I am trying to implement dynamic check box list in Spring MVC with annotations. So, I tried this one out:
In home.jsp:
<c:forEach items="${categories}" var="cat">
<tr>
<td><form:checkbox path="catrgo" value="${category}"
label="${cat.categoryId}" /></td>
<td><c:out value="${cat.category}" /></td>
</tr>
</c:forEach>
And In HomeController:
#Controller
#RequestMapping(value = "/home")
public class HomeController {
#RequestMapping(method = RequestMethod.GET)
public String showForm() {
FeedDomain feedDomain = new FeedDomain();
System.out.println("Called");
CategoryService categoryService = new CategoryService();
try {
List<CategoryDomain> categoryDomainList = new ArrayList<CategoryDomain>();
CategoryDomain categoryDomain = new CategoryDomain();
categoryDomain.setCategory("aaa");
categoryDomain.setCategoryId(11111);
System.out.println("Size is " + categoryDomainList.size());
} catch (Exception exception) {
}
return "home";
}
Now I am going to home.jsp from index.jsp using tags but the problem is that showForm method is not getting called. What can be the reason?
I am posting below the complete flow:
Here is welcome.jsp from where I am calling home.jsp
<body>
<a href="home.jsp" class="btn btn-success btn-large disabled">Get
Us Feeds Now</a>
</body>
Now I have simplified home.jsp which is getting rendered:
<body>
<br />
<span class="badge badge-info"><h1>Chat Booster</h1></span>
<div class="leftHeader">
<h1>
<small>Subtext for header</small>
</h1>
</div>
<br></br>
<br></br>
</body>
And home page controller is :
#Controller
#RequestMapping(value = "/home")
public class HomeController {
#RequestMapping(method = RequestMethod.GET)
public String showForm() {
FeedDomain feedDomain = new FeedDomain();
// model.addAttribute("feedDomain", feedDomain);
System.out.println("Called");
CategoryService categoryService = new CategoryService();
return "home";
}
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_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>HelloWorldExampleWithSpring3MVCInEclipse</display-name>
<servlet>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet- class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/app-config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Spring MVC Dispatcher Servlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
</web-app>
app-config.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" xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:component-scan base-package="com.controller" />
<!-- Resolves view names to protected .jsp resources within the /WEB-INF/views
directory -->
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="" />
<property name="suffix" value=".jsp" />
</bean>
</beans>
My jsp pages are in webcontent folder only (not in web-inf). Now I will look for the main issue later but first point is showForm() method is not being called as sysouts are not priting anything at console. If I make home.jsp as default page of the application, then the method is called but not through the given approach. Can anyone comment on this?
Your link is incorrect, you need to call the controller action not the jsp:
<body>
<c:url var="homeLink" value="/home"/>
Get Us Feeds Now
</body>
Related
I am trying to apply spring security login config to my application but while applying the config I am not able to redirect to success page
abc_security_config.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:aop="http://www.springframework.org/schema/aop"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:util="http://www.springframework.org/schema/util"
xmlns:s="http://www.springframework.org/schema/security"
xsi:schemaLocation="http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd
http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd">
<s:global-method-security pre-post-annotations="enabled" secured-annotations="enabled" proxy-target-class="true"/>
<s:http auto-config="true" use-expressions="true">
<s:intercept-url pattern="/login" access="permitAll"></s:intercept-url>
<s:intercept-url pattern="/logout" access="permitAll"></s:intercept-url>
<s:intercept-url pattern="/accessdenied" access="permitAll"></s:intercept-url>
<s:intercept-url pattern="/**" access="hasRole('ROLE_USER')"></s:intercept-url>
<!-- <s:form-login login-page="/login" default-target-url="/list" authentication-failure-url="/accessdenied"></s:form-login> -->
<s:form-login login-page="/login" authentication-success-forward-url="/home" default-target-url="/home" authentication-failure-url="/login.html?error=true"></s:form-login>
<s:logout logout-success-url="/logout" delete-cookies="JSESSIONID"></s:logout>
<s:csrf/>
</s:http>
