传智Struts2笔记（15）Struts2+Spring2.5+Hibernate3.3整合开发

╰半橙微兮° 2022-09-28 01:28 157阅读 0赞

**Struts2+Spring2.5+Hibernate3.3整合开发**  
下面给出整合开发时Struts 2、 Hibernate、Spring需要的JAR。  
struts2-core-2.x.x.jar :Struts 2框架的核心类库  
Xwork-core-2.x.x.jar :XWork类库，Struts 2在其上构建  
ognl-2.6.x.jar :对象图导航语言（Object Graph Navigation Language），struts2框架通过其读写对象的属性  
freemarker-2.3.x.jar :Struts 2的UI标签的模板使用FreeMarker编写  
commons-fileupload-1.2.x.jar 文件上传组件，2.1.6版本后需要加入此文件  
struts2-spring-plugin-2.x.x.jar ：用于struts2集成Spring的插件  
hibernate核心安装包下的(下载路径：http://www.hibernate.org/，点击“Hibernate Core”右边的“Downloads”):  
hibernate3.jar  
lib/bytecode/cglib/hibernate-cglib-repack-2.1\_3.jar  
lib/required/\*.jar  
hibernate 注解安装包下的(下载路径：www.hibernate.org，点击“Hibernate Annotations”右边的“Downloads”):  
hibernate-annotations.jar  
lib/ejb3-persistence.jar、hibernate-commons-annotations.jar  
Hibernate针对JPA的实现包(下载路径：www.hibernate.org，点击“Hibernate Entitymanager”右边的“Downloads”):  
hibernate-entitymanager.jar  
lib/test/log4j.jar、slf4j-log4j12.jar  
Spring安装包下的  
dist/spring.jar  
lib/c3p0/c3p0-0.9.1.2.jar   lib/aspectj/aspectjweaver.jar、aspectjrt.jar    lib/cglib/cglib-nodep-2.1\_3.jar  
lib/j2ee/common-annotations.jar     lib/log4j/log4j-1.2.15.jar      lib/jakarta-commons/commons-logging.jar  
MYSQL数据库驱动jar  
  
  
Spring的配置模版：

Xml代码

1.  **<?xml** version="1.0" encoding="UTF-8"**?>**  
2.  **<beans** xmlns="http://www.springframework.org/schema/beans"  
3.         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  
4.         xmlns:context="http://www.springframework.org/schema/context"  
5.         xmlns:aop="http://www.springframework.org/schema/aop"  
6.         xmlns:tx="http://www.springframework.org/schema/tx"  
7.         xsi:schemaLocation="http://www.springframework.org/schema/beans   
8.             http://www.springframework.org/schema/beans/spring-beans-2.5.xsd   
9.             http://www.springframework.org/schema/context   
10.            http://www.springframework.org/schema/context/spring-context-2.5.xsd   
11.            http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd   
12.            http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd"**>**  
13.   
14. **</beans>**

<?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:context="http://www.springframework.org/schema/context"
           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/context
               http://www.springframework.org/schema/context/spring-context-2.5.xsd
               http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-2.5.xsd
               http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-2.5.xsd">
    
    </beans>

**第一步在Spring中配置数据源：**

Xml代码

1.  **<bean** id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close"**>**  
2.      **<property** name="driverClass" value="org.gjt.mm.mysql.Driver"**/>**  
3.      **<property** name="jdbcUrl" value="jdbc:mysql://localhost:3306/itcast?useUnicode=true&characterEncoding=UTF-8"**/>**  
4.      **<property** name="user" value="root"**/>**  
5.      **<property** name="password" value="123456"**/>**  
6.        
7.      **<property** name="initialPoolSize" value="1"**/>**  
8.        
9.      **<property** name="minPoolSize" value="1"**/>**     
10.       
11.     **<property** name="maxPoolSize" value="300"**/>**  
12.       
13.     **<property** name="maxIdleTime" value="60"**/>**    
14.       
15.     **<property** name="acquireIncrement" value="5"**/>**    
16.       
17.     **<property** name="idleConnectionTestPeriod" value="60"**/>**  
18. **</bean>**

