AddCallerSkip可以帮助您跳过调用者的调用堆栈深度。
我正试图用自定义编码器将相同的消息同时放入控制台和日志文件中进行配置。在这个过程中，我想显示调用者信息，但即使我使用了文档中建议的caller键，也不会显示相同的信息。
以下是相同的示例代码
package main
import (
"os"
"time"
"go.uber.org/zap"
"go.uber.org/zap/zapcore"
"gopkg.in/natefinch/lumberjack.v2"
)
var logLevelSeverity = map[zapcore.Level]string{
zapcore.DebugLevel: "DEBUG",
zapcore.InfoLevel: "INFO",
zapcore.WarnLevel: "WARNING",
zapcore.ErrorLevel: "ERROR",
zapcore.DPanicLevel: "CRITICAL",
zapcore.PanicLevel: "ALERT",
zapcore.FatalLevel: "EMERGENCY",
}
func SyslogTimeEncoder(t time.Time, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString(t.Format("Jan 01, 2006 15:04:05"))
}
func CustomEncodeLevel(level zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString(logLevelSeverity[level])
}
func CustomLevelFileEncoder(level zapcore.Level, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString("[" + logLevelSeverity[level] + "]")
}
func main() {
w := zapcore.AddSync(&lumberjack.Logger{
Filename: "temp1.log",
MaxSize: 1024,
MaxBackups: 20,
MaxAge: 28,
Compress: true,
})
//Define config for the console output
cfgConsole := zapcore.EncoderConfig{
MessageKey: "message",
LevelKey: "severity",
EncodeLevel: CustomEncodeLevel,
TimeKey: "time",
EncodeTime: SyslogTimeEncoder,
CallerKey: "caller",
EncodeCaller: zapcore.FullCallerEncoder,
}
cfgFile := zapcore.EncoderConfig{
MessageKey: "message",
LevelKey: "severity",
EncodeLevel: CustomLevelFileEncoder,
TimeKey: "time",
EncodeTime: SyslogTimeEncoder,
CallerKey: "caller",
EncodeCaller: zapcore.FullCallerEncoder,
}
consoleDebugging := zapcore.Lock(os.Stdout)
//consoleError := zapcore.Lock(os.Stderr)
core := zapcore.NewTee(
zapcore.NewCore(zapcore.NewConsoleEncoder(cfgFile), w, zap.DebugLevel),
zapcore.NewCore(zapcore.NewJSONEncoder(cfgConsole), consoleDebugging, zap.DebugLevel),
//zapcore.NewCore(zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()), consoleError, zap.ErrorLevel),
)
//core := zapcore.NewCore(zapcore.NewConsoleEncoder(encConsole), w, zap.DebugLevel)
wlogger := zap.New(core)
wlogger.Debug("Sample debug for log file and console")
wlogger.Warn("An warning message example")
wlogger.Info("An info level message")
coreFile := zapcore.NewCore(zapcore.NewConsoleEncoder(cfgFile), w, zap.DebugLevel)
flogger := zap.New(coreFile)
flogger.Debug("An exclusive message for file")
//output
//{"severity":"DEBUG","time":"Nov 11, 2018 20:24:11","message":"Sample debug for log file and console"}
//{"severity":"WARNING","time":"Nov 11, 2018 20:24:11","message":"An warning message example"}
//{"severity":"INFO","time":"Nov 11, 2018 20:24:11","message":"An info level message"}
}
有没有想过为什么没有显示来电者信息？
// before
zap.New(core, zap.AddCaller())
// output: {"level":"panic","time":"2020-06-09T16:08:25.677+0800","line":"log/log.go:118","msg":"before")}
// add caller skip
zap.New(core, zap.AddCaller(), zap.AddCallerSkip(1))
// output: {"level":"panic","time":"2020-06-09T16:47:39.559+0800","line":"client/client.go:29","msg":"after"}
根据文档https://godoc.org/go.uber.org/zap#AddCaller你可以在记录器创建上做这样的事情：
wlogger := zap.New(core, zap.AddCaller())
更新注释的答案
您还可以定义调用方编码的实现：
func MyCaller(caller zapcore.EntryCaller, enc zapcore.PrimitiveArrayEncoder) {
enc.AppendString(filepath.Base(caller.FullPath()))
}
并将其传递给cfgConsole和cfgFile