学习SpringBoot系列 -02- 多数据源

@SpringBootApplication(exclude = {
    DataSourceAutoConfiguration.class,
    DataSourceTransactionManagerAutoConfiguration.class,
    JdbcTemplateAutoConfiguration.class
})
public class HelloJdbcApplication {

    public static void main(String[] args) {
        SpringApplication.run(HelloJdbcApplication.class, args);
    }

}

// 这里以H2演示，后面更新

foo.datasource.url=jdbc:h2:mem:foo
foo.datasource.username=sa
foo.datasource.password=

bar.datasource.url=jdbc:h2:mem:bar
bar.datasource.username=sa
bar.datasource.password=

@Configuration
public class FooDataSourceConfiguration {

    @Bean
    @ConfigurationProperties("foo.datasource")
    public DataSourceProperties fooDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    public DataSource fooDataSource() {
        DataSourceProperties dataSourceProperties = fooDataSourceProperties();
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }

    @Bean
    @Resource
    public PlatformTransactionManager fooTxManager(DataSource fooDataSource) {
        return new DataSourceTransactionManager(fooDataSource);
    }
}

@Configuration
public class BarDataSourceConfiguration {

    @Bean
    @ConfigurationProperties("bar.datasource")
    public DataSourceProperties barDataSourceProperties() {
        return new DataSourceProperties();
    }

    @Bean
    public DataSource barDataSource() {
        DataSourceProperties dataSourceProperties = barDataSourceProperties();
        return dataSourceProperties.initializeDataSourceBuilder().build();
    }

    @Bean
    @Resource
    public PlatformTransactionManager barTxManager(DataSource barDataSource) {
        return new DataSourceTransactionManager(barDataSource);
    }
}