jQuery support Transfer-Encoding:chunked

Zaric Zhang picture Zaric Zhang · May 25, 2012 · Viewed 8.8k times · Source

i'm a web developer. in my script use header() to set "Transfer-Encoding:chunked". and flush() to webpage. it will print in webpage time-shared. it works ok. but, when i use jQuery.ajax() to request this.it always output all together(chunked unuseful).

how to solute this? use chunked encoding in jQuery ajax?

Answer

Partha Pal picture Partha Pal · Jul 5, 2012

you cannot use jquery.ajax to read chunked http response continuously. jquery ajax will call the success callback function only when connection terminates. You should use this jquery plugin.

if you are using php then you can use this code:

 <html>
        <head>
            <script src="jquery-1.4.4.js"></script>
            <script src="jquery.stream-1.2.js"></script>
            <script>

                var println = function(string){
                    $("#console").append(string+"<br />");
                }

                $(document).ready(function(){



                    $.stream("stream.php",{
                        open:function(){
                            println("opened");
                        },
                        message:function(event){
                            println(event.data);
                        },
                        error:function(){
                            println("error");
                        },
                        close:function(){
                            println("closed");
                        }
                    });



                });
            </script>
        </head>
        <body>


            <div id="console"></div>

        </body>
    </html>

in the server side :

stream.php

<?php


   header('Content-Encoding', 'chunked');
   header('Transfer-Encoding', 'chunked');
   header('Content-Type', 'text/html');
   header('Connection', 'keep-alive');

   ob_flush();
   flush();

   echo("23123454645645646;");


   $p = "";
   for ($i=0; $i < 1024; $i++) { 
       $p .= " ";
   };
   echo($p.";");



   for ($i = 0; $i < 10000; $i++) {
      echo('6;string;');
      ob_flush();
      flush();
      sleep(2);
   }




?>