简体   繁体   中英

404 error in simple Spring project

I am just started Spring MVC framerwork . I am trying do helloworld example but every tutorials i checked out , all have some problem that I do not know thats mean ! for example this project has 404 error when i click on sayhello : I use eclipse Kepler and tomcat 7.0 and Spring 4.0 ; all Spring .jar files added in build path . controller :

    package net.spring3.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.portlet.ModelAndView;

@Controller
public class HelloWorldController {

    @RequestMapping(value = "/hello")
    public ModelAndView helloWorld() {

        String message = "Hello World";
        return new ModelAndView("hello", "message", message);
    }
}

spring-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" 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="net.spring3.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/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</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_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>Spring3MVC</display-name>
    <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>

    <servlet>
        <servlet-name>spring</servlet-name>
        <servlet-class>
            org.springframework.web.servlet.DispatcherServlet
        </servlet-class>
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>spring</servlet-name>
        <url-pattern>*.html</url-pattern>
    </servlet-mapping>
</web-app>

WEB-INF/jsp/hello.jsp:

    <html>
<head>
<title>Spring</title>
</head>
<body>${message}
</body>
</html>

index.jsp :

    <html>
<head>
<title></title>
</head>
<body>
    <a href="hello.html">Say Hello</a>
</body>
</html>

Change

@RequestMapping(value = "/hello")

to

@RequestMapping(value = "/hello.html")

The default DefaultAnnotationHandlerMapping that is registered by the DispatcherServlet does not handle path extension mappings.

You could, alternatively, specify

<mvc:annotation-driven />

in your XML configuration, with the appropriate namespace. This will register a RequestMappingHandlerMapping which maps your handlers to match extension mappings like *.html .

This tutorial seems bugged.

I had same problem before, if your server lead you to correct path WEB-INF/jsp/hello.jsp but that page is 404, it must tomcat blocked you page.

So what I did is move that page to /webapp/WebContent/jsp/hello.jsp and change your path for internalResuorceViewResolver to /WebContent/jsp

That should do the trick.

The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.

 
粤ICP备18138465号  © 2020-2024 STACKOOM.COM