Ajax.Request 设置超时时间

时间：2008-05-25 来源：Aowken

今天看到jason的一段代码用来给所有Ajax.Request设置超时时间，但如果想给每个Ajax.request设置不同的超时间呢？我改了改（黑体部分）如下： function callInProgress (xmlhttp) {
  switch (xmlhttp.readyState) {
    case 1: case 2: case 3:
      return true;
      break;
    // Case 4 and 0
    default:
      return false;
      break;
  }
}
function showFailureMessage() {
  alert('uh oh, it looks like the network is down. Try again shortly');
}
// Register global responders that will occur on all AJAX requests
Ajax.Responders.register({
  onCreate: function(request) {
    request['timeoutId'] = window.setTimeout(
     function() {
       // If we have hit the timeout and the AJAX request is active, abort it and let the user know
       if (callInProgress(request.transport)) {
       request.transport.abort();
       showFailureMessage();
       // Run the onFailure method if we set one up when creating the AJAX object
         if (request.options['onFailure']) {
           request.options['onFailure'](request.transport, request.json);
         }
       }
     }, request.options.timeoutSeconds?request.options.timeoutSeconds*1000:30*1000
    );
  },
  onComplete: function(request) {
    // Clear the timeout, the request completed ok
    window.clearTimeout(request['timeoutId']);
  }
}); 像下面这样调用：
new Ajax.Request(url, {
   timeoutSeconds:5,
   parameters:{ //code... },
   onSuccess: function(transport) { //code... }
}); 通常要想以后注销responder得这样： var Responder = {     onCreate: function(request){//code...},     onComplete: function(request){//code...} }; Ajax.Responders.register(Responder); Ajax.Responders.unregister(Responder); 引用http://codejanitor.com/wp/2006/03/23/ajax-timeouts-with-prototype/

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