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（win环境）使用Electron打造一个桌面应用翻译小工具
初始化项目
npm init
修改package.json
{
"name": "trans",
"version": "1.0.0",
"main": "main.js",
"license": "MIT",
"scripts": {
"start": "electron .",
"build":"electron-packager . --overwrite --icon=./favicon.ico"
},
"devDependencies": {
"electron": "^9.0.5"
}
}
安装electron依赖
因为之前我们在package.json已经编辑过了devDependencies，所以我们直接。
npm install
创建编辑文件
分别创建两个文件index.html和main.js。
appid 与 key 需要自己去申请。这是网址：百度翻译编辑平台
index.html
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>翻译小工具</title>
<!-- https://electronjs.org/docs/tutorial/security#csp-meta-tag -->
<meta http-equiv="Content-Security-Policy" content="script-src 'self' 'unsafe-inline';" />
<style>
input,textarea,select{ border: 1px solid #ccc;border-radius: 4px;font-family: Helvetica Neue,Helvetica,PingFang SC,Hiragino Sans GB,Microsoft YaHei,SimSun,sans-serif; }
input { width: 100%; padding: 10px;box-sizing: border-box; margin: 20px 0;}
textarea { display: block;padding: 10px ; margin-top: 20px; width: 100%; height: 200px; text-align: left; resize: none; box-sizing: border-box; overflow: auto; }
button{ width: 80px; height: 40px;border: none; background: #FFB90F; color: white; font-size: 14px; text-align: center; line-height: 40px; border-radius: 4px; cursor: pointer; margin-bottom:20px; }
button:hover{ filter:brightness(110%); }
button:active{ filter:brightness(60%); }
select{padding: 10px;}
.box { width: 750px; height: 600px; margin: 0 auto; }
</style>
</head>
<body>
<div class="box">
<input placeholder="请输入要翻译的内容" class="int">
<select>
<option value="中译英">中译英</option>
<option value="英译中">英译中</option>
</select>
<button>翻译</button>
<textarea placeholder="这里是翻译的内容"></textarea>
</div>
<script src="md5.js"></script>
<script>
var btn = document.querySelector("button");
var int = document.querySelector("input");
var te = document.querySelector("textarea");
var myselect=document.querySelector("select");
var textarea = document.querySelector("textarea");
btn.onclick=function(){
english();
}
document.onkeyup = function (e) {
if (e.keyCode == "13" && int.value != "") {
english();
}
}
function english() {
var index=myselect.selectedIndex;
var value = myselect.options[index].value;
console.log(int.value);
if (value === "中译英") {
var appid = ''; // 需要自己申请
var key = ''; // 需要自己申请
var salt = (new Date).getTime();
var query = int.value;
var str1 = appid + query + salt + key;
var sign = MD5(str1);
var url = `http://api.fanyi.baidu.com/api/trans/vip/translate?q=${query}&appid=${appid}&salt=${salt}&from=zh&to=en&sign=${sign}`;
fetch(url).then(res =>res.json() ).then(response => textarea.value = response.trans_result[0].dst).catch(error => console.error('Error:', error))
} else {
var appid = ''; // 需要自己申请
var key = ''; // 需要自己申请
var salt = (new Date).getTime();
var query = int.value;
var str1 = appid + query + salt + key;
var sign = MD5(str1);
var url = `http://api.fanyi.baidu.com/api/trans/vip/translate?q=${query}&appid=${appid}&salt=${salt}&from=en&to=zh&sign=${sign}`;
fetch(url).then(res =>res.json() ).then(response => textarea.value = response.trans_result[0].dst).catch(error => console.error('Error:', error))
}
}
</script>
</body>
</html>
main.js
// main.js
const { app, BrowserWindow,Menu } = require('electron')
function createWindow () {
// 创建浏览器窗口
Menu.setApplicationMenu(null)
const win = new BrowserWindow({
