创建基于注解的springmvc的流程

1.使用myeclipse,新建一个web project

2.在WEB-INFO下的lib中添加项目所需jar包

3.在web.xml中配置总的控制中心及映射

方式一:(默认路径WEB-INFO下的默认文件mvc-servlet.xml)

<!-- 配置总的控制中心 -->
<servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!--设置配置文件加载时间为启动时立即加载-->
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/</url-pattern>
</servlet-mapping>

方式二:(自定义路径下的相应文件,在实际项目中常用于分模块分职能将配置文件拆分为多个文件,便于管理,在加载时加载多个文件)

<!-- 配置总的控制中心 -->
<servlet>
    <servlet-name>springmvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
        <!-- servelet默认查找的属性上下文配置文件的位置 -->
        <param-name>contextConfigLocation</param-name>
        <!--以通配符的方式加载spring包下所有配置文件-->
        <param-value>/WEB-INF/classes/spring/*.xml</param-value>
    </init-param>
    <!--设置配置文件加载时间为启动时立即加载-->
    <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>/*</url-pattern>
</servlet-mapping>

4.配置servlet.xml

<?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" xmlns:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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-4.0.xsd http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd">
    <!-- 让系统启动时读取文件并分析注解,完成初始化的配置 -->
    <!-- 主键扫描 -->
    <context:component-scan base-package="mix.controller" />
    <!-- 定义跳转的文件的前后缀 ,视图模式配置-->
    <bean  class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>    

</beans>

5.新建控制器TestController

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

//标记控制器
@Controller
public class TestController {
    //设置路径映射
    @RequestMapping("/start")
    public String start() {
        return "start";
    }
}

6.在WEB-INF下创建文件夹jsp,在jsp包下创建start.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>    
    <title>start</title>
  </head> 
  <body>
    This is my start page. <br>
  </body>
</html>

最后部署项目,测试,输入http://localhost:8080/test/start

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