go语言中开箱即用日志包:zap日志简单使用示例
zap包介绍:Go中快速、结构化、分级的日志记录
安装zap包
go get -u go.uber.org/zap
请注意,zap仅支持Go的两个最新次要版本。
git:
https://github.com/uber-go/zap
官方手册:
https://pkg.go.dev/go.uber.org/zap#section-readme
zap支持的数据类型:
https://pkg.go.dev/go.uber.org/zap#Field
zap日志打印方法等级:
https://pkg.go.dev/go.uber.org/zap#Logger
代码示例:
初始化
package logZap
var Logger *zap.Logger
func Init() {
var path string
var serverName ="app_name"
path = "/var/log/"
if runtime.GOOS == "windows" {
path = "./"
} else {
path = "/var/log/" + serverName + "/"
}
pathInfo := path + core.New().ServerInfo.ServerName + "_info.log"
pathError := path + core.New().ServerInfo.ServerName + "_error.log"
var err error
Logger, err = GetLogger(pathInfo, pathError)
if err != nil {
panic(err)
}
}
func GetLogger(infoPath, errorPath string) (*zap.Logger, error) {
highPriority := zap.LevelEnablerFunc(func(lev zapcore.Level) bool {
return lev >= zap.ErrorLevel
})
lowPriority := zap.LevelEnablerFunc(func(lev zapcore.Level) bool {
return lev < zap.ErrorLevel && lev >= zap.DebugLevel
})
prodEncoder := zap.NewProductionEncoderConfig()
prodEncoder.EncodeTime = zapcore.ISO8601TimeEncoder
lowWriteSyncer, lowClose, err := zap.Open(infoPath)
if err != nil {
lowClose()
return nil, err
}
highWriteSyncer, highClose, err := zap.Open(errorPath)
if err != nil {
highClose()
return nil, err
}
highCore := zapcore.NewCore(zapcore.NewJSONEncoder(prodEncoder), highWriteSyncer, highPriority)
lowCore := zapcore.NewCore(zapcore.NewJSONEncoder(prodEncoder), lowWriteSyncer, lowPriority)
return zap.New(zapcore.NewTee(highCore, lowCore), zap.AddCaller()), nil
}
使用调用
打印错误:
logZap.Logger.Error("error:", zap.Error(err))
打印debug:
logZap.Logger.Debug("port form:",zap.String("portStr",portStr))
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