Java Socket文件傳輸

import java.io.BufferedInputStream;
import java.io.BufferedOutputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.net.ServerSocket;
import java.net.Socket;
public class FileServer {
private int port = 1128;
private ServerSocket servSocket;
private Socket socket;
private DataInputStream input;
private DataOutputStream outPut;
private String savePath = "E:\up\";
public void startServer() {
// 已經傳輸的文件大小
  int ycSize = 0;
// 文件總大小
  long sumSize = 0;
// 緩存大小
  int hcSize = 8192;
// 緩存
  byte[] hc = new byte[hcSize];
try {
servSocket = new ServerSocket(port);
socket = servSocket.accept();
input = new DataInputStream(new BufferedInputStream(
     socket.getInputStream()));
} catch (IOException e) {
e.printStackTrace();
}
try {
   // 將文件名字讀取進來
   savePath += input.readUTF();
   // 文件的長度讀取進來（實際只是為了顯示進度）
   sumSize = input.readLong();
} catch (IOException e) {
e.printStackTrace();
}
try {
outPut = new DataOutputStream(new BufferedOutputStream(
     new FileOutputStream(savePath)));
} catch (FileNotFoundException e) {
e.printStackTrace();
}
while (true) {
int read = 0;
if (input != null) {

try {

 read = input.read(hc);

} catch (IOException e) {

 e.printStackTrace();
}

}
ycSize += read;
if (read == -1) {

break;


}
// 下面進度條本為圖形界面的prograssBar做的，這里如果是打文件，可能會重復打印出一些相同的百分比
   System.out.println("文件接收了" + (ycSize * 100 / sumSize) + "%\n");
try {

outPut.write(hc, 0, read);


} catch (IOException e) {

e.printStackTrace();


}
}
if (outPut != null) {
   try {
    outPut.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
   outPut = null;
  }
if (input != null) {
   try {
    input.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
   input = null;
  }
if (socket != null) {
   try {
    socket.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
   socket = null;
  }
if (servSocket != null) {
   try {
    servSocket.close();
   } catch (IOException e) {
    e.printStackTrace();
   }
   servSocket = null;
  }
System.out.println("接收完成，文件存為" + savePath + "\n");
 }
public static void main(String[] args) {
  FileServer fileServer = new FileServer();
  fileServer.startServer();
 }
}
import java.io.BufferedInputStream;
import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.net.Socket;
import java.net.UnknownHostException;
public class FileClient {
 public static void main(String[] args) {
String filePath = "E:\TDDOWNLOAD\DEEPBBS.COM_GhostXPsp3_2011.07CJ.iso";
File file = new File(filePath);
DataInputStream input = null;
  DataOutputStream output = null;
  Socket socket = null;
try {
String ip = "192.168.1.104";
   int port = 1128;
socket = new Socket(ip, port);
input = new DataInputStream(new BufferedInputStream(
     new FileInputStream(filePath)));
output = new DataOutputStream(socket.getOutputStream());
} catch (UnknownHostException e) {
e.printStackTrace();
} catch (IOException e) {
e.printStackTrace();
}
try {
   output.writeUTF(file.getName());
output.flush();
output.writeLong((long) file.length());
output.flush();
} catch (IOException e) {
e.printStackTrace();
}
int bufferSize = 8192;
  byte[] buf = new byte[bufferSize];
while (true) {
int read = 0;
if (input != null) {

try {

 read = input.read(buf);

} catch (IOException e) {

 e.printStackTrace();

}


}
if (read == -1) {

break;

}
try {

output.write(buf, 0, read);

output.flush();


} catch (IOException e) {

e.printStackTrace();


}
}
try {
   input.close();
output.close();
socket.close();
} catch (IOException e) {
e.printStackTrace();
}
 }
}
</pre>