ap.onSocketError 监听 WebSocket 报错事件

ap.onSocketError(CALLBACK)

监听 WebSocket 报错事件。

代码示例

<script src="https://gw.alipayobjects.com/as/g/h5-lib/alipayjsapi/3.1.1/alipayjsapi.inc.min.js"></script>

<style>
.output{ display:block; max-width: 100%; overflow: auto}
.img{ display:block; max-width: 100%; margin: 20px auto;}
</style>
<button class="btn btn-default">建立链接</button>
<button class="btn btn-default">发送数据</button>
<button class="btn btn-default">关闭链接</button>

<script>
  var btnConnect = document.querySelector('#J_btn_connect');
  var btnSend = document.querySelector('#J_btn_send');
  var btnClose = document.querySelector('#J_btn_close');
  var counter = 0;
  ap.onSocketOpen(function(){
    ap.showToast('socket 已开启');
  });
  ap.onSocketError(function(){
    ap.showToast('socket 出错');
  });
  ap.onSocketClose(function(){
    ap.showToast('socket 已关闭');
  });
  ap.onSocketMessage(function(res) {
    ap.showToast('收到服务器内容：' + res.data)
  })
  btnConnect.addEventListener('click', function(){
    ap.connectSocket({
      url: 'ws://127.0.0.1:8088',
      data: {
        b: '1234567890',
        c: 9999
      },
      headers: {
        a: '0987654321'
      }
    });
  });
  btnSend.addEventListener('click', function(){
    counter ++;
    ap.sendSocketMessage({
      data: counter+''
    }, function(res){
      console.warn(res);
    });
  });
  btnClose.addEventListener('click', function(){
    counter ++;
    ap.closeSocket();
  });


</script>