**第二步集成进hibernate ：**

Xml代码

1.  **<bean** id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean"**>**  
2.      **<property** name="dataSource" ref="dataSource"**/>**  
3.       **<property** name="mappingResources"**>**  
4.              **<list>**  
5.                **<value>**cn/itcast/bean/buyer.hbm.xml**</value>**  
6.              **</list>**  
7.      **</property>**  
8.       **<property** name="hibernateProperties"**>**  
9.           **<value>**  
10.               hibernate.dialect=org.hibernate.dialect.MySQL5Dialect   
11.               hibernate.hbm2ddl.auto=update  
12.               hibernate.show\_sql=false  
13.               hibernate.format\_sql=false  
14.           **</value>**  
15.      **</property>**  
16. **</bean>**

<bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
    	<property name="dataSource" ref="dataSource"/>
    	 <property name="mappingResources">
    		    <list>
    		      <value>cn/itcast/bean/buyer.hbm.xml</value>
    		    </list>
    	</property>
    	 <property name="hibernateProperties">
    		 <value>
    		      hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
    		      hibernate.hbm2ddl.auto=update
    		      hibernate.show_sql=false
    		      hibernate.format_sql=false
    		  </value>
    	 </property>
    </bean>

**第三步使用Spring容器管理事务服务：**

Xml代码

1.  **<bean** id="txManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager"**>**  
2.      **<property** name="sessionFactory" ref="sessionFactory"**/>**  
3.  **</bean>**  
4.    
5.    
6.  **<tx:annotation-driven** transaction-manager="txManager"**/>**

**配置hibernate实体映射文件buyer.hbm.xml：**

Xml代码

1.  **<?xml** version="1.0" encoding="UTF-8"**?>**  
2.  <!DOCTYPE hibernate-mapping PUBLIC   
3.          "-//Hibernate/Hibernate Mapping DTD 3.0//EN"   
4.          "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd"**>**  
5.  **<hibernate-mapping** package="cn.itcast.bean"**>**  
6.      **<class** name=“Buyer" table=“buyer"**>**  
7.         **<id** name="username" length="20"**/>**  
8.         **<property** name="password" length="20" not-null="true"**/>**  
9.        **<property** name="gender" not-null="true" length="5"**>**  
10.             **<type** name="org.hibernate.type.EnumType"**>**  
11.                 **<param** name="enumClass"**>**cn.itcast.bean.Gender**</param>**  
12.   
13.                 **<param** name="type"**>**12**</param>**  
14.             **</type>**  
15.         **</property>**  
16.     **</class>**  
17. **</hibernate-mapping>**

<?xml version="1.0" encoding="UTF-8"?>
    <!DOCTYPE hibernate-mapping PUBLIC
            "-//Hibernate/Hibernate Mapping DTD 3.0//EN"
            "http://hibernate.sourceforge.net/hibernate-mapping-3.0.dtd">
    <hibernate-mapping package="cn.itcast.bean">
        <class name=“Buyer" table=“buyer">
           <id name="username" length="20"/>
           <property name="password" length="20" not-null="true"/>
          <property name="gender" not-null="true" length="5">
            	<type name="org.hibernate.type.EnumType">
            		<param name="enumClass">cn.itcast.bean.Gender</param>
    
            		<param name="type">12</param>
            	</type>
            </property>
        </class>
    </hibernate-mapping>

**在web容器中使用Listener实例化spring容器和配置struts2**  
!-- 指定spring的配置文件，默认从web根目录寻找配置文件，我们可以通过spring提供的classpath:前缀指定从类路径下寻找 -->

Xml代码

1.  **<context-param>**  
2.     **<param-name>**contextConfigLocation**</param-name>**  
3.     **<param-value>**classpath:beans.xml**</param-value>**  
4.  **</context-param>**  
5.    
6.  **<listener>**  
7.        **<listener-class>**org.springframework.web.context.ContextLoaderListener**</listener-class>**  
8.  **</listener>**

<context-param>
       <param-name>contextConfigLocation</param-name>
       <param-value>classpath:beans.xml</param-value>
    </context-param>
    
    <listener>
          <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

**配置struts2**

Xml代码

1.  **<filter>**  
2.         **<filter-name>**struts2**</filter-name>**  
3.         **<filter-class>**org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter**</filter-class>**  
4.     **</filter>**  
5.     **<filter-mapping>**  
6.         **<filter-name>**struts2**</filter-name>**  
7.         **<url-pattern>**/\***</url-pattern>**  
8.    **</filter-mapping>**

