Spring+Hibernate进行双数据源测试Mysql集群读写分离

进行测试！环境就是SH框架、当然这只是一个简单的测试！

准备环境就是Spring框架跟Hibernate框架的整合！

然后在Spring配置文件中配置两个数据源、这里我采用的是从c3po数据源配置：

注：配置文件中的url里面要加"&"符号的话得这样写"&"

<?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:p="http://www.springframework.org/schema/p"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd"> 
<!-- 读  -->
<!--<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<<  -->
<!-- 定义数据源Bean，使用C3P0数据源实现 -->
<bean id="dataSourceR" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<!-- 指定连接数据库的驱动 -->
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<!-- 指定连接数据库的URL -->
<property name="jdbcUrl" value="jdbc:mysql:loadbalance://10.11.0.75:3306,172.16.0.202:3306/DB_TEST7?roundRobinLoadBalance=true&characterEncoding=UTF-8"/>
<!-- 指定连接数据库的用户名 -->
<property name="user" value="TESTUSER"/>
<!-- 指定连接数据库的密码 -->
<property name="password" value="TESTPWD"/>
<!-- 指定连接数据库连接池的最大连接数 -->
<property name="maxPoolSize" value="20"/>
<!-- 指定连接数据库连接池的最小连接数 -->
<property name="minPoolSize" value="1"/>
<!-- 指定连接数据库连接池的初始化连接数 -->
<property name="initialPoolSize" value="1"/>
<!-- 指定连接数据库连接池的连接的最大空闲时间 -->
<property name="maxIdleTime" value="20"/>
</bean>
<!--定义了Hibernate的SessionFactory -->
<bean id="sessionFactoryR" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSourceR"/>
<property name="mappingResources">
<list>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.jdbc.batch_size">20</prop>
</props>
</property>
</bean>
<bean id="transactionManagerR" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactoryR"/>
</bean>
<bean id="transactionInterceptorR" class="org.springframework.transaction.interceptor.TransactionInterceptor">
<!--  事务拦截器bean需要依赖注入一个事务管理器 -->
<property name="transactionManager" ref="transactionManagerR"/>
<property name="transactionAttributes">
<!--  下面定义事务传播属性-->
<props>
<prop key="get*">PROPAGATION_REQUIRED,readOnly</prop>
<prop key="find*">PROPAGATION_REQUIRED,readOnly</prop>
</props>
</property>
</bean>
<bean id="daoR" class="com.boxun.test.dao.impl.daoR" >
<property name="sessionFactory">
<ref bean="sessionFactoryR" />
</property>
</bean>

<!-- 写   -->
<bean id="dataSourceW" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<!-- 指定连接数据库的驱动 -->
<property name="driverClass" value="com.mysql.jdbc.Driver"/>
<!-- 指定连接数据库的URL -->
<property name="jdbcUrl" value="jdbc:mysql:loadbalance://10.11.2.126:3306/DB_TEST7?roundRobinLoadBalance=true&characterEncoding=UTF-8"/>
<!-- 指定连接数据库的用户名 -->
<property name="user" value="TESTUSER"/>
<!-- 指定连接数据库的密码 -->
<property name="password" value="TESTPWD"/>
<!-- 指定连接数据库连接池的最大连接数 -->
<property name="maxPoolSize" value="20"/>
<!-- 指定连接数据库连接池的最小连接数 -->
<property name="minPoolSize" value="1"/>
<!-- 指定连接数据库连接池的初始化连接数 -->
<property name="initialPoolSize" value="1"/>
<!-- 指定连接数据库连接池的连接的最大空闲时间 -->
<property name="maxIdleTime" value="20"/>
</bean>
<!--定义了Hibernate的SessionFactory -->
<bean id="sessionFactoryW" class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="dataSource" ref="dataSourceW"/>
<property name="mappingResources">
<list>
</list>
</property>
<property name="hibernateProperties">
<props>
<prop key="hibernate.dialect">org.hibernate.dialect.MySQLDialect</prop>
<prop key="show_sql">true</prop>
<prop key="hibernate.hbm2ddl.auto">update</prop>
<prop key="hibernate.jdbc.batch_size">20</prop>
</props>
</property>
</bean>
<bean id="transactionManagerW" class="org.springframework.orm.hibernate3.HibernateTransactionManager">
<property name="sessionFactory" ref="sessionFactoryW"/>
</bean>
<bean id="transactionInterceptorW" class="org.springframework.transaction.interceptor.TransactionInterceptor">
<!--  事务拦截器bean需要依赖注入一个事务管理器 -->
<property name="transactionManager" ref="transactionManagerW"/>
<property name="transactionAttributes">
<!--  下面定义事务传播属性-->
<props>
<prop key="*">PROPAGATION_REQUIRED</prop>
</props>
</property>
</bean>

<bean id="daoW" class="com.boxun.test.dao.impl.daoW" >
<property name="sessionFactory">
<ref bean="sessionFactoryW" />
</property>
</bean>
</beans>

读的Dao：

public class daoR extends HibernateDaoSupport implements IdaoR{
private Query query = null;
public List find(String sql){
query = super.getSession().createSQLQuery(sql);
return query.list();
}
}

写的Dao：

public class daoW extends HibernateDaoSupport implements IdaoW{
private Query query = null;
public void save(String sql){
Transaction t = super.getSession().beginTransaction();
query = super.getSession().createSQLQuery(sql);
query.executeUpdate();
t.commit();
}
}

测试main方法：

public class Test {
public static void main(String[] args) {
ApplicationContext context=new FileSystemXmlApplicationContext("/WebRoot/WEB-INF/classes/applicationContext.xml");
IdaoR daor =(IdaoR) context.getBean("daoR");
IdaoW daow =(IdaoW) context.getBean("daoW");
daow.save("insert into city(sname) values('Spring双数据源')");
List list = daor.find("select * from city where sname = 'Spring双数据源'");
for (int i = 0; i < list.size(); i++) {
Object[] obj = (Object[])list.get(i);
System.out.println(obj[0]+" --- "+obj[1]);
}
}
}

输出：

log4j:WARN No appenders could be found for logger (org.springframework.context.support.FileSystemXmlApplicationContext).
log4j:WARN Please initialize the log4j system properly.
5 --- Spring双数据源

测试成功！！！