Error 404 on SpringMVC using Maven
Question
I keep getting this Error 404 and I've done/looked at almost all the solutions on StackOverflow that are relevant and still haven't fixed my problem. Why am I having this error?
When I do http://localhost:8080 it gives me my index.jsp page, but when I do http://localhost:8080/index.jsp of http://localhost:8080/WebApp/index.jsp it gives me 404 error.
web.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app 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-app_3_1.xsd" version="3.1"> <context-param> <param-name>contextConfigLocation</param-name> <param-value>/WEB-INF/dispatcher-servlet.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>/</url-pattern> </servlet-mapping> </web-app>
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" 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.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd"> <mvc:annotation-driven /> <context:component-scan base-package="test.app" /> <bean class = "org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value = "/WEB-INF/views/"/> <property name="suffix" value=".jsp" /> </bean> </beans>
applicationContext.xml
index.jsp
<%-- Created by IntelliJ IDEA. User: reaganyuan Date: 12/31/17 Time: 12:42 PM To change this template use File | Settings | File Templates. --%> <%@ page contentType="text/html;charset=UTF-8" language="java" %> <html> <head> <title>$Title$</title> </head> <body> <p>HELLO WORLD</p> </body> </html>
TestController.java
package test.app; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; @Controller public class TestController { @RequestMapping(value="/") public String test() { return "index"; } }
pom.xml
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>test</groupId> <artifactId>app</artifactId> <version>1.0-SNAPSHOT</version> <dependencies> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>4.3.13.RELEASE</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>4.3.13.RELEASE</version> </dependency> </dependencies> </project>
My Project structure
edit: I changed index() into test() in the controller, but that didn't do anything.
2 answers
solution1
0 2018-01-01 07:31:07
In Web.xml try changing url-pattern to /* as shown below
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/dispatcher-servlet.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>/*</url-pattern>
</servlet-mapping>
solution2
0 2018-01-01 07:47:06
When you hit the url http://localhost:8080/ you are hitting the TestController which has a mapping for "/". It is returning a string "index" which will be resolved by the InternalResourceViewResolver.class into index.jsp.
You do not have any mapping to /index.jsp. In a servlet container you can't access the files like that directly. If you still want you can change your controller like this.
@Controller
public class TestController {
@RequestMapping(value={"/","index.jsp"})
public String test()
{
return "index";
}
}
But my advice is not to do like that. You should keep only the name without extension, like @RequestMapping(value={"/","index"})
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