我曾经在Java中使用服务器套接字概念来传输像图片和视频这样的文件。但是当我在客户端接收文件时,我会自定义文件名。我能否得到原始文件名?
例如:
如果从服务器端传输的文件名为“abc.txt”,我需要在客户端端看到相同的名称(不需要单独传递名称)。
在服务器端:
public class FileServer {
public static void main (String [] args ) throws Exception {
// create socket
ServerSocket servsock = new ServerSocket(13267);
while (true) {
System.out.println("Waiting...");
Socket sock = servsock.accept();
System.out.println("Accepted connection : " + sock);
OutputStream os = sock.getOutputStream();
new FileServer().send(os);
sock.close();
}
}
public void send(OutputStream os) throws Exception{
// sendfile
File myFile = new File ("C:\\User\\Documents\\abc.png");
byte [] mybytearray = new byte [(int)myFile.length()+1];
FileInputStream fis = new FileInputStream(myFile);
BufferedInputStream bis = new BufferedInputStream(fis);
bis.read(mybytearray,0,mybytearray.length);
System.out.println("Sending...");
os.write(mybytearray,0,mybytearray.length);
os.flush();
}
}
在客户端:
public class FileClient{
public static void main (String [] args ) throws Exception {
long start = System.currentTimeMillis();
// localhost for testing
Socket sock = new Socket("127.0.0.1",13267);
System.out.println("Connecting...");
InputStream is = sock.getInputStream();
// receive file
new FileClient().receiveFile(is);
long end = System.currentTimeMillis();
System.out.println(end-start);
sock.close();
}
public void receiveFile(InputStream is) throws Exception{
int filesize=6022386;
int bytesRead;
int current = 0;
byte [] mybytearray = new byte [filesize];
FileOutputStream fos = new FileOutputStream("def");
BufferedOutputStream bos = new BufferedOutputStream(fos);
bytesRead = is.read(mybytearray,0,mybytearray.length);
current = bytesRead;
do {
bytesRead =
is.read(mybytearray, current, (mybytearray.length-current));
if(bytesRead >= 0) current += bytesRead;
} while(bytesRead > -1);
bos.write(mybytearray, 0 , current);
bos.flush();
bos.close();
}
}