Java: problemi di comunicazione tra socket e javascript [Archivio]

linonil

14-06-2011, 14:03

Ciao a tutti,
spero sia la sezione giusta.

Ho un problema di comunicazione tra il mio server java (basato su socket) e il contenuto di una pagina web ottenuto interrogando il mio server con javascript (jquery). Quando viene effettuata la richiesta di servizio da javascript il server risponde ma nessun contenuto viene effettivamente visto da js. Usando il plugin per browser Firebug ho notato che l'intestazione della risposta http viene correttamente interpretata mentre del contenuto neanche l'ombra.
Effettuando la medesima richiesta direttamente dal browser l'xml viene tornato correttamente e con la giusta formattazione.

Vi posto un po' di codice

Java:

package Server;

import java.io.DataOutputStream;
import java.io.IOException;
import java.io.OutputStream;
import java.io.PrintStream;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class ClasseMain {

/**
* @param args
* @throws IOException
*/
public static void main(String[] args) throws IOException {
int i =0;
while(true){
try {
i++;
normalSocket();
} catch (Exception e) {
System.out.println("errore iterazione n: "+i);
}

}
}

static void normalSocket()
{
try{
ServerSocket s= new ServerSocket(8080);
Socket c = s.accept();

System.out.println("\n\n\n\nConnessione stabilita");
PrintWriter o = new PrintWriter(c.getOutputStream(),true);

o.println("HTTP/1.1 200 OK\n"+
// "Server: nginx/1.0.4\n"+
// "Date: Fri, 10 Jun 2011 15:49:08 GMT\n"+
"Content-Type: text/xml; charset=utf-8\n\n" +
// "Transfer-Encoding: chunked\n" +
// "Connection: keep-alive\n" +
// "X-Powered-By: PHP/5.3.5-1ubuntu7.2\n" +
// "P3P: CP="+'"'+"NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"+'"'+"\n\n\n" +
// "225\n" +
"<?xml version="+'"'+"1.0"+'"'+" encoding="+'"'+"UTF-8"+'"'+" ?>\n" +
"<refresh>\n" +
"<item>ciao ciao</item>\n"+
"</refresh>");

System.out.println("HTTP/1.1 200 OK\n"+
// "Server: nginx/1.0.4\n"+
// "Date: Fri, 10 Jun 2011 15:49:08 GMT\n"+
"Content-Type: text/xml; charset=utf-8\n\n" +
// "Transfer-Encoding: chunked\n" +
// "Connection: keep-alive\n" +
// "X-Powered-By: PHP/5.3.5-1ubuntu7.2\n" +
// "P3P: CP="+'"'+"NOI ADM DEV PSAi COM NAV OUR OTRo STP IND DEM"+'"'+"\n\n\n" +
// "225\n" +
"<?xml version="+'"'+"1.0"+'"'+" encoding="+'"'+"UTF-8"+'"'+" ?>\n" +
"<refresh>" +
"<item>ciao ciao</item>"+
"</refresh>");

c.shutdownOutput();
s.close();
}catch (Exception e)
{
System.err.println("errore");
e.printStackTrace();
}

}

}

Ho provato ad usare differenti tipi di streamout (come potete vedere dagli import non cancellati) ma senza alcun successo

Lo sviluppo lato client non è di mia competenza ma per completezza ve lo posto (magari qualcuno ne capisce più di me)

funzioni javascript

$(window).load(refresh());

function refresh() {
getXML();

//setInterval(function(){getXML();},REFRESH);
}

function getXML(){
$.ajax({
type: "POST",
url: URL_REFRESH,
dataType: "xml",
success: parseXml
});

$.timeout(refresh, REFRESH);
}

var i = 0;
var DIFFERENCE = new Date();

function parseXml(xml){
//alert($(xml).text());

//impostazione data server
syncroDate($(xml).find('servertime').text());

//Messaggio
removeMessages();
i=0;
$(xml).find('messages').find('message').each(function(){
//alert($(this));

setMessage($(this));
});

