java開發的聊天工具源碼

1. 急求一個關於UDP的java實現多人聊天源代碼

import java.io.InputStream;
import java.io.DataInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.DataOutputStream;
import java.io.BufferedReader;
import java.net.ServerSocket;
import java.net.Socket;
import java.io.IOException;
import java.util.Date;

class Server
{
public Server()
{
try
{
ServerSocket s=new ServerSocket(8888);
Socket ss=s.accept();
OutputStream out=ss.getOutputStream();
DataOutputStream dout=new DataOutputStream(out);
InputStream in=ss.getInputStream();
DataInputStream din=new DataInputStream(in);
System.out.print(din.readUTF()+"!");
dout.writeUTF("你已經連接到伺服器"+"\t"+"你的地址："+ss.getInetAddress()+"\t"
+"你的鏈接埠："+ss.getLocalPort()+"\n");
new ReadMessage(din).start();
new SendMessage(dout).start();
}
catch (IOException e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
new Server();
}
}

//接受客戶端信息
class ReadMessage extends Thread
{
private DataInputStream din;

public ReadMessage(DataInputStream din)
{
this.din=din;
}

public void run()
{
String str;
try
{
while (true)
{
str=din.readUTF();
System.out.println(new Date().toLocaleString()+"客戶端說："+str);
if (str.equals("bye"))
{
System.out.println("客戶端下線！");
break;
}
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

// 發出伺服器信息
class SendMessage extends Thread
{
private DataOutputStream dout;

public SendMessage(DataOutputStream dout)
{
this.dout=dout;
}

public void run()
{
InputStreamReader inr=new InputStreamReader(System.in);
BufferedReader buf=new BufferedReader(inr);
String str;
try
{
while(true)
{
str=buf.readLine();
dout.writeUTF(str);
if (str.equals("bye"))
{
System.out.println("伺服器退出！");
System.exit(1);
}
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

import java.io.InputStream;
import java.io.DataInputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.DataOutputStream;
import java.io.BufferedReader;
import java.net.Socket;
import java.io.IOException;
import java.util.Date;

class Client
{
public Client()
{
try
{
Socket s=new Socket("192.168.1.2",8888);
InputStream in=s.getInputStream();
DataInputStream din=new DataInputStream(in);
OutputStream out=s.getOutputStream();
DataOutputStream dout=new DataOutputStream(out);
dout.writeUTF("伺服器你好！我是客戶端");
System.out.println(din.readUTF());
new Thread(new SenderMessage(dout)).start();
new Thread(new ReaderMessage(din)).start();
}
catch (IOException e)
{
e.printStackTrace();
}
}
public static void main(String[] args)
{
new Client();
}
}

class ReaderMessage implements Runnable
{
private DataInputStream din;

public ReaderMessage(DataInputStream din)
{
this.din=din;
}
public void run()
{
String str;
try
{
while(true)
{
str=din.readUTF();
System.out.println(new Date().toLocaleString()+"伺服器說："+str);
if (str.equals("bye"))
{
System.out.println("伺服器已經關閉，此程序自動退出！");
break;
}
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

class SenderMessage implements Runnable
{
private DataOutputStream dout;

public SenderMessage(DataOutputStream dout)
{
this.dout=dout;
}
public void run()
{
String str;
InputStreamReader inf=new InputStreamReader(System.in);
BufferedReader buf=new BufferedReader(inf);
try
{
while (true)
{
str=buf.readLine();
dout.writeUTF(str);
if (str.equals("bye"))
{
System.out.println("客戶端自己退出！");
System.exit(1);
}
}
}
catch (IOException e)
{
e.printStackTrace();
}
}
}

2. 求聊天軟體源代碼，java語言的

這東西需要伺服器啊（你要去申請？），我上次做了一半才發現就放棄了

3. 速求用JAVA語言寫聊天室的源代碼

【ClientSocketDemo.java 客戶端Java源代碼】

import java.net.*;
import java.io.*;
public class ClientSocketDemo
{
//聲明客戶端Socket對象socket
Socket socket = null;

//聲明客戶器端數據輸入輸出流
DataInputStream in;
DataOutputStream out;

//聲明字元串數組對象response，用於存儲從伺服器接收到的信息
String response[];

//執行過程中，沒有參數時的構造方法，本地伺服器在本地，取默認埠10745
public ClientSocketDemo()
{
try
{
//創建客戶端socket，伺服器地址取本地，埠號為10745
socket = new Socket("localhost",10745);

//創建客戶端數據輸入輸出流，用於對伺服器端發送或接收數據
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());

//獲取客戶端地址及埠號
String ip = String.valueOf(socket.getLocalAddress());
String port = String.valueOf(socket.getLocalPort());

//向伺服器發送數據
out.writeUTF("Hello Server.This connection is from client.");
out.writeUTF(ip);
out.writeUTF(port);

