Golang学习之Web应用程序的表单验证实践

type User struct {
    Name     string `form:"name" binding:"required"`
    Password string `form:"password" binding:"required,min=6,max=20"`
    Email    string `form:"email" binding:"required,email"`
    Phone    string `form:"phone" binding:"required,phone"`
}

router.POST("/register", func(c *gin.Context) {
    var user User
    if err := c.ShouldBind(&user); err != nil {
        c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
        return
    }

    // 数据验证通过，提交到Web服务器处理
    c.JSON(http.StatusOK, gin.H{"success": "注册成功"})
})

import (
    "net/http"

    "github.com/gin-gonic/gin"
    "github.com/go-playground/validator/v10"
)

// 自定义验证函数
var validate *validator.Validate

func init() {
    validate = validator.New()
    validate.RegisterValidation("phone", validatePhone)
}

func validatePhone(fl validator.FieldLevel) bool {
    phone := fl.Field().String()
    if phone == "" {
        return true
    }
    if !regexp.MustCompile(`^1[3456789]d{9}$`).MatchString(phone) {
        return false
    }
    return true
}

if err := validate.Struct(user); err != nil {
    c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
    return
}