//Sponsor
/*$(xml).find('sponsor').each(function(){

});*/

//settings
$(xml).find('settings').each(function(){
REFRESH = $(this).find('timer').text();
});
}

function setMessage(msg){
//alert(msg);

i++;

var message = "<tr id='controlmsg' class='"+i+"' > <td>"+ msg.find('smsadministrator').text()+
"</td><td>"+msg.find('sender').text()+
"</td><td>"+msg.find('name').text()+
"</td><td><div id='end"+i+"'></div></td><td><div id='actions"+i+"'></div></td></tr>";

if(msg.find('id').text() != ''){
$("#control").append("<tbody>").append(message);
endMessage(msg.find('end').text());
//var mess = msg.find('actioninbox');
actionMessage(msg.find('process').text(), msg.find('actioninbox').find('id').text());//TODO passare l'id del messaggio
}
}

function removeMessages(){
$('table').find('#controlmsg').each(
function(){
$(this).remove();
});
}

function endMessage(end){
if(end != ''){
var date = new Date();
date = Date.parseExact(end, "yyyy-M-d H:mm:ss"); //date = Date.parseExact("2011-04-14 13:59:55", "yyyy-M-d H:mm:ss");
date = date.getTime() + DIFFERENCE;
date = new Date(date);
//alert(date);
$('#end'+i).countdown({until: date, format:'MS'});
}
}

function actionMessage(state,id){
state = (state*1)+1;
var actions = '';
for(var k=state; k<PROCESS.length;k++){
if(PROCESS[k]['name'] != 'onair' && PROCESS[k]['name'] != 'visto' && PROCESS[k]['name'] != 'recheck'){
actions += '<a href="javascript:actionSubmit('+id+', '+PROCESS[k]['values']+')">'+PROCESS[k]['name']+'</a> ';
}
}
$('#actions'+i).append(actions);
}

function actionSubmit(id, process){
var href = URL_PROCESS+'/'+id+'/'+process;
$.get(href,{},function(response){
$('#return').html(response).delay(1800).hide('slow').show();//x fdarlo scomparire dopo 800 millisecond e poi lasciarlo visibile.
});
}

function syncroDate(dateserver){
var server = new Date();
server = Date.parseExact(dateserver, "yyyy-M-d H:mm:ss");

var locale = new Date();
//alert(locale);
DIFFERENCE = (locale.getTime() - server.getTime());
}

html<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> <title>
CakePHP: the rapid development php framework: Control </title>
<script type="text/javascript" src="control_files/jquery.js"></script><link href="http://192.168.1.3/favicon.ico" type="image/x-icon" rel="icon"><link href="http://192.168.1.3/favicon.ico" type="image/x-icon" rel="shortcut icon"><link rel="stylesheet" type="text/css" href="control_files/cake.css"><link rel="stylesheet" type="text/css" href="control_files/menu.css"></head>
<body>
<div id="container">
<div id="header">
<ul id="main-menu" class="menu">
<li class="first-item"><a title="Home" href="http://192.168.1.3/eng/admin">Home</a></li>
<li><a title="User" href="http://192.168.1.3/eng/users">User</a></li>
<li><a title="Sponsor" href="http://192.168.1.3/eng/users/sponsor">Sponsor</a></li>
<li><a title="Style" href="http://192.168.1.3/eng/stylecsses">Style</a></li>
<li><a title="Badword" href="http://192.168.1.3/eng/badwords">Badword</a></li>
<li><a title="Propriety" href="http://192.168.1.3/eng/proprieties">Propriety</a></li>
<li><a title="Identify" href="http://192.168.1.3/eng/identifies">Identify</a></li>
<li class="active"><a title="Control" href="http://192.168.1.3/eng/control">Control</a></li>
<li><a title="Activity" href="http://192.168.1.3/eng/actionproprieties">Activity</a></li>
<li><a title="Logout" href="http://192.168.1.3/eng/users/logout">Logout</a></li>
</ul>
</div>
<div id="content">

