Le développement de Golang-Windows trouve et tue les processus en fonction des numéros de port spécifiés

besoin:

Le développement du programme Golang sous Windows espère trouver l'ID de processus correspondant en fonction du numéro de port spécifié et tuer le processus.

code

Installation de bibliothèque dépendante

go get golang.org/x/text/encoding/simplifiedchinese

package main

import (
	"errors"
	"fmt"
	"golang.org/x/text/encoding/simplifiedchinese"
	"log"
	"os/exec"
	"strconv"
	"strings"
)

// KillProcessByPort 根据端口找到服务并杀死对应进程
func KillProcessByPort(port int) (string, error) {
    
    
	c1 := exec.Command("powershell.exe", "netstat", "-ano", "| findstr", strconv.Itoa(port), "| findstr", "LISTENING")
	output, err := c1.CombinedOutput()
	if err != nil {
    
    
		return "", err
	}
	decodeBytes, _ := simplifiedchinese.GB18030.NewDecoder().Bytes(output)
	strNetstat := string(decodeBytes)

	Pid := "0"

	for _, v := range strings.Split(strNetstat, "\r\n") {
    
    
		for {
    
    
			if strings.Contains(v, "  ") {
    
    
				v = strings.ReplaceAll(v, "  ", " ")
			} else {
    
    
				break
			}
		}
		strings.Trim(v, " ")

		arrTmp := strings.Split(v, " ")
		arr := make([]string, 0)
		for _, vv := range arrTmp {
    
    
			if vv != "" {
    
    
				arr = append(arr, vv)
			}
		}
		if len(arr) == 5 && fmt.Sprintf("0.0.0.0:%v", port) == arr[1] {
    
    
			Pid = arr[4]
			break
		}
	}

	if Pid == "0" {
    
    
		return "", errors.New(fmt.Sprintf("No service with port number %v found", port))
	}

	c2 := exec.Command("powershell.exe", "taskkill -PID ", Pid, "-F")
	output, err = c2.CombinedOutput()
	if err != nil {
    
    
		return "", err
	}
	decodeBytes, _ = simplifiedchinese.GB18030.NewDecoder().Bytes(output)
	delStr := string(decodeBytes)
	return delStr, nil
}

func main() {
    
    
	content, err := KillProcessByPort(65123)
	if err != nil {
    
    
		log.Println("操作失败", err.Error())
	} else {
    
    
		log.Println("操作成功", content)
	}
}