//從伺服器接收數據
response = new String[3];
for (int i = 0; i < response.length; i++)
{
response[i] = in.readUTF();
System.out.println(response[i]);
}
}
catch(UnknownHostException e){e.printStackTrace();}
catch(IOException e){e.printStackTrace();}
}

//執行過程中，有一個參數時的構造方法，參數指定伺服器地址，取默認埠10745
public ClientSocketDemo(String hostname)
{
try
{
//創建客戶端socket，hostname參數指定伺服器地址，埠號為10745
socket = new Socket(hostname,10745);
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());

String ip = String.valueOf(socket.getLocalAddress());
String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");
out.writeUTF(ip);
out.writeUTF(port);

response = new String[3];
for (int i = 0; i < response.length; i++)
{
response[i] = in.readUTF();
System.out.println(response[i]);
}
}
catch(UnknownHostException e){e.printStackTrace();}
catch(IOException e){e.printStackTrace();}
}

//執行過程中，有兩個個參數時的構造方法，第一個參數hostname指定伺服器地址
//第一個參數serverPort指定伺服器埠號
public ClientSocketDemo(String hostname,String serverPort)
{
try
{
socket = new Socket(hostname,Integer.parseInt(serverPort));
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());

String ip = String.valueOf(socket.getLocalAddress());
String port = String.valueOf(socket.getLocalPort());

out.writeUTF("Hello Server.This connection is from client.");
out.writeUTF(ip);
out.writeUTF(port);

response = new String[3];
for (int i = 0; i < response.length; i++)
{
response[i] = in.readUTF();
System.out.println(response[i]);
}
}
catch(UnknownHostException e){e.printStackTrace();}
catch(IOException e){e.printStackTrace();}
}

public static void main(String[] args)
{
String comd[] = args;
if(comd.length == 0)
{
System.out.println("Use localhost(127.0.0.1) and default port");
ClientSocketDemo demo = new ClientSocketDemo();
}
else if(comd.length == 1)
{
System.out.println("Use default port");
ClientSocketDemo demo = new ClientSocketDemo(args[0]);
}
else if(comd.length == 2)
{
System.out.println("Hostname and port are named by user");
ClientSocketDemo demo = new ClientSocketDemo(args[0],args[1]);
}
else System.out.println("ERROR");
}
}
////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////

【ServerSocketDemo.java 伺服器端Java源代碼】

import java.net.*;
import java.io.*;
public class ServerSocketDemo
{
//聲明ServerSocket類對象
ServerSocket serverSocket;

//聲明並初始化伺服器端監聽埠號常量
public static final int PORT = 10745;

//聲明伺服器端數據輸入輸出流
DataInputStream in;
DataOutputStream out;

//聲明InetAddress類對象ip，用於獲取伺服器地址及埠號等信息
InetAddress ip = null;

//聲明字元串數組對象request，用於存儲從客戶端發送來的信息
String request[];

public ServerSocketDemo()
{
request = new String[3]; //初始化字元串數組
try
{
//獲取本地伺服器地址信息
ip = InetAddress.getLocalHost();

//以PORT為服務埠號，創建serverSocket對象以監聽該埠上的連接
serverSocket = new ServerSocket(PORT);

//創建Socket類的對象socket，用於保存連接到伺服器的客戶端socket對象
Socket socket = serverSocket.accept();
System.out.println("This is server:"+String.valueOf(ip)+PORT);

//創建伺服器端數據輸入輸出流，用於對客戶端接收或發送數據
in = new DataInputStream(socket.getInputStream());
out = new DataOutputStream(socket.getOutputStream());

//接收客戶端發送來的數據信息，並顯示
request[0] = in.readUTF();
request[1] = in.readUTF();
request[2] = in.readUTF();
System.out.println("Received messages form client is:");
System.out.println(request[0]);
System.out.println(request[1]);
System.out.println(request[2]);

//向客戶端發送數據
out.writeUTF("Hello client!");
out.writeUTF("Your ip is:"+request[1]);
out.writeUTF("Your port is:"+request[2]);
}
catch(IOException e){e.printStackTrace();}
}
public static void main(String[] args)
{
ServerSocketDemo demo = new ServerSocketDemo();
}
}

4. 設計一個基於JAVA的聊天系統，給出源代碼

一 是不是在同一工程目錄下， 包名和.有沒有錯 二 有沒有換過JDK 如果中途換了JDK 那麼請把你以前的JDK卸掉在裝 有時JDK的class -path 會有沖突sharenyingye考慮採納一下。有空到軟體測試基地,365testing

5. 用JAVA如何實現圖形界面的聊天室寫出源代碼

給你說一下原理，自己操作。圖形界面需要用swing構造。客戶端和伺服器用socket傳遞消息。一個客戶端設置一個線程。
客戶端之間的通信需要伺服器使用Map鍵值數據對來管理，一個鍵值就是一個用戶（用戶的線程編號），對應的數據就是要發送的消息。