springboot druid 多数据源配置

由于工作当中，需要配置双数据源进行数据同步，以目录进行区别主副库的编写。这里记录一下，方便大家。

1、pom配置

<dependency>    <groupId>com.alibaba</groupId>    <artifactId>druid-spring-boot-starter</artifactId>    <version>${druid-spring-boot-starter.version}</version></dependency>

2、yml配置

spring: datasource:    druid:      primary:        driver-class-name: oracle.jdbc.driver.OracleDriver                     url: jdbc:oracle:thin:@192.168.1.1:1521:orcl             # 数据库名称        username: test        password: 123456        min-idle: 1                                           # 数据库连接池的最小维持连接数        initial-size: 5                                       # 初始化连接数        max-active: 8        max-wait: 60000      secondary:        driver-class-name: oracle.jdbc.driver.OracleDriver              # 驱动包 todo 光谷库        url: jdbc:oracle:thin:@192.168.1.2:1521:orcl             # 数据库名称        username: test        password: inner        min-idle: 1                                           # 数据库连接池的最小维持连接数        initial-size: 5                                       # 初始化连接数        max-active: 8        max-wait: 60000

3、配置类编写

@Configurationpublic class DataSourcePrimaryConfig {    @Bean(name = "primaryDataSource")    @ConfigurationProperties(prefix = "spring.datasource.druid.primary")    @Primary public DruidDataSource primaryDataSource() {        return DruidDataSourceBuilder.create().build(); }    @Bean    @Primary public SqlSessionFactory primarySqlSessionFactory(@Qualifier("primaryDataSource") DataSource dataSource) throws Exception {        SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); bean.setMapperLocations(resolver.getResources(                "classpath*:mybatis/mapping/*.xml")); bean.setConfigLocation(resolver.getResource("classpath:mybatis/mybatis.cfg.xml"));        return bean.getObject(); }    @Bean    @Primary public DataSourceTransactionManager primaryTransactionManager(@Qualifier("primaryDataSource") DataSource dataSource) {        return new DataSourceTransactionManager(dataSource); }    @Bean    @Primary public SqlSessionTemplate primarySqlSessionTemplate(@Qualifier("primarySqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {        return new SqlSessionTemplate(sqlSessionFactory); }

}

@Configurationpublic class DataSourceSecondaryConfig {    @Bean(name = "secondaryDataSource")    @ConfigurationProperties(prefix = "spring.datasource.druid.secondary")    public DruidDataSource secondaryDataSource() {        return DruidDataSourceBuilder.create().build(); }    @Bean public SqlSessionFactory secondarySqlSessionFactory(@Qualifier("secondaryDataSource") DataSource dataSource) throws Exception {        SqlSessionFactoryBean bean = new SqlSessionFactoryBean(); bean.setDataSource(dataSource); PathMatchingResourcePatternResolver resolver = new PathMatchingResourcePatternResolver(); bean.setMapperLocations(resolver.getResources(                "classpath*:mybatis/mapping/secondary/*.xml")); bean.setConfigLocation(resolver.getResource("classpath:mybatis/mybatis.cfg.xml"));        return bean.getObject(); }    @Bean public DataSourceTransactionManager secondaryTransactionManager(@Qualifier("secondaryDataSource") DataSource dataSource) {        return new DataSourceTransactionManager(dataSource); }    @Bean public SqlSessionTemplate secondarySqlSessionTemplate(@Qualifier("secondarySqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {        return new SqlSessionTemplate(sqlSessionFactory); }

}

4、MyBatisMapperScannerConfig 配置

@Configurationpublic class MyBatisMapperScannerConfig {    @Bean public MapperScannerConfigurer mapperScannerConfigurer() {        MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer(); mapperScannerConfigurer.setSqlSessionFactoryBeanName("primarySqlSessionFactory"); mapperScannerConfigurer.setSqlSessionTemplateBeanName("primarySqlSessionTemplate"); mapperScannerConfigurer.setBasePackage("com.onecloud.**.mapper");

 //初始化扫描器的相关配置，这里我们要创建一个Mapper的父类 Properties properties = new Properties(); properties.setProperty("mappers", "tk.mybatis.mapper.common.Mapper"); properties.setProperty("notEmpty", "false"); properties.setProperty("IDENTITY", "ORACLE"); //主键UUID回写方法执行顺序 默认AFTER properties.setProperty("ORDER","BEFORE"); mapperScannerConfigurer.setProperties(properties);        return mapperScannerConfigurer; }}

MyBatisSecondaryMapperScannerConfig 参照上面

原文地址：https://www.cnblogs.com/enots/p/11112533.html