<s:authentication-manager alias="authenticationManager">
<!-- <s:authentication-provider user-service-ref="customPreAuthUserDetailsService" /> -->
<s:authentication-provider>
<s:user-service>
<s:user name="abc" password="test" authorities="ROLE_USER" />
</s:user-service>
</s:authentication-provider>
</s:authentication-manager>
</beans>
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_3_0.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>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>recon</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/configuration/abc-servlet.xml
/WEB-INF/configuration/abc_security_config.xml
</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>recon</servlet-name>
<url-pattern>/</url-pattern>
<!-- <url-pattern>/recon/*</url-pattern> -->
</servlet-mapping>
<!-- Spring Servlet Configuration : END -->
<!-- Spring Security : Start -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- Spring Security : End -->
<context-param>
<param-name>defaultHtmlEscape</param-name>
<param-value>true</param-value>
</context-param>
<welcome-file-list>
<welcome-file>/index.jsp</welcome-file>
</welcome-file-list>
<session-config>
<session-timeout>5</session-timeout>
</session-config>
</web-app>
UserController.java
#Controller
//#RequestMapping(value = "/user")
public class UserController {
private final Logger logger = LoggerFactory.getLogger(UserController.class);
#Resource(name = "userService")
private UserService usrService;
#RequestMapping(value = "/login", method = RequestMethod.GET)
public String login(ModelMap model) {
System.out.println("::::::::::Controller Login::::::::::");
return "login";
}
#RequestMapping(value = "/", method = RequestMethod.GET)
public String defaultPage(ModelMap map) {
return "redirect:/home";
}
#RequestMapping(value = "/home", method = RequestMethod.GET)
public String listEmployees(ModelMap map) {
return "home";
}
#RequestMapping(value = "/logout", method = RequestMethod.GET)
public String logout(ModelMap model) {
return "logout";
}
}
Login.jsp (It is configured in the tiles.xml as a tiles definition)
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# taglib uri="http://www.springframework.org/tags/form" prefix="form" %>
<%# taglib uri="http://www.springframework.org/tags" prefix="spring" %>
<html>
<body>
<h1 id="banner">Login to Security Demo test</h1>
<form name="f" action="<c:url value='j_spring_security_check'/>"
method="POST">
<table>
<tr>
<td>Username:</td>
<td><input type='text' name='j_username' /></td>
</tr>
<tr>
<td>Password:</td>
<td><input type='password' name='j_password'></td>
</tr>
<tr>
<td colspan="2"> </td>
</tr>
<tr>
<td colspan='2'><input name="submit" type="submit"> <input name="reset" type="reset"></td>
</tr>
</table>
<input type="hidden" name="${_csrf.parameterName}" value="${_csrf.token}" />
</form>
</body>
</html>
When I put correct username and pwd it redirects to same page.
One more thing that I observed is, on the Eclipse console I am getting Print statement ::::::::::Controller Login:::::::::: 6 times instead of 1.
Is there any config I am missing ?
I am new to MVC.
I am trying to build a simple hello world application using Spring MVC.
I am getting 404 error as href doesn't goes to hello.jsp. I have my hello.jsp under my WEB-INf and index,jsp is under Web apps. Below is my code for the application. Thank you all in advance
#Controller
public class HelloController {
#RequestMapping(value = "/hello",method = RequestMethod.POST)
public ModelAndView mymethod(){
return new ModelAndView("hello","msg","Hello First Spring");
}
}
/////////////////////////// spring.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"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.javatpoint"></context:component-scan>
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
///////////////////////// 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">
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/.jsp</url-pattern>
</servlet-mapping>
</web-app>
//////////////////////////// index.jsp ////////////////////////////
<html>
<body>
<h2>Hello World!</h2>
<%= java.util.Calendar.getInstance().getTime() %>
click here
</body>
</html>
//////////////////////////// hello.jsp /////////////////////////
Message is: ${msg}]
[1]: https://i.stack.imgur.com/XUJ9j.png
Change your controller to GET
#RequestMapping(value = "/hello",method = RequestMethod.GET)
public ModelAndView mymethod(){
return new ModelAndView("hello","msg","Hello First Spring");
}
Also change your web.xml
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/*</url-pattern>
</servlet-mapping>
i had created login authentication using the spring security framework..
