百万级并发IM即时消息系统（2）

1.用户model


type UserBasic struct {gorm.ModelName          stringPassWord      stringPhone         string `valid:"matches(^1[3-9]{1}\\d{9}$)"`Email         string `valid:"email"`Avatar        string //头像Identity      stringClientIp      stringClientPort    stringSalt          stringLoginTime     time.TimeHeartbeatTime time.TimeLoginOutTime  time.Time `gorm:"column:login_out_time" json:"login_out_time"`IsLogout      boolDeviceInfo    string
}

2.gorm引入

golang学习之gorm(一):Gorm介绍_golang gorm_浅弋、璃鱼的博客-CSDN博客

1)连接数据库db, err := gorm.Open(mysql.Open() )

2）创建或者更新一张和指定strcut结构一样的表db.AutoMigrate(&models.UserBasic{})

3)增db.Create(user)

4)删db.Delete(&product, 1)

5)改db.Model(user).Update("PassWord", "1234")

6)查db.First(user, 1)，查主键为1的user

/**
* @Auth:ShenZ
* @Description:
* @CreateDate:2022/06/15 10:57:44*/
package mainimport ("fmt""ginchat/models""gorm.io/driver/mysql""gorm.io/gorm"
)func main() {//gorm连接指定ip的数据库db, err := gorm.Open(mysql.Open("root:tx2311571602@tcp(127.0.0.1:3306)/ginchat?charset=utf8mb4&parseTime=True&loc=Local"), &gorm.Config{})if err != nil {panic("failed to connect database")}// 迁移 schema，用传入的模型格式更新一张表结构//db.AutoMigrate(&models.Community{})db.AutoMigrate(&models.UserBasic{})//db.AutoMigrate(&models.Message{})//db.AutoMigrate(&models.GroupBasic{})//db.AutoMigrate(&models.Contact{})// Createuser := &models.UserBasic{}user.Name = "申专"db.Create(user)// // Readfmt.Println(db.First(user, 1)) // 根据整型主键查找第一条记录//db.First(user, "code = ?", "D42") // 查找 code 字段值为 D42 的记录// Update - 将 product 的 price 更新为 200db.Model(user).Update("PassWord", "1234")// Update - 更新多个字段//db.Model(&product).Updates(Product{Price: 200, Code: "F42"}) // 仅更新非零值字段//db.Model(&product).Updates(map[string]interface{}{"Price": 200, "Code": "F42"})// Delete - 删除 product//db.Delete(&product, 1)
}