CODEWITHSUNDEEP
springspring-mvc
mnatan.brito
mnatan.brito

Reputation: 883

Spring MVC example not working

I'm in trouble and would like your help. I'm a beginner in Spring MVC (and Spring at all). I have followed the http://www.mkyong.com/spring3/spring-3-mvc-hello-world-example/ but it isn't working on. I added a welcome file (index.jsp). When i enter (http://localhost:8080/SpringMVC) all right. But when i add the controller pattern (http://localhost:8080/SpringMVC/welcome), it doesn't work (HTTP Status 404). Here my configs:

web.xml

<web-app id="WebApp_ID" version="2.4" xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee 
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
    <display-name>Spring Web MVC Application</display-name>
    <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>/</url-pattern>
    </servlet-mapping>
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/mvc-dispatcher-servlet.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    <welcome-file-list>
        <welcome-file>/index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

mvc-dispatcher-servlet.xml

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context-3.0.xsd">
    <context:component-scan base-package="com.mkyong.common.controller" />
    <bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix">
            <value>/WEB-INF/pages/</value>
        </property>
        <property name="suffix">
            <value>.jsp</value>
        </property>
    </bean>
</beans>

and my folder structure is:

-> src
   -> main
      -> java
         -> com
            -> mkyong
               -> common
                  -> controller
                     -> HelloController.java
      -> resources
      -> webapp
         -> index.jsp
         -> WEB-INF
            -> mvc-dispatcher-servlet.xml
            -> web.xml
            -> pages
               -> hello.jsp

Someone can help me?

Upvotes: 0

Views: 5899

Answers (4)

Omkar Ayachit
Omkar Ayachit

Reputation: 1

Include this library on your view to enable ${}

<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

This will solve your problem.

Upvotes: 0

user1171171
user1171171

Reputation: 1

You must have a Controller mapped to "/".

@Controller
@RequestMapping("/")
public class StartController {

  @RequestMapping(method = RequestMethod.GET)
  public String printWelcome(ModelMap model) {

    model.addAttribute("message", "Spring 3 MVC Hello World");
    return "hello";

  }

}

Upvotes: 0

MStodd
MStodd

Reputation: 4746

You have your servlet mapped to '/', and the controller you want to hit is accepting requests for '/welcome'

The request you need to make should be (http://localhost:8080/welcome). I don't know why he has that extra 'SpringMVC' in his example.

Also, add <mvc:annotation-driven/> to your mvc-dispatcher-servlet.xml to make sure it's using annotations on your controller(s). And add the mvc XML namespace also. My namespaces look like this:

<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:context="http://www.springframework.org/schema/context"
xmlns:security="http://www.springframework.org/schema/security"
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-3.1.xsd
    http://www.springframework.org/schema/context
    http://www.springframework.org/schema/context/spring-context-3.1.xsd
    http://www.springframework.org/schema/security
    http://www.springframework.org/schema/security/spring-security-3.1.xsd">

I would suggest getting rid of that welcome file until you have your controller working correctly to keep things simple

Upvotes: 0

Chander Shivdasani
Chander Shivdasani

Reputation: 10131

404 means that the requested resource cannot be found. Make sure your controller is annotated with: 

@Controller and @RequestMapping("/welcome")

From the link:

@Controller
@RequestMapping("/welcome")
public class HelloController {

    @RequestMapping(method = RequestMethod.GET)
    public String printWelcome(ModelMap model) {

        model.addAttribute("message", "Spring 3 MVC Hello World");
        return "hello";

    }

}

Upvotes: 1

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