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完整的方法列表可参考接口文档:http://godoc.org/github.com/gogf/gf/os/glog
glog
模块支持非常简便的链式操作
方式,主要的链式操作方法如下:
// 重定向日志输出接口
func To(writer io.Writer) *Logger
// 日志内容输出到目录
func Path(path string) *Logger
// 设置日志文件分类
func Cat(category string) *Logger
// 设置日志文件格式
func File(file string) *Logger
// 设置日志打印级别
func Level(level int) *Logger
// 设置日志打印级别(字符串)
func LevelStr(levelStr string) *Logger
// 是否开启trace打印
func Stack(enabled bool) *Logger
// 开启trace打印并设定过滤trace的字符串
func StackWithFilter(filter string) *Logger
// 是否开启终端输出
func Stdout(enabled...bool) *Logger
// 是否输出日志头信息
func Header(enabled...bool) *Logger
// 输出日志调用行号信息
func Line(long...bool) *Logger
// 设置文件回溯值
func Skip(skip int) *Logger
// 异步输出日志
func Async(enabled...bool) *Logger
示例1, 基本使用
package main
import (
"github.com/gogf/gf/os/glog"
"github.com/gogf/gf/os/gfile"
"github.com/gogf/gf/frame/g"
)
func main() {
path := "/tmp/glog-cat"
glog.SetPath(path)
glog.Stdout(false).Cat("cat1").Cat("cat2").Println("test")
list, err := gfile.ScanDir(path, "*", true)
g.Dump(err)
g.Dump(list)
}
执行后,输出结果为:
null
[
"/tmp/glog-cat/cat1",
"/tmp/glog-cat/cat1/cat2",
"/tmp/glog-cat/cat1/cat2/2018-10-10.log",
]
示例2, 打印调用行号
package main
import (
"github.com/gogf/gf/os/glog"
)
func main() {
glog.Line().Println("this is the short file name with its line number")
glog.Line(true).Println("lone file name with line number")
}
执行后,终端输出结果为:
2019-05-23 09:22:58.141 glog_line.go:8: this is the short file name with its line number
2019-05-23 09:22:58.142 /Users/john/Workspace/Go/GOPATH/src/github.com/gogf/gf/geg/os/glog/glog_line.go:9: lone file name with line number
示例3, 文件回溯Skip
有时我们通过一些模块封装了glog
模块来打印日志,例如封装了一个common
包通过common.PrintLog
来打印日志,这个时候打印出来的调用文件行号总是同一个位置,因为对于glog
来讲,它的调用方即总是common.PrintLog
方法。这个时候,我们可以通过设置回溯值来跳过回溯的文件数,使用SetStackSkip
或者链式方法Skip
实现。
文件回溯值的设置同样也会影响
Stack
调用回溯打印结果。
package main
import (
"github.com/gogf/gf/os/glog"
)
func PrintLog(content string) {
glog.Skip(1).Line().Println("line number with skip:", content)
glog.Line().Println("line number without skip:", content)
}
func main() {
PrintLog("just test")
}
执行后,终端输出结果为:
2019-05-23 19:30:10.984 glog_line2.go:13: line number with skip: just test
2019-05-23 19:30:10.984 glog_line2.go:9: line number without skip: just test
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