'emergencyComplaint.emergencyComplaint' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
The getters and setters have the same return type, still it is showing this error.
JSP Page
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>CRS | Kolkata</title>
</head>
<body>
<div>
<h1>Lodge an Emergency Complaint Now</h1>
<form:form action="" method="post" modelAttribute="people">
<form:label
path="emergencyComplaint.emergencyComplaint"
for="emergencyComplaint"
>
Emergency Complaint
</form:label>
<form:input
type="text"
name="emergencyComplaint"
id="emergencyComplaint"
path="emergencyComplaint.emergencyComplaint"
/>
<form:label
path="emergencyComplaint.status"
for="emergencyComplaintStatus"
>Status</form:label
>
<form:input
type="text"
name="emergencyComplaintStatus"
id="emergencyComplaintStatus"
path="emergencyComplaint.status"
></form:input>
<form:label path="name" for="name">Name</form:label>
<form:input path="name" type="text" name="name" id="name" />
<form:label path="phoneNumber" for="phoneNumber"
>Phone Number</form:label
>
<form:input
path="phoneNumber"
type="text"
name="phoneNumber"
id="phoneNumber"
/>
<button type="submit">Lodge</button>
</form:form>
</div>
</body>
</html>
Model Class
package com.naha.crimereportingsystem.people;
import java.util.List;
import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.persistence.OneToOne;
import com.naha.crimereportingsystem.emergencyComplaint.EmergencyComplaint;
#Entity
public class People {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
private long id;
private String name;
private String phoneNumber;
#OneToMany(targetEntity = EmergencyComplaint.class, cascade = CascadeType.ALL)
private List<EmergencyComplaint> emergencyComplaint;
public People() {
}
public People(long id, String name, String phoneNumber) {
this.id = id;
this.name = name;
this.phoneNumber = phoneNumber;
this.emergencyComplaint = (List<EmergencyComplaint>) new EmergencyComplaint();
}
public List<EmergencyComplaint> getEmergencyComplaint() {
return emergencyComplaint;
}
public void setEmergencyComplaint(List<EmergencyComplaint> emergencyComplaint) {
this.emergencyComplaint = emergencyComplaint;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getName() {
return name;
}
public String getPhoneNumber() {
return phoneNumber;
}
public void setPhoneNumber(final String phoneNumber) {
this.phoneNumber = phoneNumber;
}
public void setName(final String name) {
this.name = name;
}
}
Mapped Other Model Class
package com.naha.crimereportingsystem.emergencyComplaint;
import javax.persistence.Entity;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
#Entity
public class EmergencyComplaint {
#Id
#GeneratedValue(strategy = GenerationType.AUTO)
long id;
private String emergencyComplaint;
private String status;
public String getEmergencyComplaint() {
return emergencyComplaint;
}
public long getId() {
return id;
}
public void setId(long id) {
this.id = id;
}
public String getStatus() {
return status;
}
public void setStatus(String status) {
this.status = status;
}
public void setEmergencyComplaint(String emergencyComplaint) {
this.emergencyComplaint = emergencyComplaint;
}
public EmergencyComplaint(long id, String emergencyComplaint, String status) {
this.id = id;
this.emergencyComplaint = emergencyComplaint;
this.status = status;
}
public EmergencyComplaint(String emergencyComplaint, String status) {
this.emergencyComplaint = emergencyComplaint;
this.status = status;
}
public EmergencyComplaint() {
}
}
This is a valid error. Take a close look at your Entity and your modelAttribute. There is no such thing emergencyComplaint.emergencyComplaint.
So, instead of:
<form:input type="text" name="emergencyComplaint" id="emergencyComplaint" path="emergencyComplaint.emergencyComplaint" />
Try this:
<form:input type="text" name="emergencyComplaint" id="emergencyComplaint" path="emergencyComplaint" />
I do not have OneToMany example handy but I think you are smart enough to identify the issue by now while reading this. If not then to get an idea, take a look at this and this.
I am writing a struts+spring+jooq integration sample webapp.
