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Spring MVC 入门示例

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为了简单,将spring-framework中dist下的所有jar包拷贝到项目的WEB-INF/lib目录下
需要添加Apache commons logging日志,此处使用的是commons.logging

 

web.xml中添加如下配置:

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5" xmlns="http://java.sun.com/xml/ns/javaee"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
	http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
	<welcome-file-list>
		<welcome-file>index.jsp</welcome-file>
	</welcome-file-list>
	<session-config>
		<session-timeout>30</session-timeout>
	</session-config>
	<filter>
		<filter-name>CharacterEncodingFilter</filter-name>
		<filter-class>
			org.springframework.web.filter.CharacterEncodingFilter
		</filter-class>
		<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>
	</filter>
	<filter-mapping>
		<filter-name>CharacterEncodingFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>
	<servlet>
		<servlet-name>dispatcherServlet</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>
		<load-on-startup>1</load-on-startup>
	</servlet>
	<servlet-mapping>
		<servlet-name>dispatcherServlet</servlet-name>
		<url-pattern>*.do</url-pattern>
	</servlet-mapping>
</web-app>

以上配置已经增加了由spring提供的编码过滤器来解决乱码问题

 

编写MVC控制配置文件mvc-config.xml,该文件在WEB-INF的spring文件下,而web.xml中已经配置加载该文件夹下的所有xml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"
	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">

	<!-- prefix和suffix:查找视图页面的前缀和后缀(前缀[逻辑视图名]后缀)
		比如传进来的逻辑视图名为hello,则该该jsp视图页面应该存放在“WEB-INF/jsp/hello.jsp” -->
	<bean
		class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		<property name="prefix" value="/jsp/" />
		<property name="suffix" value=".jsp" />
	</bean>

	<bean name="/hello.do" class="test.HelloWorldController" />
</beans>

 

编写控制的类,该类接受参数,设置该参数为视图数据

package test;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
// http://localhost:8080/spring/hello.do?user=java
public class HelloWorldController implements Controller{
	public ModelAndView handleRequest(HttpServletRequest request,
			HttpServletResponse response) {
		ModelAndView mv = new ModelAndView();
		// 添加模型数据 可以是任意的POJO对象
		mv.addObject("user", request.getParameter("user"));
		// 设置逻辑视图名,视图解析器会根据该名字解析到具体的视图页面
		mv.setViewName("hello");
		return mv;
	}
}

 

视图使用JSP,页面很简单。在WebRoot下新建文件夹jsp,新建jsp命名为hello.jsp。

<%@ page language="java" pageEncoding="UTF-8"%>
<html>
<head>
<title>SpringMVC</title>
</head>
<body>
您好,${user }!
</body>
</html>

 

访问路径http://localhost:8080/spring/hello.do?user=java看效果

 

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评论
2 楼 Stark_Summer 2014-05-10  
endual 写道
果断用maven啊。

果断用 maven too
1 楼 endual 2014-04-10  
果断用maven啊。

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