I've been trying to follow various articles on setting up my first JSF application and can't get my first xhtml page to be found. I keep getting the error "This application has no explicit mapping for /error, so you are seeing this as a fallback" in the browser.
In the browser, I type http://localhost:8080/modelSimulation.xhtml to get this error, and in the console, I see:
... :GET "/modelSimulation.xhtml", parameters={}
... :No mapping for GET /modelSimulation.xhtml
My spring boot application has added the various things required to setup JSF with spring boot, but clearly I'm missing something to be able to view my modelSimulation.xhtml page. What am I missing? Thanks!
I also tried http://localhost:8080 but get corresponding no mapping error too.
src/main/webapp/WEB-INF/modelSimulation.xhtml:
<?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://xmlns.jcp.org/jsf/html"
xmlns:ui="http://xmlns.jcp.org/jsf/facelets" xmlns:p="http://primefaces.org/ui">
<ui:composition template="layout.xhtml">
<ui:define name="content">
<h:form id="mainForm">
<p:panel header="Details">
<h:panelGrid columns="1">
<p:outputLabel for="symbol" value="Symbol: " />
<p:inputText id="symbol" value="#{tradingModelSimulationController.symbol}" />
<p:outputLabel for="ranking" value="ranking: " />
<p:inputNumber id="ranking" value="#{tradingModelSimulationController.ranking}" />
<h:commandButton value="apply" action="#{tradingModelSimulationController.apply}" />
</h:panelGrid>
</p:panel>
</h:form>
</ui:define>
</ui:composition>
</html>
src/main/webapp/WEB-INF/web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" version="3.1">
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
</web-app>
I added the 2 required beans to the SpringBootApplication class:
#Bean
public ServletRegistrationBean servletRegistrationBean() {
FacesServlet servlet = new FacesServlet();
return new ServletRegistrationBean(servlet, "*.jsf");
}
#Bean
public FilterRegistrationBean rewriteFilter() {
FilterRegistrationBean rwFilter = new FilterRegistrationBean(new RewriteFilter());
rwFilter.setDispatcherTypes(EnumSet.of(DispatcherType.FORWARD, DispatcherType.REQUEST,
DispatcherType.ASYNC, DispatcherType.ERROR));
rwFilter.addUrlPatterns("/*");
return rwFilter;
}
Here's the backing bean (I don't understand the #Join...)
#Scope(value = "session")
#Component(value = "tradingModelSimulationController")
#ELBeanName(value = "tradingModelSimulationController")
#Join(path = "/modelSimulation", to = "/modelSimulation.jsf")
public class TradingModelSimulationController {
ModelSimulation modelSimulation = new ModelSimulation();
String symbol;
int ranking;
public void apply() {
System.out.println("Applied: " + modelSimulation.toString());
RequestContext.getCurrentInstance()
.execute("handleMsg('applied!');");
}
public ModelSimulation getModelSimulation() {
return modelSimulation;
}
public String getSymbol() {
return symbol;
}
public void setSymbol(String symbol) {
this.symbol = symbol;
}
public int getRanking() {
return ranking;
}
public void setRanking(int ranking) {
this.ranking = ranking;
}
}
Related
I use JSF with Spring Boot.
My problem is, that if I use the #javax.faces.bean.ManagedBean annotation I receive
javax.el.PropertyNotFoundException: Target Unreachable, identifier
[numberTest] resolved to null
I resolved the issue with put also the #Component annotation on the managed bean.
The other way was to put the Java classes in the WEB-INF.
My question is: both above-mentioned way seems to be bad and I think that they will cause trouble. What would be the solution to this problem?
I Googled a lot and tried every solution found.
(An additional fact, is that with #javax.annotation.ManagedBean the core JSP functions work (I didn't receive the error) but for example EL doesn't.)
