# fescar

**Repository Path**: zyy110/fescar

## Basic Information

- **Project Name**: fescar
- **Description**: seata 分布式事务demo

- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 1
- **Forks**: 0
- **Created**: 2020-07-07
- **Last Updated**: 2021-12-16

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# fescar

#### 介绍
seata 1.2 分布式事务 demo


#### 软件架构
软件架构说明


#### 使用说明


 1.修改registry.conf 配置文件   
 ``` 
      registry {
          # file 、nacos 、eureka、redis、zk、consul、etcd3、sofa
          type = "eureka"

          nacos {
            application = "seata-server"
            serverAddr = "localhost"
            namespace = ""
            cluster = "default"
            username = ""
            password = ""
          }
          eureka {
            serviceUrl = "http://localhost:7001/eureka"
            application = "seata-server"
            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 = "file"
        
          nacos {
            serverAddr = "localhost"
            namespace = ""
            group = "SEATA_GROUP"
            username = ""
            password = ""
          }
          consul {
            serverAddr = "127.0.0.1:8500"
          }
          apollo {
            appId = "seata-server"
            apolloMeta = "http://192.168.1.204:8801"
            namespace = "application"
          }
          zk {
            serverAddr = "127.0.0.1:2181"
            sessionTimeout = 6000
            connectTimeout = 2000
            username = ""
            password = ""
          }
          etcd3 {
            serverAddr = "http://localhost:2379"
          }
          file {
            name = "file.conf"
          }
        }
```
2. 修改 file.conf
```

## seata-service
service {
  #交易服务组映射 的组名称必须要与客户端一致 my_test_tx_group  seata-server必须要与registrt.conf 一致
  #transaction service group mapping
  #TODO 修改 hxlh_tx_group为自己设置的事务组名称，seata-server不是事务组的名称，这里可以随便起名
  vgroupMapping.my_test_tx_group = "defult"
  #only support when registry.type=file, please don't set multiple addresses
}


## transaction log store, only used in seata-server
store {
  ## store mode: file、db
  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) etc.
    datasource = "druid"
    ## mysql/oracle/postgresql/h2/oceanbase etc.
    dbType = "mysql"
    driverClassName = "com.mysql.jdbc.Driver"
    url = "jdbc:mysql://127.0.0.1:3306/seata"
    user = "root"
    password = "123456"
    minConn = 5
    maxConn = 30
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}

```
3. 建立seata分布式事务用到的数据库
```
CREATE TABLE `branch_table` (
  `branch_id` bigint(20) NOT NULL,
  `xid` varchar(128) NOT NULL,
  `transaction_id` bigint(20) DEFAULT NULL,
  `resource_group_id` varchar(32) DEFAULT NULL,
  `resource_id` varchar(256) DEFAULT NULL,
  `branch_type` varchar(8) DEFAULT NULL,
  `status` tinyint(4) DEFAULT NULL,
  `client_id` varchar(64) DEFAULT NULL,
  `application_data` varchar(2000) DEFAULT NULL,
  `gmt_create` datetime(6) DEFAULT NULL,
  `gmt_modified` datetime(6) DEFAULT NULL,
  PRIMARY KEY (`branch_id`),
  KEY `idx_xid` (`xid`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

```
```
CREATE TABLE `global_table` (
  `xid` varchar(128) NOT NULL,
  `transaction_id` bigint(20) DEFAULT NULL,
  `status` tinyint(4) NOT NULL,
  `application_id` varchar(32) DEFAULT NULL,
  `transaction_service_group` varchar(32) DEFAULT NULL,
  `transaction_name` varchar(128) DEFAULT NULL,
  `timeout` int(11) DEFAULT NULL,
  `begin_time` bigint(20) DEFAULT NULL,
  `application_data` varchar(2000) DEFAULT NULL,
  `gmt_create` datetime DEFAULT NULL,
  `gmt_modified` datetime DEFAULT NULL,
  PRIMARY KEY (`xid`),
  KEY `idx_gmt_modified_status` (`gmt_modified`,`status`),
  KEY `idx_transaction_id` (`transaction_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

```
```
CREATE TABLE `lock_table` (
  `row_key` varchar(128) NOT NULL,
  `xid` varchar(96) DEFAULT NULL,
  `transaction_id` bigint(20) DEFAULT NULL,
  `branch_id` bigint(20) NOT NULL,
  `resource_id` varchar(256) DEFAULT NULL,
  `table_name` varchar(32) DEFAULT NULL,
  `pk` varchar(36) DEFAULT NULL,
  `gmt_create` datetime DEFAULT NULL,
  `gmt_modified` datetime DEFAULT NULL,
  PRIMARY KEY (`row_key`),
  KEY `idx_branch_id` (`branch_id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

```
#### 参与贡献

1.  Fork 本仓库
2.  新建 Feat_xxx 分支
3.  提交代码
4.  新建 Pull Request


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