添加夹包 c3p0-0.9.5.jar mchange-commons-java-0.2.8.jar
结构：
根绝结构 不同 注入数据源
db-config.properties
one.jdbc.driverClass=com.mysql.jdbc.Driver one.jdbc.url=jdbc:mysql://localhost:3306/fusionweb?useUnicode=true&characterEncoding=utf-8 one.jdbc.user=root one.jdbc.password=root one.jdbc.initialPoolSize=5 one.jdbc.minPoolSize=5 one.jdbc.maxPoolSize=20 one.jdbc.checkoutTimeout=20000 one.jdbc.idleConnectionTestPeriod=120 one.jdbc.maxIdleTime=60 one.jdbc.maxStatements=100 one.jdbc.testConnectionOnCheckout=false two.jdbc.driverClass=com.mysql.jdbc.Driver two.jdbc.url=jdbc:mysql://localhost:3306/self_help?useUnicode=true&characterEncoding=utf-8 two.jdbc.user=root two.jdbc.password=root two.jdbc.initialPoolSize=5 two.jdbc.minPoolSize=5 two.jdbc.maxPoolSize=20 two.jdbc.checkoutTimeout=20000 two.jdbc.idleConnectionTestPeriod=120 two.jdbc.maxIdleTime=60 two.jdbc.maxStatements=100 two.jdbc.testConnectionOnCheckout=false three.jdbc.driverClass=com.mysql.jdbc.Driver three.jdbc.url=jdbc:mysql://localhost:3306/fusion_prob?useUnicode=true&characterEncoding=utf-8 three.jdbc.user=root three.jdbc.password=root three.jdbc.initialPoolSize=5 three.jdbc.minPoolSize=5 three.jdbc.maxPoolSize=20 three.jdbc.checkoutTimeout=20000 three.jdbc.idleConnectionTestPeriod=120 three.jdbc.maxIdleTime=60 three.jdbc.maxStatements=100 three.jdbc.testConnectionOnCheckout=false
<?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:aop="http://www.springframework.org/schema/aop"
xmlns:cache="http://www.springframework.org/schema/cache"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:jdbc="http://www.springframework.org/schema/jdbc" xmlns:jee="http://www.springframework.org/schema/jee"
xmlns:jms="http://www.springframework.org/schema/jms" xmlns:lang="http://www.springframework.org/schema/lang"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:oxm="http://www.springframework.org/schema/oxm"
xmlns:p="http://www.springframework.org/schema/p" xmlns:task="http://www.springframework.org/schema/task"
xmlns:tx="http://www.springframework.org/schema/tx" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.1.xsd
http://www.springframework.org/schema/cache http://www.springframework.org/schema/cache/spring-cache-3.1.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-3.1.xsd
http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-3.1.xsd
http://www.springframework.org/schema/jms http://www.springframework.org/schema/jms/spring-jms-3.1.xsd
http://www.springframework.org/schema/lang http://www.springframework.org/schema/lang/spring-lang-3.1.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.1.xsd
http://www.springframework.org/schema/oxm http://www.springframework.org/schema/oxm/spring-oxm-3.1.xsd
http://www.springframework.org/schema/task http://www.springframework.org/schema/task/spring-task-3.1.xsd
http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.1.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.1.xsd"
>
<context:annotation-config />
<aop:aspectj-autoproxy />
<context:component-scan base-package="com">
<context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<bean class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="locations">
<list>
<value>classpath:db-config.properties</value>
</list>
</property>
</bean>
<bean id="dataSourceOne" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${one.jdbc.driverClass}" />
<property name="jdbcUrl" value="${one.jdbc.url}" />
<property name="user" value="${one.jdbc.user}" />
<property name="password" value="${one.jdbc.password}" />
<property name="initialPoolSize" value="${one.jdbc.initialPoolSize}" />
<property name="minPoolSize" value="${one.jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${one.jdbc.maxPoolSize}" />
<property name="checkoutTimeout" value="${one.jdbc.checkoutTimeout}" />
<property name="idleConnectionTestPeriod" value="${one.jdbc.idleConnectionTestPeriod}" />
<property name="maxIdleTime" value="${one.jdbc.maxIdleTime}" />
<property name="maxStatements" value="${one.jdbc.maxStatements}" />
<property name="testConnectionOnCheckout" value="${one.jdbc.testConnectionOnCheckout}" />
</bean>
