ssh配置多个数据源

SSH配置多个数据源

1. 编写hibernate的数据库配置文





Mysql_hibernate.cfg.xml代码 
1.<?xml version='1.0' encoding='UTF-8'?> 
2.<!DOCTYPE hibernate-configuration PUBLIC 
3.          "-//Hibernate/Hibernate Configuration DTD 3.0//EN"          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
4.                   
5.<hibernate-configuration> 
6.    <session-factory> 
7.        <property name="show_sql">true</property> 
8.        <property name="connection.driver_class">com.mysql.jdbc.Driver</property> 
9.        <property name="connection.url">jdbc:mysql://172.16.11.9:3306/mytest?useUnicode=true&amp;characterEncoding=utf-8</property> 
10.        <property name="connection.username">root</property> 
11.        <property name="connection.password">rootroot</property> 
12.         
13.        <property name="hibernate.c3p0.max_size">20</property> 
14.        <property name="hibernate.c3p0.min_size">1</property> 
15.        <property name="hibernate.c3p0.timeout">5000</property> 
16.        <property name="hibernate.c3p0.max_statements">100</property> 
17.        <property name="hibernate.c3p0.idle_test_period">3000</property> 
18.        <property name="hibernate.c3p0.acquire_increment">2</property> 
19.        <!--  
20.        <property name="dialect">org.hibernate.dialect.MySQLDialect</property> 
21.         --> 
22.        <property name="dialect">org.hibernate.dialect.MySQLInnoDBDialect</property> 
23.        <property name="hbm2ddl.auto">create</property> 
24.         
25.        <property name="hibernate.current_session_context_class">thread</property> 
26.         
27.          
28.        <mapping resource="com/test/bean/User.hbm.xml"/> 
29.    </session-factory> 
30.</hibernate-configuration> 





Sqlserver_hibernate.cfg.xml代码 
1.<?xml version='1.0' encoding='UTF-8'?> 
2.<!DOCTYPE hibernate-configuration PUBLIC 
3.          "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
4.          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
5.                   
6.<hibernate-configuration> 
7.    <session-factory> 
8.    <property name="connection.driver_class">com.microsoft.jdbc.sqlserver.SQLServerDriver</property> 
9.    <property name="connection.url">jdbc:microsoft:sqlserver://172.16.11.20:1433;DatabaseName=new_cmcc;SelectMethod=cursor</property> 
10.    <property name="connection.username">sa</property> 
11.    <property name="connection.password">111</property> 
12.    <property name="connection.pool_size">100</property> 
13.    <property name="show_sql">true</property> 
14.    <property name="dialect">org.hibernate.dialect.SQLServerDialect</property> 
15.     
16.    <mapping resource="com/test/bean/User.hbm.xml"/> 
17.    </session-factory> 
18.</hibernate-configuration> 





Oracle_hibernate.cfg.xml代码 
1.<?xml version='1.0' encoding='UTF-8'?> 
2.<!DOCTYPE hibernate-configuration PUBLIC 
3.          "-//Hibernate/Hibernate Configuration DTD 3.0//EN" 
4.          "http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd"> 
5.                   
6.<hibernate-configuration> 
7.    <session-factory> 
8.    <property name="dialect">org.hibernate.dialect.Oracle9Dialect</property> 
9.        <property name="connection.url">jdbc:oracle:thin:@172.16.11.14:1521:epip</property> 
10.        <property name="connection.username">capitel</property> 
11.        <property name="connection.password">123456</property> 
12.        <property name="connection.driver_class">oracle.jdbc.driver.OracleDriver</property> 
13.        <property name="show_sql">false</property> 
14.         
15.        <mapping resource="com/test/bean/User.hbm.xml"/> 
16.    </session-factory> 
17.</hibernate-configuration> 





2.   在spring配置文件(applicationContext.xml)中配置Hibernate数据源(以测试过的三个数据库oralce,mysql,server sql为例)







