public static boolean isURL(String url) {
        return isMatch(URL_REGEX, url);
    }
@Test
    public void testURl() {
        Assert.assertEquals(true, PatternKit.isURL("http://biezhi.me"));
        Assert.assertEquals(true, PatternKit.isURL("https://biezhi.me"));
        Assert.assertEquals(true, PatternKit.isURL("ftp://192.168.1.2"));

        Assert.assertEquals(false, PatternKit.isURL("http:192.168.1.2"));
    }