I have a employee table in db and a jsp where in I can search for an employee in the db and show details. Problem is on clicking search nothing happens. There is no error in logs as well my print statements in searchEmp action don't show anything on console. Can you please tell me why the struts action method is not being invoked?Here are the details
index.jsp file
<%# page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%# taglib uri="/struts-tags" prefix="s"%>
<!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=ISO-8859-1">
<title>Struts 2 Spring integration </title>
</head>
<body>
<s:form>
<s:textfield label="Enter Id" name="eid" value="Enter employee name here.."></s:textfield>
<s:textfield label="Enter name" name="name" value="Enter name here.."> </s:textfield>
<s:textfield label="Enter city" name="city" value="Enter city here.."> </s:textfield>
<s:submit value="Create new employee" action="saveEmpAction"/>
<s:submit value="Update Employee" action="updateEmpAction"></s:submit>
<s:submit value="Delete Employee" action="deleteEmpAction"></s:submit>
<s:submit value="Search Employee" action="searchEmpAction"></s:submit>
</s:form>
<s:property value="message"/>
<hr>
<table border="1">
<s:iterator value="emps">
<tr>
<td><s:property value="eid"/></td>
<td><s:property value="name"/></td>
<td><s:property value="city"/></td>
</tr>
</s:iterator>
</table>
</body>
</html>
Here is my EmpAction.java class
package com.rewardsapp.action;
import java.util.ArrayList;
import java.util.List;
import javax.servlet.ServletContext;
import org.apache.struts2.ServletActionContext;
import org.springframework.web.context.WebApplicationContext;
import org.springframework.web.context.support.WebApplicationContextUtils;
import test.generated.tables.pojos.Emp;
import com.opensymphony.xwork2.ActionSupport;
import com.opensymphony.xwork2.ModelDriven;
import com.opensymphony.xwork2.Preparable;
import com.rewardsapp.dao.EmpDao;
public class EmpAction extends ActionSupport implements ModelDriven<Emp>, Preparable{
/**
*
*/
private static final long serialVersionUID = -2435427486571261741L;
Emp emp;
EmpDao empdao;
String message;
List<Emp> empList;
#Override
public void prepare() throws Exception {
emp = new Emp();
message = "";
empList = new ArrayList<Emp>();
ServletContext ctx = ServletActionContext.getServletContext();
WebApplicationContext webappCtx = WebApplicationContextUtils.getWebApplicationContext(ctx);
empdao = (EmpDao)webappCtx.getBean("empDao");
}
#Override
public Emp getModel() {
return emp;
}
public String searchEmpAction() throws Exception {
System.out.println("In search emp action");
System.out.println("Search employee : " + emp.getName());
Emp emp2 = empdao.getEmployee(emp.getId());
empList.add(emp2);
System.out.println("In search emp action");
System.out.println("Searched employee : " + emp2.getName());
return SUCCESS;
}
public Emp getEmp() {
return emp;
}
public void setEmp(Emp emp) {
this.emp = emp;
}
public EmpDao getEmpdao() {
return empdao;
}
public void setEmpdao(EmpDao empdao) {
this.empdao = empdao;
}
public String getMessage() {
return message;
}
public void setMessage(String message) {
this.message = message;
}
public List<Emp> getEmpList() {
return empList;
}
public void setEmpList(List<Emp> empList) {
this.empList = empList;
}
}
Here is my dao class:
package com.rewardsapp.dao;
import org.jooq.DSLContext;
import org.springframework.dao.DataAccessException;
import com.rewardsapp.enums.ObjectType;
import com.rewardsapp.utils.NullObjectRegistry;
import static test.generated.tables.Emp.EMP;
import test.generated.tables.pojos.Emp;
import test.generated.tables.records.EmpRecord;
public class EmpDao {
/** The Constant NULL_CUSTOMER. */
private static final Emp NULL_EMP = (Emp) NullObjectRegistry.getNullObject(ObjectType.EMP);
DSLContext dslContext;
public DSLContext getDslContext() {
return dslContext;
}
public void setDslContext(DSLContext dslContext) {
this.dslContext = dslContext;
}
public Emp getEmployee(int empId) throws Exception {
try {
EmpRecord empRecord = (EmpRecord) dslContext.select().from(EMP)
.where((EMP.ID.equal(empId))).fetchAny();
return (empRecord != null) ? empRecord.into(Emp.class) : NULL_EMP;
} catch (DataAccessException e) {
e.printStackTrace();
/*throw new SystemException("Exception during getCustomerByCustomerType: " + customerType, e,
SystemErrorCode.SQL_EXCEPTION_ERROR)*/;
throw new Exception();
}
}
}
Struts.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.3//EN"
"http://struts.apache.org/dtds/struts-2.3.dtd">
<struts>
<package name="default" extends="struts-default" namespace="/">
<action name="searchEmpAction" class="com.rewardsapp.action.EmpAction" method="searchEmpAction">
<result name="success">index.jsp</result>
<result name="input">index.jsp</result>
<result name="error">index.jsp</result>
</action>
</package>
</struts>
HI hava a problem while creating a CRUD operation in browser
`HTTP Status 500 -
--------------------------------------------------------------------------------
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: org.apache.jasper.JasperException: org.springframework.beans.NotReadablePropertyException: Invalid property 'standard' of bean class [com.raistudies.domain.User]: Bean property 'standard' is not readable or has an invalid getter method: Does the return type of the getter match the parameter type of the setter?
