使用第三方模块

"github.com/hpcloud/tail"

初始化Tail指针

package logtail

import (
	"fmt"

	"github.com/hpcloud/tail"
)

var (
	tailObj *tail.Tail
)

func Init(path string) (err error) {
	tailObj, err = tail.TailFile(path, tail.Config{Follow: true, ReOpen: true, MustExist: false})
	if err != nil {
		fmt.Printf("init logtail failed,%v\n", err)
		return
	}
	return
}

读取指针返回的内容

func ReadLinesChan() chan *tail.Line {
	return tailObj.Lines
	// Lines返回的是一个管道chan,管道里面存的是tail.Line每行的指针
}

从管道里取数据,取的就是文件每行追加的内容

line := <- ReadLinesChan()
fmt.Printf("tail line:%v\n", line.Text)

标签：tailObj,return,err,tail,logtail,指针
来源： https://www.cnblogs.com/PythonOrg/p/16311207.html