<link rel="stylesheet" type="text/css" href="control_files/countdown.css"><script type="text/javascript">
/*
var URL_REFRESH = "http://192.168.1.196:8080/admin.xml";
var URL_PROCESS = "http://192.168.1.3/eng/actioninboxes/setProcess";
var URL_SENDSMS = "http://192.168.1.3/eng/actioninboxes/saveMessageFromPC";
var URL_DISCO = "http://192.168.1.3/eng/actionproprieties/getActivitiesOn";
*/

var URL_REFRESH = "http://127.0.0.1:8080/admin.xml";
var URL_PROCESS = "http://192.168.1.3/eng/actioninboxes/setProcess";
var URL_SENDSMS = "http://192.168.1.3/eng/actioninboxes/saveMessageFromPC";
var URL_DISCO = "http://192.168.1.3/eng/actionproprieties/getActivitiesOn";

var REFRESH = 2000;
var PROCESS = new Array();
PROCESS[0] = new Array(); PROCESS[0]['name'] = 'da_approvare'; PROCESS[0]['values'] = ''; PROCESS[1] = new Array(); PROCESS[1]['name'] = 'approvato'; PROCESS[1]['values'] = '1'; PROCESS[2] = new Array(); PROCESS[2]['name'] = 'onair'; PROCESS[2]['values'] = '2'; PROCESS[3] = new Array(); PROCESS[3]['name'] = 'visto'; PROCESS[3]['values'] = '3'; PROCESS[4] = new Array(); PROCESS[4]['name'] = 'recheck'; PROCESS[4]['values'] = '4'; PROCESS[5] = new Array(); PROCESS[5]['name'] = 'eliminato'; PROCESS[5]['values'] = '9';
</script>
<script type="text/javascript" src="control_files/date.js"></script> <script type="text/javascript" src="control_files/countdown.js"></script> <script type="text/javascript" src="control_files/countdown-it.js"></script> <script type="text/javascript" src="control_files/timeout.js"></script> <script type="text/javascript" src="control_files/control.js"></script> <script type="text/javascript" src="control_files/sendsms.js"></script>

<div class="controlphones index">
<h2>
Control </h2>
<div id="return"></div>
<table id="control" cellpadding="0" cellspacing="0">
<tbody><tr>
<th>SMS</th>
<th>SENDER</th>
<th>LOCATION</th>
<th>END</th>
<th class="actions">Actions</th>
</tr>
</tbody></table>
</div>

<div class="actions">

<h3>Sms AJAX</h3>

<form id="ActioninboxIndexForm" method="post" action="/eng/actioninboxes" accept-charset="utf-8"><div style="display:none;"><input name="_method" value="POST" type="hidden"></div> <fieldset>
<div class="input select"><label for="ActioninboxUserId">User</label><select name="data[Actioninbox][user_id]" id="ActioninboxUserId"><option selected="selected" id="DiscoOnline" value="22">ITdisc1</option></select></div><div class="input textarea"><label for="ActioninboxSmssent">Smssent</label><textarea name="data[Actioninbox][smssent]" cols="30" rows="6" id="ActioninboxSmssent"></textarea></div><input name="data[Actioninbox][idnation]" id="ActioninboxIdnation" type="hidden"> </fieldset>
<div class="submit"><input value="Submit" id="submit1698940554" onclick="return false;" type="submit"></div><script type="text/javascript">
//<![CDATA[
$("#submit1698940554").bind('click', function(){ $.ajax({async:true, type:'post', url:'/eng/Actioninboxes/saveMessageFromPC', data:$(this).parents('form:first').serialize()}); $("#ActioninboxSmssent").val(""); })
//]]>
</script>
</form></div>

</div>
<div id="footer">
<a href="http://www.cakephp.org/" target="_blank"><img src="control_files/cake.gif" alt="CakePHP: the rapid development php framework" border="0"></a> </div>
</div>

</body></html>

infine qualche screenshot di FireBug

http://imageshack.us/photo/my-images/541/schermata20110614a10585.png/

http://imageshack.us/photo/my-images/836/schermata20110614a11033.png/

vi prego, non voglio essere internato in una clinica psichiatrica per così poco.

Grazie a tutti coloro che mi suggeriranno una soluzione al problema o una alternavia