public static String normalize(String url) {
		return normalize(url, false);
	}
@Test
	public void normalizeTest2() {
		String url = "http://www.hutool.cn//aaa/\\bbb?a=1&b=2";
		String normalize = URLUtil.normalize(url);
		assertEquals("http://www.hutool.cn//aaa//bbb?a=1&b=2", normalize);

		url = "www.hutool.cn//aaa/bbb?a=1&b=2";
		normalize = URLUtil.normalize(url);
		assertEquals("http://www.hutool.cn//aaa/bbb?a=1&b=2", normalize);
	}