简单级聊天室程序

cn_arthurs

ningzong

shdavidzhang

robotmen

zhang_sun

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java 代码

//服务器端代码
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
public class Server{
public static void main(String[] args) throws IOException {
int PORT = 8999;
BufferedReader in = null;PrintWriter out = null;
try{
// 以端口PORT创建一个服务器Socket
ServerSocket s = new ServerSocket(PORT);
//监听并接受与此socket的连接,该方法会阻塞直到有一个连接产生
Socket socket = s.accept();
System.out.println("服务器启动成功,等待客户端请求");
//创建新的数据输入流,以便从指定的输入流中读取数据
try{
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
//创建新的数据输出流,以便从指定的输出流中写出数据
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())),true);
System.out.println("Client ip : "+s.getInetAddress());
out.println("welcome to my chatRoom!");
while (true) {
String str = in.readLine();
if (str.equals("exit") || str==null) {
break;
}
if (str != null && str.length() > 0) {
System.out.println("客户端:" + str);
}
}
System.out.println("Client ip : "+s.getInetAddress()+" want to leave");
}
finally{
in.close();
out.close();
socket.close();
s.close();
}
}catch(Exception e){
e.printStackTrace();
}
}
}

java 代码

//客户端代码
import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.DataInputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.Socket;
import java.net.UnknownHostException;
/**
* Socket网络编程客户端程序
* @author arthurs
*/
public class Client {
public static void main(String[] args) throws IOException {
//创建一个socket连接,参数包括服务器端IP地址,端口号;
Socket socket = new Socket("localhost",8999);
BufferedReader in = null;PrintWriter out = null;
BufferedReader sysin = null;
try {
// if(outCh.toString().equals("exit"))
// break;
// 创建一个数据输入流,从指定的输入流中读取数据
in = new BufferedReader(new InputStreamReader(socket.getInputStream()));
// 创建一个数据输出流,从指定的输出流中写出数据
out = new PrintWriter(new BufferedWriter(new OutputStreamWriter(socket.getOutputStream())), true);
String str = in.readLine();
System.out.println("服务器端:" + str);
sysin = new BufferedReader(new InputStreamReader(new DataInputStream(System.in)));
String strOut = sysin.readLine();
while(!strOut.equals("exit")){
out.println(strOut);
strOut = sysin.readLine();
}
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
} finally {
in.close();
out.close();
sysin.close();
socket.close();
}
}
}