Tcp客服端并发访问服务器

/*线程*/
 import java.net.*;

import java.io.*;

public class PicThread implements Runnable {

private Socket s;

public ClientThread(Socket ss) {

this.s = ss;

}

@Override

public void run() {

int count=1;

try{

String ip = s.getInetAddress().getHostAddress();

File file = new File("D:\\"+ip+"("+count+")"+".jpg");

while(file.exists()){

 

file = new File("D:\\"+ip+"("+(count++) +")"+".jpg");

}

InputStream in = s.getInputStream();

BufferedOutputStream buffin= 

new BufferedOutputStream(new FileOutputStream(file));

byte[] buf = new byte[1024];

int len = 0;

while((len = in.read(buf))!=-1){

buffin.write(buf, 0, len);

buffin.flush();

}

OutputStream out =s.getOutputStream();

byte[] info = "上传成功".getBytes();

out.write(info);

}catch(Exception e){

e.printStackTrace();

}

try {

s.close();

} catch (IOException e) {

// TODO Auto-generated catch block

e.printStackTrace();

}

}

}

/*客服端*/

import java.io.*;

import java.net.*;

public class PicClient {

/**

* @param args

* @throws Exception

*/

public static void main(String[] args) throws Exception {

//创建服务端点

Socket s = new Socket("127.0.0.1",10000);

// 读文件

BufferedInputStream buffin = new BufferedInputStream( new FileInputStream("D:\\3.jpg"));

OutputStream out = s.getOutputStream();

byte[] buf= new byte[1024];

int len =0;

// 往服务端写文件

while((len = buffin.read(buf))!=-1){

out.write(buf,0,len);

out.flush();

}

s.shutdownOutput();//告诉服务端 文件写完啦

// 接收服务端的反馈信息

InputStream in = s.getInputStream();

byte [] bfin = new byte[1024];

int lenIn = in.read(bfin);

System.out.println(new String(bfin,0,lenIn));

buffin.close();

}

}

/*服务器*/ 

import java.net.*;

import java.io.*;

public class PicServer {

/**

* @param args

* @throws Exception 

*/

public static void main(String[] args) throws Exception {

ServerSocket ss = new ServerSocket(10000);

while(true){

Socket socket=ss.accept();

new Thread(new ClientThread(socket)).start();

}