SSH整合终结版(三)
本文的前面两部分已对Spring和Hibernate两大框架进行了集成，下面继续对Struts进行整合。
第一步，原来我们对spring容器实例化要手工操作，现在我们通过在web.xml中配置监听器来对Spring容器进行实例化。代码如下：
文件名：web.xml
<?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">
<!-- 在web中实例化容器 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:beans.xml</param-value>
</context-param>
<!-- 对Spring容器进行实例化-->
<listener>
<listener-class> org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
</web-app>
第二步，在web.xml中配置struts。
<!-- Standard Action Servlet Configuration (with debugging) -->
<servlet>
<servlet-name>action</servlet-name>
<servlet-class>org.apache.struts.action.ActionServlet</servlet-class>
<init-param>
<param-name>config</param-name>
<param-value>/WEB-INF/struts-config.xml</param-value>
</init-param>
<init-param>
<param-name>debug</param-name>
<param-value>2</param-value>
</init-param>
<init-param>
<param-name>detail</param-name>
<param-value>2</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<!-- Standard Action Servlet Mapping -->
<servlet-mapping>
<servlet-name>action</servlet-name>
<url-pattern>*.do</url-pattern>
</servlet-mapping>
第三步，在WEB-INF目录下编写struts-config.xml文件。代码如下：
<?xml version="1.0" encoding="utf-8" ?>
<!DOCTYPE struts-config PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 1.2//EN"
"http://jakarta.apache.org/struts/dtds/struts-config_1_2.dtd">
<struts-config>
<action-mappings>
<action path="/person/list" type="com.lyk.web.actions.PersonAction" validate="false">
<forward name="list" path="/WEB-INF/page/personlist.jsp"/>
</action>
</action-mappings>
<controller>
<set-property property="processorClass"
value="org.springframework.web.struts.DelegatingRequestProcessor"/>
</controller>
</struts-config>
其中已配置了一个action，下面我们对该action进行创建。代码如下：
package com.lyk.web.actions;
import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.lyk.service.PersonService;
public class PersonAction extends Action {
@Resource PersonService personService;
@Override
public ActionForward execute(ActionMapping arg0, ActionForm arg1, HttpServletRequest arg2, HttpServletResponse arg3) throws Exception {
// TODO 自动生成方法存根
/* WebApplicationContext ctx = WebApplicationContextUtils.getWebApplicationContext
(this.getServlet().getServletContext());
PersonService personService = (PersonService)ctx.getBean("personService");*/
arg2.setAttribute("persons", personService.getPersons());
return arg0.findForward("list");
}
}
第四步，编写View层JSP页面（ <forward name="list" path="/WEB-INF/page/personlist.jsp"/>），在WEB-INF/page目录下创建personlist.jsp页面。代码如下：
文件名：personlist.jsp
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<base href="<%=basePath%>">
<title>人员列表</title>
<meta http-equiv="pragma" content="no-cache">
<meta http-equiv="cache-control" content="no-cache">
<meta http-equiv="expires" content="0">
<meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
<meta http-equiv="description" content="This is my page">
<!--
<link rel="stylesheet" type="text/css" href="styles.css">
-->
</head>
<body>
人员列表：<br>
<c:forEach items="${persons}" var="person">
id=${person.id},name= ${person.name} <br>
</c:forEach>
</body>
</html>
第五步，由于在Action的编写中我们采用了Spring的依赖注入功能对personService进行了注入，所以，我们需要在beans.xml文件中加入如下代码：
<bean id="personService" class="com.lyk.service.imp.PersonServiceBean" />
<bean id="smsService" class="com.lyk.service.imp.SMSServiceBean" />
<bean name="/person/list" class="com.lyk.web.actions.PersonAction" />
<bean name="/sms/list" class="com.lyk.web.actions.SMSAction" />
这样，实现了action类编写的简洁化。
最后，发布SSH项目，打开浏览器进行测试，输入http://localhost:8080/SSH/person/list.do，输出结果为（示例）：
人员列表：
id=1,name= lyk
id=2,name= ii
id=3,name= 大P
id=4,name= 小S
如果看到此结果，则我们的SSH整合项目就成功了，哈哈，恭喜了。