说明

目前提供的示例是针对使用dubbo的服务，那Spring Boot的项目如何集成fescar呢？

快速开始

使用案例

Business Service购买商品的业务逻辑。整个业务逻辑由3个微服务驱动:

Storage service: 扣除给定商品的库存量.
Order service: 根据采购需求创建订单.
Account service: 借记用户帐户上的余额.

请求逻辑

fescar下载

下载地址:https://github.com/alibaba/fescar/releases

脚本

业务脚本

DROP TABLE IF EXISTS `storage_tbl`;
CREATE TABLE `storage_tbl` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `commodity_code` varchar(255) DEFAULT NULL,
  `count` int(11) DEFAULT 0,
  PRIMARY KEY (`id`),
  UNIQUE KEY (`commodity_code`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;


DROP TABLE IF EXISTS `order_tbl`;
CREATE TABLE `order_tbl` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` varchar(255) DEFAULT NULL,
  `commodity_code` varchar(255) DEFAULT NULL,
  `count` int(11) DEFAULT 0,
  `money` int(11) DEFAULT 0,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;


DROP TABLE IF EXISTS `account_tbl`;
CREATE TABLE `account_tbl` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `user_id` varchar(255) DEFAULT NULL,
  `money` int(11) DEFAULT 0,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

事务脚本

-- 注意此处0.3.0+ 增加唯一索引 ux_undo_log
CREATE TABLE `undo_log` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(100) NOT NULL,
  `rollback_info` longblob NOT NULL,
  `log_status` int(11) NOT NULL,
  `log_created` datetime NOT NULL,
  `log_modified` datetime NOT NULL,
  `ext` varchar(100) DEFAULT NULL,
  PRIMARY KEY (`id`),
  UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;

集成

<dependency>
    <groupId>org.springframework.boot</groupId>
    <artifactId>spring-boot-starter-seata</artifactId>
    <version>${project.version}</version>
</dependency>

使用

使用注解@GlobalTransactional

    @GlobalTransactional(timeoutMills = 300000, name = "spring-cloud-demo-tx")
    @RequestMapping(value = "/fescar/feign", method = RequestMethod.GET, produces = "application/json")
    public String feign() {
        LOGGER.info("business Service Begin ... xid: " + RootContext.getXID());
        String result = storageService.storage(COMMODITY_CODE, ORDER_COUNT);
        if (!SUCCESS.equals(result)) {
            throw new RuntimeException();
        }
        result = orderService.order(USER_ID, COMMODITY_CODE, ORDER_COUNT);
        if (!SUCCESS.equals(result)) {
            throw new RuntimeException();
        }
        return SUCCESS;
    }