public static URI getHost(URL url) {
		if (null == url) {
			return null;
		}

		try {
			return new URI(url.getProtocol(), url.getHost(), null, null);
		} catch (URISyntaxException e) {
			throw new UtilException(e);
		}
	}
@Test
	public void getHostTest() throws MalformedURLException {
		String url = "https://www.hutool.cn//aaa/\\bbb?a=1&b=2";
		String normalize = URLUtil.normalize(url);
		URI host = URLUtil.getHost(new URL(normalize));
		assertEquals("https://www.hutool.cn", host.toString());
	}