黑马程序员 java IO TCP Socket ServerSocket Thread Runnable 模拟qq聊天

最新推荐文章于 2020-11-14 05:18:52 发布

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最新推荐文章于 2020-11-14 05:18:52 发布

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package itcast.video.network;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.OutputStream;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;

public class I_03_TCP_demo {

/**
* @param args
* java TCP 模拟qq聊天
* @throws IOException
*/
public static void main(String[] args) throws IOException {

ServerSocket ss = new ServerSocket(10005);
Socket s = new Socket("127.0.0.1", 10005);
new Thread(new ServerTCP(ss)).start();
new Thread(new ClientTCP(s)).start();
}

}

class ClientTCP implements Runnable {
private Socket s;

public ClientTCP(Socket s) {
this.s = s;
}

@Override
public void run() {
// BufferedWriter bwOut = null;
PrintWriter bwOut = null;
BufferedReader brIn = null;
BufferedReader br = null;
String line = null;
int len = 0;
try {
// bwOut = new BufferedWriter(new OutputStreamWriter(
// s.getOutputStream()));

bwOut = new PrintWriter(s.getOutputStream(),true);
br = new BufferedReader(new InputStreamReader(System.in));
brIn = new BufferedReader(new InputStreamReader(s.getInputStream()));
while ((line = br.readLine()) != null) {
// bwOut.write(line);
// bwOut.newLine();
// bwOut.flush();
bwOut.println(line);
line = brIn.readLine();
System.out.println("server: " + line);
if (line.equals("886")) {
break;
}

}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (bwOut != null)
bwOut.close();
if (brIn != null)
brIn.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
s.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}
}

class ServerTCP implements Runnable {
private ServerSocket ss;

public ServerTCP(ServerSocket ss) {
this.ss = ss;
}

@Override
public void run() {
Socket s = null;
BufferedReader br = null;
// BufferedWriter bw = null;
PrintWriter bw = null;
String line = null;
byte[] buf = new byte[1024];
int len = 0;
try {
s = ss.accept();
br = new BufferedReader(new InputStreamReader(s.getInputStream()));
// bw = new BufferedWriter(new OutputStreamWriter(s.getOutputStream()));
bw = new PrintWriter(s.getOutputStream(),true);
while ((line = br.readLine()) != null) {
// bw.write(line.toUpperCase());
// bw.newLine();
// bw.flush();
bw.println(line.toLowerCase());
// System.out.println(s.getInetAddress().getHostAddress() +
// " : "
// + data);
if (line.equals("886")) {
break;
}
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
if (br != null)
br.close();
if (bw != null)
bw.close();
} catch (IOException e) {
e.printStackTrace();
} finally {
try {
s.close();
ss.close();
} catch (IOException e) {
e.printStackTrace();
}
}
}
}

}