seata-dubbo-nacos-cloud: seate(server使用db模式,使用nacos作为配置和注册中心)+dubbo+nacos(注册中心)+jpa(数据库操作框架)

seate(server使用db模式,使用nacos作为配置和注册中心)+dubbo+nacos(注册中心)+jpa(数据库操作框架)

### 一些文档
>    官网
>    https://seata.io/zh-cn/index.html
>    版本说明
>    https://github.com/alibaba/spring-cloud-alibaba/wiki/%E7%89%88%E6%9C%AC%E8%AF%B4%E6%98%8E
>    官方demo
>    https://github.com/seata/seata-samples

### 介绍
> 这里使用的版本是:seata-server-1.4.0
> 启动方式: sh seata-server.sh  -p 8091 -h 192.168.31.211

### 创建数据库
> 在consumer,provider,provider-two的库中分别创建undo_log表
>

```
-- 注意此处0.3.0+ 增加唯一索引 ux_undo_log
CREATE TABLE `undo_log` (
  `id` bigint(20) NOT NULL AUTO_INCREMENT,
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(100) NOT NULL,
  `context` varchar(128) 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`),
  UNIQUE KEY `ux_undo_log` (`xid`,`branch_id`)
) ENGINE=InnoDB AUTO_INCREMENT=1 DEFAULT CHARSET=utf8;
```
### nacos 服务端

创建nacos server使用的数据库
脚本为:seata-server-mysql.sql

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

nacos {
    application = "seata-server"
    serverAddr = "192.168.31.211:8848"
    group = "SEATA_GROUP"
    namespace = ""
    cluster = "default"
    username = "nacos"
    password = "nacos"
  }
  eureka {
    serviceUrl = "http://localhost:8761/eureka"
    application = "default"
    weight = "1"
  }
  redis {
    serverAddr = "localhost:6379"
    db = 0
    password = ""
    cluster = "default"
    timeout = 0
  }
  zk {
    cluster = "default"
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
  }
  consul {
    cluster = "default"
    serverAddr = "127.0.0.1:8500"
  }
  etcd3 {
    cluster = "default"
    serverAddr = "http://localhost:2379"
  }
  sofa {
    serverAddr = "127.0.0.1:9603"
    application = "default"
    region = "DEFAULT_ZONE"
    datacenter = "DefaultDataCenter"
    cluster = "default"
    group = "SEATA_GROUP"
    addressWaitTime = "3000"
  }
  file {
    name = "file.conf"
  }
}

config {
  # file、nacos 、apollo、zk、consul、etcd3
  type = "nacos"

nacos {
    serverAddr = "192.168.31.211:8848"
    namespace = ""
    group = "SEATA_GROUP"
    username = "nacos"
    password = "nacos"
  }
  consul {
    serverAddr = "127.0.0.1:8500"
  }
  apollo {
    appId = "seata-server"
    apolloMeta = "http://192.168.1.204:8801"
    namespace = "application"
    apolloAccesskeySecret = ""
  }
  zk {
    serverAddr = "127.0.0.1:2181"
    sessionTimeout = 6000
    connectTimeout = 2000
    username = ""
    password = ""
  }
  etcd3 {
    serverAddr = "http://localhost:2379"
  }
  file {
    name = "file.conf"
  }
}

```

file.conf
```
## transaction log store, only used in seata-server
store {
  ## store mode: file、db、redis
  mode = "db"

## file store property
  file {
    ## store location dir
    dir = "sessionStore"
    # branch session size , if exceeded first try compress lockkey, still exceeded throws exceptions
    maxBranchSessionSize = 16384
    # globe session size , if exceeded throws exceptions
    maxGlobalSessionSize = 512
    # file buffer size , if exceeded allocate new buffer
    fileWriteBufferCacheSize = 16384
    # when recover batch read size
    sessionReloadReadSize = 100
    # async, sync
    flushDiskMode = async
  }

## 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.jdbc.Driver"
    url = "jdbc:mysql://192.168.31.211:3306/seata"
    user = "root"
    password = "123456"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }

## redis store property
  redis {
    host = "127.0.0.1"
    port = "6379"
    password = ""
    database = "0"
    minConn = 1
    maxConn = 10
    maxTotal = 100
    queryLimit = 100
  }

}
```

### 上传配置到nacos
文档:https://seata.io/zh-cn/docs/user/configuration/nacos.html
https://github.com/seata/seata/tree/develop/script/config-center

修改config.txt配置:
```
//注意这个my_test_tx_group 要和 application.properties 中一致
service.vgroupMapping.my_test_tx_group=default
// seata地址
service.default.grouplist=192.168.31.211:8091
// 使用db模式与server配置对应
store.mode=db
store.lock.mode=db
store.session.mode=db
store.db.url=jdbc:mysql://192.168.31.211:3306/seata?useUnicode=true&rewriteBatchedStatements=true
store.db.user=root
store.db.password=123456
```

把nacos-config.sh上传到服务器上，config.txt上传到把nacos-config.sh这个的父级目录
使用命令上传配置到nacos
```
sh nacos-config.sh -h 192.168.31.211 -p 8848 -g SEATA_GROUP -u nacos -w nacos
```

### 使用事物
在consumer项目的TestService中,使用了@GlobalTransactional开启分布式事物!

三千烦恼丝/seata-dubbo-nacos-cloud

简介

发行版

贡献者

近期动态

三千烦恼丝/seata-dubbo-nacos-cloud .gitee-modal { width: 500px !important; }

简介

发行版

贡献者

近期动态

搜索帮助

三千烦恼丝/seata-dubbo-nacos-cloud