multithreading - Java ConnectionException Server - Client Chat -


i'm not in java i'm still learning. wanted write simple server client chat (multithreaded) got stuck...
after added threads client isn't working anymore. start server , client , takes 1 3 seconds till client crashes... error below
when server echo server worked fine after adding threads there problem!

java code client: 

import java.io.bufferedreader; import java.io.ioexception; import java.io.inputstream; import java.io.inputstreamreader; import java.io.outputstream; import java.io.printwriter; import java.net.socket; import java.net.unknownhostexception; import java.util.scanner;   public class client {      public static void main(string[] args) {          int port = 40960;         string host = "127.0.0.1";         string newline = "\n";         string clientname = "jonathan";          scanner input = new scanner(system.in);          try {              socket client = new socket(host, port);              system.out.println("client started");              outputstream out = client.getoutputstream();             printwriter writer = new printwriter(out);              inputstream in = client.getinputstream();             bufferedreader reader = new bufferedreader(new inputstreamreader(in));              string = input.nextline();              writer.write(clientname + ": " + + newline);             writer.flush();              string s = null;              while((s = reader.readline()) != null) {                  system.out.println(s);              }              writer.close();             reader.close();             client.close();          }          catch (unknownhostexception e) {              e.printstacktrace();          }          catch (ioexception e) {              e.printstacktrace();          }        }  }

connectionexception

java.net.connectexception: connection refused: connect     @ java.net.dualstackplainsocketimpl.connect0(native method)     @ java.net.dualstackplainsocketimpl.socketconnect(unknown source)     @ java.net.abstractplainsocketimpl.doconnect(unknown source)     @ java.net.abstractplainsocketimpl.connecttoaddress(unknown source)     @ java.net.abstractplainsocketimpl.connect(unknown source)     @ java.net.plainsocketimpl.connect(unknown source)     @ java.net.sockssocketimpl.connect(unknown source)     @ java.net.socket.connect(unknown source)     @ java.net.socket.connect(unknown source)     @ java.net.socket.<init>(unknown source)     @ java.net.socket.<init>(unknown source)     @ client.main(client.java:25)

server code

import java.io.ioexception; import java.net.serversocket; import java.net.socket; import java.util.concurrent.executorservice; import java.util.concurrent.executors;   public class server {      public static void main(string[] args) {         int port = 40480;         int max = 10;          executorservice executor = executors.newfixedthreadpool(max);          try {             serversocket server = new serversocket(port);             system.out.print("server started");              while(true) {                  try {                     socket client = server.accept();                     executor.execute(new handler(client));                  }                  catch (ioexception e) {                     e.printstacktrace();                  }              }          } catch(exception e) {             e.printstacktrace();          }      }  }

i don't know problem is...
hope can me! thanks!!!


Comments

Post a Comment

Popular posts from this blog

javascript - RequestAnimationFrame not working when exiting fullscreen switching space on Safari -

request animation frame stops working when exiting fullscreen clicking on original space's safari window. fine if fullscreen mode canceled escape key or calling cancelfullscreen(). steps reproduce: open https://dl.dropboxusercontent.com/u/769042/prezi/safari-fullscreen.html click "draw raf", kittie appears click "fullscreen", go fullscreen click "draw raf", kittie appears go space original safari was, showing "click exit fullscreen mode", click anywhere, out fullscreen click "draw raf", nothing happens what handling click calling: window.requestanimationframe(draw); which draws on canvas context: function draw() { ctx.drawimage(img, math.random()*500|0, math.random()*400|0, 100, 100); } i checked .hidden , .visibilitystate, updated correctly. tested on osx 10.9.3, safari 7.0.4 (9537.76.4). has workaround/solution other switching old settimeout? this sounds webkit bug 88940 : using reque...
Read more

jsf - How to ajax update an item in the footer of a PrimeFaces dataTable? -

this visual of table have: +---------+------------+-------------------+ | header1 | header2 | header3 | +---------+------------+-------------------+ | row | input | calc'ed output | | row b | input b | calc'ed output b | | etc.. | etc.. | etc.. | +---------+------------+-------------------+ | total: total calc'ed output | +------------------------------------------+ and stripped-down code: <p:datatable id="mytable" value="#{mybean.somelist}" var="currentitem"> <p:column headertext="header1"> <h:outputtext value="#{currentitem.name}" /> </p:column> <p:column headertext="header2"> <pe:inputnumber value="#{currentitem.inputval}"> <p:ajax event="change" listener="#{mybean.changelistener}" update="outputval outputtotal...
Read more

django - CSRF verification failed. Request aborted. CSRF cookie not set -

error: reason given failure: csrf cookie not set. in general, can occur when there genuine cross site request forgery, or when django's csrf mechanism has not been used correctly. post forms, need ensure: browser accepting cookies. view function uses requestcontext template, instead of context. in template, there {% csrf_token %} template tag inside each post form targets internal url. if not using csrfviewmiddleware, must use csrf_protect on views use csrf_token template tag, accept post data. you're seeing section of page because have debug = true in django settings file. change false, , initial error message displayed. can customize page using csrf_failure_view setting. did find, nothing helped, must foolish(( my template <form method="post">{% csrf_token %} {% field in form %} <div class="control-group"> {{ field }} </div> {% endfor %} <input type=...
Read more