import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
public class NetOption {
private static Log logger = LogFactory.getLog("lab.util.*");
private final static String[] ips = new String[] {
"192.168.0.0-192.168.255.255",
"192.168.*.*",
};
public NetOption() {
}
public static void main(String[] args) {
boolean v = NetOption.ValidIP("166.111.59.6");
logger.warn(v);
}
/*
* 验证ip地址是否合法，只验证ipv4
*/
public static boolean IsIP(String StringIP) {
try {
String[] arr = StringIP.split("\\.");
if (arr.length != 4) {
logger.warn("ip地址格式不正确，不是4位ip:" + StringIP);
return false;
}
for (String s : arr) {
int i = Integer.parseInt(s);
if (i < 0 || i > 255) {
logger.warn("ip地址格式不正确，某一位大于255，或小于0:" + StringIP);
return false;
}
}
} catch (Exception e) {
logger.warn("出现异常：");
logger.error(e.toString());
return false;
}
return true;
}
/*
* 比较两个IP地址的大小（IPV4，不能包含通配符） 若strIP1或strIP2不符合ip规则，返回-1 strIP1小于strIP2：则返回0;
* strIP1等于strIP2：则返回1; strIP1大于strIP2：则返回2;
*/
public static int CompareIP(String strIP1, String strIP2) {
if ((!IsIP(strIP1)) || (!IsIP(strIP2))) {
return -1;
}
String[] arr1 = strIP1.split("\\.");
String[] arr2 = strIP2.split("\\.");
for (int i = 0; i < arr1.length; i++) {
int a1 = Integer.parseInt(arr1[i]);
int a2 = Integer.parseInt(arr2[i]);
if (a1 > a2) {
logger.warn(a1 + ">" + a2);
return 2;
} else if (a1 < a2) {
logger.warn(a1 + "<" + a2);
return 0;
}
}
return 1;
}
/*
* 验证SourceIP是否在某个IP地址范围之间(StartIP,EndIP)
*/
public static boolean ValidIPRange(String SourceIP, String StartIP, String EndIP) {
if (NetOption.CompareIP(SourceIP, StartIP) >= 1
&& NetOption.CompareIP(EndIP, SourceIP) >= 1) {
return true;
} else {
return false;
}
}
/*
* 验证SourceIP是否与strIP相匹配，strIP可以包含通配符 SourceIP必须为规则ip地址
*/
public static boolean ValidIPForm(String SourceIP, String strIP) {
if (!IsIP(SourceIP)) {
return false;
}
String[] arr_Source = SourceIP.split("\\.");
String[] arr_str = strIP.split("\\.");
for (int i = 0; i < arr_Source.length; i++) {
if ((!arr_str[i].equals("*")) && (!arr_Source[i].equals(arr_str[i]))) {
return false;
}
}
return true;
}
/*
* 验证SourceIP是否匹配ips SourceIP必须为规则ip地址
*/
public static boolean ValidIP(String SourceIP) {
if (!IsIP(SourceIP)) {
return false;
}
for (String ip : ips) {
String[] arr_ip = ip.split("-");
if (arr_ip.length == 2) {
String StartIP = arr_ip[0].trim();
String EndIP = arr_ip[1].trim();
if (ValidIPRange(SourceIP, StartIP, EndIP)) {
return true;
}
} else {
String strIP = arr_ip[0].trim();
if (ValidIPForm(SourceIP, strIP)) {
return true;
}
}
}
return false;
}
}