SpringCloud+Fegin+Mybatis+Seata 1.4.0 + Eureka的配置和使用

约定不等于承诺〃 2022-11-12 12:53 7阅读 0赞

## SpringCloud+Fegin+Mybatis+Seata 1.4.0 + Eureka的配置和使用 ##

背景：由于公司业务发展，业务服务被进一步细化，因此不可避免的遇到了分布式事务问题，因此调研了下阿里开源的分布式事务组件seata并记录下初步配置过程(ps:阿里的开源文档真的坑太多).  
一、环境配置

1.  软件下载  
    [seata-server1.4.1][]
2.  修改seata-server配置文件  
    ①修改registry.conf

---指定注册中心;
    registry {
      # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
      type = "eureka"
      loadBalance = "RandomLoadBalance"
      loadBalanceVirtualNodes = 10
      eureka {
        serviceUrl = "http://localhost:8761/eureka"
        application = "default"
        weight = "1"
      }
    }
    ---指定配置中心;
    config {
      # file、nacos 、apollo、zk、consul、etcd3
      type = "file"
      file {
        name = "file.conf"
      }
    }

②修改file.conf  
注意和file.conf.example中的保持一致就好了，不要看网络上一些人瞎写的

transport {
      # tcp, unix-domain-socket
      type = "TCP"
      #NIO, NATIVE
      server = "NIO"
      #enable heartbeat
      heartbeat = true
      # the client batch send request enable
      enableClientBatchSendRequest = false
      #thread factory for netty
      threadFactory {
        bossThreadPrefix = "NettyBoss"
        workerThreadPrefix = "NettyServerNIOWorker"
        serverExecutorThreadPrefix = "NettyServerBizHandler"
        shareBossWorker = false
        clientSelectorThreadPrefix = "NettyClientSelector"
        clientSelectorThreadSize = 1
        clientWorkerThreadPrefix = "NettyClientWorkerThread"
        # netty boss thread size
        bossThreadSize = 1
        #auto default pin or 8
        workerThreadSize = "default"
      }
      shutdown {
        # when destroy server, wait seconds
        wait = 3
      }
      serialization = "seata"
      compressor = "none"
    }
    
    ## transaction log store, only used in server side
    store {
      ## store mode: file、db
      mode = "db"
      ## database store property
      db {
        ## the implement of javax.sql.DataSource, such as DruidDataSource(druid)/BasicDataSource(dbcp) etc.
        datasource = "druid"
        ## mysql/oracle/postgresql/h2/oceanbase etc.
        dbType = "mysql"
        driverClassName = "com.mysql.cj.jdbc.Driver"
        url = "jdbc:mysql://127.0.0.1:3306/seata?useUnicode=true&characterEncoding=utf-8&useSSL=false&serverTimezone=GMT%2B8"
        user = "root"
        password = "fangshuoit"
        minConn = 5
        maxConn = 30
        globalTable = "global_table"
        branchTable = "branch_table"
        lockTable = "lock_table"
        queryLimit = 100
      }
    }
    
    ## server configuration, only used in server side
    server {
      recovery {
        #schedule committing retry period in milliseconds
        committingRetryPeriod = 1000
        #schedule asyn committing retry period in milliseconds
        asynCommittingRetryPeriod = 1000
        #schedule rollbacking retry period in milliseconds
        rollbackingRetryPeriod = 1000
        #schedule timeout retry period in milliseconds
        timeoutRetryPeriod = 1000
      }
      undo {
        logSaveDays = 7
        #schedule delete expired undo_log in milliseconds
        logDeletePeriod = 86400000
      }
      #check auth
      enableCheckAuth = true
      #unit ms,s,m,h,d represents milliseconds, seconds, minutes, hours, days, default permanent
      maxCommitRetryTimeout = "-1"
      maxRollbackRetryTimeout = "-1"
      rollbackRetryTimeoutUnlockEnable = false
    }
    
    ## metrics configuration, only used in server side
    metrics {
      enabled = false
      registryType = "compact"
      # multi exporters use comma divided
      exporterList = "prometheus"
      exporterPrometheusPort = 9898
    }

1.  数据库配置  
    数据库配置SQL使用对应版本的seata-server源码script下的就好了  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70]
2.  启动seata  
    windows下双击seata-server.bat就好了  
    二、项目配置
3.  指定注册中心和配置中心相关属性就好了，此处使用的是file，因此在config节点中指定的是file类型  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70 1]
4.  配置客户端事务属性;  
    客户端配置需要着重声明事务组配置  
    ![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70 2]  
    三、Seata所需的文件分享  
    [springcloud-eureka-feign-mybatis-seata搭建分布式事务的demo][springcloud-eureka-feign-mybatis-seata_demo]

[seata-server1.4.1]: https://download.csdn.net/download/zj20142213/16083906
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70]: /images/20221022/f053d6af19e545f780b35265a3e7fddb.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70 1]: /images/20221022/a490fd273c0b4e47b4c36c8469329916.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3pqMjAxNDIyMTM_size_16_color_FFFFFF_t_70 2]: /images/20221022/3b1b09b01c544c19adf29de7de190ba7.png
[springcloud-eureka-feign-mybatis-seata_demo]: https://download.csdn.net/download/zj20142213/16083836