golang 日志

package log

import (
	"NOONASN/global"
	"github.com/natefinch/lumberjack"
	"go.uber.org/zap"
	"go.uber.org/zap/zapcore"
	"os"
	"path"
	"path/filepath"
)

func GetLogger(name string) *zap.Logger {
	logPath := global.Cfg.Logger.LogPath
	if !path.IsAbs(logPath) {
		if absLogPath, err := filepath.Abs(logPath); err == nil {
			logPath = absLogPath
		}
	}
	debug := global.Cfg.Logger.Debug
	hook := lumberjack.Logger{
		Filename:   logPath, // 日志文件路径
		MaxSize:    128,     // 每个日志文件保存的大小 单位:M
		MaxAge:     7,       // 文件最多保存多少天
		MaxBackups: 30,      // 日志文件最多保存多少个备份
		Compress:   false,   // 是否压缩
	}
	encoderConfig := zapcore.EncoderConfig{
		MessageKey:     "msg",
		LevelKey:       "level",
		TimeKey:        "time",
		NameKey:        "logger",
		CallerKey:      "file",
		StacktraceKey:  "stacktrace",
		LineEnding:     zapcore.DefaultLineEnding,
		EncodeLevel:    zapcore.LowercaseLevelEncoder,
		EncodeTime:     zapcore.TimeEncoderOfLayout("2006-01-02 15:04:05"),
		EncodeDuration: zapcore.SecondsDurationEncoder,
		EncodeCaller:   zapcore.ShortCallerEncoder, // 短路径编码器
		EncodeName:     zapcore.FullNameEncoder,
	}

	// 设置日志级别
	atomicLevel := zap.NewAtomicLevel()
	atomicLevel.SetLevel(zap.DebugLevel)
	var writes = []zapcore.WriteSyncer{zapcore.AddSync(&hook)}
	// 如果是开发环境，同时在控制台上也输出
	if debug {
		writes = append(writes, zapcore.AddSync(os.Stdout))
	}
	core := zapcore.NewCore(
		zapcore.NewJSONEncoder(encoderConfig), // json格式的日志
		//zapcore.NewConsoleEncoder(encoderConfig), // 文子形式的日志
		zapcore.NewMultiWriteSyncer(writes...),
		atomicLevel,
	)

	// 开启开发模式，堆栈跟踪
	caller := zap.AddCaller()
	// 开启文件及行号
	development := zap.Development()

	// 设置初始化字段
	field := zap.Fields(zap.String("appName", name))

	// 构造日志
	return zap.New(core, caller, development, field)
}