spring+ hibernate + struth2 整合開發

 

Struts2+Spring+Hibernate是J2EE的最新流行框架。本篇是我搭建這個框架的經驗總結，有很多人搭建這個框架總會遇到

大大小小的問題，網上也沒有什麼行之有效的方案或成體系的介紹，所以我就決定總結一下我的搭建過程。給一些搭

建尚存問題的朋友提供幫助。

我用這個框架，實現的是基本的CRUD功能的一個僱員管理系統，本來打算豐富一下功能，但是一直沒能抽出空去搞。

目前版本暫定爲1.0，除了CRUD外還配置了表單驗證框架JSValidation。功能都能很順利的實現。

現在分享部分源碼，來說明一些注意事項。

以下是部分搭建過程及源碼：

1.先組合實現Hibernate3.2+Spring2.5支持，刪除hibernate.cfg.xml文件，修改applicationContext.xml文件的內容，增加SessionFactory和dataSource的設置。

2.通過MyEclipse的嚮導方式，生成POJO類和對應的映射文件。

3.修改applicationContext.xml文件中<property name="mappingResources">元素的內容。

4.編寫DAO接口和實現類。

5.修改applicationContext.xml文件，增加對Dao實現類的配置。

6.組合Struts2和Spring2.5，修改web.xml文件，增加struts2的所需要的過濾器配置。

7.增加struts2相應類庫，增加struts2與spring的配置jar包。

8.拷貝struts.xml文件到src根目錄下，再修改struts.xml文件，進行常量配置。

9.修改web.xml文件，配置Spring監聽器，和上下文變量。並增加OpenSessionInViewFilter的設置。

10.寫入action類。

11.配置struts.xml文件。

12.修改applicationContext.xml

13.編寫Jsp文件。

14.加載運行項目。

下面是關鍵文件的源碼：

struts.xml源碼：

<!--

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--><?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>
<!-- struts2委託spring管理 -->
    <constant name="struts.objectFactory" value="spring"/>
    <!-- /crm/emp/add.action -->
    <package name="crm_employee" extends="struts-default" namespace="/emp">
        <action name="add" class="addBean" method="add">
            <result>add.action</result>
            <result>/emp/add_suc.jsp</result>
        </action>
        <action name="list" class="listBean" method="list">
            <result>/emp/list.jsp</result>
        </action>
        <action name="delete" class="deleteBean" method="delete">
            <result>delete.action</result>
            <result>/emp/delete_suc.jsp</result>
        </action>
        <action name="update" class="updateBean" method="update">
            <result>update.action</result>
            <result>/emp/edit_suc.jsp</result>
        </action>
        <action name="edit" class="editBean" method="edit">
            <result>/emp/edit.jsp</result>
        </action>
        <!-- Add actions here -->
    </package>
</struts>

 

web.xml源碼：

<!--

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--><?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">
    <!-- 配置spring的監聽器 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/applicationContext*.xml</param-value>
    </context-param>
    <!-- 開啓監聽 -->
    <listener>
        <listener-class>
            org.springframework.web.context.ContextLoaderListener
        </listener-class>
    </listener>
    <!-- 配置OpenSessionInViewFilter,必須在struts2監聽之前 -->
    <filter>
        <filter-name>lazyLoadingFilter</filter-name>
        <filter-class>
            org.springframework.orm.hibernate3.support.OpenSessionInViewFilter
        </filter-class>
    </filter>
    <!-- 設置監聽加載上下文 -->
    <filter>
        <filter-name>struts2</filter-name>
        <filter-class>
            org.apache.struts2.dispatcher.FilterDispatcher
        </filter-class>
    </filter>
    <filter-mapping>
    <filter-name>lazyLoadingFilter</filter-name>
    <url-pattern>*.action</url-pattern>
    </filter-mapping>
    <filter-mapping>
        <filter-name>struts2</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
    </welcome-file-list>
</web-app>

applicationContext.xml源碼：

<!--

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--><?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: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-2.0.xsd
    http://www.springframework.org/schema/aop
    http://www.springframework.org/schema/aop/spring-aop-2.0.xsd">
    <!-- 配置Hibernate支持 -->
    <bean id="dataSource"
        class="org.apache.commons.dbcp.BasicDataSource">
        <property name="driverClassName"
            value="com.mysql.jdbc.Driver">
        </property>
        <property name="url"
            value="jdbc:mysql://localhost:3306/tables">
        </property>
        <property name="username" value="root"></property>
        <property name="password" value="hicc"></property>
    </bean>
    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
        <property name="dataSource">
            <ref bean="dataSource" />
        </property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.dialect">
                    org.hibernate.dialect.MySQLDialect
                </prop>
                <prop key="hibernate.show_sql">true</prop>
            </props>
        </property>
        <property name="mappingResources">
            <list>
                <value>com/sy/crm/model/Employee.hbm.xml</value>
            </list>
        </property>
    </bean>
    <bean id="employeeDao"
        class="com.sy.crm.dao.hibernate.EmployeeDaoHibernate">
        <property name="sessionFactory">
            <ref bean="sessionFactory" />
        </property>
    </bean>
    <bean id="employeeManager"
        class="com.sy.crm.service.impl.EmployeeManagerImpl">
        <property name="employeeDao">
            <ref bean="employeeDao" />
        </property>
    </bean>
    
