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inhere avatar inhere commented on July 18, 2024 1

改成这样：

    myTemplate := "[{{datetime}}] [{{requestid}}] [{{level}}] {{message}}\n"
	// textFormatter := &slog.TextFormatter{TimeFormat: "2006-01-02 15:04:05.000"}
	// textFormatter.SetTemplate(myTemplate)
	// CHANGE 1 ....
	textFormatter :=slog.NewTextFormatter(myTemplate).Configure(func(f *slog.TextFormatter) {
		f.TimeFormat = "2006-01-02 15:04:05.000"
	})
	h1 := handler.NewConsoleHandler(slog.AllLevels)
	h1.SetFormatter(textFormatter)
	ctx := context.WithValue(context.Background(), "requestid", "111111")

	L := slog.New()
	L.AddHandlers(h1)
	// add processor <==== CHANGE 2
	L.AddProcessor(slog.ProcessorFunc(func(r *slog.Record) {
		r.Fields["requestid"] = r.Ctx.Value("requestid")
	}))
	L.WithCtx(ctx).Info("test")
  • 直接使用 &slog.TextFormatter{} 创建没有初始化字段导致报错。
  • 自定义字段需要添加 processor 来设置字段到 record.

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chanyipiaomiao avatar chanyipiaomiao commented on July 18, 2024

func TestLog(t *testing.T) {
myTemplate := "[{{datetime}}] [{{requestid}}] [{{level}}] {{message}}"
textFormatter := &slog.TextFormatter{TimeFormat: "2006-01-02 15:04:05.000"}
textFormatter.SetTemplate(myTemplate)
h1 := handler.NewConsoleHandler(slog.AllLevels)
h1.SetFormatter(textFormatter)
ctx := context.WithValue(context.Background(), "requestid", "111111")
L := slog.New()
L.AddHandlers(h1)
L.WithCtx(ctx).Info("test")
}
请问这样使用是否有问题，模板中的requestid没有被替换
image

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chanyipiaomiao avatar chanyipiaomiao commented on July 18, 2024

请帮忙看看 遇到 panic: assignment to entry in nil map 也不是必现，偶现 具体的错误堆栈信息如下:


panic: assignment to entry in nil map

goroutine 1165 [running]:
devops-alertcenter/internal/pkg/logger.Setup.func2(0xc0003eeb60)
	/app/devops_alertcenter/internal/pkg/logger/logger.go:64 +0x65
github.com/gookit/slog.ProcessorFunc.Process(0x9dd6fb?, 0x19b3328?)
	/gopath/pkg/mod/github.com/gookit/[email protected]/processor.go:27 +0x19
github.com/gookit/slog.(*Record).beforeHandle(0xc0003eeb60, 0xc00013e000)
	/gopath/pkg/mod/github.com/gookit/[email protected]/logger_write.go:55 +0x1d5
github.com/gookit/slog.(*Logger).writeRecord(0xc00013e000, 0x258, 0xc0003eeb60)
	/gopath/pkg/mod/github.com/gookit/[email protected]/logger_write.go:71 +0x15a
github.com/gookit/slog.(*Record).logf(0xc0003eeb60, 0x258, {0xc71ea9?, 0x0?}, {0xc000024a80?, 0x2?, 0xc000600400?})
	/gopath/pkg/mod/github.com/gookit/[email protected]/record.go:360 +0xd7
github.com/gookit/slog.(*Record).Infof(...)
	/gopath/pkg/mod/github.com/gookit/[email protected]/record.go:377
devops-alertcenter/internal/app/v1/logic.(*alertSender).send(0xc0001e1260)
	/app/devops_alertcenter/internal/app/v1/logic/alert.go:141 +0xb65
devops-alertcenter/internal/app/v1/logic.GeneralAlert({0x1589160?, 0xc000304180}, 0xc000102150)
	/app/devops_alertcenter/internal/app/v1/logic/general_alert.go:39 +0x268
devops-alertcenter/internal/app/v1/controller.(*GeneralAlertController).Alert(0xc0001e1340)
	/app/devops_alertcenter/internal/app/v1/controller/general_alert.go:40 +0x12f
devops-alertcenter/internal/app/v1/controller.AlertDispatchController(0xc00035cc00)
	/app/devops_alertcenter/internal/app/v1/controller/alert_dispatch.go:26 +0x14d
github.com/gofiber/fiber/v2.(*App).next(0xc0003b0f00, 0xc00035cc00)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/router.go:145 +0x1b2
github.com/gofiber/fiber/v2.(*Ctx).Next(0xc0003c08a0?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/ctx.go:1030 +0x4d
github.com/gofiber/fiber/v2/middleware/logger.New.func3(0xc00035cc00)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/middleware/logger/logger.go:119 +0x316
github.com/gofiber/fiber/v2.(*Ctx).Next(0xc00057a330?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/ctx.go:1027 +0x3d
github.com/gofiber/fiber/v2/middleware/cors.New.func1(0xc00035cc00)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/middleware/cors/cors.go:191 +0x326
github.com/gofiber/fiber/v2.(*Ctx).Next(0xc0000687d0?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/ctx.go:1027 +0x3d
github.com/gofiber/fiber/v2/middleware/healthcheck.New.func1(0xc00035cc00)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/middleware/healthcheck/healthcheck.go:41 +0x154
github.com/gofiber/fiber/v2.(*Ctx).Next(0xc00057a4e0?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/ctx.go:1027 +0x3d
devops-alertcenter/internal/app/server.StartHttpServer.func2(0xc00035cc00)
	/app/devops_alertcenter/internal/app/server/httpserver.go:78 +0xaf
github.com/gofiber/fiber/v2.(*Ctx).Next(0xc00032a000?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/ctx.go:1027 +0x3d
devops-alertcenter/internal/app/server.StartHttpServer.New.func6(0xb7ec20?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/middleware/requestid/requestid.go:31 +0xe5
github.com/gofiber/fiber/v2.(*App).next(0xc0003b0f00, 0xc00035cc00)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/router.go:145 +0x1b2
github.com/gofiber/fiber/v2.(*App).handler(0xc0003b0f00, 0x4cb24f?)
	/gopath/pkg/mod/github.com/gofiber/fiber/[email protected]/router.go:172 +0x78
github.com/valyala/fasthttp.(*Server).serveConn(0xc00036bc00, {0x158c0f0?, 0xc000482008})
	/gopath/pkg/mod/github.com/valyala/[email protected]/server.go:2359 +0x11d4
github.com/valyala/fasthttp.(*workerPool).workerFunc(0xc0003ad180, 0xc0003b4020)
	/gopath/pkg/mod/github.com/valyala/[email protected]/workerpool.go:224 +0xa4
github.com/valyala/fasthttp.(*workerPool).getCh.func1()
	/gopath/pkg/mod/github.com/valyala/[email protected]/workerpool.go:196 +0x32
created by github.com/valyala/fasthttp.(*workerPool).getCh in goroutine 1
	/gopath/pkg/mod/github.com/valyala/[email protected]/workerpool.go:195 +0x1ab

