golang 使用validator.v9做数据验证并输出中文

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

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