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Go语言中的Zap日志库

news 2025/10/6 6:49:39

zap

USE

go get -u go.uber.org/zap

package mainimport ("go.uber.org/zap""net/http"
)var logger *zap.Loggerfunc main() {InitLogger()defer logger.Sync() //关闭之前 刷新缓冲区的内容到里面simpleHttpGet("www.baidu.com")simpleHttpGet("http://www.baidu.com")
}func InitLogger() {logger, _ = zap.NewProduction()
}func simpleHttpGet(url string) {resp, err := http.Get(url)if err != nil {logger.Error("Error fetching url..",zap.String("url", url),zap.Error(err))} else {logger.Info("Success..",zap.String("statusCode", resp.Status),zap.String("url", url))resp.Body.Close()}
}

日志写入文件

日志切片 go get gopkg.in/natefinch/lumberjack.v2

package mainimport ("net/http""go.uber.org/zap""go.uber.org/zap/zapcore""gopkg.in/natefinch/lumberjack.v2"
)var sugarLogger *zap.SugaredLoggerfunc main() {InitLogger()defer sugarLogger.Sync()simpleHttpGet("www.sogo.com")simpleHttpGet("http://www.sogo.com")
}func InitLogger() {writeSyncer := getLogWriter()encoder := getEncoder()core := zapcore.NewCore(encoder, writeSyncer, zapcore.DebugLevel)logger := zap.New(core, zap.AddCaller()) //zap.AddCaller 添加调用者sugarLogger = logger.Sugar()
}func getEncoder() zapcore.Encoder {encoderConfig := zap.NewProductionEncoderConfig()encoderConfig.EncodeTime = zapcore.ISO8601TimeEncoderencoderConfig.EncodeLevel = zapcore.CapitalLevelEncoderreturn zapcore.NewConsoleEncoder(encoderConfig)
}func getLogWriter() zapcore.WriteSyncer {lumberJackLogger := &lumberjack.Logger{Filename:   "./test.log",MaxSize:    200,   //MVMaxBackups: 5,     //最大备份书来给你MaxAge:     30,    //最大备份天数Compress:   false, //是否压缩}return zapcore.AddSync(lumberJackLogger)
}func simpleHttpGet(url string) {sugarLogger.Debugf("Trying to hit GET request for %s", url)resp, err := http.Get(url)if err != nil {sugarLogger.Errorf("Error fetching URL %s : Error = %s", url, err)} else {sugarLogger.Infof("Success! statusCode = %s for URL %s", resp.Status, url)resp.Body.Close()}
}