# seata-sample

**Repository Path**: liuyu2783/seata-sample

## Basic Information

- **Project Name**: seata-sample
- **Description**: springboot + seata + mybatisplus
- **Primary Language**: Java
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 1
- **Created**: 2021-12-02
- **Last Updated**: 2022-03-09

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

## docker安装nacos

```sh
[root@iZ2zegjlrhr7fupkuelr9fZ ~]docker pull nacos/nacos-server
[root@iZ2zegjlrhr7fupkuelr9fZ ~]docker run -d --name nacos -p 28999:8848 --env MODE=standalone  nacos/nacos-server
```

安装完成访问：http://10.26.2.86:28999/nacos/index.html

默认密码：nacos/nacos

## docker安装seata

在/usr/local/seata_1.4.2/conf目录下创建配置文件

file.conf

```properties
## transaction log store, only used in seata-server
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.jdbc.Driver"
    url = "jdbc:mysql://10.26.2.86:3306/seata?useUnicode=true&characterEncoding=UTF-8&serverTimezone=Asia/Shanghai"
    user = "root"
    password = "asdw@123"
    minConn = 5
    maxConn = 100
    globalTable = "global_table"
    branchTable = "branch_table"
    lockTable = "lock_table"
    queryLimit = 100
    maxWait = 5000
  }
}
```

registry.conf

```properties
registry {
  #seata 的注册中心使用nacos 还可以使用eureka等
  type = "nacos"
  nacos {
    #seata server名字
    application = "seata-server"
    #注册中心地址  现在是nacos
    serverAddr = "10.26.2.86:8848"
    #分组名
   group = "SEATA_GROUP"
   #集群名称 默认default
   cluster = "default"
  }
}

config {
  #seata 的配置中心使用nacos 还可以使用file本地配置等
  type = "file"

  file {
    name = "file:/usr/local/seata_1.4.2/conf/file.conf"
  }
}

```

启动docker

```sh
[root@iZ2zegjlrhr7fupkuelr9fZ ~]# docker pull seataio/seata-server:1.4.2
[root@iZ2zegjlrhr7fupkuelr9fZ seata_1.4.2]# docker run --name seata -d \
> -e SEATA_IP=10.26.2.86 \
> -e SEATA_PORT=8091 \
> -v /usr/local/seata_1.4.2/conf/registry.conf:/seata-server/resources/registry.conf \
> -v /usr/local/seata_1.4.2/logs:/root/logs \
> --privileged=true \
> -p 8091:8091 \
>  seataio/seata-server:1.4.2
```



## seata1.4.2 集成openfeign不能回滚的问题

在一般情况如： A服务调用B服务且A服务调用C服务，即A-B & A-C这种服务调用链路，当其中任意一个服务报错，事务是可以回滚的。

**但是**

A -> B -> C，这种调用链路，seata就不会回滚了！！

### 解决办法

1、首先确保你引入了`spring-cloud-starter-alibaba-seata`的依赖.

2、如果xid还无法传递,请确认你是否实现了WebMvcConfigurer,如果是,请参考com.alibaba.cloud.seata.web.SeataHandlerInterceptorConfiguration#addInterceptors的方法.把SeataHandlerInterceptor加入到你的拦截链路中.

3、在调用方新增配置，手动在header添加xid参数