spring mvc入门案例

spring mvc入门案例

1.步骤

新建web动态过程



2.加入spring jar包

commons-logging-1.2.jar

spring-aop-4.2.4.RELEASE.jar

spring-beans-4.2.4.RELEASE.jar

spring-context-4.2.4.RELEASE.jar

spring-core-4.2.4.RELEASE.jar

spring-expression-4.2.4.RELEASE.jar

spring-web-4.2.4.RELEASE.jar

spring-webmvc-4.2.4.RELEASE.jar

spring-aspects-4.2.4.RELEASE.jar

spring-context-support-4.2.4.RELEASE.jar

spring-jms-4.2.4.RELEASE.jar

spring-tx-4.2.4.RELEASE.jar

spring-jdbc-4.2.4.RELEASE.jar

spring-messaging-4.2.4.RELEASE.jar

3.在web.xml中配置DispatchServlet

配置 DispatcherServlet ：DispatcherServlet 默认加载 /WEBINF/.xml 的 spring 配置文件, 启动 WEB 层的 Spring 容器。可以通过 contextConfigLocation 初始化参数自定义配置文件的位置和名称

<!-- SpringMVC配置 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

<!--指定springmvc核心配置文件-->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.shtml</url-pattern>
</servlet-mapping>
<!-- //End SpringMVC配置 -->

4.加入springmvc的配置文件

<?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"
xmlns:mvc="http://www.springframework.org/schema/mvc"
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 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<!-- 包扫描 -->
<context:component-scan base-package="com.wowo.controller" />

<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/" />
<property name="suffix" value=".jsp" />
</bean>

</beans>

5.控制器代码实现

@Controller
public class UserController {
/***
* 第一个入门案例
* @return
*/
@RequestMapping(value = "/user/hello")
public String hello(){
System.out.println("这是我的第一个入门案例......");
return "/WEB-INF/hello.jsp";
}
}

6.运行效果