如何自定义zap的日志输出格式？

{"level":"info","ts":1617979575129,"caller":"cmd/main.go:62","msg":"prom server start success， port 10081"}

[2021-04-10 17:27:55.419] [INFO] [212fb8d8-4e30-44fd-a6f2-d0a9b9799b9d] [cmd/main.go:62]  prom server start success, port 10081

const (
	logTmFmtWithMS = "2006-01-02 15:04:05.000"
)

func initCore(l *Log) zapcore.Core {
	opts := []zapcore.WriteSyncer{
		zapcore.AddSync(&lumberjack.Logger{
			Filename:  filepath.Join(l.logDir, l.logFileName), // ⽇志⽂件路径
			MaxSize:   l.logMaxSize,                           // 单位为MB,默认为512MB
			MaxAge:    l.logMaxAge,                            // 文件最多保存多少天
			LocalTime: l.localTime,                            // 采用本地时间
			Compress:  l.logCompress,                          // 是否压缩日志
		}),
	}

	if l.stdout {
		opts = append(opts, zapcore.AddSync(os.Stdout))
	}

	syncWriter := zapcore.NewMultiWriteSyncer(opts...)

	// 自定义时间输出格式
	customTimeEncoder := func(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
		enc.AppendString("[" + t.Format(logTmFmtWithMS) + "]")
	}
	// 自定义日志级别显示
	customLevelEncoder := func(level zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
		enc.AppendString("[" + level.CapitalString() + "]")
	}

	// 自定义文件：行号输出项
	customCallerEncoder := func(caller zapcore.EntryCaller, enc zapcore.PrimitiveArrayEncoder) {
		enc.AppendString("[" + l.traceId + "]")
		enc.AppendString("[" + caller.TrimmedPath() + "]")
	}

	encoderConf := zapcore.EncoderConfig{
		CallerKey:     "caller_line", // 打印文件名和行数
		LevelKey:      "level_name",
		MessageKey:    "msg",
		TimeKey:       "ts",
		StacktraceKey: "stacktrace",
		LineEnding:    zapcore.DefaultLineEnding,
		EncodeTime:     customTimeEncoder,   // 自定义时间格式
		EncodeLevel:    customLevelEncoder,  // 小写编码器
		EncodeCaller:   customCallerEncoder, // 全路径编码器
		EncodeDuration: zapcore.SecondsDurationEncoder,
		EncodeName:     zapcore.FullNameEncoder,
	}

	// level大写染色编码器
	if l.enableColor {
		encoderConf.EncodeLevel = zapcore.CapitalColorLevelEncoder
	}

	// json 格式化处理
	if l.jsonFormat {
		return zapcore.NewCore(zapcore.NewJSONEncoder(encoderConf),
			syncWriter, zap.NewAtomicLevelAt(l.logMinLevel))
	}

	return zapcore.NewCore(zapcore.NewConsoleEncoder(encoderConf),
		syncWriter, zap.NewAtomicLevelAt(l.logMinLevel))
}

[2021-04-10 18:24:34.329] [INFO] [c9c4eabb-8277-57f7-8465-6176f27d0cef] [service/service.go:52] req=a:3 b:5 multipy result=15