# weibo_demo

**Repository Path**: lgc653/weibo_demo

## Basic Information

- **Project Name**: weibo_demo
- **Description**: No description available
- **Primary Language**: Unknown
- **License**: Not specified
- **Default Branch**: master
- **Homepage**: None
- **GVP Project**: No

## Statistics

- **Stars**: 0
- **Forks**: 0
- **Created**: 2024-08-14
- **Last Updated**: 2024-10-08

## Categories & Tags

**Categories**: Uncategorized

**Tags**: None

## README

# weibo_demo

## DEMO配置讲解

### 安装seata

这里采用最简单的无注册中心，file存储，该模式下，不需要注册中心，也不需要任何第三方存储中心。

`docker-compose.yaml`

```yaml
version: "3.1"
services:
  seata-server:
    image: seataio/seata-server:latest
    hostname: seata-server
    ports:
      - "7091:7091"
      - "8091:8091"
    environment:
      - SEATA_PORT=8091
      - STORE_MODE=file
    volumes:
      - "/usr/share/zoneinfo/Asia/Shanghai:/etc/localtime"
      - "/usr/share/zoneinfo/Asia/Shanghai:/etc/timezone"
```

启动seata

```sh
cd /root/weibo_demo
docker-compose up

[+] Running 1/0
 ✔ Container weibo_demo-seata-server-1  Created                                                                                     0.0s 
Attaching to seata-server-1
```

### 修改配置

`src\main\resources\file.conf`，主要是设置default.grouplis为刚才的seata的地址

```groovy
service {
  vgroupMapping.my_test_tx_group = "default"
  default.grouplist = "172.25.187.132:8091"
}
```

数据库中追加表

```sql
CREATE TABLE IF NOT EXISTS `undo_log`
(
    `branch_id`     BIGINT       NOT NULL COMMENT 'branch transaction id',
    `xid`           VARCHAR(128) NOT NULL COMMENT 'global transaction id',
    `context`       VARCHAR(128) NOT NULL COMMENT 'undo_log context,such as serialization',
    `rollback_info` LONGBLOB     NOT NULL COMMENT 'rollback info',
    `log_status`    INT(11)      NOT NULL COMMENT '0:normal status,1:defense status',
    `log_created`   DATETIME(6)  NOT NULL COMMENT 'create datetime',
    `log_modified`  DATETIME(6)  NOT NULL COMMENT 'modify datetime',
    UNIQUE KEY `ux_undo_log` (`xid`, `branch_id`)
    ) ENGINE = InnoDB AUTO_INCREMENT = 1 DEFAULT CHARSET = utf8mb4 COMMENT ='AT transaction mode undo table';
ALTER TABLE `undo_log` ADD INDEX `ix_log_created` (`log_created`);
```

### 运行测试代码

把项目跑起来，通过curl测试，例如在power shell下面

```sh
$uri = "http://localhost:8080/weibo/publish"
$content = '这是我发布的微博内容!'
$response = Invoke-RestMethod -Uri $uri -Method Post -Body $content -ContentType "application/json"
$response
```

得到结果

```sh
微博发布成功!
```

观察seata-server、db、redis，检验事务是否成功

## docker-compose.yaml参考

```yaml
version: "3.1"

services:
  mysql:
    image: mysql:5.7
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: root
      MYSQL_DATABASE: seata
    ports:
      - "3306:3306"
    volumes:
      - ./mysql-data:/var/lib/mysql

  redis:
    image: redis:6.2-alpine
    restart: always
    ports:
      - "6379:6379"

  seata-server:
    image: seataio/seata-server:latest
    ports:
      - "7091:7091"
      - "8091:8091"
    environment:
      - SEATA_PORT=8091
      - STORE_MODE=file
    volumes:
      - "/usr/share/zoneinfo/Asia/Shanghai:/etc/localtime"
      - "/usr/share/zoneinfo/Asia/Shanghai:/etc/timezone"

  my-spring-boot-app:
    build: ./my-spring-boot-app # Replace with your Spring Boot app directory
    depends_on:
      - mysql
      - redis  
      - seata-server
    ports:
      - "8080:8080"
```