Java提取URL某個參數的值

Java提取Url中某個參數的值.

public static String getParam(String url, String name) {
    String params = url.substring(url.indexOf("?") + 1, url.length());
    Map<String, String> split = Splitter.on("&").withKeyValueSeparator("=").split(params);
    return split.get(name);
}