//  对于以下变量即使global.ServerSetting发生变化也是不会更新的
	gin.SetMode(global.ServerSetting.RunMode)

	router := routers.NewRouter()
	s := &http.Server{
		Addr:           ":" + global.ServerSetting.HttpPort,
		Handler:        router,
		ReadTimeout:    global.ServerSetting.ReadTimeout,
		WriteTimeout:   global.ServerSetting.WriteTimeout,
		MaxHeaderBytes: 1 << 20,
	}
       ...

        ...
        //  因为超时中间件参数是值传递，所以即使global.AppSetting.DefaultContextTimeout发生改变，该中间件还是只会使用首次注册时的参数值
	r.Use(middleware.ContextTimeout(global.AppSetting.DefaultContextTimeout))

func ContextTimeout(d *time.Duration) gin.HandlerFunc {
	return func(c *gin.Context) {
		ctx, cancel := context.WithTimeout(c.Request.Context(), *d)
                defer cancel()

		c.Request = c.Request.WithContext(ctx)
		c.Next()
	}
}

global.AppSetting.DefaultContextTimeout *= time.Second
global.JWTSetting.Expire *= time.Second
global.ServerSetting.ReadTimeout *= time.Second
global.ServerSetting.WriteTimeout *= time.Second

func (s *Setting) ReloadAllSection() error {
	for k, v := range sections {
		err := s.ReadSection(k, v)
		if err != nil {
			return err
		}
	}

	return nil
}

			err := defailtMailer.SendMail(
				global.EmailSetting.To,
				fmt.Sprintf("异常抛出，发生时间: %d", time.Now().Unix()),
				fmt.Sprintf("错误信息: %v", err),
			)
			if err != nil {
				global.Logger.Panicf(c, "mail.SendMail err: %v", err)
			}

			app.NewResponse(c).ToErrorResponse(errcode.ServerError)
			c.Abort()
		}
	}()

fatal error: concurrent map read and map write

goroutine 139 [running]:
runtime.throw(0x4a46303, 0x21)
	/usr/local/go/src/runtime/panic.go:1116 +0x72 fp=0xc001b0c208 sp=0xc001b0c1d8 pc=0x4034962
runtime.mapaccess2(0x491bee0, 0xc0005cb080, 0xc001b0c288, 0x0, 0xc001a39601)
	/usr/local/go/src/runtime/map.go:469 +0x258 fp=0xc001b0c248 sp=0xc001b0c208 pc=0x400fbd8
github.com/go-playground/validator/v10.(*Validate).RegisterTranslation(0xc00008e4e0, 0x4a31dce, 0xc, 0x4bbb0e0, 0xc001a3bb60, 0xc001acc690, 0x4a6d278, 0x0, 0x0)
	/Users/hxj/godevspace/pkg/mod/github.com/go-playground/validator/[email protected]/validator_instance.go:261 +0xb0 fp=0xc001b0c2a8 sp=0xc001b0c248 pc=0x43ea6c0
github.com/go-playground/validator/v10/translations/zh.RegisterDefaultTranslations(0xc00008e4e0, 0x4bbb0e0, 0xc001a3bb60, 0x0, 0x62fdf00)
	/Users/hxj/godevspace/pkg/mod/github.com/go-playground/validator/[email protected]/translations/zh/zh.go:1321 +0x4f9 fp=0xc001b0d3b0 sp=0xc001b0c2a8 pc=0x480bfd9
github.com/go-programming-tour-book/blog-service/internal/middleware.Translations.func1(0xc000398000)
	/Users/hxj/Work/work_go/go-programming-tour-book/blog-service/internal/middleware/translations.go:30 +0x1ea fp=0xc001b0d458 sp=0xc001b0d3b0 pc=0x4816a8a
github.com/gin-gonic/gin.(*Context).Next(0xc000398000)
	/Users/hxj/godevspace/pkg/mod/github.com/gin-gonic/[email protected]/context.go:161 +0x3b fp=0xc001b0d478 sp=0xc001b0d458 pc=0x45e9f8b
github.com/go-programming-tour-book/blog-service/internal/middleware.ContextTimeout.func1(0xc000398000)
	/Users/hxj/Work/work_go/go-programming-tour-book/blog-service/internal/middleware/context_timeout.go:16 +0x14f fp=0xc001b0d4f8 sp=0xc001b0d478 pc=0x48161df
github.com/gin-gonic/gin.(*Context).Next(0xc000398000)
	/Users/hxj/godevspace/pkg/mod/github.com/gin-gonic/[email protected]/context.go:161 +0x3b fp=0xc001b0d518 sp=0xc001b0d4f8 pc=0x45e9f8b
github.com/go-programming-tour-book/blog-service/internal/middleware.RateLimiter.func1(0xc000398000)
	/Users/hxj/Work/work_go/go-programming-tour-book/blog-service/internal/middleware/limiter.go:23 +0x89 fp=0xc001b0d568 sp=0xc001b0d518 pc=0x4816449

// 在global包中定义全局变量

var Trans  ut.Translator

// InitTrans 初始化翻译器
func InitTrans(locale string) (err error) {
	// 修改gin框架中的Validator引擎属性，实现自定制
	if v, ok := binding.Validator.Engine().(*validator.Validate); ok {
		zhT := zh.New() // 中文翻译器
		enT := en.New() // 英文翻译器
		// 第一个参数是备用（fallback）的语言环境
		// 后面的参数是应该支持的语言环境（支持多个）
		// uni := ut.New(zhT, zhT) 也是可以的
		uni := ut.New(enT, zhT, enT)

		// locale 通常取决于 http 请求头的 'Accept-Language'
		var ok bool
		// 也可以使用 uni.FindTranslator(...) 传入多个locale进行查找
		global.Trans, ok = uni.GetTranslator(locale)
		if !ok {
			return fmt.Errorf("uni.GetTranslator(%s) failed", locale)
		}
		// 注册翻译器
		switch locale {
		case "en":
			err = enTranslations.RegisterDefaultTranslations(v, global.Trans)
		case "zh":
			err = zhTranslations.RegisterDefaultTranslations(v, global.Trans)
		default:
			err = enTranslations.RegisterDefaultTranslations(v, global.Trans)
		}
		return
	}
	return
}

func main() {

        if err := InitTrans("zh"); err != nil {
		fmt.Printf("init trans failed, err:%v\n", err)
		return
	}
        ......
}

BindAndValid(){
// 直接用全局变量
for key, value := range verrs.Translate(global.Trans) {
 ....
}
}

2020/07/16 00:03:10 {"caller":["/home/vaniot/dev/blog-service/main.go: 21 main.init.0"],"level":"error","message":"svc.UpdateArticle err: sql: expected 10 arguments, got 9","time":1594828990988757269}

// @Param tag_id body string true "标签ID"
// @Param title body string true "文章标题"
// @Param desc body string false "文章简述"
// @Param cover_image_url body string true "封面图片地址"
// @Param content body string true "文章内容"
// @Param created_by body int true "创建者"

type Article struct {
	*Model
	Title         string `json:"title"`
	Desc          string `json:"desc"`
	Content       string `json:"content"`
	CoverImageUrl string `json:"cover_image_url"`
	State         uint8  `json:"state"`
}

@Param - body  Article  true  "标签ID"