POST 방법으로 BASIC 인증해서 웹문서 가져오기

import java.util.Hashtable;
import java.util.Date;
import java.text.SimpleDateFormat;
import java.net.*;
import java.io.*;

public class HttpFetcher {

 public static String fetch(String urlString, String id, String password, Hashtable queryTable) {
  String queryString = encodeQuery(queryTable);
  return fetch(urlString, id, password, queryString);
 }

 public static String fetch(String urlString, String id, String password, String parameter) {

  StringBuffer fetchedHtmlBuffer = new StringBuffer();

  URLConnection httpConnection = null;
  BufferedReader in = null;
  PrintWriter out = null;
  try {

   URL url = new URL(urlString);

   httpConnection = url.openConnection();
   httpConnection.setDoOutput(true);
   httpConnection.setUseCaches(false);

   String authInfo = id+":"+password;
   String encoding = new sun.misc.BASE64Encoder().encode(authInfo.getBytes());
   httpConnection.setRequestProperty ("Authorization", "Basic " + encoding);

   out = new PrintWriter (httpConnection.getOutputStream());

   out.print(parameter);
   out.flush();

   InputStream is = httpConnection.getInputStream();
   in = new BufferedReader(new InputStreamReader(is),8*1024);
      
   String line = null;
   while( (line=in.readLine())!= null ) {
    fetchedHtmlBuffer.append(line);
    fetchedHtmlBuffer.append("\n");
   }
  } catch(Exception e) {
   System.out.println(e.toString());
  } finally {
   if ( out != null ) try {out.close();}catch(Exception e){}
   if ( in != null ) try {in.close();}catch(Exception e){}
  }

  return fetchedHtmlBuffer.toString();

 }

 public static String encodeQuery(java.util.Hashtable hash){
  if ( hash == null ) throw new IllegalArgumentException("argument is null");
  java.util.Enumeration enum = hash.keys();
  StringBuffer buf = new StringBuffer();
  boolean isFirst = true;
  while(enum.hasMoreElements()){
   if (isFirst) isFirst = false;
   else buf.append('&');
   String key = (String)enum.nextElement();
   String value = (String)hash.get(key);
   buf.append(java.net.URLEncoder.encode(key));
   buf.append('=');
   buf.append(java.net.URLEncoder.encode(value));
  }
  return buf.toString();
 }

 public static void main(String[] args) {

  String fetchedHtml = "";

  String urlString = "http://localhost/path/index.html";
  String loginId = "id";
  String loginPassword = "password";
  String queryString = "name=myname&age=30";

  fetchedHtml = fetch(urlString, loginId, loginPassword, queryString);
  System.out.println(fetchedHtml);

  Hashtable queryTable = new Hashtable();
  queryTable.put("name","myname");
  queryTable.put("age","30");
  queryString = encodeQuery(queryTable);

  fetchedHtml = fetch(urlString, loginId, loginPassword, queryString);
  System.out.println(fetchedHtml);
 

 }