我目前正在使用Java套接字。我已经创建了一个服务器端代码和客户端代码来通过套接字传输文件。我已经在同一个系统中成功地将文件从客户端传输到服务器,但如果我在不同的平台上尝试使用不同的系统,则它不起作用。服务器端和客户端代码如下所示。
服务器端代码
public class FileTransferTestServer extends Thread{
private final Socket socket;
public FileTransferTestServer(Socket socket) {
// TODO Auto-generated constructor stub
this.socket = socket;
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
ServerSocket serverSocket = new ServerSocket(5000);
Socket socket = serverSocket.accept();
System.out.println("Connection Established with "+socket.getInetAddress().getHostAddress());
new FileTransferTestServer(socket).start();
serverSocket.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public void run(){
try {
InputStream is = socket.getInputStream();
BufferedReader br = new BufferedReader(new InputStreamReader(is));
String buffer = null;
String fileName = null;
if((buffer = br.readLine()) != null){
fileName = buffer;
}
FileOutputStream fos = new FileOutputStream(fileName);
int res = IOUtils.copy(is, fos);
System.out.println("res : "+res);
is.close();
fos.flush();fos.close();
br.close();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
客户端代码
public class FileTransferClient {
public FileTransferClient() {
// TODO Auto-generated constructor stub
}
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
try {
Socket socket = new Socket("172.16.4.23",5000);
File file = new File("/Users/Guest/Desktop/DQM.txt");
OutputStream outputStream = socket.getOutputStream();
PrintWriter out = new PrintWriter(outputStream);
out.println("file-transfer");
out.flush();
out.println(""+file.getName());
out.flush();
FileInputStream fis = new FileInputStream(file);
int res = IOUtils.copy(fis, outputStream);
out.flush();
outputStream.flush();
outputStream.close();
fis.close();
System.out.println("res : "+res);
socket.close();
} catch (UnknownHostException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
如何使这个程序在系统之间传输文件
我试过使用Windows(服务器)&Mac OS X(客户端)和Windows(服务器)&LinuxMint(客户端)
注:1.我想先发送文件名,然后发送文件内容。2.文件内容可以是任何形式(文本或二进制文件)
除非你真的知道自己在做什么,否则你不能在同一个流中混合测试和二进制。在这种情况下,BufferedReader假设您从现在起只使用此读取器,并且它可以读取尽可能多的可用数据。这意味着它可以读取您想要用于该文件的数据。
我建议您使用DataInput/OutputStream,并且仅此而已。您可以对文本使用writeUtf/readUTF。
写入
Socket socket = new Socket("172.16.4.23",5000);
String pathname = "/Users/Guest/Desktop/DQM.txt";
DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
outputStream.writeUTF(pathname);
FileInputStream fis = new FileInputStream(pathname);
int res = IOUtils.copy(fis, dos);
fis.close();
dos.close();
socket.close();
读取
DataInputStream dis = new DataInputStream(socket.getInputStream());
String fileName = dis.readUTF();
FileOutputStream fos = new FileOutputStream(fileName);
int res = IOUtils.copy(dis, fos);
fos.close();
socket.close();