Applicationcontext.xml代码 
1.<!-- My Sql  --> 
2.<bean id="mySqlSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
3.    <property name="configLocation">    
4.      <value>WEB-INF/classes/mysql_hibernate.cfg.xml</value>    
5.    </property>    
6.</bean>    
7.<bean id="mySqlTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">    
8.    <property name="sessionFactory">    
9.      <ref local="mySqlSessionFactory" />    
10.    </property>    
11.</bean>   
12. 
13.<!-- SQL Server  --> 
14.<bean id="sqlServerSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
15.    <property name="configLocation">    
16.      <value>WEB-INF/classes/sqlserver_hibernate.cfg.xml</value>    
17.    </property>    
18.</bean>    
19.<bean id="sqlServerTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">    
20.    <property name="sessionFactory">    
21.      <ref local="sqlServerSessionFactory" />    
22.    </property>    
23.</bean>  
24. 
25.<!-- Oracle  --> 
26.<bean id="oracleSessionFactory" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">    
27.    <property name="configLocation">    
28.      <value>WEB-INF/classes/oracle_hibernate.cfg.xml</value>    
29.    </property>    
30.</bean>    
31.<bean id="oracleTransactionManager" class="org.springframework.orm.hibernate3.HibernateTransactionManager">    
32.    <property name="sessionFactory">    
33.      <ref local="oracleSessionFactory" />    
34.    </property>    
35.</bean> 







3. 在spring配置文件(applicationContext.xml)中配置spring的事务拦截器(AOP):







Applicationcontext.xml代码 
1.<!--1、mysql数据源 事务管理拦截器-->   
2.    <tx:advice id="mySqlTxAdvice" transaction-manager="mySqlTransactionManager">    
3.    <tx:attributes>    
4.        <tx:method name="find*" read-only="true"/>    
5.        <tx:method name="get*" read-only="true"/>      
6.        <tx:method name="notx*" propagation="NEVER"/>    
7.        <tx:method name="*" rollback-for="自定义Exception"/>    
8.    </tx:attributes>    
9.    </tx:advice>    
10.<!--2、sqlserver数据源 事务管理拦截器 -->   
11.    <tx:advice id="sqlServerTxAdvice" transaction-manager="sqlServerTransactionManager">    
12.    <tx:attributes>    
13.        <tx:method name="find*" read-only="true"/>    
14.        <tx:method name="get*" read-only="true"/>      
15.        <tx:method name="notx*" propagation="NEVER"/>    
16.        <tx:method name="*" rollback-for="自定义Exception"/>    
17.    </tx:attributes>    
18.    </tx:advice> 
19.     
20.<!--3、oracle数据源 事务管理拦截器-->    
21.    <tx:advice id="oracleTxAdvice" transaction-manager="oracleTransactionManager">    
22.    <tx:attributes>    
23.        <tx:method name="find*" read-only="true"/>    
24.        <tx:method name="get*" read-only="true"/>      
25.        <tx:method name="notx*" propagation="NEVER"/>    
26.        <tx:method name="*" rollback-for="自定义Exception"/>    
27.    </tx:attributes>    
28.    </tx:advice>    
29.        
30.<!--配置多数据源的事务拦截器-->    
31.    <bean id="serviceAutoProxyCreator" class="org.springframework.aop.framework.autoproxy.BeanNameAutoProxyCreator">    
32.       <property name="beanNames">    
33.            <list>    
34.                <value>*Service</value>    
35.            </list>    
36.        </property>    
37.        <property name="interceptorNames">    
38.            <list>    
39.                <value>mySqlTxAdvice</value> 
40.                <value>sqlServerTxAdvice</value> 
41.                <value>oracleTxAdvice</value>     
42.            </list>    
43.        </property>    
44.</bean> 







4. DAO需要使用哪个数据,就配置相应的sessionFactory,如:









Java代码 
1. <bean id="userDao" class="com.test.dao.impl.UserDAOImpl" scope="singleton"> 
2.    <property name="sessionFactory"> 
3.        <ref bean="oracleSessionFactory"/> 
4.    </property> 
5.</bean> 
6. 
7.<bean id="emplyDAO" class=" com.test.dao.dao.impl.Pb_EmplyDAOImpl" scope="singleton"> 
8.    <property name="sessionFactory"> 
9.        <ref bean="mySqlSessionFactory"/> 
10.    </property> 
11.</bean>