Spring学习笔记-1：SpringMVC hello world

Posted 2022-12-02 xiaojimanman

转载请注明出处：http://blog.csdn.net/xiaojimanman/article/details/51853336

http://www.llwjy.com/blogdetail/c7ba5dbb65541449a3a293d3f72277d7.html

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依赖框架 Spring以及Spring相关依赖

web.xml添加代码

<?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>SpringStudy</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>

	<servlet>
		<servlet-name>springDispatcherServlet</servlet-name>
		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
		<init-param>
			<param-name>contextConfigLocation</param-name>
			<param-value>
	      	/WEB-INF/spring.xml
	      	</param-value>
		</init-param>
		<init-param>
			<param-name>encoding</param-name>
			<param-value>utf-8</param-value>
		</init-param>
		<init-param>
			<param-name>forceEncoding</param-name>
			<param-value>true</param-value>
		</init-param>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>springDispatcherServlet</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
</web-app>

添加Spring配置文件 spring.xml

<?xml version="1.0" encoding="GBK"?>
<beans xmlns="http://www.springframework.org/schema/beans"
    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:aop="http://www.springframework.org/schema/aop"
    xmlns:context="http://www.springframework.org/schema/context"
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p"
    xmlns:task="http://www.springframework.org/schema/task" xmlns:tx="http://www.springframework.org/schema/tx"
    xmlns:util="http://www.springframework.org/schema/util"
    xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
        http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
        http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
        http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
        http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd">

	<mvc:annotation-driven/>
	 <!-- 需要扫描的包 -->
	<context:component-scan base-package="com.lulei.spring.controller"></context:component-scan>
	
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">    
        <property name="prefix" value="/WEB-INF/jsp/" />   <!-- 模板路径 -->   
        <property name="suffix" value=".jsp" />    <!-- 模板後綴 -->  
    </bean>  
	
</beans>

Controller注解实现的功能

 /**  
 *@Description:     
 */ 
package com.lulei.spring.controller;

import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/test") //根目录url，可以省略
public class TestController 
	
	//访问url完整路径：http://ip:port/projectname/test/add.do，后面的method可以省略
	@RequestMapping(value = "/add.do", method=RequestMethod.GET, RequestMethod.POST)
	public String add(Model model) 
		model.addAttribute("username", "test Spring Study");
		return "index";
	

模板编写 index.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> 
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %> 
<%
	String path = request.getContextPath();
	String basePath = request.getScheme() + "://"
			+ request.getServerName() + ":" + request.getServerPort()
			+ path;
%> 
<!DOCTYPE html>    
<html>    
    <head>    
        <meta http-equiv="Content-Type" content="text/html; charset=UTF-8">    
        <title>Insert title here</title>    
    </head>    
        
    <body>   
        <c:out value="$username"></c:out><br/>
    </body>    
</html>    

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