org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:548)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:456)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:389)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:333)
javax.servlet.http.HttpServlet.service(HttpServlet.java:722)
here I have all part of the spring mvc + mybatis operations file
//controller
package com.raistudies.controllers;
import java.util.List;
import java.util.UUID;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.ModelMap;
import org.springframework.validation.BindingResult;
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;
import com.raistudies.domain.User;
import com.raistudies.persistence.UserService;
import com.raistudies.validator.RegistrationValidator;
#Controller
#RequestMapping(value="/registration")
public class RegistrationController {
private RegistrationValidator validator = null;
private UserService userService = null;
#Autowired
public void setUserService(UserService userService) {
this.userService = userService;
}
public RegistrationValidator getValidator() {
return validator;
}
#Autowired
public void setValidator(RegistrationValidator validator) {
this.validator = validator;
}
#RequestMapping(method=RequestMethod.GET)
public String showForm(ModelMap model){
List<User> users = userService.getAllUser();
model.addAttribute("users", users);
User user = new User();
user.setId(UUID.randomUUID().toString());
model.addAttribute("user", user);
return "registration";
}
#RequestMapping(value="/add", method=RequestMethod.POST)
public ModelAndView add(#ModelAttribute(value="user") User user,BindingResult result){
validator.validate(user, result);
ModelAndView mv = new ModelAndView("registration");
if(!result.hasErrors()){
userService.saveUser(user);
user = new User();
user.setId(UUID.randomUUID().toString());
mv.addObject("user", user);
}
mv.addObject("users", userService.getAllUser());
return mv;
}
#RequestMapping(value="/update", method=RequestMethod.POST)
public ModelAndView update(#ModelAttribute(value="user") User user,BindingResult result){
validator.validate(user, result);
ModelAndView mv = new ModelAndView("registration");
if(!result.hasErrors()){
userService.updateUser(user);
user = new User();
user.setId(UUID.randomUUID().toString());
mv.addObject("user", user);
}
mv.addObject("users", userService.getAllUser());
return mv;
}
#RequestMapping(value="/delete", method=RequestMethod.POST)
public ModelAndView delete(#ModelAttribute(value="user") User user,BindingResult result){
validator.validate(user, result);
ModelAndView mv = new ModelAndView("registration");
if(!result.hasErrors()){
userService.deleteUser(user.getId());
user = new User();
user.setId(UUID.randomUUID().toString());
mv.addObject("user", user);
}
mv.addObject("users", userService.getAllUser());
return mv;
}
}
persistance is
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
"http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="com.raistudies.persistence.UserService">
<resultMap id="result" type="user">
<result property="id" column="id"/>
<result property="name" column="name"/>
<result property="studentClass" column="class"/>
<result property="roll" column="roll"/>
<!-- <result property="sex" column="sex"/>-->
</resultMap>
<select id="getAllUser" resultMap="result">
SELECT id,name,class,roll
FROM user;
</select>
<insert id="saveUser" parameterType="user">
INSERT INTO user (id,name,standard,age,sex)
VALUE (#{id},#{name},#{standard},#{age})
</insert>
<update id="updateUser" parameterType="user">
UPDATE user
SET
name = #{name},
standard = #{standard},
age = #{age},
sex = #{sex}
where id = #{id}
</update>
<delete id="deleteUser" parameterType="int">
DELETE FROM user
WHERE id = #{id}
</delete>
</mapper>
I have to do create delete update add operation but it is going to be error just like above while running my project......please help me
after changing the jsp code as per the variable that the java bean class(class containing geter or setter method) has.Then it will solve the problem.
