offline-pdf-app/main.js

const { app, BrowserWindow, BrowserView, Tray, Menu, nativeImage, screen } = require('electron')
const child_process = require('child_process');
const { exec } = child_process
const { error } = require('console');
const { stdout, stderr, argv0 } = require('process');
const path = require('path')

const { createPort, getRunPort } = require('./server/index')

app.disableHardwareAcceleration();
app.commandLine.appendSwitch('use-angle', 'd3d9');

function createWindow (port) {

  const { width, height } = screen.getPrimaryDisplay().workAreaSize;

  const mainWindow = new BrowserWindow({
    width: width,
    height: height,// 设置打开的窗口大小
    // fullscreen: true,
    // simpleFullScreen: true,
    focusable: true,
    useContentSize: true,
    menuBarVisible : false,
    enableLargerThanScreen: true,
    autoHideMenuBar: true,
    icon: 'logo.png',
    webPreferences: {
      contextIsolation: false,
      // worldSafeExecuteJavaScript:a flse,
      // webSecurity: false,
      nodeIntegration: true, // 是否集成node.js，解决require is not defined问题
      // nodeIntegrationInWorker: true,
      // webviewTag: true, // 解决webview无法显示问题w
      // enableRemoteModule: true,
    }
  });

  const { setTimeout } = require('timers')

  createPort((port) => {
    setTimeout(() => {
      var view = new BrowserView()    // new出对象
      mainWindow.setBrowserView(view)   // 在主窗口中设置view可用
      view.setBounds({x: 0,y: 0, width: width , height: height})  // 定义view的具体样式和位置
      view.setAutoResize({width: true, height: true})
      view.useContentSize  = true
      view.webContents.loadURL('http://localhost:' + port + '/html')  // wiew载入的页面
    }, 1000)
  
    mainWindow.on('closed', () => {
      console.log('mainWindow ---closed', );
      closePort(port)
    });
  })
 

}

app.on('ready', () => {
  createWindow()
})

app.on('window-all-closed', () => {
  if (process.platform !== 'darwin') {
      app.quit()
  }
  console.log('window-all-closed active');


})

app.on('activate', () => {
  app.setName('中德智慧思维芯资源库')
  if (BrowserWindow.getAllWindows().length === 0) {

  }
})


// 创建函数来关闭指定端口的进程
function closePort(port) {
  // 使用 netstat 查找占用端口的进程
  exec(`netstat -ano | findstr :${port}`, (error, stdout, stderr) => {
      if (error) {
          console.error(`exec error: ${error}`);
          return;
      }

      if (!stdout) {
          console.log(`prop ${port} not has`);
          return;
      }

      // 输出的最后一列是 PID
      const lines = stdout.trim().split('\n');
      lines.forEach(line => {
          const parts = line.trim().split(/\s+/);
          const pid = parts[parts.length - 1];
          console.log(`port ${port}  PID is ${pid} progress has`);

          // 使用 taskkill 命令终止进程
          exec(`taskkill /F /PID ${pid}`, (error, stdout, stderr) => {
              if (error) {
                  console.error(`unstop PID: ${pid} - ${error}`);
                  return;
              }
              console.log(`success stop PID: ${pid}`);
          });
      });
  });
}