Multiple Connection Problem
Posted: Mon Jun 29, 2015 4:20 pmI am trying to make a web-server with ESP8266.
I wrote some code to send GET request to the server.
So a problem is occurring when one connection is opened and I send another GET request without closing the connection. The ESP is taking the second request as a different connection and after that it just hangs and works incorrectly until restarted.
The response of ESP looked like this, though the requests were from the same IP.
But this does not happen when I send data from some TCP Client software like Hercules, every data comes in the same connection, and everything works fine.
How do I get around this problem?
I wrote some code to send GET request to the server.
Code: Select all
<html>
<head>
<title>ESP8266 LED Control</title>
</head>
<body>
<!-- in the <button> tags below the ID attribute is the value sent to the arduino -->
<button id="11" class="led">Toggle Pin 11</button> <!-- button for pin 11 -->
<button id="12" class="led">Toggle Pin 12</button> <!-- button for pin 12 -->
<button id="13" class="led">Toggle Pin 13</button> <!-- button for pin 13 -->
<script src="jquery.min.js"></script>
<script type="text/javascript">
$(document).ready(function(){
$(".led").click(function(){
var p = $(this).attr('id'); // get id value (i.e. pin13, pin12, or pin11)
// send HTTP GET request to the IP address with the parameter "pin" and value "p", then execute the function
$.get("http://192.168.0.101:80/", {pin:p}); // execute get request
});
});
</script>
</body>
</html>So a problem is occurring when one connection is opened and I send another GET request without closing the connection. The ESP is taking the second request as a different connection and after that it just hangs and works incorrectly until restarted.
The response of ESP looked like this, though the requests were from the same IP.
Code: Select all
0,CONNECT
+IPD,0,374:GET /?pin=12 HTTP/1.1
Host: 192.168.0.101
Connection: keep-alive
Cache-Control: max-age=0
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8
1,CONNECT
+IPD,1,348:GET /?pin=11 HTTP/1.1
Host: 192.168.0.101
Connection: keep-alive
Accept: text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8
User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/43.0.2357.130 Safari/537.36
Accept-Encoding: gzip, deflate, sdch
Accept-Language: en-US,en;q=0.8
AT+CIPCLOSE=0
busy p...
AT+CIPCLOSE=1
busy p...
But this does not happen when I send data from some TCP Client software like Hercules, every data comes in the same connection, and everything works fine.
How do I get around this problem?