运行过程大概就是这样的，如下图所示：
点了提交之后按理说应该返回到index.jsp页面可确实下面这种情况：
最后一行的报错是：06-Dec-2024 21:30:58.390 璀﹀憡 [http-nio-8080-exec-6] org.springframework.web.servlet.DispatcherServlet.noHandlerFound No mapping found for HTTP request with URI [/untitled30_war_exploded/$%7BpageContext.request.contextPath%7D/person1] in DispatcherServlet with name 'dispatcherServlet'
目录如下：
**真的不知道为什么，我感觉我也没配错啊，恳请各位帮我看看，非常感谢！
**
以下是我的配置
pom.xml:
<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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>org.example</groupId>
<artifactId>untitled30</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>untitled30 Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<!--Spring核心类-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>5.2.8.RELEASE</version>
</dependency>
<!--Spring MVC-->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.11.RELEASE</version>
</dependency>
<!--Servlet-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!--JSP-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>jsp-api</artifactId>
<version>2.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>
<build>
<finalName>untitled30</finalName>
</build>
</project>
web.xml:
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>dispatcherServlet</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>
</servlet>
<servlet-mapping>
<servlet-name>dispatcherServlet</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: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.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">
<!--自动扫描-->
<context:component-scan base-package="com.controller" />
<!--视图解析器-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/"></property>
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
Person:
package com.pojo;
public class Person {
private int id;
private String name;
private int age;
public Person(int id, String name, int age) {
this.id = id;
this.name = name;
this.age = age;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
@Override
public String toString() {
return "Person{" +
"id=" + id +
", name=" + name +
", age=" + age +
'}';
}
}
PersonController:
package com.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.GetMapping;
@Controller
public class PersonController {
@GetMapping(value="/personController")
public String showPerson(){
return "person1";
}
}
PersonInfor:
package com.controller;
import com.pojo.Person;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
@Controller
public class PersonInfor {
@RequestMapping(value = "/person1",method = RequestMethod.POST)
public String personInfor(int id,@RequestParam(value="username") String name,int age){
Person person=new Person(id,name,age);
System.out.println(person);
return "index";
}
}
person1.jsp
<%--
Created by IntelliJ IDEA.
User: ASUS
Date: 2024/12/6
Time: 19:55
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>
<form action="${pageContext.request.contextPath}/person1" method="post">
id:<input type="text" name="id"/></br>
姓名：<input type="text" name="username"/></br>
年龄：<input type="text" name="age"/></br>
<input type="submit" value="提交"/>
</form>
</body>
</html>
index.jsp:
<html>
<body>
<h2>Hello World!</h2>
</body>
</html>
