SpringMVC学习笔记（一）——第一个Demo(helloworld)

向右看齐 2022-05-15 11:40 234阅读 0赞

jar包

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项目预览图

![70 1][]

web.xml配置：

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
      <display-name>SpringMVC_01</display-name>
      <welcome-file-list>
        <welcome-file>index.jsp</welcome-file>
        <welcome-file>index.html</welcome-file>
      </welcome-file-list>
      <servlet>
      	<servlet-name>springmvc</servlet-name>
      	<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
      	<init-param>
      		<param-name>contextConfigLocation</param-name>
      		<param-value>classpath:spring-mvc.xml</param-value>
      	</init-param>
      </servlet>
      <servlet-mapping>
      	<servlet-name>springmvc</servlet-name>
      	<url-pattern>*.do</url-pattern>
      </servlet-mapping>
    </web-app>

spring-mvc.xml配置：

<?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:p="http://www.springframework.org/schema/p"
        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.java1234"/>
    
        
    	<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    		<property name="prefix" value="/WEB-INF/jsp/" />
    		<property name="suffix" value=".jsp"></property>
    	</bean>
    
    </beans>

HelloWorldContorller：

package com.java1234.controller;
    
    import org.springframework.stereotype.Controller;
    import org.springframework.ui.Model;
    import org.springframework.web.bind.annotation.RequestMapping;
    
    @Controller
    public class HelloWorldContorller {
    	@RequestMapping("/helloWorld")
    	public String helloWorld(Model model) {
    		model.addAttribute("message", "HelloWorld StringMVC");
    		return "helloworld";
    	}
    	
    }

index.html

<!DOCTYPE html>
    <html>
    <head>
    <meta charset="UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    	<a href="helloWorld.do">问候springMVC</a>
    </body>
    </html>

helloworld.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
        pageEncoding="UTF-8"%>
    <!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
    <html>
    <head>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
    <title>Insert title here</title>
    </head>
    <body>
    	${message}
    </body>
    </html>

测试：

![70 2][]

[70]: /images/20220515/75e4d0bac132463a8631a34a79e1f3b0.png
[70 1]: /images/20220515/a4e0b03e825a449db75ff31ab2658c90.png
[70 2]: /images/20220515/fbc29798eb424707a77fffea124ec565.png