springboot 多數據源添加事務管理

1.添加一個配置文件

package com.hanhuide.driver.config;

import com.hanhuide.driver.dataSource.DataSourceNames;

import javax.sql.DataSource;

import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.jdbc.datasource.DataSourceTransactionManager;

/**
 * @ProjectName: maven
 * @Package: com.hanhuide.driver.config
 * @ClassName: TransactionConfig
 * @Author: 韓惠德
 * @Description: 多數據源多事務管理器
 * @Date: 2020/1/15 14:59
 * @Version: 1.0
 */
@Configuration
public class TransactionConfig {
    @Bean(name = DataSourceNames.MASTER)
    public DataSourceTransactionManager transactionMASTER(@Qualifier(DataSourceNames.MASTER) DataSource firstDataSource) {
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(firstDataSource);
        return dataSourceTransactionManager;
    }

    @Bean(name = DataSourceNames.CLUSTER)
    public DataSourceTransactionManager transactionCLUSTER(@Qualifier(DataSourceNames.CLUSTER) DataSource firstDataSource) {
        DataSourceTransactionManager dataSourceTransactionManager = new DataSourceTransactionManager(firstDataSource);
        return dataSourceTransactionManager;
    }
}

在使用的類上添加註解就可以使用不同的事務管理器了

package com.hanhuide.core.mapper;

import com.baomidou.mybatisplus.mapper.BaseMapper;
import com.hanhuide.core.model.SysUser;
import com.hanhuide.driver.annotation.DataSource;
import com.hanhuide.driver.dataSource.DataSourceNames;
import org.apache.ibatis.annotations.Select;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

/**
 * @program: maven
 * @description:
 * @author: 韓惠德
 * @create: 2019-12-24 16:39
 * @version: 1.0
 **/
@Service
public interface CeshiMapper extends BaseMapper<SysUser> {
    @Select("select * from sys_user")
    List<SysUser> findAll();

    @Select("select * from sys_user")
    @DataSource(DataSourceNames.CLUSTER)
    @Transactional(value = DataSourceNames.CLUSTER, rollbackFor = Exception.class)
    List<SysUser> findAll2();

}

注意bean的名字不能衝突