*especially what I mean is you have to change the path in jsp <tr><td>Class : </td><td><form:input path="standard" /></td></tr>*as per the bean variable
previous jsp file (at error time)
<!DOCTYPE HTML PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%# page session="true" %>
<%# taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Hello World with Spring 3 MVC</title>
<meta http-equiv="Content-Type" content="text/html; charset=windows-1251">
<script type="text/javascript" src='<c:url value="/resources/common.js"/>'></script>
<script type="text/javascript" src='<c:url value="/resources/registration.js"/>'></script>
<script type="text/javascript">
var projectUrl = '<c:url value="/"/>';
if(projectUrl.indexOf(";", 0) != -1){
projectUrl = projectUrl.substring(0, projectUrl.indexOf(";", 0));
}
</script>
</head>
<body>
<fieldset>
<legend>Registration Form</legend>
<center>
<form:form commandName="user" action="/SpringMVCMyBatisCRUDExample/app/registration/add" name="userForm">
<form:hidden path="id"/>
<table>
<tr><td colspan="2" align="left"><form:errors path="*" cssStyle="color : red;"/></td></tr>
<tr><td>Name : </td><td><form:input path="name" /></td></tr>
<tr><td>Class : </td><td><form:input path="standard" /></td></tr>
<tr><td>RollNo: </td><td><form:input path="roll" /></td></tr>
<tr><td colspan="2"><input type="submit" value="Save Changes"/>
<input type="reset" name="newUser" value="New User" onclick="setAddForm();" disabled="disabled"/>
<input type="submit" name="deleteUser" value="Delete User" onclick="setDeleteForm();" disabled="disabled"/></td></tr>
</table>
</form:form>
</center>
</fieldset>
<c:if test="${!empty users}">
<br />
<center>
<table width="90%">
<tr style="background-color: gray;">
<th>Name</th>
<th>Class</th>
<th>RollNo</th>
</tr>
<c:forEach items="${users}" var="user">
<tr style="background-color: silver;" id="${user.id}" onclick="setUpdateForm('${user.id}');">
<td><c:out value="${user.name}"/></td>
<td><c:out value="${user.studentClass}"/></td>
<td><c:out value="${user.roll}"/></td>
</tr>
</c:forEach>
</table>
</center>
<br />
</c:if>
</body>
my java bean class
package com.raistudies.domain;
import java.io.Serializable;
public class User implements Serializable{
private static final long serialVersionUID = 3647233284813657927L;
private String id;
private String name = null;
private String studentClass = null;
private String roll;
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getStudentClass() {
return studentClass;
}
public void setStudentClass(String studentClass) {
this.studentClass = studentClass;
}
public String getRoll() {
return roll;
}
public void setRoll(String roll) {
this.roll = roll;
}
#Override
public String toString() {
return "User [name=" + name + ", class="+ studentClass+ ", roll=" + roll + "]";
}
}
previously I had standard variable in java bean class(model class) but I have to change it to studentClass so not to be error we must change the jsp path that is
<tr><td>Class : </td><td><form:input path="standard" /></td></tr>.......
to
<tr><td>Class : </td><td><form:input path="studentClass" /></td></tr>
I'm new to Spring MVC and I have an error with a form validation and I don't know why.
