• Trace特性
    • 示例1，通过错误方法触发
    • 示例2，通过Stack方法打印
    • 示例3，打印gerror.Error

    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

    1. package main
    3. import "github.com/gogf/gf/g/os/glog"
    5. func Test() {
    6.     glog.Error("This is error!")
    7. }
    9. func main() {
    10.     Test()
    11. }

    打印出的结果如下：

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

    1. package main
    3. import (
    4.     "fmt"
    6.     "github.com/gogf/gf/g/os/glog"
    7. )
    9. func main() {
    11.     glog.PrintStack()
    12.     glog.New().PrintStack()
    14.     fmt.Println(glog.GetStack())
    15.     fmt.Println(glog.New().GetStack())
    16. }

    执行后，输出结果为：

    1. 2019-07-12 22:20:28.070 Stack:
    2. 1. main.main
    3.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:11
    5. 2019-07-12 22:20:28.070 Stack:
    6. 1. main.main
    7.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:12
    9. 1. main.main
    10.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_stack.go:14
    12. 1. main.main
    13.    /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。

    1. package main
    3. import (
    4.     "errors"
    5.     "github.com/gogf/gf/g/errors/gerror"
    6.     "github.com/gogf/gf/g/os/glog"
    7. )
    9. func MakeError() error {
    10.     return errors.New("connection closed with normal error")
    11. }
    13. func MakeGError() error {
    14.     return gerror.New("connection closed with gerror")
    15. }
    17. func TestGError() {
    18.     err1 := MakeError()
    19.     err2 := MakeGError()
    20.     glog.Error(err1)
    21.     glog.Error(err2)
    22. }
    24. func main() {
    25.     TestGError()
    26. }

    执行后，终端输出：

    1. 2019-07-12 22:23:11.467 [ERRO] connection closed with normal error 
    2. Stack:
    3. 1. main.TestGError
    4.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:20
    5. 2. main.main
    6.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25
    8. 2019-07-12 22:23:11.467 [ERRO] connection closed with gerror
    9. 1. connection closed with gerror
    10.     1). main.MakeGError
    11.         /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:14
    12.     2). main.TestGError
    13.         /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:19
    14.     3). main.main
    15.         /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25
    16. Stack:
    17. 1. main.TestGError
    18.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:21
    19. 2. main.main
    20.    /home/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_gerror.go:25