1.Seata-Server的配置

本文章是在AT模式-File做注册配置中心的基础上进行。

1.1Nacos配置信息配置

  1. 启动nacos
  2. 准备config.txt,内容如下：
    1. service.vgroupMapping.my_test_tx_group=default
    2. store.mode=db
    3. store.db.datasource=druid
    4. store.db.dbType=mysql
    5. store.db.driverClassName=com.mysql.jdbc.Driver
    6. store.db.url=jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true
    7. store.db.user=root    #改成自己的
    8. store.db.password=888888 #改成自己的
    9. store.db.minConn=5
    10. store.db.maxConn=30
    11. store.db.globalTable=global_table
    12. store.db.branchTable=branch_table
    13. store.db.queryLimit=100
    14. store.db.lockTable=lock_table
    15. store.db.maxWait=5000
    注：config.txt位置放在seata的Home目录下。
    3.将config.txt中的配置配置到nacos上（通过脚本）
    https://github.com/seata/seata/blob/develop/script/config-center/nacos/nacos-config.sh 将此脚本放在seata的conf目录下后，执行以下命令：
    1. sh nacos-config.sh -h nacos的ip -p nacos端口 -g nacos配置文件的组 -t 你的namespace号(若是public可省略此选项) -u nacos用户名 -w nacos密码
    注：windows用户可以用git bash来执行哦！！
    4.观察结果
    image.png

1.2数据库的变化

1.新建seata数据库
2.在库中新建3张数据表

  1. -- -------------------------------- The script used when storeMode is 'db' --------------------------------
  2. -- the table to store GlobalSession data
  3. CREATE TABLE IF NOT EXISTS `global_table`
  4. (
  5.     `xid`                       VARCHAR(128) NOT NULL,
  6.     `transaction_id`            BIGINT,
  7.     `status`                    TINYINT      NOT NULL,
  8.     `application_id`            VARCHAR(32),
  9.     `transaction_service_group` VARCHAR(32),
  10.     `transaction_name`          VARCHAR(128),
  11.     `timeout`                   INT,
  12.     `begin_time`                BIGINT,
  13.     `application_data`          VARCHAR(2000),
  14.     `gmt_create`                DATETIME,
  15.     `gmt_modified`              DATETIME,
  16.     PRIMARY KEY (`xid`),
  17.     KEY `idx_gmt_modified_status` (`gmt_modified`, `status`),
  18.     KEY `idx_transaction_id` (`transaction_id`)
  19. ) ENGINE = InnoDB
  20.   DEFAULT CHARSET = utf8;
  22. -- the table to store BranchSession data
  23. CREATE TABLE IF NOT EXISTS `branch_table`
  24. (
  25.     `branch_id`         BIGINT       NOT NULL,
  26.     `xid`               VARCHAR(128) NOT NULL,
  27.     `transaction_id`    BIGINT,
  28.     `resource_group_id` VARCHAR(32),
  29.     `resource_id`       VARCHAR(256),
  30.     `branch_type`       VARCHAR(8),
  31.     `status`            TINYINT,
  32.     `client_id`         VARCHAR(64),
  33.     `application_data`  VARCHAR(2000),
  34.     `gmt_create`        DATETIME(6),
  35.     `gmt_modified`      DATETIME(6),
  36.     PRIMARY KEY (`branch_id`),
  37.     KEY `idx_xid` (`xid`)
  38. ) ENGINE = InnoDB
  39.   DEFAULT CHARSET = utf8;
  41. -- the table to store lock data
  42. CREATE TABLE IF NOT EXISTS `lock_table`
  43. (
  44.     `row_key`        VARCHAR(128) NOT NULL,
  45.     `xid`            VARCHAR(96),
  46.     `transaction_id` BIGINT,
  47.     `branch_id`      BIGINT       NOT NULL,
  48.     `resource_id`    VARCHAR(256),
  49.     `table_name`     VARCHAR(32),
  50.     `pk`             VARCHAR(36),
  51.     `gmt_create`     DATETIME,
  52.     `gmt_modified`   DATETIME,
  53.     PRIMARY KEY (`row_key`),
  54.     KEY `idx_branch_id` (`branch_id`)
  55. ) ENGINE = InnoDB
  56.   DEFAULT CHARSET = utf8;

1.3Seata-Server配置和启动

1.修改seata的conf目录下的registry.conf文件

  1. registry {
  2.   # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  3.   type = "nacos"
  5.   nacos {
  6.     application = "seata-server"
  7.     serverAddr = "127.0.0.1:8848"
  8.     group = "SEATA_GROUP"
  9.     namespace = ""
  10.     cluster = "default"
  11.     username = "nacos"
  12.     password = "nacos"
  13.   }
  14. }
  16. config {
  17.   # file、nacos 、apollo、zk、consul、etcd3
  18.   type = "nacos"
  20.   nacos {
  21.     serverAddr = "127.0.0.1:8848"
  22.     namespace = ""
  23.     group = "SEATA_GROUP"
  24.     username = "nacos"
  25.     password = "nacos"
  26.   }
  28. }

2.启动seata-server
①linus/mac

  1. sh seata-server.sh

②windows

  1. .\seata-server.bat

2.各个微服务的配置

  1. seata:
  2.   tx-service-group: my_test_tx_group
  3.   registry:
  4.     type: nacos
  5.     nacos:
  6.       server-addr: localhost:8848
  7.       username: nacos
  8.       password: nacos
  9.   config:
  10.     type: nacos
  11.     nacos:
  12.       server-addr: localhost:8848
  13.       username: nacos
  14.       password: nacos

码云：https://gitee.com/gao_xi/seata-demo.git