Springboot-dubbo-fescar 阿里分布式事务的实现方法

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`),
 KEY `idx_unionkey` (`xid`,`branch_id`)
) ENGINE=InnoDB AUTO_INCREMENT=159 DEFAULT CHARSET=utf8；
 
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;
 
INSERT INTO `storage_tbl` VALUES ('1', 'C00321', '100'); 
INSERT INTO `account_tbl` VALUES ('1', 'U100001', '9999');

sh fescar-server.sh 8091 /home/admin/fescar/data/

fescar-server.bat

package com.hcsoc.order.service; 
import com.alibaba.fescar.core.context.RootContext;
import com.hcsoc.account.api.AccountService;
import com.hcsoc.order.api.OrderService;
import com.hcsoc.order.api.bean.Order;
import lombok.Setter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.PreparedStatementCreator;
import org.springframework.jdbc.support.GeneratedKeyHolder;
import org.springframework.jdbc.support.KeyHolder;
 
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.SQLException;
 
@Setter
public class OrderServiceImpl implements OrderService{
 
  private static final Logger LOGGER = LoggerFactory.getLogger(OrderService.class);
  @Autowired
  private AccountService accountService;
  @Autowired
  private JdbcTemplate jdbcTemplate;
 
 
  public Order create(String userId, String commodityCode, int orderCount) {
    LOGGER.info("Order Service Begin ... xid: " + RootContext.getXID());
 
    // 计算订单金额
    int orderMoney = calculate(commodityCode, orderCount);
 
    // 从账户余额扣款
    accountService.debit(userId, orderMoney);
 
    final Order order = new Order();
    order.userId = userId;
    order.commodityCode = commodityCode;
    order.count = orderCount;
    order.money = orderMoney;
    //模拟异常
    Integer.parseInt("2u");
 
    KeyHolder keyHolder = new GeneratedKeyHolder();
 
    jdbcTemplate.update(new PreparedStatementCreator() {
 
      public PreparedStatement createPreparedStatement(Connection con) throws SQLException {
        PreparedStatement pst = con.prepareStatement(
            "insert into order_tbl (user_id, commodity_code, count, money) values (?, ?, ?, ?)",
            PreparedStatement.RETURN_GENERATED_KEYS);
        pst.setObject(1, order.userId);
        pst.setObject(2, order.commodityCode);
        pst.setObject(3, order.count);
        pst.setObject(4, order.money);
        return pst;
      }
    }, keyHolder);
 
    order.id = keyHolder.getKey().longValue();
 
    LOGGER.info("Order Service End ... Created " + order);
 
    return order;
  }
 
  private int calculate(String commodityId, int orderCount) {
    return 200 * orderCount;
  }
}

{
  "timestamp": "2019-02-01T02:54:27.422+0000",
  "status": 500,
  "error": "Internal Server Error",
  "message": "For input string: \"2u\"",
  "path": "/purchase"
}