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project_demo.go
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project_demo.go
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package main
import (
"fmt"
"os"
"time"
"github.com/fufuok/gxlog/formatter/json"
"github.com/fufuok/gxlog/formatter/text"
"github.com/fufuok/gxlog/iface"
"github.com/fufuok/gxlog/writer"
"github.com/fufuok/gxlog/writer/file"
"github.com/fufuok/gxlog"
"github.com/fufuok/gxlog/logger"
)
const (
// 文件日志
LogDir = "."
ProjectName = "app-ff"
// 每 1 秒最多输出 3 条日志
LogLimitTime = time.Second
LogLimitNum = 3
// 日志级别: 1Trace 2Debug 3Info 4Warn 5Error(默认) 6Fatal 7Off
LogFileLevel = 4
)
var (
Debug = false
LogLevel = 4
Log = gxlog.Logger()
LogLimit *logger.Logger
LogPrefix *logger.Logger
)
func init() {
if err := InitLogger(); err != nil {
fmt.Println(err)
os.Exit(1)
}
}
func InitLogger() error {
if err := LogConfig(); err != nil {
return err
}
// 带限制的日志记录器
LogLimit = Log.WithTimeLimit(LogLimitTime, LogLimitNum)
// 某些模块特定前缀的日志记录器
LogPrefix = Log.WithPrefix("***FUFU***")
return nil
}
// 日志配置
// 1. Debug 时, 只输出到控制台
// 2. 生产环境时, 输出到日志文件, 并发送 JSON 日志到 ES (不同的日志级别)
func LogConfig() error {
Log.SetSlotLevel(logger.Slot0, iface.Level(LogLevel))
Log.SetSlotFormatter(logger.Slot0, text.New(text.NewConfig()))
Log.SetSlotWriter(logger.Slot0, writer.Wrap(os.Stderr, nil))
if Debug {
// 测试环境只输出到控制台
Log.Unlink(logger.Slot1)
return nil
}
// 错误文件日志
wt, err := file.Open(file.Config{
Path: LogDir,
Base: ProjectName,
})
if err != nil {
return fmt.Errorf("logfile path err: %s\nbye.", err)
}
Log.CopySlot(logger.Slot1, logger.Slot0)
Log.SetSlotWriter(logger.Slot1, wt)
Log.SetSlotLevel(logger.Slot1, iface.Level(LogFileLevel))
// JSON 日志, 发送到 ES
Log.SetSlotFormatter(logger.Slot0, json.New(json.NewConfig()))
Log.SetSlotWriter(logger.Slot0, writer.Func(func(bs []byte, _ *iface.Record) {
LogCache(bs)
}))
return nil
}
func LogCache(bs []byte) {
// 日志暂存, 定时批量发送到 ES
fmt.Println("___LOG_CACHE:", string(bs))
}
func testLog() {
Log.Debug("test DEBUG")
Log.Info("test INFO")
Log.Warn("test WARN")
Log.WithContext("k1", "v1.string", "k2", 1.05).Error("test ERROR with Field")
LogPrefix.WithMark(true).Warnf("test %s", "PREFIX AND MARK")
for i := 0; i < 10; i++ {
LogLimit.Infof(">>>test limit: %d", i)
time.Sleep(200 * time.Millisecond)
}
}
func main() {
testLog()
fmt.Println("~~~~~~~~~~~~~~~~debug.true, level.debug")
Debug = true
LogLevel = 2
_ = InitLogger()
testLog()
Log.Fatal("the end")
}
// Debug = true
//23:16:17.005 D project_demo.go:100 main.main [] test DEBUG
//23:16:17.005 I project_demo.go:101 main.main [] test INFO
//23:16:17.005 W project_demo.go:102 main.main [] test WARN
//23:16:17.005 E project_demo.go:103 main.main [(k1: v1.string) (k2: 1.05)] test ERROR with Field
//23:16:17.005 W project_demo.go:105 main.main ***FUFU***[] test PREFIX AND MARK
//23:16:17.005 I project_demo.go:108 main.main [] >>>test limit: 0
//23:16:17.206 I project_demo.go:108 main.main [] >>>test limit: 1
//23:16:17.406 I project_demo.go:108 main.main [] >>>test limit: 2
//23:16:18.009 I project_demo.go:108 main.main [] >>>test limit: 5
//23:16:18.209 I project_demo.go:108 main.main [] >>>test limit: 6
//23:16:18.410 I project_demo.go:108 main.main [] >>>test limit: 7
// Debug = false
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"D","file":"project_demo.go","line":101,"pkg":"main","func":"main","msg":"test DEBUG"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"I","file":"project_demo.go","line":102,"pkg":"main","func":"main","msg":"test INFO"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"W","file":"project_demo.go","line":103,"pkg":"main","func":"main","msg":"test WARN"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"E","file":"project_demo.go","line":104,"pkg":"main","func":"main","msg":"test ERROR with Field","contexts":[{"k1":"v1.string"},{"k2":"1.05"}]}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"W","file":"project_demo.go","line":106,"pkg":"main","func":"main","msg":"test PREFIX AND MARK","prefix":"***FUFU***","marked":true}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:45+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 0"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:46+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 1"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:46+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 2"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:46+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 5"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:47+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 6"}
//
// ___LOG_CACHE: {"time":"2021-04-03T23:18:47+08:00","level":"I","file":"project_demo.go","line":109,"pkg":"main","func":"main","msg":">>>test limit: 7"}
// 20210403/app-ff.231845.297245.log
//23:18:45.297 W project_demo.go:103 main.main [] test WARN
//23:18:45.806 E project_demo.go:104 main.main [(k1: v1.string) (k2: 1.05)] test ERROR with Field
//23:18:45.806 W project_demo.go:106 main.main ***FUFU***[] test PREFIX AND MARK