二、Struts2和Spring2.5的整合
（1）在web.xml中加入Struts2過濾器
|
<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）導入struts2.1.6的jar包
這個里要導入7個jar包，可能很多教程上說只要加如5個核心包就可以了，但是2.1.6卻要另外導入commons-io-1.3.2.jar、commons-fileupload-1.2.1.jar兩個包，而且這個說明在官網的doc中也沒有說明，這是我們需要注意一點的。當然我們也可以把struts2的所有包導入。
（3）加入struts2和spring整合的jar包
將struts2-spring-plugin-2.1.6.jar導入項目中。
（4）在src下建一個struts.xml，默認格式如下：
|
<?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>之間添加一個常量，將struts交給spring管理。
|
<struts>
<constant name="struts.objectFactory" value="spring"/>
</struts>
|
（5）修改web.xml文件，配置Spring監聽器和上下文變量
|
<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：此配置需要放在過濾器之前。
增加OpenSessionInView過濾器的設置，放在struts過濾器之前
作用：
|
Spring中對OpenSessionInViewFilter的描述：它是一個Servlet2.3過濾器，用來把一個Hibernate Session和一次完整的請求過程對應的線程相綁定。目的是為了實現"Open Session in View"的模式。例如： 它允許在事務提交之后延遲加載顯示所需要的對象。
|
|
<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）編寫Action類繼承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，將action寫入
|
<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>
|
同時增加事務的處理
|
<bean id="transactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory">
<ref local="sessionFactory"/>
</property>
</bean>
<!-- 配置事務特性，處理add、delete、update等開始方法，傳播特性為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>
|
要讓applicationContext.xml認得事務處理，我們需要將beans頭識別修改一下，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>雇員用戶信息增加</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>雇員用戶信息輸入</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="電話" />
<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>雇員用戶信息顯示</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>雇員用戶信息顯示</h1>
<table>
<tr>
<td>編號</td>
<td>姓名</td>
<td>地址</td>
<td>電話</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，測試效果
http://localhost:8088/crm/emp/add.jsp
到這里，整個實例算運行起來了。至于其他的幾個操作，如修改、刪除就自己做了。