spring mvc HTTP状态404-

Question

I am trying to make a spring hello world program in eclipse. Here is the code

index.jsp

<a href="hello.html">click</a>

HelloWorldController.java

package com.javatpoint;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
@Controller
public class HelloWorldController {
    @RequestMapping("/hello")
    public ModelAndView helloWorld() {
        String message = "HELLO SPRING MVC HOW R U";
        return new ModelAndView("hellopage", "message", message);
    }
}

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

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="com.javatpoint" />
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

hellopage.jsp

Message is: ${message}

When I go to http://localhost:8080/SpringMVCBasic/ , I gets the index.jsp page correctly open

but when I click on link on the page ie the url http://localhost:8080/SpringMVCBasic/hello.html , I gets the error

HTTP Status 404 -

When I use url like this http://localhost:8080/SpringMVCBasic/hello , I gets this

HTTP Status 404 - /SpringMVCBasic/hello

I have taken the code from here

Answer 1

You provided mapping for:

@RequestMapping("/hello")

but you have to do it for:

@RequestMapping("/hello.html")

Answer 2

I downloaded the eclipse project and run it on a jboss. Following jars needed to be included:

• spring-context
• spring-core
• spring-web
• spring-webmvc
• spring-aop
• spring-beans
• spring-expression

If i afterwards run the jboss with Java 8 all seems to work fine.

Answer 3

在spring-servlet.xml中启用Spring MVC @Controller编程模型，如下所示：

<mvc:annotation-driven />

Answer 4

In your index.jsp instead of writing

href="hello.html">
change to
href="./hello.html">

and

In HelloworldController.java instead of writing

@RequestMapping("/hello")

change to:-

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

Answer 5

Please add all these jar as external jar or add these jar to your lib folder

Spring Jar