java获取url地址后缀名

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方法一：使用正则表达式

final static Pattern pattern = Pattern.compile("\\S*[?]\\S*");/**     * 获取链接的后缀名     * @return     */    private static String parseSuffix(String url) {        Matcher matcher = pattern.matcher(url);        String[] spUrl = url.toString().split("/");        int len = spUrl.length;        String endUrl = spUrl[len - 1];        if(matcher.find()) {            String[] spEndUrl = endUrl.split("\\?");            return spEndUrl[0].split("\\.")[1];        }        return endUrl.split("\\.")[1];    }

方法二：使用输出流

/** * 获取链接的后缀名 * @return */public static String parseSuffix(String strUrl) {BufferedInputStream bis = null;HttpURLConnection urlConnection = null;                URL url = null;try {url = new URL(strUrl);urlConnection = (HttpURLConnection) url.openConnection();urlConnection.connect();bis = new BufferedInputStream(urlConnection.getInputStream());return HttpURLConnection.guessContentTypeFromStream(bis);} catch (Exception e) {e.printStackTrace();}return null;}

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