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

**struts2的配置文件模版struts.xml如下。常量struts.objectFactory=spring明确指出将由Spring负责创建Action实例。**

Xml代码

1.  **<?xml** version="1.0" encoding="UTF-8" **?>**  
2.  <!DOCTYPE struts PUBLIC   
3.      "-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"   
4.      "http://struts.apache.org/dtds/struts-2.0.dtd"**>**  
5.  **<struts>**  
6.    
7.      **<constant** name="struts.ui.theme" value="simple" **/>**  
8.      **<constant** name="struts.objectFactory" value="spring" **/>**  
9.      **<package** name="person" namespace="/person" extends="struts-default"**>**  
10.         **<global-results>**  
11.             **<result** name="message"**>**/WEB-INF/page/message.jsp**</result>**  
12.         **</global-results>**  
13.         **<action** name="action\_\*" class="personList" method="\{1\}"**>**  
14.             **<result** name="list"**>**/WEB-INF/page/persons.jsp**</result>**          **</action>**  
15.      **</package>**  
16. **</struts>**

<?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>
    
        <constant name="struts.ui.theme" value="simple" />
        <constant name="struts.objectFactory" value="spring" />
     	<package name="person" namespace="/person" extends="struts-default">
     		<global-results>
     			<result name="message">/WEB-INF/page/message.jsp</result>
     		</global-results>
    		<action name="action_*" class="personList" method="{1}">
    			<result name="list">/WEB-INF/page/persons.jsp</result>			</action>
       	 </package>
    </struts>

<constant name="struts.objectFactory" value="spring" />  
为了能从spring容器中寻找到Action bean，要求action配置的class属性值和spring中bean的名称相同。  
  
**使用spring解决struts2乱码问题。**

Xml代码

1.  **<filter>**  
2.      **<filter-name>**encoding**</filter-name>**  
3.      **<filter-class>**org.springframework.web.filter.CharacterEncodingFilter**</filter-class>**  
4.      **<init-param>**  
5.          **<param-name>**encoding**</param-name>**  
6.          **<param-value>**UTF-8**</param-value>**  
7.      **</init-param>**  
8.  **</filter>**  
9.  **<filter-mapping>**  
10.     **<filter-name>**encoding**</filter-name>**  
11.     **<url-pattern>**/\***</url-pattern>**  
12. **</filter-mapping>**

<filter>
    	<filter-name>encoding</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>encoding</filter-name>
    	<url-pattern>/*</url-pattern>
    </filter-mapping>

**使用spring解决hibernate因session关闭导致的延迟加载例外问题。**

Xml代码

1.  **<filter>**  
2.          **<filter-name>**OpenSessionInViewFilter**</filter-name>**  
3.          **<filter-class>**org.springframework.orm.hibernate3.support.OpenSessionInViewFilter**</filter-class>**  
4.         **<init-param>**  
5.       
6.              **<param-name>**sessionFactoryBeanName**</param-name>**  
7.              **<param-value>**sessionFactory**</param-value>**  
8.        **</init-param>**  
9.  **</filter>**  
10. **<filter-mapping>**  
11.         **<filter-name>**OpenSessionInViewFilter**</filter-name>**  
12.         **<url-pattern>**/\***</url-pattern>**  
13. **</filter-mapping>**

<filter>
            <filter-name>OpenSessionInViewFilter</filter-name>
            <filter-class>org.springframework.orm.hibernate3.support.OpenSessionInViewFilter</filter-class>
           <init-param>
       
                <param-name>sessionFactoryBeanName</param-name>
                <param-value>sessionFactory</param-value>
          </init-param>
    </filter>
    <filter-mapping>
            <filter-name>OpenSessionInViewFilter</filter-name>
            <url-pattern>/*</url-pattern>
    </filter-mapping>

**struts2的标签**  
<%@ page language="java" contentType="text/html; charset=UTF-8"    pageEncoding="UTF-8"%>  
<%@taglib uri="/struts-tags" prefix="s" %>  
  
<s:form action="action\_edit" method="post" namespace="/person">  
<s:hidden name="person.id"/>  
姓名:<s:textfield name="person.name"/><br>  
<input type="submit" value="发送"/>  
</s:form>  
  
<s:iterator value="persons" >  
<s:property value="id"/>, <s:property value="name"/>  
<a href='<s:url action="action\_editUI" namespace="/person"><s:param name="person.id" value="id"/></s:url>'>修改</a>  
</s:iterator>