{"id":2021,"date":"2017-10-13T17:06:44","date_gmt":"2017-10-13T12:18:16","guid":{"rendered":"http:\/\/www.xttblog.com\/?p=2021"},"modified":"2017-10-13T17:10:31","modified_gmt":"2017-10-13T09:10:31","slug":"%e9%9d%a0%e6%8e%92%e7%85%a7%e7%89%87%e5%92%8c%e6%8b%8d%e8%a7%86%e9%a2%91%e5%81%9a%e5%88%b0%e6%9c%88%e5%85%a510%e4%b8%87-20","status":"publish","type":"post","link":"https:\/\/www.xttblog.com\/?p=2021","title":{"rendered":"Spring\u52a8\u6001\u8def\u7531AbstractRoutingDataSource(\u6570\u636e\u6e90\u52a8\u6001\u5207\u6362)\u6559\u7a0b"},"content":{"rendered":"

\n\t\u6570\u636e\u6e90\u52a8\u6001\u5207\u6362\u4e5f\u4e0d\u662f\u4ec0\u4e48\u65b0\u6280\u672f\uff0c\u963f\u91cc\u5728\u65e9\u671f\u90fd\u6709\u591a\u9686\u5927\u795e\u5b9e\u73b0\u4e86\u3002\u4f46\u662f\u6211\u4eec\u4eca\u5929\u8981\u8bb2\u7684\u662f Spring<\/a> \u5bf9\u6570\u636e\u6e90\u8def\u7531\u7684\u5b9e\u73b0\u3002\n<\/p>\n

\n\t\u5927\u9879\u76ee\u7684\u591a\u4e2a\u6570\u636e\u5e93\u52a8\u6001\u5207\u6362\u5df2\u662f\u67b6\u6784\u5e08\u8003\u8651\u7684\u8d8b\u52bf\u3002\u6570\u636e\u6e90\u52a8\u6001\u5207\u6362\u5f80\u5f80\u80fd\u7ed9\u6211\u5e26\u6765\u5f88\u591a\u597d\u5904\uff0c\u6bd4\u5982\u6839\u636e\u591a\u8bed\u8a00\u5b9e\u73b0\u6570\u636e\u5e93\u52a8\u6001\u5207\u6362\uff0c\u8bfb\u5199\u5206\u79bb\u6570\u636e\u5e93\u52a8\u6001\u5207\u6362\uff0c\u707e\u5907\u5904\u7406\u7b49\u90fd\u53ef\u4ee5\u5e94\u7528\u6570\u636e\u6e90\u7684\u52a8\u6001\u5207\u6362\u3002\n<\/p>\n

\n\t\u9664\u4e86\u4e0a\u9762\u7684\u5e94\u7528\uff0c\u5173\u4e8e\u6c34\u5e73\u5206\u5e93\u548c\u5782\u76f4\u5206\u5e93\uff0c\u90fd\u662f\u591a\u6570\u636e\u6e90\u7684\u5207\u6362\u7684\u4f7f\u7528\u573a\u666f\u3002\u5173\u4e8e\u6570\u636e\u5e93\u67b6\u6784\u65b9\u9762\u7684\u77e5\u8bc6\uff0c\u63a8\u8350\u5927\u5bb6\u9605\u8bfb\u6211\u7684\u8fd9\u7bc7\u6587\u7ae0\uff1a\u5927\u578b\u7f51\u7ad9\u5e94\u7528\u4e2dMySQL\u7684\u67b6\u6784\u6f14\u53d8\u53f2<\/a>\u3002\n<\/p>\n

\n\t\u4e0b\u9762\u56de\u5f52\u4eca\u5929\u7684\u4e3b\u9898\uff0cSpring<\/a> \u7684 AbstractRoutingDataSource<\/a> \u52a8\u6001\u6570\u636e\u6e90\uff08\u6570\u636e\u6e90\u5207\u6362\uff09\u3002\n<\/p>\n

\n\tAbstractRoutingDataSource<\/a> \u7684\u4e00\u4e2a\u4f5c\u7528\u5c31\u662f\u53ef\u4ee5\u6839\u636e\u7528\u6237\u53d1\u8d77\u7684\u4e0d\u540c\u8bf7\u6c42\u53bb\u8f6c\u6362\u4e0d\u540c\u7684\u6570\u636e\u6e90\uff0c\u6bd4\u5982\u6839\u636e\u7528\u6237\u7684\u4e0d\u540c\u5730\u533a\u8bed\u8a00\u9009\u62e9\u4e0d\u540c\u7684\u6570\u636e\u5e93\u3002\u8981\u5b9e\u73b0\u52a8\u6001\u6570\u636e\u6e90\u6211\u4eec\u5fc5\u987b\u8981\u5b9e\u73b0 AbstractRoutingDataSource<\/a>\u3002\n<\/p>\n