when i include the <!-- Spring Security --> below entries in the web.xml the index page is not shown, also if i don't include the tag (<!-- Spring Security -->), the index page is shown, when i enter the userid/password and click on the submit button, i get the error
error without adding <!-- spring security --> tag
----------------------------------------------------
http://sgv09946224.gbl.ad.hedani.net:8080/SpringMVCExample/j_spring_security_check
HTTP Status 404 - The requested resource is not available.
error while adding <!-- spring security --> tag
----------------------------------------------------
http://sgv09946224.gbl.ad.hedani.net:8080/SpringMVCExample/
HTTP Status 404 - /SpringMVCExample/
type Status report
message /SpringMVCExample/
description The requested resource is not available.
web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>SpringMVCExample</display-name>
<!--
- Location of the XML file that defines the root application context.
- Applied by ContextLoaderListener.
-->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
classpath:spring/application-config.xml
</param-value>
</context-param>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--
- Servlet that dispatches request to registered handlers (Controller implementations).
-->
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-config.xml /WEB-INF/mvc-security.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- Spring Security -->
<!--
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>
org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
-->
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
<dispatcher>REQUEST</dispatcher>
<dispatcher>FORWARD</dispatcher>
</filter-mapping>
</web-app>
mvc-config.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"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd
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">
<!-- Uncomment and your base-package here:
<context:component-scan
base-package="org.springframework.samples.web"/> -->
<mvc:resources mapping="/SpringMVCExample/resources/**" location="SpringMVCExample/resources/" />
<mvc:resources mapping="/images/**" location="/WEB-INF/images/" />
<mvc:annotation-driven />
<context:component-scan base-package="com.controller" />
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- Example: a logical view name of 'showMessage' is mapped to '/WEB-INF/jsp/showMessage.jsp' -->
<property name="prefix" value="/WEB-INF/view/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
mvc-security.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"
xmlns:security="http://www.springframework.org/schema/security"
xmlns:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/security
http://www.springframework.org/schema/security/spring-security-3.1.xsd">
<security:http auto-config="true">
<security:intercept-url pattern="/index*" access="ROLE_USER" />
<security:form-login login-page="/index" default-target-url="/showMessage"
authentication-failure-url="/fail2login" />
<security:logout logout-success-url="/logout" />
</security:http>
<security:authentication-manager>
<security:authentication-provider>
<security:user-service>
<security:user name="l1" password="l1" authorities="ROLE_USER" />
</security:user-service>
</security:authentication-provider>
</security:authentication-manager>
</beans>
index.jsp
<!DOCTYPE html>
<%# page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%# taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%# taglib prefix="spring" uri="http://www.springframework.org/tags"%>
<html>
<head>
<meta charset="utf-8">
<title>Welcome</title>
</head>
<body>
<img src="/SpringMVCExample/images/SupportDashboard.jpg"/>
<c:if test="${not empty error}">
Your login attempt was not successful, try again
</c:if>
<form name='f' action="<c:url value='j_spring_security_check' />" method='POST'>
<table>
<tr>
<td>User:</td>
<td><input type='text' name='j_username' value=''>
</td>
</tr>
<tr>
<td>Password:</td>
<td><input type='password' name='j_password' />
</td>
</tr>
<tr>
<td colspan='2'><input name="submit" type="submit"
value="submit" />
</td>
</tr>
<tr>
<td colspan='2'><input name="reset" type="reset" />
</td>
</tr>
</table>
</form>
<c:url value="/showMessage.html" var="messageUrl" />
Click to enter
</body>
</html>
showmessage.jsp
<!DOCTYPE html>
<%# page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<html>
<head>
<meta charset="utf-8">
<title>Welcome</title>
</head>
<body>
<h2>${message}</h2>
</body>
</html>
spring/application-context.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"
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">
<!-- Uncomment and add your base-package here:
<context:component-scan
