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Trace特性

错误日志信息支持trace特性,可以通过Notice*/Warning*/Error*/Critical*/Panic*/Fatal*错误方法触发,也可以通过GetStack/PrintStack获取/打印。错误信息的trace信息对于调试错误来说相当有用。

示例1,通过错误方法触发

package main

import "github.com/gogf/gf/g/os/glog"

func Test() {
	glog.Error("This is error!")
}

func main() {
	Test()
}

打印出的结果如下:

2019-07-12 22:19:23.421 [ERRO] This is error! 
Stack:
1. main.Test
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_error.go:6
2. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_error.go:10

示例2,通过Stack方法打印

package main

import (
	"fmt"

	"github.com/gogf/gf/g/os/glog"
)

func main() {

	glog.PrintStack()
	glog.New().PrintStack()

	fmt.Println(glog.GetStack())
	fmt.Println(glog.New().GetStack())
}

执行后,输出结果为:

2019-07-12 22:20:28.070 Stack:
1. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:11

2019-07-12 22:20:28.070 Stack:
1. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:12

1. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:14

1. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:15

示例3,打印gerror.Error

glog日志模块支持对标准错误以及gerror错误的堆栈打印支持。

package main

import (
	"errors"
	"github.com/gogf/gf/g/errors/gerror"
	"github.com/gogf/gf/g/os/glog"
)

func MakeError() error {
	return errors.New("connection closed with normal error")
}

func MakeGError() error {
	return gerror.New("connection closed with gerror")
}

func TestGError() {
	err1 := MakeError()
	err2 := MakeGError()
	glog.Error(err1)
	glog.Error(err2)
}

func main() {
	TestGError()
}

执行后,终端输出:

2019-07-12 22:23:11.467 [ERRO] connection closed with normal error 
Stack:
1. main.TestGError
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:20
2. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25

2019-07-12 22:23:11.467 [ERRO] connection closed with gerror
1. connection closed with gerror
    1). main.MakeGError
        /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:14
    2). main.TestGError
        /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:19
    3). main.main
        /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25
Stack:
1. main.TestGError
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:21
2. main.main
   /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25