springboot配置多个数据源
Posted 天涯已可
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spring:
datasource:
db1:
driver-class-name: com.mysql.cj.jdbc.Driver
jdbc-url: jdbc:mysql://127.0.0.1:3306/db1
username: root
password: root
db2:
driver-class-name: com.mysql.cj.jdbc.Driver
jdbc-url: jdbc:mysql://127.0.0.1:3306/db2
username: root
password: 123456
hikari:
maximum-pool-size: 5
minimumIdle: 5
idleTimeout: 600000
connectionTimeout: 30000
maxLifetime: 1800000
注入1
package com.test.demo.config.datasource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.SqlSessionTemplate; import org.mybatis.spring.annotation.MapperScan; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.boot.jdbc.DataSourceBuilder; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.jdbc.datasource.DataSourceTransactionManager; import org.springframework.transaction.support.TransactionTemplate; import javax.sql.DataSource; @Configuration @MapperScan(basePackages = "com.test.demo.mapper.db1", sqlSessionTemplateRef = "db1SqlSessionTemplate", sqlSessionFactoryRef = "db1SqlSessionFactory") public class Db1DataSourceConfig @Bean @ConfigurationProperties(prefix = "spring.datasource.db1") public DataSource db1DataSource() return DataSourceBuilder.create().build(); @Bean public SqlSessionFactory db1SqlSessionFactory(@Qualifier("db1DataSource") DataSource dataSource) throws Exception SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration(); configuration.setMapUnderscoreToCamelCase(true); bean.setConfiguration(configuration); bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/db1/*.xml")); return bean.getObject(); @Bean public DataSourceTransactionManager db1TransactionManager(@Qualifier("db1DataSource") DataSource dataSource) return new DataSourceTransactionManager(dataSource); @Bean public SqlSessionTemplate db1SqlSessionTemplate(@Qualifier("db1SqlSessionFactory") SqlSessionFactory sqlSessionFactory) return new SqlSessionTemplate(sqlSessionFactory); @Bean public TransactionTemplate db1TransactionTemplate(@Qualifier("db1TransactionManager") DataSourceTransactionManager dataSourceTransactionManager) return new TransactionTemplate(dataSourceTransactionManager);
注入2
package com.test.demo.config.datasource; import org.apache.ibatis.session.SqlSessionFactory; import org.mybatis.spring.SqlSessionFactoryBean; import org.mybatis.spring.SqlSessionTemplate; import org.mybatis.spring.annotation.MapperScan; import org.springframework.beans.factory.annotation.Qualifier; import org.springframework.boot.context.properties.ConfigurationProperties; import org.springframework.boot.jdbc.DataSourceBuilder; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.core.io.support.PathMatchingResourcePatternResolver; import org.springframework.jdbc.datasource.DataSourceTransactionManager; import org.springframework.transaction.support.TransactionTemplate; import javax.sql.DataSource; @Configuration @MapperScan(basePackages = "com.test.demo.mapper.db2", sqlSessionTemplateRef = "db2SqlSessionTemplate", sqlSessionFactoryRef = "db2SqlSessionFactory") public class Db2DataSourceConfig /** * 配置db2的数据源 * @return */ @Bean @ConfigurationProperties(prefix = "spring.datasource.db2") public DataSource db2DataSource() return DataSourceBuilder.create().build(); /** * 配置该数据源的sql会话工厂 * @param dataSource * @return * @throws Exception */ @Bean public SqlSessionFactory db2SqlSessionFactory(@Qualifier("db2DataSource") DataSource dataSource) throws Exception SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); org.apache.ibatis.session.Configuration configuration = new org.apache.ibatis.session.Configuration(); configuration.setMapUnderscoreToCamelCase(true); bean.setConfiguration(configuration); bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/db2/*.xml")); return bean.getObject(); /** * 配置该数据源的事务管理器 * @param dataSource * @return */ @Bean public DataSourceTransactionManager db2TransactionManager(@Qualifier("db2DataSource") DataSource dataSource) return new DataSourceTransactionManager(dataSource); /** * 配置db2数据源的sql会话模板 * @param sqlSessionFactory * @return */ @Bean public SqlSessionTemplate db2SqlSessionTemplate(@Qualifier("db2SqlSessionFactory") SqlSessionFactory sqlSessionFactory) return new SqlSessionTemplate(sqlSessionFactory); /** * 配置db2数据源的事务模板 * @param dataSourceTransactionManager * @return */ @Bean public TransactionTemplate db2TransactionTemplate(@Qualifier("db2TransactionManager") DataSourceTransactionManager dataSourceTransactionManager) return new TransactionTemplate(dataSourceTransactionManager);
在对应的包和资源文件夹下创建dao和xml文件,自动调用
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