\r\npackage com.xttblog.dataSource;\r\nimport org.slf4j.Logger;\r\nimport org.slf4j.LoggerFactory;\r\nimport org.springframework.jdbc.datasource.lookup.AbstractRoutingDataSource;\r\n\/\/\u52a8\u6001\u6570\u636e\u6e90\uff08\u6570\u636e\u6e90\u5207\u6362\uff09\r\npublic class DynamicDataSource extends AbstractRoutingDataSource {\r\n    private final static Logger _log = LoggerFactory.getLogger(DynamicDataSource.class);\r\n    private static final ThreadLocal<String> contextHolder = new ThreadLocal<>();\r\n    @Override\r\n    protected Object determineCurrentLookupKey() {\r\n        String dataSource = getDataSource();\r\n        _log.info("\u5f53\u524d\u64cd\u4f5c\u4f7f\u7528\u7684\u6570\u636e\u6e90\uff1a{}", dataSource);\r\n        return dataSource;\r\n        \/**\u591a\u8bed\u8a00\u7684\u4e00\u4e2a\u5b9e\u4f8b\r\n        String language = LocaleContextHolder.getLocale().getLanguage();  \r\n        System.out.println("Language obtained: "+ language);  \r\n        return language;*\/\r\n    }\r\n    \/\/\u8bbe\u7f6e\u6570\u636e\u6e90\r\n    public static void setDataSource(String dataSource) {\r\n        contextHolder.set(dataSource);\r\n    }\r\n    \/\/\u83b7\u53d6\u6570\u636e\u6e90\r\n    public static String getDataSource() {\r\n        String dataSource = contextHolder.get();\r\n        \/\/ \u5982\u679c\u6ca1\u6709\u6307\u5b9a\u6570\u636e\u6e90\uff0c\u4f7f\u7528\u9ed8\u8ba4\u6570\u636e\u6e90\r\n        if (null == dataSource) {\r\n            DynamicDataSource.setDataSource(DataSourceEnum.MASTER.getDefault());\r\n        }\r\n        return contextHolder.get();\r\n    }\r\n    \/\/\u6e05\u9664\u6570\u636e\u6e90\r\n    public static void clearDataSource() {\r\n        contextHolder.remove();\r\n    }\r\n}<\/pre>\n
\n\t\u591a\u4e2a\u6570\u636e\u6e90\u662f\u591a\u4e2adataSource\uff0c\u5207\u8bb0\u4e0d\u80fd\u662f\u591a\u4e2asqlSessionFactory\u3002\u4e0b\u9762\u662f DynamicDataSource \u591a\u6570\u636e\u6e90\u7684\u914d\u7f6e\u5185\u5bb9\uff1a\n<\/p>\n
\r\n<?xml version="1.0" encoding="UTF-8"?>\r\n<beans xmlns="http:\/\/www.springframework.org\/schema\/beans"\r\n       xmlns:xsi="http:\/\/www.w3.org\/2001\/XMLSchema-instance"\r\n       xmlns:aop="http:\/\/www.springframework.org\/schema\/aop"\r\n       xmlns:tx="http:\/\/www.springframework.org\/schema\/tx"\r\n       xmlns:context="http:\/\/www.springframework.org\/schema\/context"\r\n       xsi:schemaLocation="\r\n          http:\/\/www.springframework.org\/schema\/beans\r\n          http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd\r\n          http:\/\/www.springframework.org\/schema\/tx\r\n          http:\/\/www.springframework.org\/schema\/tx\/spring-tx.xsd\r\n          http:\/\/www.springframework.org\/schema\/context\r\n          http:\/\/www.springframework.org\/schema\/context\/spring-context.xsd\r\n          http:\/\/www.springframework.org\/schema\/aop\r\n          http:\/\/www.springframework.org\/schema\/aop\/spring-aop.xsd">\r\n    <!-- \u5f15\u5165jdbc\u914d\u7f6e\u6587\u4ef6 -->\r\n    <!--<context:property-placeholder location="classpath:jdbc.properties" \/>-->\r\n    <!