comet

问题 With the Net Stream Object with TCP works great (as presetend in the node.js introduction video), but how should I do this in HTTP? Is there a way to access sockets/clients within an http.createServer() ? Or what's the method to do it? I tried to figure out the solution from the official node chat demos souce code, but I don' really understand. I understand the client side js, but what's happening after I(as a client) send a message trough AJAX, to the server side js? How can I send to the

问题 It looks like Websockets in HTML 5 will become a new standard for server push. Does that mean the server push hack called Comet will be obsolete? Is there a reason why I should learn how to implement comet when Websockets soon (1-2 years) will be available in all major browsers? Then I could just use Beaconpush or Pusher instead till then right? 回答1: Does that mean the server push hack called Comet will be obsolete? WebSockets are capable of replacing Comet, AJAX, Long Polling, and all the

问题 I work on a Comet application written in ASP.NET. There is an array of active connection contexts (HttpContext). And there is a thread that should periodically iterate through the collection and check theirs state. So application architecture is not thread-per-request. What is the best way to check that a connection is active (not closed by the remote host)? I found this: context.Response.Write(' '); context.Response.Flush(); if (!context.Response.IsClientConnected) { // ... } But it's not a

问题 I am using a Comet, Realtime engine called APE, and I am using jQuery to refresh a PHP image. Initially I load the image like this: <div id="container"> <img src="image.php" style='background: url(../assets/load.gif) no-repeat center center;margin-left:42px;' alt=' Loading ...' width="500px" height="300px" /> </div> And then when I receive an event I do this: $("#container").empty(); $("#container").html('<img src="image.php?device='+device+'" style="background: url(../assets/load.gif) no

问题 This question already has answers here : “CAUTION: provisional headers are shown” in Chrome debugger (32 answers) Closed 5 years ago . I cant debug this message which appeared like a week ago. I tried restoring to old files but this is odd, nothing solves my problem. So: I have two long polling requests. (turning one of them off does not help). for example this is one of them: public function update_private_messages_ajax_handler(){ global $wpdb; global $bp; $chat_table = $wpdb->prefix . 'bp

问题 In Flex 3 application I use HTTPService class to make requests to the server: var http:HTTPService = new HTTPService(); http.method = 'POST'; http.url = hostUrl; http.resultFormat = 'e4x'; http.addEventListener(ResultEvent.RESULT, ...); http.addEventListener(FaultEvent.FAULT, ...); http.send(params); The application has Comet-architecture. So it makes long running requests. While waiting a response for this request, other requests can be made concurrently. The application works in most cases.

问题 In Flex 3 application I use HTTPService class to make requests to the server: var http:HTTPService = new HTTPService(); http.method = 'POST'; http.url = hostUrl; http.resultFormat = 'e4x'; http.addEventListener(ResultEvent.RESULT, ...); http.addEventListener(FaultEvent.FAULT, ...); http.send(params); The application has Comet-architecture. So it makes long running requests. While waiting a response for this request, other requests can be made concurrently. The application works in most cases.

问题 I built my project using Struts, Spring, and Hibernate. I am using Tomcat for the server. Now I want to implement push notifications in my web application, to perform tasks like updating a table on a view layer according to new data in the database, or show a notification when a certain condition occurs. How can I implement this, and what tools should I use? Maybe Comet or something similar? If you have a link to a tutorial, I would find that helpful. I am also wondering whether this (push)

问题 I built my project using Struts, Spring, and Hibernate. I am using Tomcat for the server. Now I want to implement push notifications in my web application, to perform tasks like updating a table on a view layer according to new data in the database, or show a notification when a certain condition occurs. How can I implement this, and what tools should I use? Maybe Comet or something similar? If you have a link to a tutorial, I would find that helpful. I am also wondering whether this (push)

问题 Can someone please explain me how the "Forever Frame" technique works ? A code example would be awesome! I went through all the material i could find in Google but i still don`t have much of an idea how it works. 回答1: Dylan Schiemann gives a great explanation. In short, it uses "chunked encoding", a feature of HTTP/1.1 intended for an entirely different purpose, but which allows the server to maintain a connection to the client indefinitely, sending additional data to the client at will. As