后台用户登录验证功能是很多项目的必须要有的逻辑 , 也是常见的技术需求 .

要实现这个逻辑首先要有数据库表结构如下:

CREATE TABLE `user` ( `id` int(11) NOT NULL AUTO_INCREMENT, `name` varchar(50) NOT NULL DEFAULT '', `password` varchar(50) NOT NULL DEFAULT '', `nickname` varchar(50) NOT NULL DEFAULT '', `created_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `updated_at` timestamp NOT NULL DEFAULT CURRENT_TIMESTAMP, `deleted_at` timestamp NULL DEFAULT NULL, `avator` varchar(100) NOT NULL DEFAULT '', PRIMARY KEY (`id`), KEY `idx_name` (`name`)) ENGINE=InnoDB DEFAULT CHARSET=utf8

gin框架路由入口去获取post的数据

func LoginCheckPass(c *gin.Context) { password := c.PostForm("password") username := c.PostForm("username") info, uRole, ok := CheckKefuPass(username, password) userinfo := make(map[string]interface{}) if !ok { c.JSON(200, gin.H{ "code": 400, "msg": "验证失败", }) return } userinfo["name"] = info.Name userinfo["kefu_id"] = info.ID userinfo["type"] = "kefu" if uRole.RoleId != 0 { userinfo["role_id"] = uRole.RoleId } else { userinfo["role_id"] = 2 } userinfo["create_time"] = time.Now().Unix() token, _ := tools.MakeToken(userinfo) userinfo["ref_token"] = true refToken, _ := tools.MakeToken(userinfo) c.JSON(200, gin.H{ "code": 200, "msg": "验证成功,正在跳转", "result": gin.H{ "token": token, "ref_token": refToken, "create_time": userinfo["create_time"], }, })}

先忽略掉生成token部分 ,只看查询数据库用户名密码部分

func CheckKefuPass(username string, password string) (models.User, models.User_role, bool) { info := models.FindUser(username) var uRole models.User_role if info.Name == "" || info.Password != tools.Md5(password) { return info, uRole, false } uRole = models.FindRoleByUserId(info.ID) return info, uRole, true}

model里面

func FindUser(username string) User { var user User DB.Where("name = ?", username).First(&user) return user}

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