spring的事物配置方式

時間 2019-11-12

原文原文鏈接

根據代理機制不一樣，有如下幾種配置方式：(推薦使用第四種方式，作spring的事物)java

首先定義一個接口和實現類，並在此基礎上進行配置---spring

Java代碼 express

public interface IUserDao {  
 public void insertUser(UserTable user);  
}

Java代碼 session

public class UserDaoImpl extends HibernateDaoSupport implements IUserDao{  
    public void insertUser(UserTable user) {  
        getHibernateTemplate().saveOrUpdate(user);  
    }  
}

第一種：每一個bean設置一個代理，這種是根據具體需求來定，如要對具體到每一個交易進行事務操做的話，這個方式是最合適的

spa

<beans>  
    <!-- sessionFactory至關於spring datasource -->  
    <bean id="sessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
        <property name="configLocation" value="classpath:hibernate.cfg.xml" />    
        <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  
    </bean>    
    <!-- 定義事務管理器（聲明式的事務） -->    
    <bean id="transactionManager"  
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
      
    <!-- 配置DAO -->  
    <bean id="userDao" class="org.lgh.spring.transaction2.UserDaoImpl">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
    <!-- 每一個bean都有一個代理 <property name="target" ref="userDaoTarget" />  -->  
    <bean id="userDaoProxy"    
        class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean">    
           <!-- 配置事務管理器 -->    
           <property name="transactionManager" ref="transactionManager" />       
        <property name="target" ref="userDao" />    
         <property name="proxyInterfaces" value="org.lgh.spring.transaction2.IUserDao" />  
        <!-- 配置事務屬性 -->    
        <property name="transactionAttributes">    
            <props>    
                <prop key="*">PROPAGATION_REQUIRED</prop>  
            </props>    
        </property>    
    </bean>    
</beans>

第二種：全部的bean共享一個代理

<!-- 全部的bean共享一個代理-->  
<beans>  
    <bean id="sessionFactory"    
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
        <property name="configLocation" value="classpath:hibernate.cfg.xml" />    
        <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  
    </bean>    
    <!-- 定義事務管理器（聲明式的事務） -->    
    <bean id="transactionManager"  
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
    <!-- 全部的bean共享一個代理/>  -->  
    <bean id="transactionBase"    
            class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"    
            lazy-init="true" abstract="true">    
        <!-- 配置事務管理器 -->    
        <property name="transactionManager" ref="transactionManager" />    
        <!-- 配置事務屬性 -->    
        <property name="transactionAttributes">    
            <props>    
                <prop key="*">PROPAGATION_REQUIRED</prop>    
            </props>    
        </property>    
    </bean>      
    <!-- 配置DAO -->  
    <bean id="userDao" class="org.lgh.spring.transaction3.UserDaoImpl">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
     <!-- 全部的bean共享一個代理/>  -->  
    <bean id="userDaoProxy" parent="transactionBase" >    
        <property name="target" ref="userDao" />     
    </bean>  
</beans>

第三種：使用攔截器來配置你的事務，這個主要是進行一些方法調用先後進行一些其餘事件的處理，如進行權限檢查等...

<!-- 使用攔截器 -->  
  
<beans>  
    <bean id="sessionFactory"    
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
        <property name="configLocation" value="classpath:hibernate.cfg.xml" />    
        <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  
    </bean>    
    <!-- 定義事務管理器（聲明式的事務） -->    
    <bean id="transactionManager"  
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>   
    <bean id="transactionInterceptor"    
        class="org.springframework.transaction.interceptor.TransactionInterceptor">    
        <property name="transactionManager" ref="transactionManager" />    
        <!-- 配置事務屬性 -->    
        <property name="transactionAttributes">    
            <props>    
                <prop key="*">PROPAGATION_REQUIRED</prop>    
            </props>    
        </property>    
    </bean>  
    <bean name="logger" class="org.lgh.spring.transaction4.SpringAOPInterceptor">  
    </bean>  
    <bean id="logBeforeAdvice" class="com.spring.advices.LogBeforeAdvice">  
    </bean>  
    <!-- 定義BeanNameAutoProxyCreator,該bean是個bean後處理器，無需被引用，所以沒有id屬性     
    這個bean後處理器，根據事務攔截器爲目標bean自動建立事務代理    -->  
    <bean class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">    
        <!-- 加上此句就不會拋出 $Proxy cannot be cast的異常啦-->  
        <property name="proxyTargetClass">  
              <value>true</value>  
        </property>    
        <property name="beanNames">    
            <list>    
            <!-- *Dao對應下面的userDao要對它進行攔截-->  
                <value>userDao</value>  
            </list>    
        </property>    
        <property name="interceptorNames">    
            <list>    
                <value>transactionInterceptor</value>    
                <value>logBeforeAdvice</value>  
            </list>    
        </property>    
    </bean>    
    <!-- 配置DAO -->  
    <bean id="userDao" class="org.lgh.spring.transaction4.UserDaoImpl">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
    <!-- 服務層 service-->  
     <bean id="userService" class="org.lgh.spring.transaction4.UserServiceImpl">  
        <property name="userDao" ref="userDao" />  
    </bean>  
</beans>

第四種：使用aop:config配置方式

<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">  
 <context:annotation-config />  
    <context:component-scan base-package="org.lgh.spring.transaction5" />  
    <bean id="sessionFactory"    
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
        <property name="configLocation" value="classpath:hibernate.cfg.xml" />    
        <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  
    </bean>    
    <!-- 定義事務管理器（聲明式的事務） -->    
    <bean id="transactionManager"  
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
    <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="add*" propagation="REQUIRED" />
<tx:method name="*" propagation="REQUIRED" />  
</tx:attributes>  
    </tx:advice>  
    <aop:config   proxy-target-class="true" >  
        <aop:pointcut id="interceptorPointCuts"  
            expression="execution(* org.lgh.spring.transaction5.*.*(..))" />  
        <aop:advisor advice-ref="txAdvice"  
            pointcut-ref="interceptorPointCuts" />          
    </aop:config>       
    <!-- 配置DAO -->  
    <bean id="userDao" class="org.lgh.spring.transaction5.UserDaoImpl">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
</beans>

execution(* org.lgh.spring.transaction5.*.*(..))中：hibernate

第一個 * —— 通配任意返回值類型|代理

|第二個 * —— 通配包org.lgh.spring.transaction5下的任意class|code

|第三個 * —— 通配包org.lgh.spring.transaction5下的任意class的任意方法|component

|第四個 .. —— 通配方法能夠有0個或多個參數|orm

第五種：註解方式：

<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">  
 <context:annotation-config />  
    <context:component-scan base-package="org.lgh.spring.transaction6" />  
    <tx:annotation-driven proxy-target-class ="true" transaction-manager="transactionManager"/>   
    <bean id="sessionFactory"    
            class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
        <property name="configLocation" value="classpath:hibernate.cfg.xml" />    
        <property name="configurationClass" value="org.hibernate.cfg.AnnotationConfiguration" />  
    </bean>    
    <!-- 定義事務管理器（聲明式的事務） -->    
    <bean id="transactionManager"  
        class="org.springframework.orm.hibernate3.HibernateTransactionManager">  
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
    <!-- 配置DAO -->  
    <bean id="userDao" class="org.lgh.spring.transaction6.UserDaoImpl">  
          
        <property name="sessionFactory" ref="sessionFactory" />  
    </bean>  
      
</beans>