- 1 import javax.servlet.http.HttpServletRequest;
- 2 3
- /**
- 4 * 自定义访问对象工具类
- 5 *
- 6 * 获取对象的IP地址等信息
- 7 * @author X-rapido
- 8 *
- 9 */
- 10 public class CusAccessObjectUtil {
- 11 12
- /**
- 13 * 获取用户真实IP地址,不使用request.getRemoteAddr();的原因是有可能用户使用了代理软件方式避免真实IP地址,
- 14 *
- 16 * 可是,如果通过了多级反向代理的话,X-Forwarded-For的值并不止一个,而是一串IP值,究竟哪个才是真正的用户端的真实IP呢?
- 17 * 答案是取X-Forwarded-For中第一个非unknown的有效IP字符串。
- 18 *
- 19 * 如:X-Forwarded-For:192.168.1.110, 192.168.1.120, 192.168.1.130,
- 20 * 192.168.1.100
- 21 *
- 22 * 用户真实IP为: 192.168.1.110
- 23 *
- 24 * @param request
- 25 * @return
- 26 */
- 27 public static String getIpAddress(HttpServletRequest request) {
- 28 String ip = request.getHeader("x-forwarded-for");
- 29
- if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
- 30 ip = request.getHeader("Proxy-Client-IP");
- 31
- }
- 32
- if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
- 33 ip = request.getHeader("WL-Proxy-Client-IP");
- 34
- }
- 35
- if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
- 36 ip = request.getHeader("HTTP_CLIENT_IP");
- 37
- }
- 38
- if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
- 39 ip = request.getHeader("HTTP_X_FORWARDED_FOR");
- 40
- }
- 41
- if (ip == null || ip.length() == 0 || "unknown".equalsIgnoreCase(ip)) {
- 42 ip = request.getRemoteAddr();
- 43
- }
- 44
- return ip;
- 45
- }
- 46 47
- }
来源: http://www.bubuko.com/infodetail-2071016.html