草稿

private void sendAsChunked(OutputStream outputStream, PrintWriter pw) throws IOException {  
            pw.print("Transfer-Encoding: chunked\r\n");  
            pw.print("\r\n");  
            pw.flush();  
            int BUFFER_SIZE = 16 * 1024;  
            byte[] CRLF = "\r\n".getBytes();  
            byte[] buff = new byte[BUFFER_SIZE];  
            int read;  
            while ((read = data.read(buff)) > 0) {  
                outputStream.write(String.format("%x\r\n", read).getBytes());  
                outputStream.write(buff, 0, read);  
                outputStream.write(CRLF);  
            }  
            outputStream.write(String.format("0\r\n\r\n").getBytes());  
        }  

private void sendAsFixedLength(OutputStream outputStream, int pending) throws IOException {  
            if (requestMethod != Method.HEAD && data != null) {  
                int BUFFER_SIZE = 16 * 1024;  
                byte[] buff = new byte[BUFFER_SIZE];  
                while (pending > 0) {  
                    int read = data.read(buff, 0, ((pending > BUFFER_SIZE) ? BUFFER_SIZE : pending));  
                    if (read <= 0) {  
                        break;  
                    }  
                    outputStream.write(buff, 0, read);  
                    pending -= read;  
                }  
            }  
        }