使用idea创建springMVC项目helloworld成功运行，请求之后页面404，idea的控制台没有报错
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_4_0.xsd"
version="4.0">
<servlet>
<servlet-name>springDispatcherServlet</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springDispatcherServlet</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>
springmvc.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:aop="http://www.springframework.org/schema/aop"
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
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd">
<!--开启注解扫描-->
<context:component-scan base-package="com.nwl"></context:component-scan>
<mvc:annotation-driven></mvc:annotation-driven>
</beans>
index.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>$Title$</title>
</head>
<body>
<a href="/hello">helloworld</a>
$END$
</body>
</html>
success.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
<title>Title</title>
</head>
<body>
成功！
</body>
</html>
First.java
@Controller
public class First {
@RequestMapping("/hello")
public String hello(){
System.out.println("收到请求");
return "/WEB-INF/jsp/success.jsp";
}
}
解决方法
如果代码没有问题的话，有两处需要配置
打开file-Project Structure-Artifacts点击当前项目，然后点击WEB-INF，在WEB-INF目录下添加一个lib目录，点击lib目录，点击上边的加号，再点击Library Files,选中所有要用的jar包，点击OK，最后点击Apply然后OK就行了
然后打开tomcat的Edits Configurations，点击当前用的tomcat，点击Deployment，把Application Context位置的内容改成"/"
这两个地方改完之后就不会报404了
浙公网安备 33010602011771号