1.读取配置文件

@Configuration
public class DataSourceConfig {
	//主数据源
    @Primary
    @Qualifier("primaryDataSource")
    @Bean(name = "primaryDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.druid.primary")
    public DataSource primaryDataSource() {
        return DruidDataSourceBuilder.create().build();
    }

    @Qualifier("secondaryDataSource")
    @Bean(name = "secondaryDataSource")
    @ConfigurationProperties(prefix = "spring.datasource.druid.secondary")
    public DataSource secondaryDataSource() {
        return DruidDataSourceBuilder.create().build();
    }
}

2.主数据源

@Configuration
@EnableTransactionManagement
@EnableJpaRepositories(
        entityManagerFactoryRef="entityManagerFactoryPrimary",
        transactionManagerRef="transactionManagerPrimary",
        basePackages=