仅提取哑剧

/*

 * Copyright 2001-2013 Geert Bevin (gbevin[remove] at uwyn dot com)

 * Licensed under the Apache License, Version 2.0 (the "License")

 */

import javax.net.ssl.*;

import javax.servlet.http.Cookie;

import java.io.*;/**时 代 J a v a 公 众 号 - N o w J a v  a . c o m**/

import java.net.HttpURLConnection;

import java.net.URL;

import java.security.KeyManagementException;

import java.security.NoSuchAlgorithmException;

import java.security.cert.CertificateException;

import java.security.cert.X509Certificate;

import java.util.*;

import java.util.regex.Matcher;

import java.util.regex.Pattern;/** N o w  J a v a  .   c o m 提供 **/

import java.util.zip.GZIPInputStream;


public class Main{

    public static final String CHARSET = "charset=";

    /**

     * Extracts only the mime-type from a Content-Type HTTP header. Thus a header

     * like this: <code>text/html;charset=UTF-8</code> will return: <code>text/html</code>

     *

     * @param contentType the Content-Type header

     * @return the content type header without the charset

     * @since 1.6

     */

    public static String extractMimeTypeFromContentType(String contentType) {

        int charset_index = contentType.indexOf(CHARSET);

        if (charset_index != -1) {

            char indexed_char;

            do {

                indexed_char = contentType.charAt(--charset_index);

            }