S2SH搭建的一个实例学习笔记(三)

S2SH搭建的一个实例学习笔记(三)

 

二、Struts2和Spring2.5的整合

（1）在web.xml中加入Struts2过滤器

<filter>   <filter-name>struts2</filter-name>      <filter-class>org.apache.struts2.dispatcher.FilterDispatcher</filter-class>  </filter>  <filter-mapping>   <filter-name>struts2</filter-name>   <url-pattern>/*</url-pattern>  </filter-mapping>

（2）导入struts2.1.6的jar包

这个里要导入7个jar包，可能很多教程上说只要加如5个核心包就可以了，但是2.1.6却要另外导入commons-io-1.3.2.jar、commons-fileupload-1.2.1.jar两个包，而且这个说明在官网的doc中也没有说明，这是我们需要注意一点的。当然我们也可以把struts2的所有包导入。

（3）加入struts2和spring整合的jar包

将struts2-spring-plugin-2.1.6.jar导入项目中。

（4）在src下建一个struts.xml，默认格式如下：

<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE struts PUBLIC     "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"     "http://struts.apache.org/dtds/struts-2.0.dtd"> <struts>     </struts>

 在<struts></struts>之间添加一个常量，将struts交给spring管理。

<struts>     <constant name="struts.objectFactory" value="spring"/> </struts>

（5）修改web.xml文件，配置Spring监听器和上下文变量

<context-param>   <param-name>contextConfigLocation</param-name>   <param-value>/WEB-INF/applicationContext*.xml</param-value>  </context-param>  <listener>      <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>  </listener>

注意：此配置需要放在过滤器之前。

       增加OpenSessionInView过滤器的设置，放在struts过滤器之前

作用：

Spring中对OpenSessionInViewFilter的描述：它是一个Servlet2.3过滤器，用来把一个Hibernate Session和一次完整的请求过程对应的线程相绑定。目的是为了实现"Open Session in View"的模式。例如： 它允许在事务提交之后延迟加载显示所需要的对象。

 

<filter>   <filter-name>lazyLoadingFilter</filter-name>      <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>  </filter> <filter-mapping>   <filter-name>lazyLoadingFiter</filter-name>   <url-pattern>*.action</url-pattern>  </filter-mapping>

（6）编写Action类继承ActionSupport

package cn.zhang.crm.action; import java.util.List; import cn.zhang.crm.model.pojo.Employee; import cn.zhang.crm.service.EmployeeManager; import com.opensymphony.xwork2.ActionSupport; publicclass EmployeeAction extends ActionSupport {     privatestaticfinallongserialVersionUID = -3117990268615208697L;     private EmployeeManager employeeManager;     private Employee employee;     private List employees;     privateintid;         publicint getId() {        returnid;     }     publicvoid setId(int id) {        this.id = id;     }     publicvoid setEmployeeManager(EmployeeManager employeeManager) {        this.employeeManager = employeeManager;     }         public String add(){        employeeManager.addEmployee(employee);        returnSUCCESS;     }         public String list(){        this.employees = employeeManager.listEmployee();        returnSUCCESS;     }         public String delete(){        employeeManager.deleteEmployee(id);        returnSUCCESS;     }     public List getEmployees() {        returnemployees;     }     publicvoid setEmployees(List employees) {        this.employees = employees;     }     publicvoid setEmployee(Employee employee) {        this.employee = employee;     }     public Employee getEmployee() {        returnemployee;     } }

（7）配置struts.xml，将action写入

<package name="crm_employee" extends="struts-default" namespace="/emp">     <action name="add" class="addBean" method="add">         <result type="chain">             <param name="actionName">list</param>         </result>     </action>        <action name="list" class="listBean" method="list">            <result>list.jsp</result>        </action>        <action name="delete" class="deleteBean" method="delete">            <result>list.action</result>        </action>     <!-- Add actions here -->     </package>

（8）在applicationContext.xml中增加bean映射

<bean id="addBean" class="cn.zhang.crm.action.EmployeeAction" scope="prototype">        <property name="employeeManager">            <ref bean="employeeManager" />        </property>     </bean>     <bean id="listBean" class="cn.zhang.crm.action.EmployeeAction" scope="prototype">        <property name="employeeManager">            <ref bean="employeeManager" />        </property>     </bean>     <bean id="deleteBean" class="cn.zhang.crm.action.EmployeeAction" scope="prototype">        <property name="employeeManager">            <ref bean="employeeManager" />        </property>     </bean>

同时增加事务的处理

<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">        <property name="sessionFactory">            <ref local="sessionFactory"/>        </property>     </bean>     <!-- 配置事务特性，处理add、delete、update等开始方法，传播特性为REQUIRED-->     <tx:advice id="txAdvice" transaction-manager="transactionManager">         <tx:attributes>             <tx:method name="add*" propagation="REQUIRED" />             <tx:method name="delete*" propagation="REQUIRED" />             <tx:method name="update*" propagation="REQUIRED" />             <tx:method name="list*" propagation="REQUIRED" />             <tx:method name="*" read-only="true" />         </tx:attributes>     </tx:advice>     <aop:config>         <aop:pointcut id="allManagerMethod"             expression="execution(* cn.zhang.crm.service.*.*(..))" />         <aop:advisor advice-ref="txAdvice"             pointcut-ref="allManagerMethod" />     </aop:config>

要让applicationContext.xml认得事务处理，我们需要将beans头识别修改一下，如下：

<beans     xmlns="http://www.springframework.org/schema/beans"     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"     xmlns:aop="http://www.springframework.org/schema/aop"     xmlns:tx="http://www.springframework.org/schema/tx"     xsi:schemaLocation="http://www.springframework.org/schema/beans                       http://www.springframework.org/schema/beans/spring-beans-2.5.xsd                      http://www.springframework.org/schema/tx                          http://www.springframework.org/schema/tx/spring-tx-2.5.xsd                       http://www.springframework.org/schema/aop                          http://www.springframework.org/schema/aop/spring-aop-2.5.xsd ">

（9）添加jsp文件

emp/add.jsp

<%@ page language="java" pageEncoding="UTF-8"%> <%@ taglib uri="/struts-tags" prefix="s"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html>  <head>         <title>雇员用户信息增加</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>     <h1>雇员用户信息输入</h1>     <s:form action="add">     <s:textfield name="employee.name" label="姓名" />     <s:textfield name="employee.address" label="地址"/>     <s:textfield name="employee.phone" label="电话" />     <s:submit/>     </s:form>  </body> </html>

emp/list.jsp

<%@ page language="java" pageEncoding="UTF-8"%> <%@ taglib uri="/struts-tags" prefix="s"%> <% 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>雇员用户信息显示</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>     <h1>雇员用户信息显示</h1>     <table>     <tr>         <td>编号</td>         <td>姓名</td>         <td>地址</td>         <td>电话</td>     </tr>     <s:iterator value="employees">     <tr>         <td><s:property value="id"/></td>         <td><s:property value="name"/></td>         <td><s:property value="address"/></td>         <td><s:property value="phone"/></td>     </tr>     </s:iterator>     </table>  </body> </html>

（10）部署，测试效果

http://localhost:8088/crm/emp/add.jsp

到这里，整个实例算运行起来了。至于其他的几个操作，如修改、删除就自己做了。