springboot多数据源配置

application.yml

spring:
  datasource:
    db1:
      type: com.alibaba.druid.pool.DruidDataSource
      driver-class-name: com.mysql.cj.jdbc.Driver
      jdbc-url: jdbc:mysql://192.168.188.10:3306/liuxn?useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghai
      username: root
      password: root
    db2:
      type: com.alibaba.druid.pool.DruidDataSource
      driver-class-name: com.mysql.cj.jdbc.Driver
      jdbc-url: jdbc:mysql://192.168.188.10:3306/liuxn2?useSSL=false&characterEncoding=utf8&serverTimezone=Asia/Shanghai
      username: root
      password: root

java代码配置多个数据源配置

1、DataSource1Config

@Configuration
@MapperScan(basePackages ="com.xs.beebot.shandong.report.mapper.one",sqlSessionTemplateRef ="oneSqlSessionTemplate" )
public class DataSource1Config {

    @Bean(name = "oneDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.db1")
    @Primary
    public DataSource testDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "oneSqlSessionFactory")
    @Primary
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("oneDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/one/*.xml"));
        return bean.getObject();
    }

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

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

2、DataSource2Config

@Configuration
@MapperScan(basePackages ="com.xs.beebot.shandong.report.mapper.two",sqlSessionTemplateRef ="twoSqlSessionTemplate" )
public class DataSource2Config {

    @Bean(name = "twoDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.db2")
    @Primary
    public DataSource testDataSource() {
        return DataSourceBuilder.create().build();
    }

    @Bean(name = "twoSqlSessionFactory")
    @Primary
    public SqlSessionFactory testSqlSessionFactory(@Qualifier("twoDataSource") DataSource dataSource) throws Exception {
        SqlSessionFactoryBean bean = new SqlSessionFactoryBean();
        bean.setDataSource(dataSource);
        bean.setMapperLocations(new PathMatchingResourcePatternResolver().getResources("classpath:mapper/two/*.xml"));
        return bean.getObject();
    }

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

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

代码使用：

@Service
public class UserService {

    @Resource
    private UserMapper userMapper;

    @Resource
    private LoginMapper loginMapper;

    public List<User> getAll(){
       return userMapper.selectByExample(new UserExample());
    }


    public List<Login> getAllLogin(){
        return loginMapper.selectByExample(new LoginExample());
    }
}