springmvc 注解版helloworld

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这是目录结构图。springmvc的helloworld的几个步骤：

一、添加jar包

二、配置web.xml（这一步struts2类似）

三、配置spring.xml

四、写action

五、写jsp访问

一、把从spring官网上下载的jar包都加进去，然后再加一个commons-logging-1.1.jar（spring依赖它做日志记录）。

二、web.xml写法

 <?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaeehttp://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0"> <display-name>HelloSpringMVC_SimpleAnnotation</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>springMVC</servlet-name>  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>  <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath*:config/spring.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping>  <servlet-name>springMVC</servlet-name>  <url-pattern>/</url-pattern> </servlet-mapping></web-app>

三、spring.xml的写法

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans" xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.springframework.org/schema/beans       http://www.springframework.org/schema/beans/spring-beans-3.0.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-3.0.xsd"> <!-- 注解扫描包 --> <context:component-scan base-package="com.evan" /> <!-- 开启注解 --> <mvc:annotation-driven /> <!-- 视图解析器 --> <bean id="viewResolver"  class="org.springframework.web.servlet.view.InternalResourceViewResolver">  <property name="prefix" value="/"></property>  <property name="suffix" value=".jsp"></property> </bean></beans>

四、action的写法（HelloWorld.java)

package com.evan.action;import org.springframework.stereotype.Controller;import org.springframework.web.bind.annotation.RequestMapping;@Controllerpublic class HelloWorld { @RequestMapping("/hello") public String hello() {  return "success"; }}

五、succes.jsp的写法。（就在jsp页面加了一句“注解版springmvchelloworld”）

<%@ 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>注解版springmvchelloworld</body></html>

六、将项目加到tomcat，启动tomcat。然后访问地址：http://localhost:8080/HelloSpringMVC_SimpleAnnotation/hello

这样一个springmvc版的helloworld一句完成。如果以上讲的不清楚，那你可以到我的资源下载源码。免积分的。

资源的下载地址：http://download.csdn.net/detail/zl544434558/6364877