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| package logger
import "strings"
var Loglevelmap = map[string]int{ "debug": 0, "info": 1, "warn": 2, "error": 3, "fatal": 4, }
type Logger interface { Debug(format string, args ...interface{}) Info(format string, args ...interface{}) Warn(format string, args ...interface{}) Error(format string, args ...interface{}) Fatal(format string, args ...interface{}) Close() }
func Getlevel(level string) int { level = strings.ToLower(level) val, ok := Loglevelmap[level] if ok { return val } return 1 }
package logger
import ( "fmt" "os" "path" "time" )
type FileLogger struct { Level string Filepath string Filename string file *os.File errFile *os.File maxSize int64 lastTime time.Time }
func NewFileLogger(Level, Filepath, Filename string) *FileLogger { FileObj := &FileLogger{ Level: Level, Filepath: Filepath, Filename: Filename, maxSize: 10 * 1024 * 1024, lastTime: time.Now(), } FileObj.initFile() return FileObj }
func (f *FileLogger) initFile() { logName := path.Join(f.Filepath, f.Filename) fileObj, err := os.OpenFile(logName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644) if err != nil { panic(fmt.Errorf("打开日志文件%s异常, 报错:%v", logName, err)) } f.file = fileObj errLogName := fmt.Sprintf("err_%s", logName) errFileObj, err := os.OpenFile(errLogName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644) if err != nil { panic(fmt.Errorf("打开日志文件%s异常, 报错:%v", errLogName, err)) } f.errFile = errFileObj }
func (f *FileLogger) wLog(logLevel string, format string, args ...interface{}) { if Getlevel(f.Level) > Getlevel(logLevel) { return } f.checkSplitLog() msgInfo := fmt.Sprintf(format, args...) nowStr := time.Now().Format("2006-01-02 15:04:05.000") funcName, fileName, line := getCallerInfo(3) logMsg := fmt.Sprintf("[%s] [%s] [%s:%s] %d %s", nowStr, logLevel, fileName, funcName, line, msgInfo) _, _ = fmt.Fprintln(f.file, logMsg) if Getlevel(logLevel) >= Getlevel("ERROR") { _, _ = fmt.Fprintln(f.errFile, logMsg) } }
func (f *FileLogger) checkSplitLog() { timeD := time.Now().Sub(f.lastTime).Minutes() if timeD >= 1 { fileName := f.file.Name() backupName := fmt.Sprintf("%s_bak%v", fileName, time.Now().Unix()) _ = f.file.Close() _ = os.Rename(fileName, backupName) fileObj, err := os.OpenFile(fileName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644) if err != nil { panic(fmt.Errorf("打开日志文件%s异常, 报错:%v", fileName, err)) }
errFileName := f.errFile.Name() errBackupName := fmt.Sprintf("%s_bak%v", errFileName, time.Now().Unix()) _ = f.errFile.Close() _ = os.Rename(errFileName, errBackupName) errFileObj, err := os.OpenFile(errFileName, os.O_CREATE|os.O_APPEND|os.O_WRONLY, 0644) if err != nil { panic(fmt.Errorf("打开日志文件%s异常, 报错:%v", errFileName, err)) } f.lastTime = time.Now() f.file = fileObj f.errFile = errFileObj } }
func (f *FileLogger) Debug(format string, args ...interface{}) { f.wLog("DEBUG", format, args...) }
func (f *FileLogger) Info(format string, args ...interface{}) { f.wLog("INFO", format, args...) }
func (f *FileLogger) Warn(format string, args ...interface{}) { f.wLog("WARN", format, args...) }
func (f *FileLogger) Error(format string, args ...interface{}) { f.wLog("ERROR", format, args...) }
func (f *FileLogger) Fatal(format string, args ...interface{}) { f.wLog("FATAL", format, args...) }
func (f *FileLogger) Close() { _ = f.file.Close() _ = f.errFile.Close() }
package logger
import ( "path" "runtime" )
func getCallerInfo(skip int) (funcName, fileName string, line int) { pc, fileName, line, ok := runtime.Caller(skip) if !ok { panic("获取程序信息失败") } funcName = path.Base(runtime.FuncForPC(pc).Name()) fileName = path.Base(fileName) return }
package logger
import ( "fmt" "os" "time" )
type ConsoleLogger struct { Level string }
func NewConsoleLogger(Level string) *ConsoleLogger { ConsoleObj := &ConsoleLogger{ Level: Level, } return ConsoleObj }
func (f *ConsoleLogger) wLog(logLevel string, format string, args ...interface{}) { if Getlevel(f.Level) > Getlevel(logLevel) { return } msgInfo := fmt.Sprintf(format, args...) nowStr := time.Now().Format("2006-01-02 15:04:05.000") funcName, fileName, line := getCallerInfo(3) logMsg := fmt.Sprintf("[%s] [%s] [%s:%s] %d %s", nowStr, logLevel, fileName, funcName, line, msgInfo) _, _ = fmt.Fprintln(os.Stdout, logMsg) }
func (f *ConsoleLogger) Debug(format string, args ...interface{}) { f.wLog("DEBUG", format, args...) }
func (f *ConsoleLogger) Info(format string, args ...interface{}) { f.wLog("INFO", format, args...) }
func (f *ConsoleLogger) Warn(format string, args ...interface{}) { f.wLog("WARN", format, args...) }
func (f *ConsoleLogger) Error(format string, args ...interface{}) { f.wLog("ERROR", format, args...) }
func (f *ConsoleLogger) Fatal(format string, args ...interface{}) { f.wLog("FATAL", format, args...) }
func (f *ConsoleLogger) Close() {
}
package main
import ( "time"
logger "ropon.top/day04/1logger" )
var log logger.Logger
func main() { log = logger.NewConsoleLogger("Info") defer log.Close() for i := 0; i < 10; i++ { x := 100 log.Debug("这是一条Debug信息,调试程序而已") log.Info("这是一条Info信息,测试记录变量值%d", x) log.Error("这是一条Error信息,天啦程序奔溃") log.Fatal("这是一条Fatal信息,哇程序出错啦") time.Sleep(time.Second * 10) } }
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