/app/devops_alertcenter/internal/pkg/logger/logger.go:64 这个文件内容如下:

r.Fields[consts.RequestIDKeyName] = r.Ctx.Value(consts.RequestIDKeyName) // 第64行

// Setup 初始化日志
func Setup(cfg *config.ServiceConfig) {
	var (
		logSetting     = cfg.LogSetting
		rotation       = rotatefile.RotateTime(logSetting.Rotation)
		backupNum      = logSetting.BackupNum
		backupTime     = logSetting.BackupTime
		maxSize        = logSetting.MaxSize * rotatefile.OneMByte
		errorHandler   *handler.SyncCloseHandler
		normalHandler  *handler.SyncCloseHandler
		errorFilename  = fmt.Sprintf("%s.error%s", logSetting.ServiceLogFilename, logSetting.LogFilenamePostfix)
		errorFilepath  = path.Join(logSetting.LogDir, errorFilename)
		normalFilename = fmt.Sprintf("%s.info%s", logSetting.ServiceLogFilename, logSetting.LogFilenamePostfix)
		normalFilepath = path.Join(logSetting.LogDir, normalFilename)
		textFormatter  *slog.TextFormatter
		commonConfigs  = []handler.ConfigFn{
			handler.WithBackupNum(backupNum), handler.WithBackupTime(backupTime),
			handler.WithMaxSize(maxSize), handler.WithBuffSize(0),
		}
		errorConfigs = []handler.ConfigFn{
			handler.WithLogLevels(slog.DangerLevels),
		}
		normalConfigs = []handler.ConfigFn{
			handler.WithLogLevels(slog.NormalLevels),
		}
	)

	errorConfigs = append(errorConfigs, commonConfigs...)
	normalConfigs = append(normalConfigs, commonConfigs...)

	textFormatter = slog.NewTextFormatter(LogRecordTemplate).Configure(func(f *slog.TextFormatter) {
		f.TimeFormat = consts.LogDateTimeFormat // 自定义时间格式
	})

	// warning以上的级别写到一个文件
	errorHandler = handler.MustRotateFile(errorFilepath, rotation, errorConfigs...)
	errorHandler.SetFormatter(textFormatter)

	// info以下的级别写到一个文件
	normalHandler = handler.MustRotateFile(normalFilepath, rotation, normalConfigs...)
	normalHandler.SetFormatter(textFormatter)

	// 增加handler
	slog.AddHandlers(errorHandler, normalHandler)

	// 添加requestid
	slog.AddProcessor(slog.ProcessorFunc(func(r *slog.Record) {
		r.Fields[consts.RequestIDKeyName] = r.Ctx.Value(consts.RequestIDKeyName)     // 第64行
	}))

	// 禁用console输出,默认是启用的
	slog.SetLogLevel(slog.PanicLevel)
}

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inhere avatar inhere commented on July 18, 2024

可以使用下面这个方法替代 r.Fields["requestid"] = r.Ctx.Value("requestid") 更保险，里面会做检查：

	// L.AddProcessor(slog.ProcessorFunc(func(r *slog.Record) {
	// 	r.Fields["requestid"] = r.Ctx.Value("requestid")
	// }))
	L.AddProcessor(slog.AppendCtxKeys("requestid"))

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