-- \u914d\u7f6e\u8fdb\u884c\u89e3\u5bc6  -->\r\n    <bean id="propertyConfigurer" class="com.xttblog.plugin.EncryptPropertyPlaceholderConfigurer">\r\n        <property name="locations">\r\n            <list>\r\n                <value>classpath:jdbc.properties<\/value>\r\n                <value>classpath:redis.properties<\/value>\r\n            <\/list>\r\n        <\/property>\r\n    <\/bean>\r\n    <!-- \u4e3b\u5e93\u6570\u636e\u6e90 -->\r\n    <bean id="masterDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init"\r\n          destroy-method="close">\r\n        <!-- \u57fa\u672c\u5c5e\u6027 url\u3001user\u3001password -->\r\n        <property name="driverClassName" value="${master.jdbc.driver}"\/>\r\n        <property name="url" value="${master.jdbc.url}"\/>\r\n        <property name="username" value="${master.jdbc.username}"\/>\r\n        <property name="password" value="${master.jdbc.password}"\/>\r\n        <!-- \u914d\u7f6e\u521d\u59cb\u5316\u5927\u5c0f\u3001\u6700\u5c0f\u3001\u6700\u5927 -->\r\n        <property name="initialSize" value="1"\/>\r\n        <property name="minIdle" value="1"\/>\r\n        <property name="maxActive" value="20"\/>\r\n        <!-- \u914d\u7f6e\u83b7\u53d6\u8fde\u63a5\u7b49\u5f85\u8d85\u65f6\u7684\u65f6\u95f4 -->\r\n        <property name="maxWait" value="60000"\/>\r\n        <!-- \u914d\u7f6e\u95f4\u9694\u591a\u4e45\u624d\u8fdb\u884c\u4e00\u6b21\u68c0\u6d4b\uff0c\u68c0\u6d4b\u9700\u8981\u5173\u95ed\u7684\u7a7a\u95f2\u8fde\u63a5\uff0c\u5355\u4f4d\u662f\u6beb\u79d2 -->\r\n        <property name="timeBetweenEvictionRunsMillis" value="60000"\/>\r\n        <!-- \u914d\u7f6e\u4e00\u4e2a\u8fde\u63a5\u5728\u6c60\u4e2d\u6700\u5c0f\u751f\u5b58\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u6beb\u79d2 -->\r\n        <property name="minEvictableIdleTimeMillis" value="300000"\/>\r\n        <!-- \u6821\u9a8c\u8bed\u53e5 -->\r\n        <property name="validationQuery" value="SELECT 1"\/>\r\n        <property name="testWhileIdle" value="true"\/>\r\n        <property name="testOnBorrow" value="false"\/>\r\n        <property name="testOnReturn" value="false"\/>\r\n        <!-- \u914d\u7f6e\u76d1\u63a7\u7edf\u8ba1\u62e6\u622a\u7684filters -->\r\n        <property name="filters" value="stat"\/>\r\n    <\/bean>\r\n    <!-- \u4ece\u5e93\u6570\u636e\u6e90 -->\r\n    <bean id="slaveDataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">\r\n        <!-- \u57fa\u672c\u5c5e\u6027 url\u3001user\u3001password -->\r\n        <property name="driverClassName" value="${slave.jdbc.driver}"\/>\r\n        <property name="url" value="${slave.jdbc.url}"\/>\r\n        <property name="username" value="${slave.jdbc.username}"\/>\r\n        <property name="password" value="${slave.jdbc.password}"\/>\r\n        <!-- \u914d\u7f6e\u521d\u59cb\u5316\u5927\u5c0f\u3001\u6700\u5c0f\u3001\u6700\u5927 -->\r\n        <property name="initialSize" value="1"\/>\r\n        <property name="minIdle" value="1"\/>\r\n        <property name="maxActive" value="20"\/>\r\n        <!