验证IP地址是否在指定的范围内

配置文件中IP_SECTION=192.168.1.1-192.168.1.201

 

// 验证IP地址是否在配置文件中所指定的范围内

public boolean isIpValid(String ip) {

String sysConfigIpSection = sysConfg.getValue("IP_SECTION");

// 从配置文件中读取合法IP地址段信息

String[] ipSection = sysConfigIpSection.split(";");

for (int k = 0; k < ipSection.length; k++) {

ipSection[k] = ipSection[k].trim();

ip = ip.trim();

final String REGX_IP = "((25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)\\.){3}(25[0-5]|2[0-4]\\d|1\\d{2}|[1-9]\\d|\\d)";

final String REGX_IPB = REGX_IP + "\\-" + REGX_IP;

if (!ipSection[k].matches(REGX_IPB) || !ip.matches(REGX_IP))

return false;

int idx = ipSection[k].indexOf('-');

String[] sips = ipSection[k].substring(0, idx).split("\\.");

String[] sipe = ipSection[k].substring(idx + 1).split("\\.");

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

long ips = 0L, ipe = 0L, ipt = 0L;

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

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

ipe = ipe << 8 | Integer.parseInt(sipe[i]);

ipt = ipt << 8 | Integer.parseInt(sipt[i]);

}

if (ips > ipe) {

long t = ips;

ips = ipe;

ipe = t;

}

if (ips <= ipt && ipt <= ipe) {

logger.info("【mid验证】mid为空，判断ip地址:" + ip + "包含于合法地址段"

+ ipSection[k] + "中，验证通过");

return true;

}

 

}

logger.info("【mid验证】mid为空，判断ip地址:" + ip + "非法，无继续访问权限");

return false;

}