zap 高性能日志
最后更新于：2022-04-02 02:38:31
[TOC]
>[github](https://github.com/uber-go/zap)
## 使用
libs/log/interface.go
```
package logs
type InterfaceLogs interface {
Debug(args ...interface{})
Info(args ...interface{})
Warn(args ...interface{})
Error(args ...interface{})
Panic(args ...interface{})
Fatal(args ...interface{})
Debugf(template string, args ...interface{})
Infof(template string, args ...interface{})
Warnf(template string, args ...interface{})
Errorf(template string, args ...interface{})
Panicf(template string, args ...interface{})
Fatalf(template string, args ...interface{})
}
```
libs/logs/logs.go
```
package logs
import (
"antbiz/configs"
"errors"
"os"
"sync"
"github.com/natefinch/lumberjack"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
)
var (
Logs InterfaceLogs
_once sync.Once
)
func init() {
_once.Do(func() {
level := configs.Config.GetStringDefault("default.runmode", "prod")
logName := os.Args[0]
Logs = NewLogs(level, "./log/"+logName +".log")
})
}
func Debug(args ...interface{}) { Logs.Debug(args...) }
func Info(args ...interface{}) { Logs.Info(args...) }
func Warn(args ...interface{}) { Logs.Warn(args...) }
func Error(args ...interface{}) { Logs.Error(args...) }
func Panic(args ...interface{}) { Logs.Panic(args...) }
func Fatal(args ...interface{}) { Logs.Fatal(args...) }
func Debugf(template string, args ...interface{}) { Logs.Debugf(template, args...) }
func Infof(template string, args ...interface{}) { Logs.Infof(template, args...) }
func Warnf(template string, args ...interface{}) { Logs.Warnf(template, args...) }
func Errorf(template string, args ...interface{}) { Logs.Errorf(template, args...) }
func Panicf(template string, args ...interface{}) { Logs.Panicf(template, args...) }
func Fatalf(template string, args ...interface{}) { Logs.Fatalf(template, args...) }
type logs struct {
zap *zap.SugaredLogger
level string
}
func (l *logs) Debug(args ...interface{}) {
l.zap.Debug(args...)
}
func (l *logs) Info(args ...interface{}) {
l.zap.Info(args...)
}
func (l *logs) Warn(args ...interface{}) {
l.zap.Warn(args...)
}
func (l *logs) Error(args ...interface{}) {
l.zap.Error(args...)
}
func (l *logs) Panic(args ...interface{}) {
l.zap.Panic(args...)
}
func (l *logs) Fatal(args ...interface{}) {
l.zap.Fatal(args...)
}
func (l *logs) Debugf(template string, args ...interface{}) {
l.zap.Debugf(template, args...)
}
func (l *logs) Infof(template string, args ...interface{}) {
l.zap.Infof(template, args...)
}
func (l *logs) Warnf(template string, args ...interface{}) {
l.zap.Warnf(template, args...)
}
func (l *logs) Errorf(template string, args ...interface{}) {
l.zap.Errorf(template, args...)
}
func (l *logs) Panicf(template string, args ...interface{}) {
l.zap.Panicf(template, args...)
}
func (l *logs) Fatalf(template string, args ...interface{}) {
l.zap.Fatalf(template, args...)
}
func NewLogs(level string, file string) *logs {
l := &logs{}
lumberJackLogger := &lumberjack.Logger{
Filename: file,
MaxSize: 1,
MaxBackups: 5, //生成日志总数
MaxAge: 30, // 最大时间
Compress: true, //备份日志是否压缩为 gz文件 ,压缩率达到 96%
}
core := zapcore.NewCore(
getEncoder(),
zapcore.NewMultiWriteSyncer(
zapcore.AddSync(lumberJackLogger),
zapcore.AddSync(os.Stdout)),
string2level(level))
logger := zap.New(core,
zap.AddCaller(),
zap.AddCallerSkip(2), //设置打印的Caller趁机
)
l.zap = logger.Sugar()
return l
}
func string2level(text string) zapcore.Level {
switch text {
case "dev":
return zapcore.DebugLevel
case "prod":
return zapcore.InfoLevel
default:
panic(errors.New("log level is not found"))
}
}
// 格式日志
func getEncoder() zapcore.Encoder {
encoderConfig := zap.NewProductionEncoderConfig()
encoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder
encoderConfig.EncodeLevel = zapcore.CapitalLevelEncoder
return zapcore.NewConsoleEncoder(encoderConfig)
}
```
libs/logs/logs_test.go
```
package logs
import (
"testing"
)
func TestLogs(t *testing.T) {
Debug("Debug")
Debug("hello", "Debug")
Warn("hello", "Warn")
Info("hello", "Info")
Error("hello", "Error")
//Panic("Panic")
//Fatal("Warn")
Debugf("%v %v", "hello", "Debugf")
Warnf("%v %v", "hello", "Warnf")
Errorf("%v %v", "hello", "Errorf")
//Panicf("%v%v", "hello", "Panicf")
//Fatalf("%v%v", "hello", "Fatalf")
}
```
';