springboot配置多数据源（分包）

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配置文件配置多个数据源

# 数据源1
spring.datasource.data.driverClassName=com.mysql.jdbc.Driver
spring.datasource.data.url=jdbc:mysql://IP地址:3306/数据库?useUnicode=true&characterEncoding=utf8
spring.datasource.data.username=root
spring.datasource.data.password=密码
#数据源1
spring.datasource.recod.driverClassName=com.mysql.jdbc.Driver
spring.datasource.recod.url=jdbc:mysql://IP地址:3306/数据库?useUnicode=true&characterEncoding=utf8
spring.datasource.recod.username=root
spring.datasource.recod.password=密码

编写config类

basePackages 接口所在包路径
@ConfigurationProperties(prefix = “”)数据源名

@Configuration
@MapperScan(basePackages = "com.nk.db.data", sqlSessionFactoryRef =  "dataSqlSessionFactory")
public class DataMyBatisConfig {
	 @Bean(name = "DataSource")
	 @ConfigurationProperties(prefix = "spring.datasource.data")
     public DataSource testDataSource() {
         return DataSourceBuilder.create().build();
     }

     @Bean(name="dataSqlSessionFactory")
     public SqlSessionFactory testSqlSessionFactory(@Qualifier("DataSource") DataSource dataSource) throws Exception {
         SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
         bean.setDataSource(dataSource);
         //读取mybatis小配置文件
       bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapping/data/*/*.xml"));
         return bean.getObject();
     }

     @Bean(name = "dataTransactionManager")
     public DataSourceTransactionManager testTransactionManager(@Qualifier("DataSource") DataSource dataSource) {
         return new DataSourceTransactionManager(dataSource);
     }

     @Bean(name = "dataSqlSessionTemplate")
     public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("dataSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
         return new SqlSessionTemplate(sqlSessionFactory);
     }
}

@Primary 默认读取的数据库

@MapperScan(basePackages = "com.nk.db.record", sqlSessionFactoryRef = "recordSqlSessionFactory")
public class RecordMyBataisConfig {
	 @Bean(name = "recordDataSource")
	 @ConfigurationProperties(prefix = "spring.datasource.record")
     @Primary
     public DataSource testDataSource() {
         return DataSourceBuilder.create().build();
     }

     @Bean(name="recordSqlSessionFactory")
     @Primary
     public SqlSessionFactory testSqlSessionFactory(@Qualifier("recordDataSource") DataSource dataSource) throws Exception {
         SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
         bean.setDataSource(dataSource);
         //读取mybatis小配置文件
         bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapping/record/*/*.xml"));
         return bean.getObject();
     }

     @Bean(name = "recordTransactionManager")
     @Primary
     public DataSourceTransactionManager testTransactionManager(@Qualifier("recordDataSource") DataSource dataSource) {
         return new DataSourceTransactionManager(dataSource);
     }

     @Bean(name = "recordSqlSessionTemplate")
     @Primary
     public SqlSessionTemplate testSqlSessionTemplate(@Qualifier("recordSqlSessionFactory") SqlSessionFactory sqlSessionFactory) throws Exception {
         return new SqlSessionTemplate(sqlSessionFactory);
     }
}