SpringMVC HelloWord

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SpringMVC HelloWord

1、 导入jar包

commons-logging-1.0.4.jar
spring-aop-4.1.6.RELEASE.jar
spring-beans-4.1.6.RELEASE.jar
spring-context-4.1.6.RELEASE.jar
spring-context-support-4.1.6.RELEASE.jar
spring-core-4.1.6.RELEASE.jar
spring-expression-4.1.6.RELEASE.jar
spring-web-4.1.6.RELEASE.jar
spring-webmvc-4.1.6.RELEASE.jar

2、 web.xml配置（红色配置指明mvc配置文件位置（src/mvc.xml））

  <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:mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springmvc</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>

3、 Controller

package com.controller;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

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

@Controller
public class HelloController {

    @RequestMapping("/hello")
    public ModelAndView hello(HttpServletRequest req,HttpServletResponse resp){
        ModelAndView mv=new ModelAndView();
        //封装要显示到视图中的数据
        mv.addObject("msg", "hello springmvc_hello");
        //视图名
        mv.setViewName("hello");//WEB-INF/jsp/hello.jsp
        return mv;
    }
}

4、 springmvc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
        ">
    <!-- 配置渲染器 视图解析器 17.5.2 Chaining ViewResolvers -->
    <bean id="jspViewResolver"
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
            value="org.springframework.web.servlet.view.JstlView" />
        <!-- 结果视图的前缀 -->
        <property name="prefix" value="/WEB-INF/jsp/" />
        <!-- 结果视图的后缀 -->
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- 扫描该包下的注解 -->
    <context:component-scan base-package="com.controller" />
</beans>