golang日志框架zap

zap是uber开源的Go高性能日志库

封装

package log

import (
	"os"

	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
)

var (
	logger       *zap.Logger
	automicLevel = zap.NewAtomicLevelAt(zapcore.InfoLevel)
)

func init() {
	writeSyncer := zapcore.AddSync(os.Stdout)

	encoderConfig := zapcore.EncoderConfig{
		TimeKey:        "time",
		LevelKey:       "level",
		NameKey:        "logger",
		CallerKey:      "caller",
		MessageKey:     "msg",
		StacktraceKey:  "stacktrace",
		LineEnding:     zapcore.DefaultLineEnding,
		EncodeLevel:    zapcore.LowercaseLevelEncoder,
		EncodeTime:     zapcore.ISO8601TimeEncoder,
		EncodeDuration: zapcore.SecondsDurationEncoder,
		EncodeCaller:   zapcore.FullCallerEncoder,
		EncodeName:     zapcore.FullNameEncoder,
	}
	encoder := zapcore.NewJSONEncoder(encoderConfig)

	core := zapcore.NewCore(
		encoder,
		writeSyncer,
		automicLevel)

	logger = zap.New(core, zap.AddCaller(), zap.Development(), zap.AddCallerSkip(1))
}

var levelMap = map[string]zapcore.Level{
	"debug":  zapcore.DebugLevel,
	"info":   zapcore.InfoLevel,
	"warn":   zapcore.WarnLevel,
	"error":  zapcore.ErrorLevel,
	"dpanic": zapcore.DPanicLevel,
	"panic":  zapcore.PanicLevel,
	"fatal":  zapcore.FatalLevel,
}

func SetLevel(s string) {
	if level, ok := levelMap[s]; ok {
		automicLevel.SetLevel(level)
	}
	automicLevel.SetLevel(zapcore.InfoLevel)
}

func Field(key string, val interface{}) zap.Field {
	return zap.Any(key, val)
}

func Debug(msg string, fields ...zap.Field) {
	logger.Debug(msg, fields...)
}

func Info(msg string, fields ...zap.Field) {
	logger.Info(msg, fields...)
}

func Warn(msg string, fields ...zap.Field) {
	logger.Warn(msg, fields...)
}

func Error(msg string, fields ...zap.Field) {
	logger.Error(msg, fields...)
}

func DPanic(msg string, fields ...zap.Field) {
	logger.DPanic(msg, fields...)
}

func Panic(msg string, fields ...zap.Field) {
	logger.Panic(msg, fields...)
}

func Fatal(msg string, fields ...zap.Field) {
	logger.Fatal(msg, fields...)
}

使用

package main

import (
	log
)

func main() {
	log.Info("hello world")

	log.SetLevel("warn")

	log.Info("hi", log.Field("name", "wss"))
}