chat application in java

When the java online chat project solves the problem that the client can send messages to the server only once, OutputStreamWriter DataOutputStream socket. getOutputStream (), Client code before the problem is solved: Package com. swift; import java. awt. borderLayout; import java. awt. color; import

Project to do more, recently, to do a project: Java-based simple online chat system, feel very proud of.This project uses the Java programming language to realize the design and implementation of the Web-based text interaction software, and achieves the interactive operation of the multi-client text message. Through the server-side multi-threaded monitoring clien

OneExperimental EnvironmentProgramming language:Java1.8(run in JVM (Java Virsual machine))Development tools:ECLIPCETest environment: LANIi. purpose of the experimentSociety has entered the information Age , and network technology is developing rapidly . A large number of applications rely on the ability to send the same information from one host to multiple hosts or from multiple hosts to multiple hosts, which can spread over the Internet by up to hu

the deployment directory of the Lib directory can be even two jars, otherwise it will package could not initialize class Com.ibcio.WebSocketMessageServlet error, remember. If you still can't establish the connection, download the latest Tomcat, forget that the version of Tomcatcreatewebsocketinbound is not the request parameter, now this code has this parameter, 7.0.3XX version is with this parameter, remember. Summarize Using WebSocket Development Server push is very convenient, this is a s

"); } ServerHost = Args[0].split (":") [0]; try {port = Integer.parseint (Args[0].split (":") [1]); } catch (NumberFormatException e) {System.err.println ("The port number can only be numeric"); return; }}if (Args.length > 1) {try {num = Integer.parseint (args[1]); } catch (NumberFormatException e) {System.err.println ("Number of initialization numbers only"); reTurn }}if (Args.length > 2) {try {min = Integer.parseint (args[2]); } catch (NumberFormatException e) {System.err.pri

Original: Java Swing chat Room codeSource code: Http://www.zuidaima.com/share/1550463525358592.htmReal Java Chat Room code, easy to implement, easy to read, simple principle!Start the server first. The effect of Servermain is as follows:Start the client again. The effect of Clientmain is as follows:Registration interfa

= "" "+ ssocket.getinetaddress () +" "said" + msg;Sendmsg (); }}catch (Exception ex){}}public void sendmsg (){try{SYSTEM.OUT.PRINTLN (msg);for (int i = Clients.size ()-1; I >= 0; i--){Pw=new PrintWriter (Clients.get (i). Getoutputstream (), true);PW.PRINTLN (msg);Pw.flush ();}}catch (Exception ex){}} }}Client.java: Import java.io.*; Import java.net.*; Import java.util.*; public class client{public int port=8080;Socket Socket=null;public static void Main (string[] args){New Client ();}Public C

Implementation of Java Chat windowWrite a datagram communication program to achieve a simple chat function. Chat content and input text are the historical information for the current chat and the chat text that is currently being

Datagramsocket ();SendSocket.send (P);Empty the contents of the Send boxTxtsend.settext ("");} catch (Unknownhostexception E1) {E1.printstacktrace ();} catch (SocketException E2) {E2.printstacktrace ();} catch (IOException E3) {E3.printstacktrace ();}}else if (E.getsource () ==btnclose) {System.exit (0);}}}650) this.width=650; "Src=" https://s5.51cto.com/wyfs02/M01/9B/D5/wKiom1lnhlLQwT9pAAEc0WHTlZs544.jpg-wh_500x0-wm_ 3-wmp_4-s_4008580126.jpg "title=" udp.jpg "width=", "height=" 391 "border=" 0

Java online chat project swt Visual Window Design login box Registration button click to change the window size -- the registration panel appears to enable the login box when the screen is centered, Click the "register" button in the logon box to change the window size. The registration panel appears. FirstUse swt to visually design the logon window, for example: The window height is 578. The registration

Today just opened a blog, hope it accompany me to grow together.The next time to complete the small project of the Java chat. Today, we have a brief look at the technical content that needs to be used.1. To save the chat data, you need to use the database2. To receive and send messages, you need to use the network3. Maintain network connection, need to use thread

Java UDP uses Socket for network chat (1), udpsocket Author: Qing Dujun Address: http://blog.csdn.net/qingdujun/article/details/39312065 This article demonstrates how to use Socket for network chat to enable the client to send messages to the server. When "886" is sent, the client is closed. 1) the client sends data to the server. If "886" is sent, the client is

described in this article.Note: If the message content has a carriage return, it may fail to send. I do not know the carriage return character how to transcode, anyway, how hair is a failure, easy language forum someone in January 15 wrote a solution was adopted, but I follow the Java way to write or send failed, because I do not understand easy language, so maybe I understand wrong.Say something else a little bit more.At present I have seen 2 kinds

non-blocking : In this way, the user process initiates an IO request can be returned to do other things, but the user process needs to ask from time to time the IO operation is ready, which requires the user process to constantly ask, so as to introduce unnecessary waste of CPU resources. The current Java NIO belongs to synchronous non-blocking IO. asynchronous non-blocking : After the user process initiates an IO request, it returns to do other

Java online chat project version 0.2 creates client forms, and uses swing (User Interface Development Kit) and awt (Abstract Window Toolkit) BorderLayout layout to set the size of JPanel, which is different from GridLayout layout, The Code is as follows: Package com. swift; import java. awt. borderLayout; import java.

Provide code and JAR package download (imitate QQ Group chat way, realize group chat private chat) Hint: The NetUI1.0 is based on this blog "Java Chat Room applet-planning aspects" made from: http://sunspot.blog.51cto.com/372554/128908 The MVC pattern used in some of the n

Java Chat System 1.Socket classSocket(InetAddress address, int port) 创建一个流套接字并将其连接到指定 IP 地址的指定端口号。Socket(String host, int port) 创建一个流套接字并将其连接到指定主机上的指定端口号。Socket(InetAddress address, int port, InetAddress localAddr, int localPort) 创建一个套接字并将其连接到指定远程地址上的指定远程端口。Socket(String host, int port, InetAddress localAddr, int localPort) 创建一个套接字并将其连接到指定远程主机上的指定远程端口。close() 关闭此套接字。connect(SocketAddress endpoint) 将此套接字连接到服

Socket is the most basic communication interface in network programming, commonly used network auxiliary class, such as URL and so on, its bottom or based on socket to achieve. and socket, image, is the connection between the two ends of communication, such as S The concrete effect looks the following picture: This is only in the local trial effect, if you add UI interface, in fact, can be made into a small chat

; StringBuffer sb = new StringbuffeR (); if (httpent! = null) {BufferedReader BR = new BufferedReader (New InputStreamReader (Httpent.getcontent (), "UTF-8")); while (line = Br.readline ())! = null) {sb.append (line);} Br.close ();} return new string[] {sb.tostring (), Code};}Here are the parameters that are taken with the post:String obj = "r={\" ptwebqq\ ": \" "+ ptwebqq +" \ ", \" clientid\ ":" + ClientID + ", \" psessionid\ ": \" \ ", \" status\ ": \" Online\ "} ";where "r=" can not be lost,