上传 文本文件 ，jpg

 

/*
上传文本文件。

原理：
其实就是将本地的文件数据通过socket流，发送到了服务端。服务端对这些数据进行文件存储

*/

import java.io.*;
import java.net.*;
class  UploadClient
{
 public static void main(String[] args)throws Exception
 {
  Socket s =new Socket("192.168.1.253",9005);

  //读取要上传的本地文本文件，为了提高效率，使用了缓冲区。
  BufferedReader bufr = new BufferedReader(new FileReader("UdpDemo.java"));

  PrintWriter out = new PrintWriter(s.getOutputStream(),true);

  String line = null;

  while((line=bufr.readLine())!=null)
  {
   out.println(line.toUpperCase());
  }

  //out.println("");
   
  s.shutdownOutput();

  //读取服务端发挥的上传成功信息。
  BufferedReader bufIn = new BufferedReader(new InputStreamReader(s.getInputStream()));
  String info = bufIn.readLine();
  System.out.println(info);

  bufr.close();

  s.close();

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

  ServerSocket ss = new ServerSocket(9005);

  Socket s = ss.accept();
  String ip = s.getInetAddress().getHostAddress();
  System.out.println(ip+"....connected");

  BufferedReader bufIn = new BufferedReader(new InputStreamReader(s.getInputStream()));

  PrintWriter pw = new PrintWriter(new FileWriter("server.txt"),true);

  String line = null;

  while((line=bufIn.readLine())!=null)
  {
   //if("over".equals(line))
    //break;
   pw.println(line);
  }

  PrintWriter out =new PrintWriter(s.getOutputStream(),true);
  out.println("上传成功---");

  pw.close();

  s.close();

  ss.close();
 }
}

 

 

import java.net.*;
import java.io.*;

/*
服务端将获取到的客户端封装到单独的线程中。

*/

class  JpgClient2
{
 public static void main(String[] args) throws Exception
 {
  
  if(args.length==0)
  {
   System.out.println("指定一个jpg文件先！");
   return ;
  }
  
  File file = new File(args[0]);

  if(!(file.exists() && file.isFile() && file.getName().endsWith(".jpg")))
  {
   System.out.println("选择文件错误，请重新选择一个“ok”的文件。");
   return ;
  }

  Socket s = new Socket("192.168.1.253",9006);

  FileInputStream fis = new FileInputStream(file);

  OutputStream out = s.getOutputStream();

  byte[] buf = new byte[1024];

  int len = 0;

  while((len=fis.read(buf))!=-1)
  {
   out.write(buf,0,len);
  }

  s.shutdownOutput();

  InputStream in = s.getInputStream();
  byte[] bufIn = new byte[1024];
  int num = in.read(bufIn);

  String str = new String(bufIn,0,num);

  System.out.println(str);

  fis.close();
  s.close();
 }
}

 

class JpgThread implements Runnable
{
 private Socket s;
 JpgThread(Socket s)
 {
  this.s = s;
 }
 public void run()
 {

  int count = 1;

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

  try
  {

   InputStream in = s.getInputStream();

   File dir = new File("c:\\pic");
   File file = new File(dir,ip+"("+count+").jpg");

   while(file.exists())
    file = new File(dir,ip+"("+(count++)+").jpg");
  
   FileOutputStream fos = new FileOutputStream(file);

   byte[] buf = new byte[1024];

   int len = 0;
   while((len=in.read(buf))!=-1)
   {
    fos.write(buf,0,len);
   }

   OutputStream out = s.getOutputStream();

   out.write("上传文件成功".getBytes());

   fos.close();
   s.close();
  }
  catch (Exception e)
  {
   System.out.println(e.toString());
  }
 }
}
class  JpgServer2
{
 public static void main(String[] args)throws Exception
 {
  ServerSocket ss = new ServerSocket(9006);

  while(true)
  {
   Socket s = ss.accept();
   String ip = s.getInetAddress().getHostAddress();
   System.out.println(ip+"....connected");

   new Thread(new JpgThread(s)).start();
  }

  

 }
}