webSocket样例分享，使用WebSocket建立服务器与客户端的双向连接

onConnect() { 
  let promise = socket.connect(this.Adress); 
  promise.then((value) => { 
    Logger.info(TAG, `connect success`); 
  }).catch((error: Error) => { 
    Logger.error(JSON.stringify(error)) 
  }) 
  socket.on('open', (err, value) => { 
    prompt.showToast({ message: 'success', duration: 1500 }); 
  }) 
  socket.on('error', (err) => { 
    Logger.info("on error, error:" + JSON.stringify(err)); 
  }); 
  socket.on('close', (err, val) => { 
    Logger.info("on close:" + JSON.stringify(err)); 
    Logger.info("on close:" + JSON.stringify(val)); 
  }); 
  socket.on('message', (err, value) => { 
    Logger.info(TAG, `on messages, value = ${value}`); 
    if(value.toString().startsWith('INFO')) { 
      const str: string = JSON.stringify({verbose:false,pedantic:false}) 
      socket.send(`CONNECT${msg}\r\n`); 
      console.log(`CONNECT${msg}\r\n`,'test1') 
      const commentTopic: string = " test.example.com 1" 
      const announcementTopic: string = "test.example.com 2" 
      console.log(`${commentTopic} \r\n${announcementTopic}`,'test message') 
      socket.send(`${commentTopic} \r\n${announcementTopic}`) 
      const ping: string = "PING" 
      socket.send(`${ping}`); 
      setInterval(() => { 
        socket.send(`${ping}`); 
      },10000) 
    } 
  }) 
}