Java利用split分割ip

public void test() {
		String address = "11.12.13.14:800";
		System.out.println(address.split("\\.").length);

		String[] num = address.split("\\.");
		for (int i = 0; i < num.length; i++) {
			System.out.println(num[i]);
		}
	}

输出结果
4
11
12
13
14:800