This is the model:
import java.io.Serializable;
import java.util.Date;
import javax.persistence.Temporal;
import javax.persistence.TemporalType;
import javax.validation.constraints.Size;
import org.springframework.stereotype.Component;
#Component
public class Search implements Serializable {
#Size(max = 20)
private String userInput;
#Size(max = 10)
private String ascending;
#Size(max = 10)
private String descending;
#Temporal(TemporalType.DATE)
private Date fromDate;
#Temporal(TemporalType.DATE)
private Date toDate;
#Size(max=100)
private String genres;
public String getGenres() {
return genres;
}
public void setGenres(String genres) {
this.genres = genres;
}
public String getUserInput() {
return userInput;
}
public void setUserInput(String userInput) {
this.userInput = userInput;
}
public Date getFromDate() {
return fromDate;
}
public void setFromDate(Date fromDate) {
this.fromDate = fromDate;
}
public Date getToDate() {
return toDate;
}
public void setToDate(Date toDate) {
this.toDate = toDate;
}
}
Here is the form:
<%# taglib prefix="sf" uri="http://www.springframework.org/tags/form"%>
<sf:form action="/newSearch" method="post" modelAttribute="search">
<sf:input path="userInput" type="text" class="input_style" id="userInput" />
<button class="search_button"><img class="search_icon" src="resources/img/search/search_icon.png" /></button>
<sf:select id="genres" path="genres" multiple="multiple">
</sf:select>
<sf:input id="fromDate" path="fromDate" />
<sf:input id="toDate" path="toDate" type="text" />
<sf:input id="ascending" path="ascending" type="radio" checked="checked" />
<sf:input id="descending" path="descending" type="radio" />
</sf:form>
and here is the Controller:
#RequestMapping(value = "/newSearch", method = RequestMethod.POST)
public String getSearch(#Valid Search search, BindingResult result, Model m) {
if(result.hasErrors()) {
return "home";
}
System.out.println("----------------Search--------------------");
System.out.println(search.getGenres());
System.out.println(search.getUserInput());
return "search";
}
The error is:
java.lang.IllegalStateException: Neither BindingResult nor plain target object for bean name 'search' available as request attribute
Add #ModelAttribute("search") before #Valid making the method's signature look like
public String getSearch(#ModelAttribute("search") #Valid Search search, BindingResult result, Model m)
Also try
<sf:form action="/newSearch" method="post" commandName="search">
instead of
<sf:form action="/newSearch" method="post" modelAttribute="search">
I've got a little problem here with my application. I'd like to check if fields password and confirm password match together, so I tried to do it like in the first answer for this question: Cross field validation with Hibernate Validator (JSR 303)
The problem is that it actually doesn't work and I HAVE NO IDEA WHY. Please, help me! This is my first post here, so please don't be too harsh for me.
Here's my Annotation :
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints;
import java.lang.annotation.*;
import javax.validation.Constraint;
import javax.validation.Payload;
/**
*
* #author lukasz
*/
#Documented
#Constraint(validatedBy = FieldMatchValidator.class)
#Target({ElementType.TYPE})
#Retention(RetentionPolicy.RUNTIME)
public #interface FieldMatch {
String message() default "{pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints.FieldMatch}";
Class<?>[] groups() default {};
Class<? extends Payload>[] payload() default {};
String first();
String second();
}
Here's my ValidatorClass:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints;
import java.lang.reflect.InvocationTargetException;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import org.apache.commons.beanutils.BeanUtils;
/**
*
* #author lukasz
*/
public class FieldMatchValidator implements ConstraintValidator<FieldMatch, Object> {
private String firstFieldName;
private String secondFieldName;
#Override
public void initialize(FieldMatch constraintAnnotation) {
firstFieldName = constraintAnnotation.first();
secondFieldName = constraintAnnotation.second();
}
#Override
public boolean isValid(Object value, ConstraintValidatorContext context) {
try {
String sFirstField = BeanUtils.getProperty(value, firstFieldName);
String sSecondField = BeanUtils.getProperty(value, secondFieldName);
if(sFirstField.equals(sSecondField)){
return true;
}
} catch (IllegalAccessException ex) {
Logger.getLogger(FieldMatchValidator.class.getName()).log(Level.SEVERE, null, ex);
} catch (InvocationTargetException ex) {
Logger.getLogger(FieldMatchValidator.class.getName()).log(Level.SEVERE, null, ex);
} catch (NoSuchMethodException ex) {
Logger.getLogger(FieldMatchValidator.class.getName()).log(Level.SEVERE, null, ex);
}
return false;
}
}
And here's my bean:
/*
* To change this template, choose Tools | Templates
* and open the template in the editor.
