spring多数据源配置方式

1、单数据源配置方式

<bean name="zhyDataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="${zhy.url}" />
<property name="username" value="${zhy.username}" />
<property name="password" value="${zhy.password}" />
<property name="filters" value="stat" />
<property name="maxActive" value="20" />
<property name="initialSize" value="1" />
<property name="maxWait" value="60000" />
<property name="minIdle" value="1" />
<property name="timeBetweenEvictionRunsMillis" value="3000" />
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 1 from dual" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="poolPreparedStatements" value="true" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="20" />
</bean>

<bean id="multipleDataSource" class="com.sankai.zhy.util.DynamicDataSource">
<property name="defaultTargetDataSource" ref="zhyDataSource"/>
<property name="targetDataSources">
<map>
<entry key="zhyDataSource" value-ref="zhyDataSource"/>
</map>
</property>

</bean>

<!-- mybatis -->
<bean id="zhySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="multipleDataSource" />
<property name="configLocation"
value="classpath:META-INF/mybatis/mybatis-config.xml" />
<property name="mapperLocations">
<list>
<value>classpath:META-INF/mybatis/mapper/*Mapper.xml</value>
<value>classpath:META-INF/mybatis/ReuseSQL.xml</value>
</list>
</property>
</bean>

<!-- 配置Mybatis模版 -->
<bean id="zhySqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="zhySqlSessionFactory" />
</bean>

<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="zhyDataSource" />
</bean>

<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="insert*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="save*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="update*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="exec*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="delete*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="remove*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="add*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="minus*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<!-- <tx:method name="find*" propagation="REQUIRED" isolation="READ_COMMITTED"
read-only="true" />
<tx:method name="get*" propagation="REQUIRED" isolation="READ_COMMITTED"
read-only="true" /> -->
</tx:attributes>
</tx:advice>

<aop:config>
<aop:pointcut id="txPointcut"
expression="execution(* com.sankai.zhy.service..*.*(..))" />
<aop:advisor pointcut-ref="txPointcut" advice-ref="txAdvice"/>
</aop:config>

<tx:annotation-driven transaction-manager="txManager" />

bd

driver=com.mysql.jdbc.Driver

zhy.url=jdbc:mysql://ip:端口/库名?useUnicode=true&characterEncoding=utf-8&autoReconnect=true&failOverReadOnly=false
zhy.username=账号
zhy.password=密码

然后创建三个类

DynamicDataSource

public class DynamicDataSource extends AbstractRoutingDataSource{

@Override
protected Object determineCurrentLookupKey() {
// TODO Auto-generated method stub
return DataSourceHolder.getDataSource();
}

}

DataSourceHolder

public class DataSourceHolder {
//线程本地环境

private static final ThreadLocal<String> dataSources = new ThreadLocal<String>();

//设置数据源

public static void setDataSource(String customerType) {

dataSources.set(customerType);

}

//获取数据源

public static String getDataSource() {

return (String) dataSources.get();

}

//清除数据源

public static void clearDataSource() {

dataSources.remove();

}
}

DataSource

@Target({ElementType.METHOD,ElementType.TYPE})
@Retention(RetentionPolicy.RUNTIME)
@Documented
public @interface DataSource {
String name() default DataSource.master;
public static String master = "zhyDataSource";
public static String slave1 = "pushDataSource";
}

单数据源配置完毕

下面是多数据源

其他都不变spring-datasource.xml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" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<!-- dataSource -->

<!-- 配置数据源 Druid --> <!-- 这里不需要配置destroy-method，因为bboss持久层在jvm退出时会自动调用数据源的close方法 -->
<bean name="zhyDataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="${zhy.url}" />
<property name="username" value="${zhy.username}" />
<property name="password" value="${zhy.password}" />
<property name="filters" value="stat" />
<property name="maxActive" value="20" />
<property name="initialSize" value="1" />
<property name="maxWait" value="60000" />
<property name="minIdle" value="1" />
<property name="timeBetweenEvictionRunsMillis" value="3000" />
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 1 from dual" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="poolPreparedStatements" value="true" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="20" />
</bean>
<!-- dataSource -->

