[英]JavaScript WebSocket Try's to open…then closes with no error
我正在嘗試審查WebSockets HTML5和JavaScript的工作方式。 我沒有看到任何錯誤,但是似乎只是掛了一下,然后調用了關閉的回調。 不知道我在做什么錯,但是我會認為在這里調用onopen回調函數。
var socket;
window.onload = function(argument) {
try
{
document.getElementById("console").innerHTML = "Opening WebSocket...";
socket = new WebSocket("ws://undergroundtechnetwork.com:8080/");
socket.onopen = function(){
document.getElementById("console").innerHTML += "<br />WebSocket opened.";
}
socket.onmessage = function(message){
document.getElementById("console").innerHTML += "<br />WebSocket recieved a message: " + message;
}
socket.onclose = function(){
document.getElementById("console").innerHTML += "<br />WebSocket status: " + GetSocketStateName(socket.readyState);
}
socket.onerror = function(e){
document.getElementById("console").innerHTML += "<br />WebSocket error message:<br />" + JSON.stringify(e);
}
}catch(e){
document.getElementById("console").innerHTML += "<br />Exception: " + e;
}
}
function GetSocketStateName(state){
var strSocketState;
if(socket.readyState == 0){
strSocketState = "Connecting";
}else if(socket.readyState == 1){
strSocketState = "Open";
}else if(socket.readyState == 2){
strSocketState = "Closing";
}else if(socket.readyState == 3){
strSocketState = "Closed";
}
return strSocketState;
}
更新:
這是我遇到的錯誤。 我沒有收到8080的錯誤,但這是因為它沒有真正打開(它是托管服務服務器)
{ “cancelBubble”:假 “的returnValue”:真 “srcElement”:{ “binaryType”: “斑點”, “擴展”: “”, “協議”: “”, “bufferedAmount”:0 “readyState的”: 0, “URL”: “WS://undergroundtechnetwork.com/”, “URL”: “WS://undergroundtechnetwork.com/”}, “defaultPrevented”:假的, “時間戳”:1369930726244, “取消”:假的“氣泡”:假 “的EventPhase”:2 “currentTarget當前”:{ “binaryType”: “斑點”, “擴展”: “”, “協議”: “”, “bufferedAmount”:0 “readyState的”: 0, “URL”: “WS://undergroundtechnetwork.com/”, “URL”: “WS://undergroundtechnetwork.com/”}, “目標”:{ “binaryType”: “斑點”, “擴展”: “”, “協議”: “”, “bufferedAmount”:0 “readyState的”:0, “URL”: “WS://undergroundtechnetwork.com/”, “URL”:“WS://undergroundtechnetwork.com/ “},” 類型 “:” 錯誤“}
您的JavaScript似乎還可以。 如果你改變
socket = new WebSocket("ws://undergroundtechnetwork.com:8080/");
可以說
socket = new WebSocket("ws://echo.websocket.org");
它工作正常。 嘗試調整您的WebSocket服務器。
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