Golang：Sirupsenlogrus是一个日志库

Sirupsen/logrus是一个日志库

文档

• https://github.com/Sirupsen/logrus

安装

go get github.com/sirupsen/logrus

代码示例

package main

import (
    "github.com/sirupsen/logrus"
)

func main() {

    var log = logrus.New()

    log.Trace("Something very low level.")
    log.Debug("Useful debugging information.")
    log.Info("Something noteworthy happened!")
    log.Warn("You should probably take a look at this.")
    log.Error("Something failed but I'm not quitting.")
}

输出

time="2024-05-27T11:27:24+08:00" level=info msg="Something noteworthy happened!"
time="2024-05-27T11:27:24+08:00" level=warning msg="You should probably take a look at this."
time="2024-05-27T11:27:24+08:00" level=error msg="Something failed but I'm not quitting."

其他参数

// 1、设置格式
// json格式：&logrus.JSONFormatter{}
// 文本格式（默认）：&log.TextFormatter{}
log.SetFormatter(&logrus.JSONFormatter{})

// 2、设置输出到文件

// 2.1、标准输出
log.Out = os.Stdout

// 2.2、文件输出
file, err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY|os.O_APPEND, 0666)
defer file.Close()

if err == nil {
    log.Out = file
} else {
    log.Info("Failed to log to file, using default stderr")
}

// 3、设置日志级别
log.SetLevel(logrus.DebugLevel)