-- \u914d\u7f6e\u83b7\u53d6\u8fde\u63a5\u7b49\u5f85\u8d85\u65f6\u7684\u65f6\u95f4 -->\r\n        <property name="maxWait" value="60000"\/>\r\n        <!-- \u914d\u7f6e\u95f4\u9694\u591a\u4e45\u624d\u8fdb\u884c\u4e00\u6b21\u68c0\u6d4b\uff0c\u68c0\u6d4b\u9700\u8981\u5173\u95ed\u7684\u7a7a\u95f2\u8fde\u63a5\uff0c\u5355\u4f4d\u662f\u6beb\u79d2 -->\r\n        <property name="timeBetweenEvictionRunsMillis" value="60000"\/>\r\n        <!-- \u914d\u7f6e\u4e00\u4e2a\u8fde\u63a5\u5728\u6c60\u4e2d\u6700\u5c0f\u751f\u5b58\u7684\u65f6\u95f4\uff0c\u5355\u4f4d\u662f\u6beb\u79d2 -->\r\n        <property name="minEvictableIdleTimeMillis" value="300000"\/>\r\n        <!-- \u6821\u9a8c\u8bed\u53e5 -->\r\n        <property name="validationQuery" value="SELECT 1"\/>\r\n        <property name="testWhileIdle" value="true"\/>\r\n        <property name="testOnBorrow" value="false"\/>\r\n        <property name="testOnReturn" value="false"\/>\r\n        <!-- \u914d\u7f6e\u76d1\u63a7\u7edf\u8ba1\u62e6\u622a\u7684filters -->\r\n        <property name="filters" value="stat"\/>\r\n    <\/bean>\r\n    <!-- \u52a8\u6001\u6570\u636e\u6e90 -->\r\n    <bean id="dataSource" class="com.xttblog.dataSource.DynamicDataSource">\r\n        <property name="targetDataSources">\r\n            <map key-type="java.lang.String">\r\n                <!-- \u53ef\u914d\u7f6e\u591a\u4e2a\u6570\u636e\u6e90 -->\r\n                <entry value-ref="masterDataSource" key="masterDataSource"><\/entry>\r\n                <entry value-ref="slaveDataSource" key="slaveDataSource"><\/entry>\r\n            <\/map>\r\n        <\/property>\r\n        <property name="defaultTargetDataSource" ref="masterDataSource"><\/property>\r\n    <\/bean>\r\n    <!-- \u4e3aMybatis\u521b\u5efaSqlSessionFactory\uff0c\u540c\u65f6\u6307\u5b9a\u6570\u636e\u6e90 -->\r\n    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">\r\n        <property name="dataSource" ref="dataSource"\/>\r\n        <property name="configLocation" value="classpath:mybatis-config.xml"\/>\r\n        <property name="mapperLocations" value="classpath*:com\/zheng\/pay\/dao\/mapper\/*Mapper.xml"\/>\r\n    <\/bean>\r\n    <!-- Mapper\u63a5\u53e3\u6240\u5728\u5305\u540d\uff0cSpring\u4f1a\u81ea\u52a8\u67e5\u627e\u5176\u4e0b\u7684Mapper -->\r\n    <bean id="mapperScannerConfigurer" class="org.mybatis.spring.mapper.MapperScannerConfigurer">\r\n        <property name="basePackage" value="**.mapper"\/>\r\n        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"\/>\r\n    <\/bean>\r\n    <!-- \u4e8b\u52a1\u7ba1\u7406\u5668 -->\r\n    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">\r\n        <property name="dataSource" ref="dataSource"\/>\r\n    <\/bean>\r\n    <tx:advice id="txAdvice" transaction-manager="transactionManager">\r\n        <tx:attributes>\r\n            <tx:method