*/
package pl.lodz.p.zsk.ssbd2012.ssbd12.Beans;
import javax.ejb.EJB;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.RequestScoped;
import javax.validation.constraints.Pattern;
import javax.validation.constraints.Size;
import pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints.CheckEmail;
import pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints.FieldMatch;
import pl.lodz.p.zsk.ssbd2012.ssbd12.entities.Account;
import pl.lodz.p.zsk.ssbd2012.ssbd12.mok.endpoint.MokEndpointLocal;
/**
*
* #author krzys
* #author lukasz
*/
#ManagedBean
#RequestScoped
#FieldMatch(first = "password", second = "password2", message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.ValidationConstraints.FieldMatch}")
public class RegisterBean {
/**
* Creates a new instance of RegisterBean
*/
#EJB
MokEndpointLocal endpoint;
#Size(min = 3, max = 16, message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.login.size}")
#Pattern(regexp = "[a-zA-Z0-9]+", message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.login.invalid}")
private String login;
#Size(min = 6, max = 64, message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.password.size}")
#Pattern(regexp = "[a-zA-Z0-9]+", message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.password.invalid}")
private String password;
private String password2;
#Pattern(regexp = "[A-Ż][a-ż]+", message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.name.invalid}")
private String name;
#Pattern(regexp = "[A-Ż][a-ż]+", message = "{pl.lodz.p.zsk.ssbd2012.ssbd12.Beans.RegisterBean.surname.invalid}")
private String surname;
#CheckEmail
private String email = "";
/**
* #return the login
*/
public String getLogin() {
return login;
}
/**
* #param login the login to set
*/
public void setLogin(String login) {
this.login = login;
}
/**
* #return the password
*/
public String getPassword() {
return password;
}
/**
* #param password the password to set
*/
public void setPassword(String password) {
this.password = password;
}
public String getPassword2() {
return password2;
}
public void setPassword2(String password2) {
this.password2 = password2;
}
/**
* #return the name
*/
public String getName() {
return name;
}
/**
* #param name the name to set
*/
public void setName(String name) {
this.name = name;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String register ()
{
// Account account = new Account();
// account.setLogin(login);
// account.setHaslo(password);
// account.setImie(name);
// account.setNazwisko(surname);
// account.setEmail(email);
// endpoint.register(account);
return "registerSucces";
}
/**
* #return the surname
*/
public String getSurname() {
return surname;
}
/**
* #param surname the surname to set
*/
public void setSurname(String surname) {
this.surname = surname;
}
}
And here's JSF:
<?xml version='1.0' encoding='UTF-8' ?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core">
<h:head>
<h:outputStylesheet name="menu.css" library="css" />
<title>#{messages.registration}</title>
</h:head>
<h:body>
<ui:composition template="./../resources/mainTemplate.xhtml">
<h4>#{messages.registration}</h4>
<ui:define name="content">
<h4>#{messages.registration}</h4>
<h1>#{messages.registrationInfo1}</h1>
#{messages.registrationInfo2}
<h:form>
<h2>
<h:outputText value="#{messages.loginForm}"/>
<h:inputText id="login" value="#{registerBean.login}" />
</h2>
<h2>
<h:outputText value="#{messages.passwordForm}" />
<h:inputSecret id="password" value="#{registerBean.password}" />
</h2>
<h2>
<h:outputText value="#{messages.repeatPasswordForm}"/>
<h:inputSecret id="confirm" value="#{registerBean.password2}" />
</h2>
<h2>
<h:outputText value="#{messages.nameForm}"/>
<h:inputText id="name" value="#{registerBean.name}" />
</h2>
<h2>
<h:outputText value="#{messages.surnameForm}"/>
<h:inputText id="surname" value="#{registerBean.surname}" />
</h2>
<h2>
<h:outputText value="#{messages.emailForm}"/>
<h:inputText id="email" value="#{registerBean.email}" />
</h2>
<h2>
<h:commandButton value="#{messages.send}" action="#{registerBean.register()}" />
</h2>
</h:form>
</ui:define>
</ui:composition>
</h:body>
</html>
Class-level constraints are not triggered automatically by JSF during validation phase. You can use only field-level constraints (moreover not all fields are valuated by JSF but only those that are in your facelet).
If you want to use bean validation you can perform validation manually:
Validator validator = Validation.buildDefaultValidatorFactory().getValidator();
Set<ConstraintViolation<Test>> violations = validator.validate( this, Default.class );
You can do it in registration method of your bean or after update model phase (but I've never tried it).
Anyway you can use JSF validation instead of bean validation or check the passwords directly in the registration method:
public String registration() {
...
if ( !password.equals(password2) ) {
FacesContext.getCurrentInstance().addMessage( null, new FacesMessage( "Passwords do not match" ) );
return null;
}
...
}