http协议进阶之Transfer-Encoding和HttpCore实现详解

Transfer-Encoding = "Transfer-Encoding" ":" 1#transfer-coding　

Chunked-Body = *chunk
　　　　　　　　　　last-chunk
　　　　　　　　　　trailer
　　　　　　　　　　CRLF
chunk  = chunk-size [ chunk-extension ] CRLF
　　　　　　　　　 chunk-data CRLF
chunk-size = 1*HEX
last-chunk = 1*("0") [ chunk-extension ] CRLF
chunk-extension= *( ";" chunk-ext-name [ "=" chunk-ext-val ] )
chunk-ext-name = token
chunk-ext-val = token | quoted-string
chunk-data = chunk-size(OCTET)
trailer = *(entity-header CRLF)

public class Main {

 /**
  * @param args
  */
 
 public static final int CR = 13; // <US-ASCII CR, carriage return (13)>
 public static final int LF = 10; // <US-ASCII LF, linefeed (10)>
 
 public static void main(String[] args) throws Exception{
  Socket socket = new Socket("localhost",8080);
  OutputStream out = socket.getOutputStream();
  InputStream in = socket.getInputStream();
  
  //send requestline 
  out.write("POST /web/Hello HTTP/1.1".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  
  //send request header
  out.write("Host:localhost:8080".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  out.write("Accept-Encoding:gzip,deflate".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  out.write("Transfer-Encoding:chunked".getBytes());// 指定transfer-encodeing为chunked方式
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  out.write("Content-Type:application/x-www-form-urlencoded;charset=utf-8".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  
  // CRLF between headers and entity
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  
  /*
   * send chunked data
   */
  //send the first chunked data:hello,world
  //the first chunked data's size : 11
  out.write("B".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  //the first chunked data's content : hello,world
  out.write("hello,world".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  //send the second chunked data:tony
  //the first chunked data's size : 4
  out.write("4".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  //the first chunked data's content : hello,world
  out.write("tony".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  //send the chunked data end flag
  out.write("0".getBytes());
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  //send CRLF
  out.write(CR & 0xFF);
  out.write(LF & 0xFF);
  
  out.flush();
  
  //
  byte[] buffer = new byte[512];
  ByteArrayOutputStream bufferStream = new ByteArrayOutputStream();
  int len = -1;
  while((len = in.read(buffer)) != -1){
   bufferStream.write(buffer,0,len);
  }
  
  System.out.println(new String(bufferStream.toByteArray()));
  
  socket.close();
   
 }