Spring采取properties配置多个数据库

Spring采用properties配置多个数据库
比如在一个项目中有这样的需求:上海和武汉采用不同的系统，每个系统都有自己的数据库，但是在上海的系统需要访问武汉的数据库，这就要在项目中配置两个数据源，下面是我给的SSH采用properties配置数据源的方法。

1.要有两个properties文件
第一个文件是本地数据库文件dataResources.properties

ConnectString=jdbc:mysql://192.168.1.110:3306/tplis?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=trueUserID=rootPassword=rootJdbcDriverName=com.mysql.jdbc.Driver

第二个文件是武汉数据库文件wuhanDataResources.properties

wuhan.ConnectString=jdbc:mysql://localhost:3306/tplis?useUnicode=true&characterEncoding=utf-8&zeroDateTimeBehavior=convertToNull&transformedBitIsBoolean=truewuhan.UserID=rootwuhan.Password=rootwuhan.JdbcDriverName=com.mysql.jdbc.Driver

2.配置dataSource
在applicationContext-database.xml文件中

<?xml version="1.0" encoding="UTF-8"?><beans xmlns="http://www.springframework.org/schema/beans"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"  xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-2.5.xsd"><bean id="propertyConfigurer"    /></property></bean><bean id="txProxyTemplate" abstract="true"/></property><property name="transactionAttributes"><props><prop key="*">PROPAGATION_REQUIRED</prop></props></property></bean><bean id="wuhanDataSource"    name="code"><bean id="sessionFactory"    /></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>        <!-- bu -->        <value>net/bolue/bu/vo/BlBuDriver.hbm.xml</value>        <value>net/bolue/basic/vo/BlBasicUser.hbm.xml</value>      </list>    </property>  </bean>

<bean id="wuhanSessionFactory"    /></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>        <!-- bu -->        <value>net/bolue/bu/vo/BlBuDriver.hbm.xml</value>        <value>net/bolue/basic/vo/BlBasicUser.hbm.xml</value>      </list>    </property>  </bean>

4.在DAO中注入sessionFactory

<bean id="blBuDriverService" parent="txProxyTemplate">    <property name="target">      <bean /></property>        <property name="blBuTransDAO"><ref bean="blBuTransDAO" /></property>        <property name="wuhanBlBuDriverDAO"><ref bean="wuhanBlBuDriverDAO" /></property>      </bean>    </property>  </bean>

<bean id="blBuCustrelateService" parent="txProxyTemplate">    <property name="target">      <bean /></property>      </bean>    </property>  </bean>

5.在service中使用两个不同的DAO

private BlBuDriverDAO blBuDriverDAO;private BlBuDriverDAO wuhanBlBuDriverDAO;

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