width: 800,
height: 700,
webPreferences: {
nodeIntegration: true
}
})
// 并且为你的应用加载index.html
win.loadFile('index.html')
// 打开开发者工具
// win.webContents.openDevTools()
}
// Electron会在初始化完成并且准备好创建浏览器窗口时调用这个方法
// 部分 API 在 ready 事件触发后才能使用。
app.whenReady().then(createWindow)
//当所有窗口都被关闭后退出
app.on('window-all-closed', () => {
// 在 macOS 上，除非用户用 Cmd + Q 确定地退出，
// 否则绝大部分应用及其菜单栏会保持激活。
if (process.platform !== 'darwin') {
app.quit()
}
})
app.on('activate', () => {
// 在macOS上，当单击dock图标并且没有其他窗口打开时，
// 通常在应用程序中重新创建一个窗口。
if (BrowserWindow.getAllWindows().length === 0) {
createWindow()
}
})
// 您可以把应用程序其他的流程写在在此文件中
// 代码 也可以拆分成几个文件，然后用 require 导入。
引入md5.js
var MD5 = function (string) {
function RotateLeft(lValue, iShiftBits) {
return (lValue<<iShiftBits) | (lValue>>>(32-iShiftBits));
}
function AddUnsigned(lX,lY) {
var lX4,lY4,lX8,lY8,lResult;
lX8 = (lX & 0x80000000);
lY8 = (lY & 0x80000000);
lX4 = (lX & 0x40000000);
lY4 = (lY & 0x40000000);
lResult = (lX & 0x3FFFFFFF)+(lY & 0x3FFFFFFF);
if (lX4 & lY4) {
return (lResult ^ 0x80000000 ^ lX8 ^ lY8);
}
if (lX4 | lY4) {
if (lResult & 0x40000000) {
return (lResult ^ 0xC0000000 ^ lX8 ^ lY8);
} else {
return (lResult ^ 0x40000000 ^ lX8 ^ lY8);
}
} else {
return (lResult ^ lX8 ^ lY8);
}
}
function F(x,y,z) { return (x & y) | ((~x) & z); }
function G(x,y,z) { return (x & z) | (y & (~z)); }
function H(x,y,z) { return (x ^ y ^ z); }
function I(x,y,z) { return (y ^ (x | (~z))); }
function FF(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(F(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
};
function GG(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(G(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
};
function HH(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(H(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
};
function II(a,b,c,d,x,s,ac) {
a = AddUnsigned(a, AddUnsigned(AddUnsigned(I(b, c, d), x), ac));
return AddUnsigned(RotateLeft(a, s), b);
};
function ConvertToWordArray(string) {
var lWordCount;
var lMessageLength = string.length;
var lNumberOfWords_temp1=lMessageLength + 8;
var lNumberOfWords_temp2=(lNumberOfWords_temp1-(lNumberOfWords_temp1 % 64))/64;
var lNumberOfWords = (lNumberOfWords_temp2+1)*16;
var lWordArray=Array(lNumberOfWords-1);
var lBytePosition = 0;
var lByteCount = 0;
while ( lByteCount < lMessageLength ) {
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = (lWordArray[lWordCount] | (string.charCodeAt(lByteCount)<<lBytePosition));
lByteCount++;
}
lWordCount = (lByteCount-(lByteCount % 4))/4;
lBytePosition = (lByteCount % 4)*8;
lWordArray[lWordCount] = lWordArray[lWordCount] | (0x80<<lBytePosition);
lWordArray[lNumberOfWords-2] = lMessageLength<<3;
lWordArray[lNumberOfWords-1] = lMessageLength>>>29;
return lWordArray;
};
function WordToHex(lValue) {
var WordToHexValue="",WordToHexValue_temp="",lByte,lCount;
for (lCount = 0;lCount<=3;lCount++) {
lByte = (lValue>>>(lCount*8)) & 255;
WordToHexValue_temp = "0" + lByte.toString(16);
WordToHexValue = WordToHexValue + WordToHexValue_temp.substr(WordToHexValue_temp.length-2,2);
}
return WordToHexValue;
};
function Utf8Encode(string) {
string = string.replace(/\r\n/g,"\n");
var utftext = "";
for (var n = 0; n < string.length; n++) {
var c = string.charCodeAt(n);
if (c < 128) {
utftext += String.fromCharCode(c);
}
else if((c > 127) && (c < 2048)) {
utftext += String.fromCharCode((c >> 6) | 192);
