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思路:
利用ip和ip区间两端的值调用ipIsValid方法。
工具类:
import org.apache.commons.lang.StringUtils; import org.springframework.web.context.request.RequestContextHolder; import org.springframework.web.context.request.ServletRequestAttributes; import javax.servlet.http.HttpServletRequest; public class IPUtil { /** * 获得当前ip * @return */ public static String getIP(){ ServletRequestAttributes servletRequestAttributes = (ServletRequestAttributes) RequestContextHolder.getRequestAttributes(); if(servletRequestAttributes == null) { return "127.0.0.1"; } HttpServletRequest request = servletRequestAttributes.getRequest(); String ip = request.getHeader("x-forwarded-for"); if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("WL-Proxy-Client-IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_CLIENT_IP"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getHeader("HTTP_X_FORWARDED_FOR"); } if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) { ip = request.getRemoteAddr(); } if ("0:0:0:0:0:0:0:1".equals(ip)) { ip = "127.0.0.1"; } return ip; } /** * 判断IP是否在指定范围 * @param ipStart * @param ipEnd * @param ip * @return */ public static boolean ipIsValid(String ipStart,String ipEnd, String ip) { if (StringUtils.isEmpty(ipStart)) { throw new NullPointerException("起始IP不能为空!"); } if (StringUtils.isEmpty(ipEnd)) { throw new NullPointerException("结束IP不能为空!"); } if (StringUtils.isEmpty(ip)) { throw new NullPointerException("IP不能为空!"); } ipStart = ipStart.trim(); ipEnd = ipEnd.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 (!ipStart.matches(REGX_IP) || !ip.matches(REGX_IP) || !ipEnd.matches(REGX_IP)) { return false; } String[] sips = ipStart.split("\\."); String[] sipe = ipEnd.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; } return ips <= ipt && ipt <= ipe; } }
java实现判断ip是否在指定ip区间的工具类
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赞助本站仅为维持服务器日常运行并非购买程序及源码费用因此不提供任何技术支持,如需商用请购买正版!
本站资源如无特殊说明解压密码一律为www.ymkuzhan.com