2008年4月11日 edited by dingdangxiaoma
spring mvc 与struts jsf 类似。表现层，因为前几天看例子，是spring mvc写的，所以就做个小例子吧。
参考资料：http://www.ideawu.net/person/spring_mvc.html ，这是个入门的例子，但是新手做起来，真麻烦，代码前面带编号，真是个问题。
能过输入:http://localhost/springmvc1/hello.do 调用 hello.jsp 打印出Hello World 页面。
1.包配置：spring.jar ,common-logging.jar jstl.jar standard.jar
2.后台类书写：HelloController.java
package com.ideawu;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.web.servlet.ModelAndView;
import org.springframework.web.servlet.mvc.Controller;
public class HelloController implements Controller {
/*
* private HelloManager helloManager;
*
* public void setHelloManager(HelloManager helloManager) {
* this.helloManager = helloManager; }
*/
public ModelAndView handleRequest(HttpServletRequest request,
HttpServletResponse response) throws Exception {
request.setAttribute("hello_1", "你好啊, Spring!");
request.setAttribute("hello_2", "Hello World!");
return new ModelAndView("hello");
}
}
3.xml配置: ideawu-servlet.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE beans PUBLIC "-//SPRING//DTD BEAN//EN" "http://www.springframework.org/dtd/spring-beans.dtd">
<beans>
<bean id="viewResolver"
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<bean id="simpleUrlHandlerMapping"
class="org.springframework.web.servlet.handler.SimpleUrlHandlerMapping">
<property name="mappings">
<props>
<prop key="/hello.do">helloController</prop>
</props>
</property>
</bean>
<bean id="helloController" class="com.ideawu.HelloController">
<!--
<property name="helloManager" ref="helloManager" />
-->
</bean>
</beans>
4.jsp 文件: /WEB-INF/jsp/hello.jsp
<%@ page contentType="text/html; charset=UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Hello World!</title>
</head>
<body>
<h2>
${hello_1}
</h2>
<h2>
${hello_2}
</h2>
</body>
</html>
5.web.xml配置:
<filter>
<filter-name>encodingFilter</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>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>*.do</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>ideawu</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ideawu</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
<jsp-config>
<taglib>
<taglib-uri>http://java.sun.com/jsp/jstl/core</taglib-uri>
<taglib-location>/WEB-INF/tld/c.tld</taglib-location>
</taglib>
<taglib>
<taglib-uri>http://java.sun.com/jsp/jstl/fmt</taglib-uri>
<taglib-location>/WEB-INF/tld/fmt.tld</taglib-location>
</taglib>
</jsp-config>
以上就是程序的所代码了。总之，就是在web.xml中进行过虑器配置，写后台处理程序，xml中进行后台处理的映射，编写.jsp页面。也就通过访问*.do(或其它格式)，来映射到相应的.jsp程序上。