<!-- dataSource -->
<!-- 配置数据源 Druid --> <!-- 这里不需要配置destroy-method，因为bboss持久层在jvm退出时会自动调用数据源的close方法 -->
<bean name="pushDataSource" class="com.alibaba.druid.pool.DruidDataSource"
init-method="init" destroy-method="close">
<property name="driverClassName" value="com.mysql.jdbc.Driver" />
<property name="url" value="${push.zhy.url}" />
<property name="username" value="${push.zhy.username}" />
<property name="password" value="${push.zhy.password}" />
<property name="filters" value="stat" />
<property name="maxActive" value="20" />
<property name="initialSize" value="1" />
<property name="maxWait" value="60000" />
<property name="minIdle" value="1" />
<property name="timeBetweenEvictionRunsMillis" value="3000" />
<property name="minEvictableIdleTimeMillis" value="300000" />
<property name="validationQuery" value="SELECT 1 from dual" />
<property name="testWhileIdle" value="true" />
<property name="testOnBorrow" value="false" />
<property name="testOnReturn" value="false" />
<property name="poolPreparedStatements" value="true" />
<property name="maxPoolPreparedStatementPerConnectionSize"
value="20" />
</bean>
<!-- dataSource -->

<bean id="multipleDataSource" class="com.sankai.zhy.util.DynamicDataSource">
<property name="defaultTargetDataSource" ref="zhyDataSource"/>
<property name="targetDataSources">
<map>
<entry key="zhyDataSource" value-ref="zhyDataSource"/>
<entry key="pushDataSource" value-ref="pushDataSource"/>
</map>
</property>

</bean>
<!-- mybatis -->
<bean id="zhySqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="multipleDataSource" />
<property name="configLocation"
value="classpath:META-INF/mybatis/mybatis-config.xml" />
<property name="mapperLocations">
<list>
<value>classpath:META-INF/mybatis/mapper/*Mapper.xml</value>
<value>classpath:META-INF/mybatis/ReuseSQL.xml</value>
</list>
</property>
</bean>

<!-- 配置Mybatis模版 -->
<bean id="zhySqlSessionTemplate" class="org.mybatis.spring.SqlSessionTemplate">
<constructor-arg index="0" ref="zhySqlSessionFactory" />
</bean>

<bean id="txManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="zhyDataSource" />
</bean>

<tx:advice id="txAdvice" transaction-manager="txManager">
<tx:attributes>
<tx:method name="insert*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="save*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="update*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="exec*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="delete*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="remove*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="add*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<tx:method name="minus*" propagation="REQUIRED" isolation="READ_COMMITTED" />
<!-- <tx:method name="find*" propagation="REQUIRED" isolation="READ_COMMITTED"
read-only="true" />
<tx:method name="get*" propagation="REQUIRED" isolation="READ_COMMITTED"
read-only="true" /> -->
</tx:attributes>
</tx:advice>

<aop:config>
<aop:pointcut id="txPointcut"
expression="execution(* com.sankai.zhy.service..*.*(..))" />
<aop:advisor pointcut-ref="txPointcut" advice-ref="txAdvice"/>
</aop:config>

<tx:annotation-driven transaction-manager="txManager" />
<!-- <bean id="favouriteDao" class="org.mybatis.spring.mapper.MapperFactoryBean">
<property name="mapperInterface" value="com.sankai.zhy.dao.FavouriteDao"/>
<property name="sqlSessionFactory" ref="zhySqlSessionFactory"/> </bean> <bean
id="articleDao" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property
name="mapperInterface" value="com.sankai.zhy.dao.ArticleDao"/> <property
name="sqlSessionFactory" ref="cmsSqlSessionFactory"/> </bean> -->
</beans>