1.安装zap
go get go.uber.org/zap
go get github.com/natefinch/lumberjack //日志文件分割包
2.基本使用
func main() {
logger, _ := zap.NewProduction() //生产环境实例
defer logger.Sync() //将缓存中的日志同步到文件中
url := "http://xiayuedu.com"
logger.Info("info", //info级别的日志
zap.String("url",url),
zap.Bool("bool",true),
)
logger.Info("info",
zap.Namespace("namespace-1"), //定义多级日志
zap.String("url",url), //使用对应的类型
zap.Bool("bool",true),
)
logger.Info("info",
zap.Namespace("namespace-2"),
zap.String("url",url),
zap.Bool("bool",true),
)
logger.Error("password is error", //error级别
zap.String("username","zhangsan"),
zap.String("password","123456"),
)
logger.Debug("record user info", //debug级别
zap.String("username","zhangsan"),
zap.String("password","123456"),
)
sugar := logger.Sugar() //使用非zap.xxxx类型进行输出,性能较低,非核心代码处可以使用
sugar.Info("sugar info",true,"123q342534",time.Second)
sugar.Error("sugar info",true,"123q342534",time.Second)
sugar.Debug("sugar info",true,"123q342534",time.Second)
sugar.Warn("sugar info",true,"123q342534",time.Second)
}
输出结果
{"level":"info","ts":1627910714.8048513,"caller":"golangdemo/main.go:357","msg":"info","url":"http://xiayuedu.com","bool":true}
{"level":"info","ts":1627910714.805827,"caller":"golangdemo/main.go:361","msg":"info","namespace-1":{"url":"http://xiayuedu.com","bool":true}}
{"level":"info","ts":1627910714.806803,"caller":"golangdemo/main.go:366","msg":"info","namespace-2":{"url":"http://xiayuedu.com","bool":true}}
{"level":"error","ts":1627910714.806803,"caller":"golangdemo/main.go:371","msg":"password is error","username":"zhangsan","password":"123456","stacktrace":"main.ma
in\n\tC:/Users/admin/xiayuedu/golangdemo/main.go:371\nruntime.main\n\tC:/Program Files/Go/src/runtime/proc.go:203"}
{"level":"info","ts":1627910714.8077793,"caller":"golangdemo/main.go:381","msg":"sugar infotrue123q3425341s"}
{"level":"error","ts":1627910714.8077793,"caller":"golangdemo/main.go:382","msg":"sugar infotrue123q3425341s","stacktrace":"main.main\n\tC:/Users/admin/xiayuedu/go
langdemo/main.go:382\nruntime.main\n\tC:/Program Files/Go/src/runtime/proc.go:203"}
{"level":"warn","ts":1627910714.8087556,"caller":"golangdemo/main.go:384","msg":"sugar infotrue123q3425341s"}
3.定制化使用
拷贝来自https://www.jianshu.com/p/910...,大佬写的很不错很详细,可以满足生产使用
import (
"fmt"
"github.com/natefinch/lumberjack"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"os"
"net/http"
)
var log *zap.Logger
func main() {
var coreArr []zapcore.Core
//获取编码器
encoderConfig := zap.NewProductionEncoderConfig() //NewJSONEncoder()输出json格式,NewConsoleEncoder()输出普通文本格式
encoderConfig.EncodeTime = zapcore.ISO8601TimeEncoder //指定时间格式
encoderConfig.EncodeLevel = zapcore.CapitalColorLevelEncoder //按级别显示不同颜色,不需要的话取值zapcore.CapitalLevelEncoder就可以了
//encoderConfig.EncodeCaller = zapcore.FullCallerEncoder //显示完整文件路径
encoder := zapcore.NewConsoleEncoder(encoderConfig)
//日志级别
highPriority := zap.LevelEnablerFunc(func(lev zapcore.Level) bool{ //error级别
return lev >= zap.ErrorLevel
})
lowPriority := zap.LevelEnablerFunc(func(lev zapcore.Level) bool { //info和debug级别,debug级别是最低的
return lev < zap.ErrorLevel && lev >= zap.DebugLevel
})
//info文件writeSyncer
infoFileWriteSyncer := zapcore.AddSync(&lumberjack.Logger{
Filename: "./log/info.log", //日志文件存放目录,如果文件夹不存在会自动创建
MaxSize: 2, //文件大小限制,单位MB
MaxBackups: 100, //最大保留日志文件数量
MaxAge: 30, //日志文件保留天数
Compress: false, //是否压缩处理
})
infoFileCore := zapcore.NewCore(encoder, zapcore.NewMultiWriteSyncer(infoFileWriteSyncer,zapcore.AddSync(os.Stdout)), lowPriority) //第三个及之后的参数为写入文件的日志级别,ErrorLevel模式只记录error级别的日志
//error文件writeSyncer
errorFileWriteSyncer := zapcore.AddSync(&lumberjack.Logger{
Filename: "./log/error.log", //日志文件存放目录
MaxSize: 1, //文件大小限制,单位MB
MaxBackups: 5, //最大保留日志文件数量
MaxAge: 30, //日志文件保留天数
Compress: false, //是否压缩处理
})
errorFileCore := zapcore.NewCore(encoder, zapcore.NewMultiWriteSyncer(errorFileWriteSyncer,zapcore.AddSync(os.Stdout)), highPriority) //第三个及之后的参数为写入文件的日志级别,ErrorLevel模式只记录error级别的日志
coreArr = append(coreArr, infoFileCore)
coreArr = append(coreArr, errorFileCore)
log = zap.New(zapcore.NewTee(coreArr...), zap.AddCaller()) //zap.AddCaller()为显示文件名和行号,可省略
log.Info("hello info")
log.Debug("hello debug")
log.Error("hello error")
}
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