[TOC] > [github.com](https://github.com/sirupsen/logrus) ## 概述 Logrus是一个可插拔的、结构化的日志框架 * 完全兼容 golan标准库日志模块 * 六种级别: trace,debug、info、warn、error、fatal, panic * 支持自定义扩展hook和自定义输出格式 ## 实例 <details> <summary>main.go</summary> ``` package main import ( "github.com/lestrrat/go-file-rotatelogs" "github.com/rifflock/lfshook" "github.com/sirupsen/logrus" "github.com/tietang/go-utils" "github.com/x-cray/logrus-prefixed-formatter" "os" "path" "path/filepath" "strings" "time" ) var log_level = "debug" // trace debug info warn error fatal panic var log_path = "logs" var log_test_path = "" func main() { iniLog() //测试 logrus.Info("dasdsadsa") } func iniLog(){ setLogLevel(log_level) setConsoleFormater() setFileFormater(log_path,log_test_path) } func setLogLevel(level string) { //日志级别 parseLevel, e := logrus.ParseLevel(level) if e != nil { panic(e) } logrus.SetLevel(parseLevel) logrus.SetReportCaller(true) } func setConsoleFormater() { //formatter :=&logrus.TextFormatter{}// logrus 自带的文本格式 formatter := &prefixed.TextFormatter{} //引用第三方的文本格式 formatter.FullTimestamp = true formatter.TimestampFormat = "2006-01-02.15:04:05.000000" formatter.ForceFormatting = true formatter.SetColorScheme(&prefixed.ColorScheme{ InfoLevelStyle: "green", WarnLevelStyle: "yellow", ErrorLevelStyle: "red", FatalLevelStyle: "41", PanicLevelStyle: "41", DebugLevelStyle: "blue", PrefixStyle: "cyan", TimestampStyle: "37", }) logrus.SetFormatter(formatter) } //初始化log配置，配置logrus日志文件滚动生成和 func setFileFormater(logDir ,logTestDir string) { //设置日志文件输出的是否带文件和函数 showfileLength() //配置日志输出目录 if logTestDir != ""{ logDir = logTestDir } logFilePath, _ := filepath.Abs(logDir) logrus.Infof("logrus abs path: %s", logFilePath) logFileName := "log" maxAge := time.Hour*24 rotationTime := time.Hour*1 _=os.MkdirAll(logDir, os.ModePerm) baseLogPath := path.Join(logDir, logFileName) //设置滚动日志输出writer writer, err := rotatelogs.New( strings.TrimSuffix(baseLogPath, ".log")+".%Y%m%d%H", rotatelogs.WithLinkName(baseLogPath), // 生成软链，指向最新日志文件 rotatelogs.WithMaxAge(maxAge), // 文件最大保存时间 rotatelogs.WithRotationTime(rotationTime), // 日志切割时间间隔 ) if err != nil { logrus.Errorf("config local file system logger error. %+v", err) } //设置日志文件输出的日志格式 //formatter := &logrus.JSONFormatter{} formatter :=&prefixed.TextFormatter{} //引用第三方的文本格式 //控制台高亮显示 formatter.DisableColors=true formatter.FullTimestamp=true formatter.TimestampFormat="2006-01-02.15:04:05.000000" formatter.ForceFormatting=true lfHook := lfshook.NewHook(lfshook.WriterMap{ logrus.DebugLevel: writer, // 为不同级别设置不同的输出目的 logrus.InfoLevel: writer, logrus.WarnLevel: writer, logrus.ErrorLevel: writer, logrus.FatalLevel: writer, logrus.PanicLevel: writer, }, formatter) logrus.AddHook(lfHook) } func showfileLength() { lfh := utils.NewLineNumLogrusHook() lfh.EnableFileNameLog = true level, e := logrus.ParseLevel(log_level) if e != nil { panic(e) } if level == logrus.DebugLevel { lfh.EnableFuncNameLog = true }else{ lfh.EnableFuncNameLog = false } logrus.AddHook(lfh) } ``` </details> <br /> 输出的格式 ``` //debug [2019-12-05.22:31:22.830555] INFO main.main(tmp/main.go:25): dasdsadsa //info [2019-12-05.22:34:05.844089] INFO tmp/main.go(25): dasdsadsa ```