spring，mybatis，多数据源配置

Posted 2020-08-03

spring.xml配置

    <!-- 对数据源进行事务管理 -->
    <bean id="transactionManager"
        class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="multipleDataSource"></property>
    </bean>

 

spring-datasource.xml配置

<?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-4.0.xsd">

    <!-- alibaba dataSource -->
    <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="maxActive" value="${jdbc.pool.maxActive}" />
        <property name="maxIdle" value="${jdbc.pool.maxIdle}" />
        <property name="minIdle" value="${jdbc.pool.minIdle}" />
    </bean>
    
    <bean id="dataSource_1" class="com.alibaba.druid.pool.DruidDataSource"
        init-method="init" destroy-method="close">
        <property name="driverClassName" value="${jdbc.driverClassName}" />
        <property name="url" value="${jdbc.url1}" />
        <property name="username" value="${jdbc.username}" />
        <property name="password" value="${jdbc.password}" />
        <property name="maxActive" value="${jdbc.pool.maxActive}" />
        <property name="maxIdle" value="${jdbc.pool.maxIdle}" />
        <property name="minIdle" value="${jdbc.pool.minIdle}" />
    </bean>
    
     <bean id="multipleDataSource" class="cn.tomcat.quickstart.common.utils.MultipleDataSource">
        <property name="defaultTargetDataSource" ref="dataSource"/>
        <property name="targetDataSources">
            <map>
                <entry key="dataSource_1" value-ref="dataSource_1"/>
            </map>
        </property>
    </bean>
</beans>

jdbc.properties

#mysql
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/quickstart?useUnicode=true&characterEncoding=utf-8
jdbc.username=root
jdbc.password=password
jdbc.pool.maxActive=50
jdbc.pool.maxIdle=10
jdbc.pool.minIdle=0

jdbc.url1=jdbc:mysql://localhost:3306/quickstart1?useUnicode=true&characterEncoding=utf-8

MultipleDataSource.java

package cn.tomcat.quickstart.common.utils;

import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;

public class MultipleDataSource extends AbstractRoutingDataSource {
    private static final ThreadLocal<String> dataSourceKey = new InheritableThreadLocal<String>();

    public static void setDataSourceKey(String dataSource) {
        dataSourceKey.set(dataSource);
    }

    @Override
    protected Object determineCurrentLookupKey() {
        //System.out.println(dataSourceKey.get());
        
        return dataSourceKey.get();
    }

}

默认的是datasource数据源，需要切换的时候，

MultipleDataSource.setDataSourceKe("dataSource_1")即可!!!