Go實現整合Logrus實現日志打印
Github:github.com/sirupsen/lo…
1 初步使用
package main import ( "context" "github.com/sirupsen/logrus" ) func main() { method0() } func method0() { logger:= logrus.New() logger.Warning("This is a first log.") ctx := context.WithValue(context.Background(),"key","value") logger.Warning(ctx,"This is a second log.") }
2 增加標簽WithFields
package main import ( "context" "github.com/sirupsen/logrus" ) func main() { method1() } func method1() { log.WithFields(log.Fields{ "fieldKey": "fieldValue", }).Warning("This is a first field log.") log.WithFields(log.Fields{ "fieldKey": "fieldValue", "fieldKey2": "fieldValue2", }).Warning("This is a second field log.") }
3 配置常見參數
package main import ( "context" "github.com/sirupsen/logrus" log "github.com/sirupsen/logrus" "os" ) func main() { method2() } func init() { // 日志作為JSON而不是默認的ASCII格式器. log.SetFormatter(&log.JSONFormatter{}) // 輸出到標準輸出,可以是任何io.Writer log.SetOutput(os.Stdout) // 隻記錄xx級別或以上的日志 log.SetLevel(log.TraceLevel) } func method2() { log.WithFields(log.Fields{ "animal": "walrus", "size": 10, }).Info("A group of walrus emerges from the ocean") log.WithFields(log.Fields{ "omg": true, "number": 122, }).Warn("The group's number increased tremendously!") log.WithFields(log.Fields{ "omg": true, "number": 100, }).Fatal("The ice breaks!") }
Formatter一般分為兩種:
- &log.JSONFormatter{}
- &log.TextFormatter{}
日志級別一共七種:
- log.Trace()
- log.Debug()
- log.Info()
- log.Warn()
- log.Error()
- log.Fatal()
- log.Panic()
4 輸出日志到文件
package main import ( "context" "github.com/sirupsen/logrus" "os" ) func main() { method4() } func method4() { var log = logrus.New() file ,err := os.OpenFile("logrus.log", os.O_CREATE|os.O_WRONLY, 0666) if err == nil{ log.Out = file }else{ log.Info("Failed to log to file") } log.WithFields(logrus.Fields{ "filename": "123.txt", }).Info("This is a file log") }
logrus.log文件的內容:
time="2022-01-06T13:04:25+08:00" level=info msg="This is a file log" filename=123.txt\
5 利用Hooks將日志輸出到其他地方
import ( log "github.com/sirupsen/logrus" "gopkg.in/gemnasium/logrus-airbrake-hook.v2" // the package is named "airbrake" logrus_syslog "github.com/sirupsen/logrus/hooks/syslog" "log/syslog" ) func init() { // 使用氣閘掛鉤來報告錯誤嚴重程度或以上的錯誤一個異常追蹤。您可以創建自定義鉤子,請參見鉤子部分。 log.AddHook(airbrake.NewHook(123, "xyz", "production")) hook, err := logrus_syslog.NewSyslogHook("udp", "localhost:514", syslog.LOG_INFO, "") if err != nil { log.Error("Unable to connect to local syslog daemon") } else { log.AddHook(hook) } }
隻需要在AddHook是添加相應的Hook就可以瞭
到此這篇關於Go實現整合Logrus實現日志打印的文章就介紹到這瞭,更多相關Go Logrus日志打印內容請搜索WalkonNet以前的文章或繼續瀏覽下面的相關文章希望大傢以後多多支持WalkonNet!
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