1.安装

go get gopkg.in/go-playground/validator.v9

2.使用

package main
 
import (
    "fmt"
    "github.com/go-playground/locales/zh"
    ut "github.com/go-playground/universal-translator"
    "gopkg.in/go-playground/validator.v9"
    zh_translations "gopkg.in/go-playground/validator.v9/translations/zh"
)
 
type User struct {
    Account string  `json:"account" validate:"required"`
    PassWord string  `json:"pass_word" validate:"required"`
}
 
func main()  {
    //获取数据
    account := ""
    pass_word := ""
    user := &User{}
    user.Account = account
    user.PassWord = pass_word
 
    //验证
    zh_ch := zh.New()
    validate := validator.New()
    uni := ut.New(zh_ch)
    trans, _ := uni.GetTranslator("zh")
    //验证器注册翻译器
    zh_translations.RegisterDefaultTranslations(validate, trans)
 
    err := validate.Struct(user)
    if err != nil {
        for _, err := range err.(validator.ValidationErrors) {
            fmt.Println(err.Translate(trans))
        }
        return
    }
}

最后输出:

Accout为必填字段
PassWord为必填字段

参考:https://www.jianshu.com/p/9ef19d5eac72](https://www.jianshu.com/p/9ef19d5eac72)

文档：https://godoc.org/gopkg.in/go-playground/validator.v9](https://godoc.org/gopkg.in/go-playground/validator.v9)

有疑问加站长微信联系（非本文作者）