Here is the code, in which with I receive the PropertyNotFoundException:
Configuration.java
import javax.faces.webapp.FacesServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.EnableAutoConfiguration;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.data.jpa.repository.config.EnableJpaRepositories;
import org.springframework.transaction.annotation.EnableTransactionManagement;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
#SpringBootApplication
#EnableAutoConfiguration
#EnableTransactionManagement
#EnableWebMvc
#Configuration
#EnableJpaRepositories(basePackageClasses = {})
#ComponentScan(basePackageClasses = { CLASSES_ARE_HERE })
public class Configuration {
public static void main(String[] args) {
SpringApplication.run(Configuration.class, args);
}
#Bean
public ServletRegistrationBean servletRegistrationBean() {
FacesServlet servlet = new FacesServlet();
ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(servlet, "*.xhtml");
return servletRegistrationBean;
}
}
The managed bean:
import javax.faces.bean.ApplicationScoped;
import javax.faces.bean.ManagedBean;
#ManagedBean
#ApplicationScoped
public class NumberTest {
private int theNumber=0;
public NumberTest() {
}
public void addOne() {
theNumber++;
}
public void addN(int n) {
theNumber+=n;
}
public int getTheNumber() {
return theNumber;
}
public void setTheNumber(int theNumber) {
this.theNumber = theNumber;
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" version="3.1">
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener
</listener-class>
</listener>
<!-- Time in seconds that facelets should be checked for changes since last
request. A value of -1 disables refresh checking. -->
<context-param>
<param-name>javax.faces.FACELETS_REFRESH_PERIOD</param-name>
<param-value>1</param-value>
</context-param>
<!-- Set the project stage to "Development", "UnitTest", "SystemTest", or
"Production". -->
<!-- An optional parameter that makes troubleshooting errors much easier. -->
<!-- You should remove this context parameter before deploying to production! -->
<context-param>
<param-name>javax.faces.PROJECT_STAGE</param-name>
<param-value>Development</param-value>
</context-param>
</web-app>
faces-config.xml
<?xml version="1.0" encoding="UTF-8"?>
<faces-config xmlns="http://xmlns.jcp.org/xml/ns/javaee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee
http://xmlns.jcp.org/xml/ns/javaee/web-facesconfig_2_2.xsd"
version="2.2">
<application>
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>
</faces-config>
The .xhtml
<!DOCTYPE html>
<f:view xmlns="http://www.w3.org/1999/xhtml"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:h="http://java.sun.com/jsf/html"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:c="http://java.sun.com/jsp/jstl/core"
xmlns:p="http://primefaces.org/ui" encoding="UTF-8">
<html>
<h:head>
</h:head>
<h:body>
<h1>Szám</h1>
<h3>#{numberTest.theNumber}</h3>
<h:form>
<br></br>
<h:commandButton action="#{numberTest.addOne()}" value="Add one"></h:commandButton>
</h:form>
<h:form>
<br></br>
<h:inputText binding="#{input1}" />
<h:commandButton value="Add N" action="#{numberTest.addN(input1.value)}" />
</h:form>
</h:body>
</html>
</f:view>
Here Is Managed Bean Class
package Controller;
import java.io.Serializable;
import javax.faces.bean.ManagedBean;
import javax.faces.bean.SessionScoped;
import Model.Employee;
#ManagedBean(name="employeeController")
#SessionScoped
public class Employeecontroller implements Serializable{
public String show(){
System.out.println("hello");
return "Login";
}
}
Here Is web.xml file
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>Secondproject</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>/faces/*</url-pattern>
<url-pattern>*.xhtml</url-pattern>
</servlet-mapping>
<context-param>
<description>State saving method: 'client' or 'server' (=default). See JSF Specification 2.5.2</description>
<param-name>javax.faces.STATE_SAVING_METHOD</param-name>
<param-value>client</param-value>
</context-param>
<context-param>
<param-name>javax.servlet.jsp.jstl.fmt.localizationContext</param-name>
<param-value>resources.application</param-value>
</context-param>
<listener>
<listener-class>com.sun.faces.config.ConfigureListener</listener-class>
</listener>
<welcome-file-list>
<welcome-file>homepage.xhtml</welcome-file>
</welcome-file-list>
</web-app>
Here id home.xhtml page
<!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:rich="http://richfaces.org/rich"
xmlns:ui="http://java.sun.com/jsf/facelets"
xmlns:f="http://java.sun.com/jsf/core"
xmlns:a4j="http://richfaces.org/a4j"
xmlns:h="http://java.sun.com/jsf/html">
<h:head></h:head>
<body>
<rich:panel>
<f:facet name="header">
Write your own custom rich components with built-in AJAX support
</f:facet>
<h:outputText value="Panel Body" />
<h:form>
<h:commandButton action="#{employeeController.show()}" value="Login" />
</h:form>
</rich:panel>
</body>
</html>
Here is the code for mapping xhtml page from ManagedBean.
I just want when the button is clicked then the login page will show....But when the button is clicked there is only home.xhtml page reloading...Login page is not loading....
The selection of the next view depends on the value of the action attribute of the UICommand components. If the navigation handler finds a navigation rule for this page with this outcome, the next view will be the element content. If there is no any rule like this it looks for a page with the value (or it appended with ".xhtml" file extension).
The variations:
1., Direct view definition:
<h:commandButton action="next_page_name"/>
It must be a full qualified name (page names + file name), but the xhtml could be omitted.
2., Indirect view definition:
In this case the action value is contains a bean method invocation:
<h:commandButton action="#{myBean.methodName}"/>
This method should be a function without any parameter and passes back a String value. This result will be the income for the navigation handler. It could return a page name or a navigation rule.
