1.3 快速开始(docker-compose)

1.3.1 关于本节

• 本节内容为您介绍如何通过txle的docker-compose文件来启动txle服务端和业务demo

1.3.2 安装准备

• 安装docker
• 安装docker-compose

1.3.3 安装过程

从txle项目中下载最新的docker-compose.yml文件
https://github.com/actiontech/txle/blob/master/docker-images/docker-compose.yml
使用docker-compose up -d命令直接启动txle，compose配置文件会从dockerhub拉取镜像并最终启动txle服务端和业务demo

1.3.4 使用工具发起全局事务

1. 发起转账1元，转账将会成功

    $ curl http://${host_address}:8000/testGlobalTransaction/1/1/1
    $ ok
   

2. 访问数据库查看账户余额

    $ docker exec -it backend-mysql bash
    # mysql -uroot -p123456
    mysql> select * from db1.txle_sample_transfer;
    +----+--------+------------+---------+--------+--------+---------+---------------------+
    | id | userid | merchantid | amount  | payway | status | version | createtime          |
    +----+--------+------------+---------+--------+--------+---------+---------------------+
    |  1 |      1 | 1          | 1.00000 |      1 |      1 |       0 | 2019-10-30 09:47:54 |
    +----+--------+------------+---------+--------+--------+---------+---------------------+
    1 row in set (0.00 sec)
   
    mysql> select * from db2.txle_sample_user;
    +----+------+-----------+---------+---------------------+
    | id | name | balance   | version | createtime          |
    +----+------+-----------+---------+---------------------+
    |  1 | user | 999.00000 |       1 | 2019-10-30 09:47:30 |
    +----+------+-----------+---------+---------------------+
    1 row in set (0.00 sec)
   
    mysql> select * from db3.txle_sample_merchant;
    +----+----------+---------+---------+---------------------+
    | id | name     | balance | version | createtime          |
    +----+----------+---------+---------+---------------------+
    |  1 | merchant | 1.00000 |       1 | 2019-10-30 09:47:31 |
    +----+----------+---------+---------+---------------------+
    1 row in set (0.00 sec)
   

   txle_sample_transfer记录了一条交易成功的记录，txle_sample_user和txle_sample_merchant数据正常记录

3. 根据示例代码里的设定发起转账金额大于200元，第二个子服务merchant会报错导致转账将会失败

    $ curl http://${host_address}:8000/testGlobalTransaction/1/300/1
    $ {"timestamp":1572429018848,"status":500,"error":"Internal Server Error","exception":"org.springframework.web.client.HttpServerErrorException","message":"500 null","path":"/testGlobalTransaction/1/300/1"}
   

4. 访问数据库查看账户余额

    $ docker exec -it backend-mysql bash
    # mysql -uroot -p123456
    mysql> select * from db1.txle_sample_transfer;
    +----+--------+------------+-----------+--------+--------+---------+---------------------+
    | id | userid | merchantid | amount    | payway | status | version | createtime          |
    +----+--------+------------+-----------+--------+--------+---------+---------------------+
    |  1 |      1 | 1          |   1.00000 |      1 |      1 |       0 | 2019-10-30 09:47:54 |
    |  2 |      1 | 1          | 300.00000 |      1 |      2 |       0 | 2019-10-30 09:50:18 |
    +----+--------+------------+-----------+--------+--------+---------+---------------------+
    2 rows in set (0.00 sec)
   
    mysql> select * from db2.txle_sample_user;
    +----+------+-----------+---------+---------------------+
    | id | name | balance   | version | createtime          |
    +----+------+-----------+---------+---------------------+
    |  1 | user | 999.00000 |       1 | 2019-10-30 09:47:30 |
    +----+------+-----------+---------+---------------------+
    1 row in set (0.00 sec)
   
    mysql> select * from db3.txle_sample_merchant;
    +----+----------+---------+---------+---------------------+
    | id | name     | balance | version | createtime          |
    +----+----------+---------+---------+---------------------+
    |  1 | merchant | 1.00000 |       1 | 2019-10-30 09:47:31 |
    +----+----------+---------+---------+---------------------+
    1 row in set (0.01 sec)
   

   txle_sample_transfer记录了一条交易失败的记录，txle_sample_user和txle_sample_merchant数据回滚