base-package="org.springframework.samples.service"/> -->
<!-- hibernate configuration and mappings
<import resource="mvc-security.xml"/> -->
</beans>
maincontroller.java
package com.controller;
import org.springframework.stereotype.Controller;
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.ModelAttribute;
import org.springframework.validation.*;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.ui.ModelMap;
/*
* author: Crunchify.com
*
*/
#Controller
public class MainController {
#RequestMapping("/showMessage")
public ModelAndView helloWorld() {
System.out.println("inisde showmessage method");
String message = "<br><div style='text-align:center;'>" +
"<h3>********** Welcome to LDO Support Landing page **********<h3> </div><br><br>";
return new ModelAndView("showMessage", "message", message);
}
#RequestMapping("/index")
public ModelAndView index() {
System.out.println("inisde index method");
String message = "<br><div style='text-align:center;'>" +
"<h3>********** Welcome to LDO Support Landing page **********<h3> </div><br><br>";
return new ModelAndView("showMessage", "message", message);
}
#RequestMapping(value="/fail2login", method = RequestMethod.GET)
public String loginerror(ModelMap model) {
System.out.println("inisde fail2login method");
model.addAttribute("error", "true");
return "login";
}
#RequestMapping(value="/logout", method = RequestMethod.GET)
public String logout(ModelMap model) {
System.out.println("inisde logout method");
return "login";
}
}
modified web.xml which worked for me
<?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">
<servlet>
<servlet-name>dispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/mvc-config.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-INF/mvc-*.xml,
</param-value>
</context-param>
<!-- Spring Security -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>
org.springframework.web.filter.DelegatingFilterProxy
</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
</web-app>
I am trying to learn spring mvc and facing a problem (which seems to be a common one). I have searched a lot of solutions but nothing is helping me out...
My web.xml is:
<?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_2_5.xsd"
id="WebApp_ID" version="2.5">
<display-name>Spring Hello World</display-name>
<welcome-file-list>
<welcome-file>hello.jsp</welcome-file>
</welcome-file-list>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<servlet>
<servlet-name>chatbooster</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>chatbooster</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
My chatbooster-servlet.xml is :
<?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-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd">
<context:component-scan base-package="com.controller" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.UrlBasedViewResolver">
<property name="viewClass"
value="org.springframework.web.servlet.view.JstlView" />
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>
When I try to run hello.jsp, the error is the requested resource is not available.
Hello.jsp:
<%#page contentType="text/html" pageEncoding="UTF-8"%>
<%#taglib prefix="i" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
<html>
<head>
<title>Home</title>
</head>
<body>
<h1>Hello World!</h1>
<hr/>
<form action="hi">
Name: <input type="text" name="name"> <input type="submit" value="Submit">
</form>
</body>
</html>
HelloWorldController.ava
#Controller
public class HelloWorldController {
#RequestMapping("/")
public String hello() {
return "hello";
}
#RequestMapping(value = "/hi", method = RequestMethod.GET)
public String hi(#RequestParam("name") String name, Model model) {
String message = "Hi " + name + "!";
model.addAttribute("message", message);
return "hi";
}
}
Edit1:
The problem is occurring because of tomcat server as my simple html page is also not running and it is throwing the same exception. I am using tomcat server version 7. Can anyone hint me out the cause of this exception?
Tomcat doesn't know about hello.jsp since it is inside WEB-INF.
Change
<welcome-file-list>
<welcome-file>hello.jsp</welcome-file>
</welcome-file-list>
to
<welcome-file-list>
<welcome-file>/</welcome-file>
</welcome-file-list>
It will work.
This could be a the case of Hello.jsp. The first letter of Hello.jsp is capitalized yet in your controller you are returning a lower case hello. If you change your controller to return the string "Hello" it should work.
Thank you everyone for your answers. Actually I was able to solve my issue by just changing the location of html and jsp pages from web inf folder to web content folder. I dont know why it worked but pages are being run by the server now.
