直接上例子：

public class URIMain {        public static final String DEFAULT_BROKER_BIND_URL = "tcp://localhost:61616";    public static final String DEFAULT_BROKER_URL = "failover://"+DEFAULT_BROKER_BIND_URL;    /**     * @param args     */    public static void main(String[] args) throws Exception{        String url="http://www.baidu.com?a=b&b=c";                String url1="http://127.0.0.1";        URI uri=new URI(url);                System.out.println(uri.getScheme());        System.out.println(aauri.getHost());        System.out.println(uri.getPath());        System.out.println(uri.getQuery());        System.out.println(uri.getPort());    }}

打印结果：

www.baidu.com

a=b&b=c

-1