Now let us see your problem. If the name of your current view is id_home.xhml and you want to navigate to the login.xhtml page (both are in the x package):
1., Direct view definition. Return value "x/login" or "x/login.xhtml" from the show() method:
public String show()
{
//...
return "x/login";
}
2., Indirect view definition. Define a page navigation rule in the faces-config.xml like this:
<navigation-rule>
<from-view-id>/x/id_home.xhtml</from-view-id>
<navigation-case>
<from-outcome>go_to_login</from-outcome>
<to-view-id>x/login.xhtml</to-view-id>
</navigation-case>
</navigation-rule>
In this case myBean.methodName passes back the content of the form-outcome element:
public String show()
{
//...
return "go_to_login";
}
I am trying to call a simple spring controller on the submit action of my HTML Form.
But the spring controller is not getting called. I searched allot but did not understood the missing point. can any one please help on this.
Below is my Web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"xmlns="http://java.sun.com/xml/ns/javaee" Xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
<welcome-file-list>
<welcome-file>index.jsf</welcome-file>
</welcome-file-list>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/spring-servlet.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
<servlet>
<servlet-name>Faces Servlet</servlet-name>
<servlet-class>javax.faces.webapp.FacesServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.faces</url-pattern>
</servlet-mapping>
<servlet-mapping>
<servlet-name>Faces Servlet</servlet-name>
<url-pattern>*.jsf</url-pattern>
</servlet-mapping>
</web-app>
and my spring-servlet.xml is as below.
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:aop="http://www.springframework.org/schema/aop"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.1.xsd" xmlns:context="http://www.springframework.org/schema/context">
<mvc:annotation-driven />
<context:component-scan base-package="com.src.main"></context:component-scan>
<context:annotation-config/>
<mvc:resources location="/page/css/" mapping="/page/css/**"/>
<mvc:resources location="/page/content/" mapping="/page/content/**"/>
<!-- <mvc:resources location="/jsp/js/" mapping="/jsp/js/**"/>-->
<bean id="loginBean" class="com.src.main.LoginBean" scope="request">
<aop:scoped-proxy/>
</bean>
<bean id="userLogin" class="com.src.main.UserLogin" scope="session">
<aop:scoped-proxy/>
</bean>
<bean id="handleApplicationInitProcessor" class="com.src.main.process.HandleApplicationInitProcessor">
<property name="userLogin" ref="userLogin"></property>
<property name="loginBean" ref="loginBean"></property>
</bean>
</beans>
and my jsp is as below:
<%# page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%>
<%# taglib uri="http://java.sun.com/jsf/core" prefix="f" %>
<%# taglib uri="http://java.sun.com/jsf/html" prefix="h" %>
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<f:subview id="user_login_subview">
<html>
<head>
<base href="<%=basePath%>">
<title>My JSP 'userLogin.jsp' starting page</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
<form id="login_form" method="post" action="/processLogin">
<div id="login_div">
<h3 id="login_text" class="borderText">LOGIN</h3>
<div id="user_name_div">
<h:outputText id="loging_label" value="Username :" />
<h:inputText id="login_field" size="30" value="#{loginBean.userName}" tabindex="1" styleClass="textBox"></h:inputText>
</div>
<div id="password_div">
<h:outputText id="password_label" value="Password :" />
<h:inputText id="password_field" size="30" value="#{loginBean.password}" tabindex="2" styleClass="textBox"></h:inputText>
</div>
<div id="remember_me_div">
<h:selectBooleanCheckbox id="remember_me_checkbox" value="#{loginBean.rememberMe}" tabindex="3" styleClass="checkbox"/>
<h:outputText id="remember_me_label" value="Remember me" />
</div>
<div id="action_buttons_div">
<input type="submit" id="submit_button" value="submit" class="button"/>
<input type="reset" id="reset_button" value="reset" class="button"/>
</div>
</div>
</form>
</body>
</html>
</f:subview>
and Controller UserLogin.java is as below,
package com.src.main;
public class UserLogin {
private String userName;
private String password;
public UserLogin(){
}
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;
}
}
And my Controller name is :
package com.src.main.process;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import com.src.main.LoginBean;
import com.src.main.UserLogin;
#Controller
public class HandleApplicationInitProcessor {
private UserLogin userLogin;
private LoginBean loginBean;
public HandleApplicationInitProcessor() {
}
#RequestMapping(value = "/processLogin", method = RequestMethod.POST)
public String process(){
this.getUserLogin().setUserName(this.getLoginBean().getUserName());
this.getUserLogin().setPassword(this.getLoginBean().getPassword());
System.err.println("UserName : "+this.getUserLogin().getUserName());
System.err.println("Password : "+this.getUserLogin().getPassword());
return "Hello World !";
}
public UserLogin getUserLogin() {
return userLogin;
}
public void setUserLogin(UserLogin userLogin) {
this.userLogin = userLogin;
}
public LoginBean getLoginBean() {
return loginBean;
}
public void setLoginBean(LoginBean loginBean) {
this.loginBean = loginBean;
}
}
Initially i was trying with the JSF form submit tag but due to this issue i tried with simple HTML form submission but still the same problem.