In the following program, if I replace "/home.htm" with "/home.jsp" in dispatcher-servlet.xml and index.jsp, then the server is not able to find home.jsp. Are strings ending with ".jsp" invalid as bean name?
dispatcher-servlet.xml
<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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.0.xsd">
<bean id="handlerMapping" class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping"/>
<bean name="/home.htm" class="com.sample.HomePageController" />
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/jsp/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
index.jsp
<%# page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Dynamic Tiles</title>
</head>
<body>
<form action="/home.htm" method="post">
Please enter your name:
<input type="text" name="visitorName" />
<input type="submit" value="Go"/>
</form>
</body>
</html>
HomePageController.java
package com.sample;
import org.apache.log4j.Logger;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;
public class HomePageController extends AbstractController {
private static Logger logger = Logger.getLogger(HomePageController.class);
HomePageController () {
logger.info("Constructing HomePageController object");
};
public ModelAndView handleRequestInternal(HttpServletRequest request, HttpServletResponse response) throws Exception {
logger.info("Handling request for home.jsp");
return new ModelAndView("home", "visitorName", request.getParameter("visitorName"));
}
}
web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app 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"
version="2.5">
<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>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app>
There are several pieces of your application that need to be modified for it to work as intended. The first piece is the Dispatcher Servlet mapping in web.xml. In Spring the dispatcher is used to route particular requests from the client to Spring controllers within the application. What requests are routed via the dispatcher is determined by the url-pattern specified in the web.xml file for the servlet: org.springframework.web.servlet.DispatcherServlet.
In your case we want to set the url-pattern to something that does not conflict with accessing your jsp files. Since you have specified a viewResolver in your Spring configuration that prefixes generic names with /WEB-INF/jsp/ and suffixes them with .jsp, we must use a url-pattern other than .jsp.
If the .jsp url-pattern were used, a request would first be processed by the dispatcher servlet and routed to any mapped controller. If the controller attempts to use a view name to navigate to another page, for example, home, the view name is prefixed/suffixed resulting in a url: /WEB-INF/jsp/home.jsp. This constructed URL matches the .jsp url-pattern specified for the dispatcher and an attempt to route /WEB-INF/jsp/home.jsp is made, most likely failing because no mapping is found.
To remedy this problem we setup your web.xml as follows:
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">
<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>
<servlet>
<servlet-name>dispatcher</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
</web-app>
As you can see, we map the dispatcher to the url-pattern *.do. This allows the dispatcher to be used to route requests without interference with common file prefixes.
Changing the url-pattern to *.do requires us to change the action on your form. I modified your form to the following:
Index.jsp
<%# page contentType="text/html;charset=UTF-8" language="java"%>
<html>
<head>
<title>Dynamic Tiles</title>
</head>
<body>
<form action="home.do" method="post">
Please enter your name: <input type="text" name="visitorName" />
<input type="submit" value="Go" />
</form>
</body>
</html>
I also assumed that all of your .jsp files are located within the WEB-INF directory. This requires us to use a controller to access each of these .jsp files. Mappings to the controllers must be created in your Spring configuration file for the dispatcher and the appropriate controller for index.jsp must be created. Notice that I am using the .do suffix for the mappings.
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.xsd">
<bean id="handlerMapping"
class="org.springframework.web.servlet.handler.BeanNameUrlHandlerMapping" />
<bean name="/home.do" class="com.sample.HomePageController" />
<bean name="/index.do" class="com.sample.IndexPageController" />
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/jsp/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
</beans>
IndexPageController.java
package com.sample;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.AbstractController;
public class IndexPageController extends AbstractController {
#Override
protected ModelAndView handleRequestInternal(HttpServletRequest arg0,
HttpServletResponse arg1) throws Exception {
return new ModelAndView("index");
}
}
Just to be thorough, I created a home.jsp file to test the application since one was not provided. Here is my home.jsp file:
Home.jsp
<%# taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%# page session="false" %>
<html>
<head>
<title>Home</title>
</head>
<body>
<h1>
Hello, ${visitorName}
</h1>
<P> The time on the server is ${serverTime}. </P>
</body>
</html>
You decided that dispatcher would only handle .htm-ended urls but then you want it to handle .jsp-ended url. For the latter to work just change url-pattern element's content in web.xml to, for example, something like this:
<servlet-mapping>
<servlet-name>dispatcher</servlet-name>
<url-pattern>*.jsp</url-pattern>
</servlet-mapping>