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贴代码

IpUtil.java

package com.datongsoft.wg.common.util;

import java.net.InetAddress;

import java.net.UnknownHostException;

public class IpUtil {

/*验证IP是否属于某个IP段

*

* ipSection IP段(以‘-‘分隔)

* ip 所验证的IP号码

*

*/

public static boolean ipExistsInRange(String ip,String ipSection) {

ipSection = ipSection.trim();

ip = ip.trim();

int idx = ipSection.indexOf(‘-‘);

String beginIP = ipSection.substring(0, idx);

String endIP = ipSection.substring(idx + 1);

return getIp2long(beginIP)<=getIp2long(ip) &&getIp2long(ip)<=getIp2long(endIP);

}

public static long getIp2long(String ip) {

ip = ip.trim();

String[] ips = ip.split("\\.");

long ip2long = 0L;

for (int i = 0; i < 4; ++i) {

ip2long = ip2long << 8 | Integer.parseInt(ips[i]);

}

return ip2long;

}

public static long getIp2long2(String ip) {

ip = ip.trim();

String[] ips = ip.split("\\.");

long ip1 = Integer.parseInt(ips[0]);

long ip2 = Integer.parseInt(ips[1]);

long ip3 = Integer.parseInt(ips[2]);

long ip4 = Integer.parseInt(ips[3]);

long ip2long =1L* ip1 * 256 * 256 * 256 + ip2 * 256 * 256 + ip3 * 256 + ip4;

return ip2long;

}

public static int getExists(String ip){

System.out.println("访问Ip："+ip);

InetAddress addr;

int ext=0;

boolean exists = false;

try {

addr = InetAddress.getLocalHost();

// String ip=addr.getHostAddress().toString(); //获取本机ip

//String ipSection="10.163.64.00-10.163.71.255";

String ipSection="192.168.0.1-192.168.0.240";

exists =ipExistsInRange(ip,ipSection);

if(exists){

ext=1;

}

} catch (UnknownHostException e) {

e.printStackTrace();

} catch (Exception e) {

e.printStackTrace();

}

return ext;

}

public static void main(String[] args) throws Exception{

//10.10.10.116 是否属于固定格式的IP段10.10.1.00-10.10.255.255

/*InetAddress addr = InetAddress.getLocalHost();

String ip=addr.getHostAddress().toString(); //获取本机ip

String hostName=addr.getHostName().toString(); //获取本机计算机名称

//String ip="10.163.10.116";

String ipSection="10.163.64.00-10.163.71.255";

boolean exists=ipExistsInRange(ip,ipSection);

System.out.println(exists);*/

//System.out.println( getExists());

//System.out.println(getIp2long(ip));

//System.out.println(getIp2long2(ip));

}

}

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