IP地址转换成Long型数字

import org.junit.Test;

public class TransIpToLongNumber {
    public Long ipToNumber(String ip) {    
        Long ipLong = 0L; 
        String[] ipNumbers = ip.split("\\.");
        for (String ipNumber : ipNumbers) {
            ipLong = ipLong << 8 | Integer.parseInt(ipNumber);
        }
        return ipLong;   
    } 
    
    @Test
    public void trans(){
        System.out.println(ipToNumber("192.68.0.1"));
        System.out.println(ipToNumber("192.189.2.1"));
        System.out.println(ipToNumber("10.189.2.1"));
        System.out.println(ipToNumber("10.10.2.1"));
    }
    

}

参考

转载于:https://www.cnblogs.com/cashew/p/11061959.html