Druid多数据源配置

太过爱你忘了你带给我的痛 2022-06-05 23:42 224阅读 0赞

原文链接：http://blog.csdn.net/u010310183/article/details/52884909

<?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:jdbc="http://www.springframework.org/schema/jdbc"
         xmlns:context="http://www.springframework.org/schema/context"
         xmlns:aop="http://www.springframework.org/schema/aop"
         xsi:schemaLocation="
         http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd
         http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd
         http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.0.xsd
         http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.0.xsd
         http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd">
    
    	
    	
    	<context:property-placeholder location="classpath:default.properties" />
    	     
        <bean name="datasource" class="com.alibaba.druid.pool.DruidDataSource"  
            init-method="init" destroy-method="close">  
              
            <property name="url" value="${jdbc.url}"></property>  
            <property name="username" value="${jdbc.username}" />  
            <property name="password" value="${jdbc.password}" />  
        </bean>  
      
          
        <bean name="datasource1" class="com.alibaba.druid.pool.DruidDataSource"  
            init-method="init" destroy-method="close">  
              
            <property name="url" value="${jdbc.url1}"></property>  
            <property name="username" value="${jdbc.username1}" />  
            <property name="password" value="${jdbc.password1}" />  
        </bean>  
      
        <bean id="multipleDataSource" class="com.cn.util.MultipleDataSource">  
            <property name="defaultTargetDataSource" ref="datasource"/>  
            <property name="targetDataSources">  
                <map>  
                    <entry key="datasource" value-ref="datasource"/>  
                    <entry key="datasource1" value-ref="datasource1"/>  
                </map>  
            </property>  
        </bean>  
     	
     	<bean id="logFilter" class="com.alibaba.druid.filter.logging.Slf4jLogFilter"> 
      <property name="statementExecutableSqlLogEnable" value="false" /> 
     </bean>
    
        
        <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
            <property name="dataSource" ref="multipleDataSource" />
        </bean>
        
        
            
        <context:component-scan base-package="com.cn.service" />
        
    	<tx:annotation-driven transaction-manager="transactionManager"/>
        
        <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
            <property name="dataSource" ref="multipleDataSource" />
            <property name="configLocation" value="classpath:mybatis-config-default.xml"></property>
            <property name="typeAliasesPackage" value="com.cn.model"/>
        </bean>
        
        <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
            <property name="basePackage" value="com.cn.dao" />
        </bean>
        
          
    	<bean id ="taskExecutor"  class ="org.springframework.scheduling.concurrent.ThreadPoolTaskExecutor" >  
    	      
    		<property name ="corePoolSize" value ="5" />  
    	      
    		<property name ="keepAliveSeconds" value ="30000" />  
    	      
    		<property name ="maxPoolSize" value ="1000" />  
    	      
    		<property name ="queueCapacity" value ="200" />  
    	</bean>
    </beans>

增加MultipleDataSource类(保证spring能扫描到)

package com.service.manager.util;
    
    
    import org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;
    
    public class MultipleDataSource extends AbstractRoutingDataSource {
    	
    	public static final String datasource = "datasource";
    	public static final String datasource1 = "datasource1";
    	
    	private static final ThreadLocal<String> dataSourceKey = new InheritableThreadLocal<String>();
    
        public static void setDataSourceKey(String dataSource) {
            dataSourceKey.set(dataSource);
        }
    
    	@Override
    	protected Object determineCurrentLookupKey() {
    		// TODO Auto-generated method stub
    		return dataSourceKey.get();
    	}
    
    }

增加配置文件:

jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://localhost:3306/test?useUnicode=true&characterEncoding=utf-8&autoreconnect=true&zeroDateTimeBehavior=convertToNull
    jdbc.username=root
    jdbc.password=
    
    jdbc.driver1=com.mysql.jdbc.Driver
    jdbc.url1=jdbc:mysql://localhost:3306/test1?useUnicode=true&characterEncoding=utf-8&autoreconnect=true&zeroDateTimeBehavior=convertToNull
    jdbc.username1=root
    jdbc.password1=

Controller切换数据源:

MultipleDataSource.setDataSourceKey(MultipleDataSource.datasource);