套接字本身就是字节流,所以你不应该有问题。我建议你有一个看起来像这样的协议。
只要总长度小于 64 KB,这将允许您发送任意属性。随后是可以是任何 63 位长度的文件,并且一次发送一个块。(使用 8 KB 的缓冲区)
如果您愿意,可以使用 Socket 发送更多文件。
DataOutputStream dos = new DataOutputStream(socket.getOutputStream());
Properties fileProperties = new Properties();
File file = new File(filename);
// send the properties
StringWriter writer = new StringWriter();
fileProperties.store(writer, "");
writer.close();
dos.writeUTF(writer.toString());
// send the length of the file
dos.writeLong(file.length());
// send the file.
byte[] bytes = new byte[8*1024];
FileInputStream fis = new FileInputStream(file);
int len;
while((len = fis.read(bytes))>0) {
dos.write(bytes, 0, len);
}
fis.close();
dos.flush();
读书
DataInputStream dis = new DataInputStream(socket.getInputStream());
String propertiesText = dis.readUTF();
Properties properties = new Properties();
properties.load(new StringReader(propertiesText));
long lengthRemaining = dis.readLong();
FileOutputStream fos = new FileOutputStream(outFilename);
int len;
while(lengthRemaining > 0
&& (len = dis.read(bytes,0, (int) Math.min(bytes.length, lengthRemaining))) > 0) {
fos.write(bytes, 0, len);
lengthRemaining -= len;
}
fos.close();