SpringMVC 学习(一)——SpringMVC 入门

package com.xuehj.springmvc.handler;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

/**
 * @program: SpringMVC
 * @description: TODO
 * @author: Mr.Xue
 * @create: 2018-12-24 09:36
 **/
@Controller
@RequestMapping("/view")
public class HelloWorld {
    /**
     * 1. 使用 @RequestMapping 注解来映射请求的 URL
     * 2. 返回值会通过视图解析器解析为实际的物理视图, 对于 InternalResourceViewResolver 视图解析器,
     * 会做如下的解析:通过 prefix + returnVal + 后缀 这样的方式得到实际的物理视图, 然会做转发操作
     * /WEB-INF/views/success.jsp
     *
     * @return
     */
    @RequestMapping("/helloworld")
    public String hello() {
        System.out.println("hello world");
        return "success.jsp";
    }
}
<%--
  Created by IntelliJ IDEA.
  User: 薛恒杰
  Date: 2018/12/24
  Time: 9:39
  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>
        <h1>Hello World</h1>
    </body>
</html>
<?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">

    <!-- 配置自定扫描的包 -->
    <context:component-scan base-package="com.xuehj.springmvc"/>

    <!-- 配置视图解析器: 如何把 handler 方法返回值解析为实际的物理视图 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!--<property name="prefix" value="/view/"/>-->
        <!--<property name="suffix" value=".jsp"/>-->
        <property name="prefix" value=""/>
        <property name="suffix" value=""/>
    </bean>
</beans>
<?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">
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext.xml</param-value>
    </context-param>
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 配置 DispatcherServlet -->
    <servlet>
        <servlet-name>dispatcher</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置 DispatcherServlet 的一个初始化参数: 配置 SpringMVC 配置文件的位置和名称 -->
        <!--
            实际上也可以不通过 contextConfigLocation 来配置 SpringMVC 的配置文件, 而使用默认的.
            默认的配置文件为: /WEB-INF/<servlet-name>-servlet.xml
        -->
        <!--
        <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>dispatcher</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>
</web-app>

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转载自blog.csdn.net/weixin_41577923/article/details/85232400