@Test
    public void test_reg_http() {
        String p = "^(http[s]?://[a-zA-Z0-9]+(\\.[a-zA-Z0-9]+)?(\\:[0-9]+)?)";
        Pattern pattern = Pattern.compile(p);
        String url = "http://github.com:8080/abc";
        System.out.println(pattern.matcher(url).find());
        url = "https://github.com:8080/abc";
        System.out.println(pattern.matcher(url).find());
        url = "http://localhost:8080/abc";
        System.out.println(pattern.matcher(url).find());
    }