<bean id="dataSourceTwo" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${two.jdbc.driverClass}" />
<property name="jdbcUrl" value="${two.jdbc.url}" />
<property name="user" value="${two.jdbc.user}" />
<property name="password" value="${two.jdbc.password}" />
<property name="initialPoolSize" value="${two.jdbc.initialPoolSize}" />
<property name="minPoolSize" value="${two.jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${two.jdbc.maxPoolSize}" />
<property name="checkoutTimeout" value="${two.jdbc.checkoutTimeout}" />
<property name="idleConnectionTestPeriod" value="${two.jdbc.idleConnectionTestPeriod}" />
<property name="maxIdleTime" value="${two.jdbc.maxIdleTime}" />
<property name="maxStatements" value="${two.jdbc.maxStatements}" />
<property name="testConnectionOnCheckout" value="${two.jdbc.testConnectionOnCheckout}" />
</bean>
<bean id="dataSourceThree" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass" value="${three.jdbc.driverClass}" />
<property name="jdbcUrl" value="${three.jdbc.url}" />
<property name="user" value="${three.jdbc.user}" />
<property name="password" value="${three.jdbc.password}" />
<property name="initialPoolSize" value="${three.jdbc.initialPoolSize}" />
<property name="minPoolSize" value="${three.jdbc.minPoolSize}" />
<property name="maxPoolSize" value="${three.jdbc.maxPoolSize}" />
<property name="checkoutTimeout" value="${three.jdbc.checkoutTimeout}" />
<property name="idleConnectionTestPeriod" value="${three.jdbc.idleConnectionTestPeriod}" />
<property name="maxIdleTime" value="${three.jdbc.maxIdleTime}" />
<property name="maxStatements" value="${three.jdbc.maxStatements}" />
<property name="testConnectionOnCheckout" value="${three.jdbc.testConnectionOnCheckout}" />
</bean>
<bean id="dataSourceInterceptor" class="com.commons.dynamictasource.DataSourceInterceptor" />
<aop:config>
<aop:aspect id="dataSourceAspect" ref="dataSourceInterceptor">
<aop:pointcut id="daoOne" expression="execution(* com.onweb.*.*(..))" />
<aop:pointcut id="daoTwo" expression="execution(* com.twoweb.*.*(..))" />
<aop:pointcut id="daoThree" expression="execution(* com.threeweb.*.*(..))" />
<aop:before pointcut-ref="daoOne" method="setdataSourceOne" />
<aop:before pointcut-ref="daoTwo" method="setdataSourceTwo" />
<aop:before pointcut-ref="daoThree" method="setdataSourceThree" />
</aop:aspect>
</aop:config>
<bean id="dataSource" class="com.commons.dynamictasource.DynamicDataSource">
<property name="targetDataSources">
<map key-type="java.lang.String">
<entry value-ref="dataSourceOne" key="dataSourceOne"></entry>
<entry value-ref="dataSourceTwo" key="dataSourceTwo"></entry>
<entry value-ref="dataSourceThree" key="dataSourceThree"></entry>
</map>
</property>
<property name="defaultTargetDataSource" ref="dataSourceOne">
</property>
</bean>
</beans>
package com.commons.dynamictasource;
public class DatabaseContextHolder {
private static final ThreadLocal<String> contextHolder = new ThreadLocal<String>();
public static void setCustomerType(String customerType) {
contextHolder.set(customerType);
}
public static String getCustomerType() {
return contextHolder.get();
}
public static void clearCustomerType() {
contextHolder.remove();
}
}
package com.commons.dynamictasource;
import org.aspectj.lang.JoinPoint;
import org.springframework.stereotype.Component;
@Component
public class DataSourceInterceptor {
public void setdataSourceOne(JoinPoint jp) {
DatabaseContextHolder.setCustomerType("dataSourceOne");
}
public void setdataSourceTwo(JoinPoint jp) {
DatabaseContextHolder.setCustomerType("dataSourceTwo");
}
public void setdataSourceThree(JoinPoint jp) {
DatabaseContextHolder.setCustomerType("dataSourceThree");
}
}
package com.commons.dynamictasource;
import java.sql.SQLFeatureNotSupportedException;
import java.util.logging.Logger;
import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
public class DynamicDataSource extends AbstractRoutingDataSource{
@Override
protected Object determineCurrentLookupKey() {
return DatabaseContextHolder.getCustomerType();
}
@Override
public Logger getParentLogger() throws SQLFeatureNotSupportedException {
return null;
}
}
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