public static String normalize(String url) {
		return normalize(url, false);
	}
@Test
	public void normalizeTest() {
		// issue#I25MZL，多个/被允许
		String url = "http://www.hutool.cn//aaa/bbb";
		String normalize = URLUtil.normalize(url);
		assertEquals("http://www.hutool.cn//aaa/bbb", normalize);

		url = "www.hutool.cn//aaa/bbb";
		normalize = URLUtil.normalize(url);
		assertEquals("http://www.hutool.cn//aaa/bbb", normalize);
	}