utftext += String.fromCharCode((c & 63) | 128);
}
else {
utftext += String.fromCharCode((c >> 12) | 224);
utftext += String.fromCharCode(((c >> 6) & 63) | 128);
utftext += String.fromCharCode((c & 63) | 128);
}
}
return utftext;
};
var x=Array();
var k,AA,BB,CC,DD,a,b,c,d;
var S11=7, S12=12, S13=17, S14=22;
var S21=5, S22=9 , S23=14, S24=20;
var S31=4, S32=11, S33=16, S34=23;
var S41=6, S42=10, S43=15, S44=21;
string = Utf8Encode(string);
x = ConvertToWordArray(string);
a = 0x67452301; b = 0xEFCDAB89; c = 0x98BADCFE; d = 0x10325476;
for (k=0;k<x.length;k+=16) {
AA=a; BB=b; CC=c; DD=d;
a=FF(a,b,c,d,x[k+0], S11,0xD76AA478);
d=FF(d,a,b,c,x[k+1], S12,0xE8C7B756);
c=FF(c,d,a,b,x[k+2], S13,0x242070DB);
b=FF(b,c,d,a,x[k+3], S14,0xC1BDCEEE);
a=FF(a,b,c,d,x[k+4], S11,0xF57C0FAF);
d=FF(d,a,b,c,x[k+5], S12,0x4787C62A);
c=FF(c,d,a,b,x[k+6], S13,0xA8304613);
b=FF(b,c,d,a,x[k+7], S14,0xFD469501);
a=FF(a,b,c,d,x[k+8], S11,0x698098D8);
d=FF(d,a,b,c,x[k+9], S12,0x8B44F7AF);
c=FF(c,d,a,b,x[k+10],S13,0xFFFF5BB1);
b=FF(b,c,d,a,x[k+11],S14,0x895CD7BE);
a=FF(a,b,c,d,x[k+12],S11,0x6B901122);
d=FF(d,a,b,c,x[k+13],S12,0xFD987193);
c=FF(c,d,a,b,x[k+14],S13,0xA679438E);
b=FF(b,c,d,a,x[k+15],S14,0x49B40821);
a=GG(a,b,c,d,x[k+1], S21,0xF61E2562);
d=GG(d,a,b,c,x[k+6], S22,0xC040B340);
c=GG(c,d,a,b,x[k+11],S23,0x265E5A51);
b=GG(b,c,d,a,x[k+0], S24,0xE9B6C7AA);
a=GG(a,b,c,d,x[k+5], S21,0xD62F105D);
d=GG(d,a,b,c,x[k+10],S22,0x2441453);
c=GG(c,d,a,b,x[k+15],S23,0xD8A1E681);
b=GG(b,c,d,a,x[k+4], S24,0xE7D3FBC8);
a=GG(a,b,c,d,x[k+9], S21,0x21E1CDE6);
d=GG(d,a,b,c,x[k+14],S22,0xC33707D6);
c=GG(c,d,a,b,x[k+3], S23,0xF4D50D87);
b=GG(b,c,d,a,x[k+8], S24,0x455A14ED);
a=GG(a,b,c,d,x[k+13],S21,0xA9E3E905);
d=GG(d,a,b,c,x[k+2], S22,0xFCEFA3F8);
c=GG(c,d,a,b,x[k+7], S23,0x676F02D9);
b=GG(b,c,d,a,x[k+12],S24,0x8D2A4C8A);
a=HH(a,b,c,d,x[k+5], S31,0xFFFA3942);
d=HH(d,a,b,c,x[k+8], S32,0x8771F681);
c=HH(c,d,a,b,x[k+11],S33,0x6D9D6122);
b=HH(b,c,d,a,x[k+14],S34,0xFDE5380C);
a=HH(a,b,c,d,x[k+1], S31,0xA4BEEA44);
d=HH(d,a,b,c,x[k+4], S32,0x4BDECFA9);
c=HH(c,d,a,b,x[k+7], S33,0xF6BB4B60);
b=HH(b,c,d,a,x[k+10],S34,0xBEBFBC70);
a=HH(a,b,c,d,x[k+13],S31,0x289B7EC6);
d=HH(d,a,b,c,x[k+0], S32,0xEAA127FA);
c=HH(c,d,a,b,x[k+3], S33,0xD4EF3085);
b=HH(b,c,d,a,x[k+6], S34,0x4881D05);
a=HH(a,b,c,d,x[k+9], S31,0xD9D4D039);
d=HH(d,a,b,c,x[k+12],S32,0xE6DB99E5);
c=HH(c,d,a,b,x[k+15],S33,0x1FA27CF8);
b=HH(b,c,d,a,x[k+2], S34,0xC4AC5665);
a=II(a,b,c,d,x[k+0], S41,0xF4292244);
d=II(d,a,b,c,x[k+7], S42,0x432AFF97);
c=II(c,d,a,b,x[k+14],S43,0xAB9423A7);
b=II(b,c,d,a,x[k+5], S44,0xFC93A039);
a=II(a,b,c,d,x[k+12],S41,0x655B59C3);
d=II(d,a,b,c,x[k+3], S42,0x8F0CCC92);
c=II(c,d,a,b,x[k+10],S43,0xFFEFF47D);
b=II(b,c,d,a,x[k+1], S44,0x85845DD1);
a=II(a,b,c,d,x[k+8], S41,0x6FA87E4F);
d=II(d,a,b,c,x[k+15],S42,0xFE2CE6E0);
c=II(c,d,a,b,x[k+6], S43,0xA3014314);
b=II(b,c,d,a,x[k+13],S44,0x4E0811A1);
a=II(a,b,c,d,x[k+4], S41,0xF7537E82);
d=II(d,a,b,c,x[k+11],S42,0xBD3AF235);
c=II(c,d,a,b,x[k+2], S43,0x2AD7D2BB);
b=II(b,c,d,a,x[k+9], S44,0xEB86D391);
a=AddUnsigned(a,AA);
b=AddUnsigned(b,BB);
c=AddUnsigned(c,CC);
d=AddUnsigned(d,DD);
}
var temp = WordToHex(a)+WordToHex(b)+WordToHex(c)+WordToHex(d);
return temp.toLowerCase();
}
引入图标文件
在项目文件夹引入一个ico文件，取名favicon.ico ，这样是为了与之前编辑的package.json编辑的内容匹配。你也可以改成其他的名字。
启动或者打包项目
启动项目
npm start
打包项目
npm build
作者：Vam的金豆之路
主要领域：前端开发
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