java 聊天室源码

1、【ClientSocketDemo.java 客户端Java源代码】import .*;import java.io.*;public class ClientSocketDemo /声明客户端Socket对象socket Socket socket = null; /声明客户器端数据输入输出流 DataInputStream in; DataOutputStream out; /声明字符串数组对象response，用于存储从服务器接收到的信息 String response; /执行过程中，没有参数时的构造方法，本地服务器在本地，取默认端口10745 public Clien

2、tSocketDemo() try /创建客户端socket，服务器地址取本地，端口号为10745 socket = new Socket(localhost,10745); /创建客户端数据输入输出流，用于对服务器端发送或接收数据 in = new DataInputStream(socket.getInputStream(); out = new DataOutputStream(socket.getOutputStream(); /获取客户端地址及端口号 String ip = String.valueOf(socket.getLocalAddress(); String port =

3、String.valueOf(socket.getLocalPort(); /向服务器发送数据 out.writeUTF(Hello Server.This connection is from client.); out.writeUTF(ip); out.writeUTF(port); /从服务器接收数据 response = new String3; for (int i = 0; i response.length; i+) responsei = in.readUTF(); System.out.println(responsei); catch(UnknownHostExcepti

4、on e)e.printStackTrace(); catch(IOException e)e.printStackTrace(); /执行过程中，有一个参数时的构造方法，参数指定服务器地址，取默认端口10745 public ClientSocketDemo(String hostname) try /创建客户端socket，hostname参数指定服务器地址，端口号为10745 socket = new Socket(hostname,10745); in = new DataInputStream(socket.getInputStream(); out = new DataOutput

5、Stream(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 String3; for (int i = 0; i response.length; i+) r

6、esponsei = in.readUTF(); System.out.println(responsei); catch(UnknownHostException e)e.printStackTrace(); catch(IOException e)e.printStackTrace(); /执行过程中，有两个个参数时的构造方法，第一个参数hostname指定服务器地址 /第一个参数serverPort指定服务器端口号 public ClientSocketDemo(String hostname,String serverPort) try socket = new Socket(host

7、name,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.

8、); out.writeUTF(ip); out.writeUTF(port); response = new String3; for (int i = 0; i response.length; i+) responsei = in.readUTF(); System.out.println(responsei); catch(UnknownHostException e)e.printStackTrace(); catch(IOException e)e.printStackTrace(); public static void main(String args) String comd

9、 = args; if(comd.length = 0) System.out.println(Use localhost() and default port); ClientSocketDemo demo = new ClientSocketDemo(); else if(comd.length = 1) System.out.println(Use default port); ClientSocketDemo demo = new ClientSocketDemo(args0); else if(comd.length = 2) System.out.println(

10、Hostname and port are named by user); ClientSocketDemo demo = new ClientSocketDemo(args0,args1); else System.out.println(ERROR); /【ServerSocketDemo.java 服务器端Java源代码】import .*;import java.io.*;public class ServerSocketDemo /声明ServerSocket类对象 ServerSocket serverSocket; /声明并初始化服务器端监听端口号常量 publi

11、c static final int PORT = 10745; /声明服务器端数据输入输出流 DataInputStream in; DataOutputStream out; /声明InetAddress类对象ip，用于获取服务器地址及端口号等信息 InetAddress ip = null; /声明字符串数组对象request，用于存储从客户端发送来的信息 String request; public ServerSocketDemo() request = new String3; /初始化字符串数组 try /获取本地服务器地址信息 ip = InetAddress.getLocal

12、Host(); /以PORT为服务端口号，创建serverSocket对象以监听该端口上的连接 serverSocket = new ServerSocket(PORT); /创建Socket类的对象socket，用于保存连接到服务器的客户端socket对象 Socket socket = serverSocket.accept(); System.out.println(This is server:+String.valueOf(ip)+PORT); /创建服务器端数据输入输出流，用于对客户端接收或发送数据 in = new DataInputStream(socket.getInputS

13、tream(); out = new DataOutputStream(socket.getOutputStream(); /接收客户端发送来的数据信息，并显示 request0 = in.readUTF(); request1 = in.readUTF(); request2 = in.readUTF(); System.out.println(Received messages form client is:); System.out.println(request0); System.out.println(request1); System.out.println(request2); /向客户端发送数据 out.writeUTF(Hello cli