golang gin配置：支持中文参数

代码

package main

import (
  "fmt"
  "reflect"
  "strings"

  "github.com/gin-gonic/gin"
  "github.com/gin-gonic/gin/binding"
  "github.com/go-playground/locales/zh"
  ut "github.com/go-playground/universal-translator"
  "github.com/go-playground/validator/v10"
  zhTranslations "github.com/go-playground/validator/v10/translations/zh"
)

type LoginForm struct {
  UserName   string `json:"username" binding:"required,min=3,max=7"`
  Password   string `json:"password" binding:"required,len=8"`
  RePassword string `json:"re_password" binding:"required,len=8,eqfield=Password"`
}
type RegisterForm struct {
  UserName string `json:"username" binding:"required,min=3,max=7"`
  Password string `json:"password" binding:"required,len=8"`
  Age      uint32 `json:"age" binding:"required,gte=1,lte=150"`
  Sex      uint32 `json:"sex" binding:"required"`
  Email    string `json:"email" binding:"required,email"`
}

var trans ut.Translator

/**
支持中文
*/
func main() {
  if err := InitializeTrans(); err != nil {
    fmt.Println(err.Error())
  }
  r := gin.Default()
  // 登录
  r.POST("login", loginHandler)
  // 注册
  r.POST("register", registerHandler)
  r.Run()
}

// registerHandler  注册
func registerHandler(c *gin.Context) {
  var r RegisterForm
  if err := c.ShouldBindJSON(&r); err != nil {
    err, ok := err.(validator.ValidationErrors)
    if !ok {
      c.JSON(200, gin.H{
        "code": 40010,
        "msg":  "注册失败",
        "err":  err.Error(),
      })
      return
    }
    c.JSON(200, gin.H{
      "code": 40004,
      "msg":  "注册失败，请检测参数",
      "err":  removeTopStruct(err.Translate(trans)),
    })
    return
  }
  // 注册成功
  c.JSON(200, gin.H{
    "code": 0,
    "msg":  "success",
    "data": r,
  })
}

// loginHandler 登录
func loginHandler(c *gin.Context) {
  var l LoginForm
  if err := c.ShouldBindJSON(&l); err != nil {
    err, ok := err.(validator.ValidationErrors)
    if !ok {
      c.JSON(200, gin.H{
        "code": 40010,
        "msg":  "登录失败",
        "err":  err.Error(),
      })
      return
    }
    c.JSON(200, gin.H{
      "code": 40004,
      "msg":  "登录失败，请检测参数",
      "err":  removeTopStruct(err.Translate(trans)),
    })
    return
  }
  // 登录成功
  c.JSON(200, gin.H{
    "code": 0,
    "msg":  "success",
    "data": l.UserName,
  })
}
func InitializeTrans() (err error) {
  //配置gin以支持中文
  // Accept-Language
  // 修改gin框架validator引擎属性
  if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
    v.RegisterTagNameFunc(func(fld reflect.StructField) string {
      name := fld.Tag.Get("json")
      return name
    })
    zhT := zh.New()
    uni := ut.New(zhT, zhT)
    trans, _ = uni.GetTranslator("zh")
    err = zhTranslations.RegisterDefaultTranslations(v, trans)
    return
  }
  return
}
func removeTopStruct(fields validator.ValidationErrorsTranslations) validator.ValidationErrorsTranslations {
  r := make(validator.ValidationErrorsTranslations)
  for f, v := range fields {
    r[f[strings.Index(f, ".")+1:]] = v
  }
  return r
}

测试