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));
}
}
