Spring Cloud + Nacos + MybatisPlus 集成 Seata

架构依赖包版本说明

• Spring Cloud Hoxton.SR10
• Spring cloud alibaba 2.2.1.RELEASE
• Spring boot 2.3.8.RELEASE
• Mybatis-plus 3.4.1
• mysql-connector-java 8.0.17
• Nacos 1.4.1
• Seata 1.4.1

集成步骤

1. 下载，启动Nacos，此处省略

2. 下载，配置，并启动 seata

   • 点击进入：https://github.com/seata/seata/releases
   • 编辑registry.conf，关键配置如下

registry {
  # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
  type = "nacos"
  loadBalance = "RandomLoadBalance"
  loadBalanceVirtualNodes = 10

  nacos {
    application = "seata-server"
    serverAddr = "127.0.0.1:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = ""
    password = ""
  }
}

• 编辑file.conf，关键配置如下：

store {
  ## store mode: file、db、redis
  mode = "db"
  
    ## database store property
  db {
    ## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp)/HikariDataSource(hikari) etc.
    datasource = "druid"
    ## mysql/oracle/postgresql/h2/oceanbase etc.
    dbType = "mysql"
    driverClassName = "com.mysql.cj.jdbc.Driver"
    url = "jdbc:mysql://xxxx:3306/seata_db"
    user = "xxx"
    password = "xxx"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}

• 启动seata：.\seata-server.bat，端口默认占用 8091

1. 集成到服务消费者

• 添加依赖（下面版本为定制化后定义的版本）：

<dependency>
    <groupId>io.seata</groupId>
    <artifactId>seata-spring-boot-starter</artifactId>
    <version>1.4.0-BETA-3</version>
</dependency>

• 拷贝服务端的registry.conf到工程下的resources目录中，内容无需修改
• 创建file.conf到resources目录下，官网有提供，可以下一个模板过来
• 修改file.conf内容

service {
  disableGlobalTransaction = false
  vgroupMapping.stdv6_tx_group = "default"
  enableDegrade = false
  #disable seata
  disableGlobalTransaction = false
  max.commit.retry.timeout = "-1"
  max.rollback.retry.timeout = "-1"
}

• 配置seata相关yml配置

# seata相关配置
seata:
  tx-service-group: stdv6_tx_group
  registry:
    type: nacos
    nacos:
    application: seata-server
    server-addr: 127.0.0.1:8848
    group: "SEATA_GROUP"