package com.mxf.date0725;

public class IpTransform {

	public static void main(String[] args) {
		String ipAddress = "183.62.169.146";
		long ip = ipToNumber(ipAddress);
		System.out.println("ip = " + ip);
	}

	// <summary>
	/// 将127.0.0.1形式的IP地址转换成十进制整数
	/// </summary>
	/// <param name="strIp"></param>
	/// <returns></returns>
	private static Long ipToNumber(String ip) {
		Long ips = 0L;
		String[] numbers = ip.split("\\.");
		// 等价上面
		for (int i = 0; i < 4; ++i) {
			ips = ips << 8 | Integer.parseInt(numbers[i]);
		}
		return ips;
	}

}