如何在Golang中实现Web表单验证规则扩展_Golang Web表单验证规则扩展方法汇总

type UserForm struct {
    Username string `validate:"required,min=3,max=20"`
    Email    string `validate:"required,email"`
    Age      int    `validate:"min=1,max=120"`
}

import "github.com/go-playground/validator/v10"

var validate *validator.Validate

func init() {
    validate = validator.New()
    // 注册自定义验证方法
    validate.RegisterValidation("mobile", validateMobile)
}

// 验证手机号格式
func validateMobile(fl validator.FieldLevel) bool {
    mobile := fl.Field().String()
    matched, _ := regexp.MatchString(`^1[3-9]\d{9}$`, mobile)
    return matched
}

func Validate(form interface{}) gin.HandlerFunc {
    return func(c *gin.Context) {
        if err := c.ShouldBind(form); err != nil {
            c.JSON(400, gin.H{"error": "绑定失败"})
            c.Abort()
            return
        }
        if err := validate.Struct(form); err != nil {
            c.JSON(400, gin.H{"error": err.Error()})
            c.Abort()
            return
        }
        c.Next()
    }
}

router.POST("/user", Validate(&UserForm{}), createUserHandler)

"username_required": "用户名不能为空",
"email_invalid": "邮箱格式不正确"