java解析URL中domain、端口跟协议的两种方法

	@Test
	public void parseDomain() throws IOException {
		for (int i = 0; i < 10000000; i++) {
			String urlAddress = "http://www.roseindia.net/jsf/JSFLoginApplication.shtml";
			URL url = new URL(urlAddress);
			assertEquals("www.roseindia.net", url.getHost());
			assertEquals("/jsf/JSFLoginApplication.shtml", url.getPath());
			assertEquals(-1, url.getPort()); // -1 if not set
			assertEquals("http", url.getProtocol());
		}
	}

	@Test
	public void parseDomainByStringUtils() {
		for (int i = 0; i < 10000000; i++) {
			String urlAddress = "http://www.roseindia.net/jsf/JSFLoginApplication.shtml";
			assertEquals("www.roseindia.net", StringUtils.split(urlAddress, ":/")[1]);
			assertEquals("http", StringUtils.split(urlAddress, ":/")[0]);
		}
	}

代码可读性比较：使用URL类更优雅

性能比较：URL类解析7s， StringUtils解析使用18s

why not URL class?

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