SpringMVC篇：开启一个SpringMVC程序_以spring mvc方式打开项目-优快云博客

本文链接：https://blog.youkuaiyun.com/m0_59058417/article/details/119139530

1、加入jar包

2、配置web.xml文件。然后需在WEB-INF下创建一个Springmvc的配置文件，文件名为<servlet-name>-servlet形式。如：dispatcherServlet-servlet.xml。

<servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

3、在SpringMVC配置文件下，配置自动扫描的包。配置视图解析器。

<?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"
       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">

    <context:component-scan base-package="com.caiyingbin.controller"></context:component-scan>

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

</beans>

4、创建前端处理器（@Controller）。和映射请求（@RequestMapping）

@Controller
public class MyController {
    @RequestMapping(value = "/book")
    public String getPut(){
        System.out.println("你成功了吧");
        return "success";
    }
}

5、若初始页面访问"book"，可经前端处理器请求转发到/WEB-INF/pages/success.jsp页面。（根据视图解析器的配置）。

如：index.jsp

<form action="book" method="post">
    <input type="submit" value="按钮" >
  </form>

success.jsp

<%--
  Created by IntelliJ IDEA.
  User: Hasee
  Date: 2021/7/27
  Time: 11:11
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java"  isErrorPage="true" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
你币成功了
</body>
</html>