2
我通过套接字将文件从客户端传输到基本服务器。当我传输小文件(1kb)时,它在String fileName = clientData.readUTF();
上失败,但使用大文件(31mb)时效果很好。为什么.readUTF()通过套接字失败,文件大小很小?
在我看来,它没有足够的时间。有谁能澄清这个请吗? TIA
SERVER
public void receiveFile()
{
System.out.println("in receive file");
try {
int bytesRead;
DataInputStream clientData = new DataInputStream(clientSocket.getInputStream());
String fileName = clientData.readUTF();
OutputStream output = new FileOutputStream(("received_from_client_" + fileName));
long size = clientData.readLong();
byte[] buffer = new byte[1024];
while (size > 0 && (bytesRead = clientData.read(buffer, 0, (int) Math.min(buffer.length, size))) != -1) {
output.write(buffer, 0, bytesRead);
size -= bytesRead;
}
output.close();
clientData.close();
System.out.println("File " + fileName + " received from Client " + clientID);
} catch (IOException ex) {
System.err.println("ERROR Connection closed Client " + clientID);
}
}
痕量
java.io.EOFException
at java.io.DataInputStream.readUnsignedShort(DataInputStream.java:340)
at java.io.DataInputStream.readUTF(DataInputStream.java:589)
at java.io.DataInputStream.readUTF(DataInputStream.java:564)
at example3.CLIENTConnection.receiveFile(CLIENTConnection.java:75)
at example3.CLIENTConnection.run(CLIENTConnection.java:50)
at java.lang.Thread.run(Thread.java:722)
这行不代码失败上(打印'ex'的堆栈跟踪。) – McDowell
@McDowell加质疑。 TIA。 –
嗯,这是所有[文件](http://docs.oracle.com/javase/7/docs/api/java/io/DataInputStream.html#readUnsignedShort%28%29)不得不说的那个方法投掷一个'IOException':_The流已经关闭,并且包含的输入流不支持关闭后阅读,或其他I/O错误occurs._我想看看服务器代码,看看当它被调用'writeUTF'会发生什么。 – McDowell