    <bean id="addBean" class="com.sy.crm.action.EmployeeAction" scope="prototype">
        <property name="employeeManager">
            <ref bean="employeeManager" />
        </property>
    </bean>
    <bean id="listBean" class="com.sy.crm.action.EmployeeAction" scope="prototype">
        <property name="employeeManager">
            <ref bean="employeeManager" />
        </property>
    </bean>
    <bean id="deleteBean" class="com.sy.crm.action.EmployeeAction" scope="prototype">
        <property name="employeeManager">
            <ref bean="employeeManager" />
        </property>
    </bean>
    <bean id="updateBean" class="com.sy.crm.action.EmployeeAction" scope="prototype">
        <property name="employeeManager">
            <ref bean="employeeManager" />
        </property>
    </bean>
    <bean id="editBean" class="com.sy.crm.action.EmployeeAction" scope="prototype">
        <property name="employeeManager">
            <ref bean="employeeManager" />
        </property>
    </bean>
    <!-- 事務管理器 -->
    <bean id="transactionManager" 
    class="org.springframework.orm.hibernate3.HibernateTransactionManager">
    <property name="sessionFactory">
    <ref local="sessionFactory"/>
    </property>
    </bean>
    <!-- 配置事務特性，配置add，delete，update開始的方法，事務傳播特性爲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="*" read-only="true"/>
    </tx:attributes>
    </tx:advice>
    <!-- 配置那些類的方法進行事務管理，當前com.sy.crm.service包中的子包，
    類中所有方法需要，還需要參考tx:advice的設置 -->
    <aop:config>
    <aop:pointcut id="allManagerMethod" expression="execution(*
    com.sy.crm.service.*.*(..))"/>
    <aop:advisor advice-ref="txAdvice" pointcut-ref="allManagerMethod"/>
    </aop:config>
    </beans>

 

add.jsp源碼：

<!--

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--><%@ 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>add page</title>
    <script language="JavaScript" src="validation-framework.js"></script>
    <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">

  </head>
  <body>
  <center>
   <h3>僱員註冊：</h3><br>
   <h4><a href="../emp/list.action">查看所有僱員</a></h4>
   <div id="error" style="color:blue; font-weight:bold;"></div>
   <s:form action="add" method="post" onsubmit="return doValidate('form')" name="form" id="form">
   <s:textfield name="employee.name" label="姓名" id="name"/>
   <s:textfield name="employee.address" label="地址"/>
   <s:textfield name="employee.phone" label="電話"/>
   <s:submit value="員工註冊"/>
   </s:form>
   </center>
  </body>
</html>

list.jsp源碼：

 

<!--

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--><%@ 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>list employee page</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">
        <style type="text/css">
table {
    border: 1px solid black;
    border-collapse: collapse;
}

table thead tr th {
    border: 1px solid black;
    padding: 3px;
    background-color: #cccccc;
}

table tbody tr td {
    border: 1px solid black;
    padding: 3px;
}
</style>
    </head>

    <body>
        <center>
            <h3>
                僱員管理：
            </h3>
            <br>
            <h4>
                <a href="../emp/add.jsp">員工註冊</a>
            </h4>
            <s:form action="delete" theme="simple">
                <table>
                    <thead>
                        <tr>
                            <th>
                                選擇
                            </th>
                            <th>
                                編號
                            </th>
                            <th>
                                姓名
                            </th>
                            <th>
                                電話
                            </th>
                            <th>
                                地址
                            </th>
                            <th>
                                操作
                            </th>
                        </tr>
                    </thead>
                    <tbody>
                        <s:iterator value="employees">
                            <tr>
                                <td>
                                    <input type="checkbox" name="id"
                                        value='<s:property value="id" />' />
                                </td>
                                <td>
                                    <s:property value="id" />
                                </td>
                                <td>
                                    <s:property value="name" />
                                </td>
                                <td>
                                    <s:property value="phone" />
                                </td>
                                <td>
                                    <s:property value="address" />
                                </td>
                                <td>
                                    <a
                                        href='<s:url action="edit"><s:param name="id" value="id" /></s:url>'>
                                        修改 </a> &nbsp;
                                    <a
                                        href='<s:url action="delete"><s:param name="id" value="id" /></s:url>'>
                                        刪除 </a>
                                </td>
                            </tr>
                        </s:iterator>
                    </tbody>
                </table>
                <s:submit value="delete" />
            </s:form>
        </center>
    </body>
</html>

 

顯示界面如圖：

 

 

 

下面是項目的構圖：

第一點注意的是，搭建出項目，一定會報錯，因爲Spring 2.5 AOP Libraries中的asm的三個jar包會和

Hibernate 3.2 Core Libraries中的asm的jar包中的某些類中有衝突。所以一定要刪除Spring中的三個asm的jar包。

第二點要注意的是，struts2的配置包的導入，需要的是5個jar包分別是：

struts2-core-2.0.11.2.jar

freemarker-2.3.8.jar

ognl-2.6.11.jar

xwork-2.05.jar

commons-logging-1.0.4.jar

struts2+spring配置包：struts2-spring-plugin-2.0.11.2.jar

網上有些還說需要把4個spring的包拷到lib下，我是拷了但是，並不確定這樣做是否有必要。

總之是正常運行了。

所以也就沒想太多。如果有的朋友運行不了，可以考慮把這4個需要的包寫上來。

好了就說這麼多吧，有疑問的朋友可以留言。我會盡量答覆。

施楊出品！！！