I do not get any error on my console as well.
I think you should do below changes in your code
1.Declare DispatcherServlet in web.xml file,like below. For Ex:-
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
2.Remove below lines from your spring configuration file.
<bean id="handleApplicationInitProcessor" class="com.src.main.process.HandleApplicationInitProcessor">
<property name="userLogin" ref="userLogin"></property>
<property name="loginBean" ref="loginBean"></property>
</bean>
3.Just place #Autowired before where you are declaring it(Controller class).like below
#Autowired
private UserLogin userLogin;
#Autowired
private LoginBean loginBean;
4.Remove <context:annotation-config/> as you are using <mvc:annotation-driven />.
I am getting "can not resolve variable 'indexController'" error.
My xhtml file;
<?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:f="http://java.sun.com/jsf/core"
xmlns:p="http://primefaces.org/ui">
<h:head>
<f:facet name="first">
<meta content='text/html; charset=UTF-8' http-equiv="Content-Type"/>
<title>Title Goes Here</title>
</f:facet>
</h:head>
<h:body>
<h:form>
<p:panel header="Send">
<p:inputText value="Hi"></p:inputText>
<p:commandButton value="Send" id="btnDisplay" actionListener="#{indexController}"/>
</p:panel>
</h:form>
</h:body>
My controller;
#Controller("indexController")
#Scope("session")
public class IndexController extends MainController {
private String name;
#Override
public void init() {
//To change body of implemented methods use File | Settings | File Templates.
}
#Override
public void destroy() {
//To change body of implemented methods use File | Settings | File Templates.
}
public void sayHello(String name){
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}
My applicationContext.xhtml file;
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context.xsd">
<context:component-scan base-package="tr.source.controllers"/>
<context:annotation-config/>
</beans>
My web.xml file;
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/applicationContext.xml</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.request.RequestContextListener</listener-class>
</listener>
Your problem here is that JSF resolves beans through CDI or ManagedBeans, not Spring-managed beans.
The solution is to configure an EL name resolver for Spring beans:
Put this in your faces-config.xml
<application>
...
<el-resolver>org.springframework.web.jsf.el.SpringBeanFacesELResolver</el-resolver>
</application>
See Spring SpringBeanFacesELResolver javadocs for more info.
I'm trying to create a simple Spring 3 application and have the following files. Please tell me the reason for this error
Below is my web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Spring2</display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>0</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
Below is my index.jsp
<%# page language="java" contentType="text/html; charset=ISO-8859-1" pageEncoding="ISO-8859-1"%>
<%# taglib prefix="form" uri="http://www.springframework.org/tags/form" %>
<%# taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<!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>Insert title here</title>
</head>
<body>
Index Page<br/>
<form:form commandName="loginBean" method="POST" action="login">
<form:input path="userName" id="userName"/><br/>
<form:input path="password" id="password"/><br/>
<input type="submit" value="submit"/>
</form:form>
Go to Registration Page
</body>
</html>
Below is my dispatcher-servlet.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd">
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/" />
<property name="suffix" value=".jsp" />
</bean>
<bean name="/login" class="com.infy.controller.LoginController"/>
</beans>
This is the LoginController.java
import org.springframework.stereotype.Controller;
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
public class LoginController {
#RequestMapping(value="/login", method=RequestMethod.POST)
public ModelAndView loginAction(#ModelAttribute("loginBean")LoginBean bean){
return new ModelAndView("success", "success", "Successful Login");
}
}
And finally my LoginBean
public class LoginBean {
private String userName;
private String password;
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;
}
}
You'll have to have a ContextLoaderListener in your web.xml - It loads your configuration files.
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
You need to understand the difference between Web application context and root application context .
In the web MVC framework, each DispatcherServlet has its own WebApplicationContext, which
inherits all the beans already defined in the root WebApplicationContext. These inherited
beans defined can be overridden in the servlet-specific scope, and new scope-specific
beans can be defined local to a given servlet instance.
The dispatcher servlet's application context is a web application context which is only applicable for the Web classes . You cannot use these for your middle tier layers . These need a global app context using ContextLoaderListener .
Read the spring reference here for spring mvc .
And if you would like to use an existing context, rather than a new context which would be loaded from xml configuration by org.springframework.web.context.ContextLoaderListener,
then see -> https://stackoverflow.com/a/40694787/3004747