Vueelectron前端开启局域网接口实现流程详细介绍

// 获取本机的局域网IP
function getServerIp() {
  let interfaces = os.networkInterfaces();
  for (let devName in interfaces) {
    let iface = interfaces[devName];
    for (let i = 0; i < iface.length; i++) {
      let alias = iface[i];
      if (alias.family === 'IPv4' && alias.address !== '127.0.0.1' && !alias.internal) {
        return alias.address;
      }
    }
  }
}

// 开启局域网接口
function openServer(): Promise<string> {
  // 防止重复开启
   closeServer()
  // 获取本机的局域网IP和自定义端口
  let SERVER_PORT = 65526
  let SERVER_IP = getServerIp()
  server = http.createServer()
  server.on('request', (req: any, res: any) => {
    // 防止跨域
    res.writeHead(200, { "Content-Type": "application/JSON;charset=utf-8", "access-control-allow-origin": "*" })
    // 监听 '/api/authentication'
    if (req.method === 'POST' && req.url === '/api/authentication') {
      let context = {
        code: 200,
        data: { type: 'Hello World!' }
      }
      res.end(jsON.stringify(context))
    }
  })
  // 返回端口开启结果
  return new Promise<string>((resolve, reject) => {
    server.listen(SERVER_PORT, SERVER_IP, () => {
      // 服务器正确开启
      resolve(`服务器开启成功，服务器地址: http://${SERVER_IP}:${SERVER_PORT}`)
    })
    server.on('error', (err: any) => {
      if (err.code === 'EADDRINUSE') {
        // 服务器端口已经被使用
        reject(`端口:${SERVER_PORT}被占用,请更换占用端口`)
      }
    })
  })
}

// 关闭server
function closeServer(): void {
  server && server.removeAllListeners();
  server && server.close(() => {
    console.log("服务接口关闭");
  });
}

const os = require('os');
const http = require('http')
let server: any
// 开启局域网接口
function openServer(): Promise<string> {
  // 防止重复开启
  closeServer()
  // 获取本机的局域网IP和自定义端口
  let SERVER_PORT = 65526
  let SERVER_IP = getServerIp()
  server = http.createServer()
  server.on('request', (req: any, res: any) => {
    // 防止跨域
    res.writeHead(200, { "Content-Type": "application/json;charset=utf-8", "access-control-allow-origin": "*" })
    // 监听 '/api/authentication'
    if (req.method === 'POST' && req.url === '/api/authentication') {
      let context = {
        code: 200,
        data: { type: 'Hello World!' }
      }
      res.end(JSON.stringify(context))
    }
  })
  // 返回端口开启结果
  return new Promise<string>((resolve, reject) => {
    server.listen(SERVER_PORT, SERVER_IP, () => {
      // 服务器正确开启
      resolve(`服务器开启成功，服务器地址: http://${SERVER_IP}:${SERVER_PORT}`)
    })
    server.on('error', (err: any) => {
      if (err.code === 'EADDRINUSE') {
        // 服务器端口已经被使用
        reject(`端口:${SERVER_PORT}被占用,请更换占用端口`)
      }
    })
  })
}
// 关闭server
function closeServer(): void {
  server && server.removeAllListeners();
  server && server.close(() => {
    console.log("服务接口关闭");
  });
}
// 获取本机的局域网IP
function getServerIp() {
  let interfaces = os.networkInterfaces();
  for (let devName in interfaces) {
    let iface = interfaces[devName];
    for (let i = 0; i < iface.length; i++) {
      let alias = iface[i];
      if (alias.family === 'IPv4' && alias.address !== '127.0.0.1' && !alias.internal) {
        return alias.address;
      }
    }
  }
}
export {
  openServer,
  closeServer
}