使用fyne做一个桌面ipv4网段计算程序

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原创 2026-03-24 11:07:17 434 阅读 AI 写同款· GEO 优化 ›

前言

最近做项目，发现内网环境下基本还是ipv4，但是在网络隔离后，需要开墙，开墙需要计算网段，本来也没什么，手工计算一下就行，但是开墙多了计算也很烦，其实做一个网页工具最合适，但是笔者做了一个桌面工具，免得维护，使用go fyne桌面简单做了一个，可以跨平台。附上我自己ARM mac编译的软件。

demo

go开发环境：包括goproxy ide等，fyne的文档：https://docs.fyne.io/started/quick/

执行go get fyne.io/fyne/v2@latest

最新版本是2.7.2

正常写代码

package main

import (
	"fmt"
	"strconv"
	"strings"

	"fyne.io/fyne/v2"
	"fyne.io/fyne/v2/app"
	"fyne.io/fyne/v2/container"
	"fyne.io/fyne/v2/widget"
)

// client use, for server not use global var
var ipv4, netmask string

func main() {
	// build ui for window
	demoApp := app.New()
	// window must init for other ui first
	demoWin := demoApp.NewWindow("net-segment")

	// def input and output entry
	// input for ip
	ipv4Entry := widget.NewEntry()
	ipv4Entry.Move(fyne.NewPos(0, 0))
	ipv4Entry.Resize(fyne.NewSize(200, ipv4Entry.MinSize().Height))
	ipv4Entry.SetPlaceHolder("IPv4 Address")
	ipv4Entry.OnChanged = func(s string) {
		ipv4 = s
	}

	// subnet mask
	subNetmaskEntry := widget.NewEntry()
	subNetmaskEntry.SetPlaceHolder("SubnetMask")
	subNetmaskEntry.OnChanged = func(s string) {
		netmask = s
	}

	// def net segment for output
	netSegmentEntry := widget.NewEntry()
	netSegmentEntry.SetPlaceHolder("NetSegment")
	netSegmentEntry.OnChanged = func(s string) {
		fmt.Println(s)
	}

	//def button for calc
	submitButton := widget.NewButton("Calc netSegment", func() {
		// get data & calc
		// not check null | empty, no need for client self use
		fmt.Println("Calc netSegment ......")
		ips := strings.Split(ipv4, ".")
		subNetmaskIps := strings.Split(netmask, ".")
		var segNum = 0
		var result string
		for i := 0; i < len(ips); i++ {
			ipSeg, _ := strconv.ParseInt(ips[i], 10, 64)
			ipSeg2 := strconv.FormatInt(ipSeg, 2)
			ipSeg2 = fmt.Sprintf("%08s", ipSeg2)

			maskSeg, _ := strconv.ParseInt(subNetmaskIps[i], 10, 64)
			maskSeg2 := strconv.FormatInt(maskSeg, 2)
			maskSeg2 = fmt.Sprintf("%08s", maskSeg2)

			var builder strings.Builder
			for j := 0; j < 8; j++ {
				if maskSeg2[j] == '1' {
					segNum++
					builder.WriteByte(ipSeg2[j])
				} else {
					builder.WriteByte('0')
				}
			}
			ipSeg, _ = strconv.ParseInt(builder.String(), 2, 64)
			ipSeg10 := strconv.FormatInt(ipSeg, 10)
			result += ipSeg10 + "."
		}

		result = result[:len(result)-1] + "/" + strconv.Itoa(segNum)
		netSegmentEntry.SetText(result)
	})

	ipv4Item := widget.NewFormItem("IPv4 Address", ipv4Entry)
	subNetmaskItem := widget.NewFormItem("SubnetMask", subNetmaskEntry)
	formIn := widget.NewForm(ipv4Item, subNetmaskItem)
	netSegmentBoxItem := widget.NewFormItem("NetSegment", netSegmentEntry)
	netSegmentForm := widget.NewForm(netSegmentBoxItem)

	content := container.NewVBox(formIn, submitButton, netSegmentForm)
	demoWin.SetContent(content)
	demoWin.SetFixedSize(true)
	demoWin.Resize(fyne.NewSize(300, 160))
	demoWin.ShowAndRun()
}

使用了form，免得自己调各种样式，这里要注意window一定要先定义

另外计算网段没有使用位运算，如果是服务端，建议使用位运算，虽然难写和理解，但是效率高很多。

结果

测试多次均正确，因为是同环境，如果跨环境，涉及cgo交叉编译，比较麻烦，window的开发涉及系统的UI，fyne没有内置，使用的系统UI函数，所以，需要把相关的dll so dylib纳入项目。

mac桌面程序

写个Info.plist配置一个图标，然后写个脚本，通过脚本即可做成macOS应用app

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
<plist version="1.0">
<dict>
	<key>CFBundleIconFile</key>
	<string>NS</string>
	<key>CFBundlePackageType</key>
	<string>APPL</string>
	<key>CFBundleSignature</key>
	<string>????</string>
	<key>CFBundleExecutable</key>
	<string>net-segment</string>
	<key>CFBundleGetInfoString</key>
	<string>calculate net-segment for ipv4</string>
	<key>CFBundleIdentifier</key>
	<string>net.demo.segment</string>
	<key>CFBundleName</key>
	<string>NetSegment</string>
	<key>LSUIElement</key>
	<string>1</string>
	<key>NSHighResolutionCapable</key>
	<true/>
	<key>NSHumanReadableCopyright</key>
	<string>Distributed under GNU General Public License v3.0</string>
	<key>CFBundleVersion</key>
	<string>1.0</string>
	<key>CFBundleShortVersionString</key>
	<string>1.0</string>
</dict>
</plist>

写个简单脚本

#!/usr/bin

mkdir -p NS.app/Contents/MacOS/
cp net-segment NS.app/Contents/MacOS/
cp -r Info.plist NS.app/Contents
mkdir NS.app/Contents/Resources
cp NS.icns NS.app/Contents/Resources

图标自备，笔者的图标是从其他地方拔下来的，毕竟可能有版权问题