data send by firefox tcp socket.send() can't retrive until close the socket

问题

I'm trying to send some data from Firefox to java desktop application .so my java class work as a server and Firefox script work as a client .when i test it using another java class which is client.java data successfully sent to server.java how ever when i use this firefox script to send data ,it actually connect to the server .but send("text"); doesn't work realtime .i mean sever shows received data when i close the socket socket.close(); . but i know there is no problem with server.java code.

this doesn't work

setTimeout(function(){socket.send("i'm firefox");},5000); // because socket isn't closed yet

this work

setTimeout(function(){socket.send("i'm firefox");},5000);
setTimeout(function(){socket.close();},6000);

but i really don't want to close the socket because i want to send lot of data one by one.

here is the complete code tested on scratchpad [-browser]

var tcpSocket = Cc["@mozilla.org/tcp-socket;1"].createInstance(Ci.nsIDOMTCPSocket);
var socket = tcpSocket.open("127.0.0.1", 5000);

setTimeout(function(){socket.send("i'm firefox");},5000);
//setTimeout(function(){socket.close();},8000);// i'm firefox text retrieve by server when run this line / when close the socket.

i think java code isn't important.but here it is.

I'm asking why do i need to close the socket to send data ? and how can i send data without close the socket ?

update

i made a Gif to show my problem here you can see data not sending real time but when socket is closed all the data flushed .

回答1:

It's actually working. Your data is being received, but you're currently waiting for a new line to print your received messages:

while ((inputLine = in.readLine()) != null) {
    System.out.println("Server: " + inputLine);
    out.println(inputLine);

    if (inputLine.equals("Bye.")) {
        break;
    }
}

Which currently only happens when you close the socket. Just add a new line at the end of your messages and it will work as expected:

var tcpSocket = Cc["@mozilla.org/tcp-socket;1"].createInstance(Ci.nsIDOMTCPSocket);
var socket    = tcpSocket.open("127.0.0.1", 5000);

function sendMessage(msg){
    socket.send(msg + "\n");
}

setTimeout(function(){
    sendMessage("hi mark");
},3000);

setTimeout(function(){
    sendMessage("hi johnny");
},5000);

来源：https://stackoverflow.com/questions/32556786/data-send-by-firefox-tcp-socket-send-cant-retrive-until-close-the-socket

标签

javascript

firefox-addon

firefox-addon-sdk

tcpsocket