name="insert*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="add*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="update*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="modify*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="edit*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="del*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="save*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="send*" propagation="NESTED" rollback-for="Exception"\/>\r\n            <tx:method name="get*" read-only="true"\/>\r\n            <tx:method name="find*" read-only="true"\/>\r\n            <tx:method name="query*" read-only="true"\/>\r\n            <tx:method name="search*" read-only="true"\/>\r\n            <tx:method name="select*" read-only="true"\/>\r\n            <tx:method name="count*" read-only="true"\/>\r\n        <\/tx:attributes>\r\n    <\/tx:advice>\r\n \r\n    <aop:config>\r\n        <aop:pointcut id="service" expression="execution(* com.xttblog.datasource..*.service.*.*(..))"\/>\r\n        <!-- \u5173\u952e\u914d\u7f6e\uff0c\u5207\u6362\u6570\u636e\u6e90\u4e00\u5b9a\u8981\u6bd4\u6301\u4e45\u5c42\u4ee3\u7801\u66f4\u5148\u6267\u884c\uff08\u4e8b\u52a1\u4e5f\u7b97\u6301\u4e45\u5c42\u4ee3\u7801\uff09 -->\r\n        <aop:advisor advice-ref="txAdvice" pointcut-ref="service" order="2"\/>\r\n        <aop:advisor advice-ref="dataSourceExchange" pointcut-ref="service" order="1"\/>\r\n    <\/aop:config>\r\n<\/beans><\/pre>\n
\n\t\u4ee5\u4e0a\u6838\u5fc3\u4ee3\u7801\u5c31\u53ef\u4ee5\u8ba9\u6211\u4eec\u57fa\u4e8eaop\u5b9e\u73b0\u591a\u8bed\u8a00\uff0c\u6216\u8005\u8bfb\u5199\u5206\u79bb\u4e4b\u7c7b\u7684\u591a\u6570\u636e\u6e90\u5207\u6362\u4e86\u3002\n<\/p>\n
\n\t\u8fd9\u7bc7\u6587\u7ae0\u53ea\u662f\u4ecb\u7ecd\u4e86 AbstractRoutingDataSource<\/a> \u7684\u7b80\u964b\u5b9e\u73b0\uff0c\u5173\u4e8e\u8bfb\u5199\u5206\u79bb\u548c AbstractRoutingDataSource<\/a> \u7684\u5b9e\u73b0\u539f\u7406\uff0c\u6211\u4eec\u540e\u8fb9\u5728\u5b9e\u73b0\u3002<\/p>\n
\"\u4e1a\u4f59\u8349\u516c\u4f17\u53f7\"\/<\/p>
\u6700\u540e\uff0c\u6b22\u8fce\u5173\u6ce8\u6211\u7684\u4e2a\u4eba\u5fae\u4fe1\u516c\u4f17\u53f7\uff1a\u4e1a\u4f59\u8349\uff08yyucao\uff09\uff01\u53ef\u52a0\u4f5c\u8005\u5fae\u4fe1\u53f7\uff1axttblog2<\/font>\u3002\u5907\u6ce8\uff1a\u201c1\u201d\uff0c\u6dfb\u52a0\u535a\u4e3b\u5fae\u4fe1\u62c9\u4f60\u8fdb\u5fae\u4fe1\u7fa4\u3002\u5907\u6ce8\u9519\u8bef\u4e0d\u4f1a\u540c\u610f\u597d\u53cb\u7533\u8bf7\u3002<\/b>\u518d\u6b21\u611f\u8c22\u60a8\u7684\u5173\u6ce8\uff01\u540e\u7eed\u6709\u7cbe\u5f69\u5185\u5bb9\u4f1a\u7b2c\u4e00\u65f6\u95f4\u53d1\u7ed9\u60a8\uff01\u539f\u521b\u6587\u7ae0\u6295\u7a3f\u8bf7\u53d1\u9001\u81f3532009913@qq.com\u90ae\u7bb1\u3002\u5546\u52a1\u5408\u4f5c\u4e5f\u53ef\u6dfb\u52a0\u4f5c\u8005\u5fae\u4fe1\u8fdb\u884c\u8054\u7cfb\uff01<\/p>
\u672c\u6587\u539f\u6587\u51fa\u5904\uff1a\u4e1a\u4f59\u8349<\/a>\uff1a » Spring\u52a8\u6001\u8def\u7531AbstractRoutingDataSource(\u6570\u636e\u6e90\u52a8\u6001\u5207\u6362)\u6559\u7a0b<\/a><\/p>","protected":false},"excerpt":{"rendered":"
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