//調用接口

public String userLogin(HttpServletRequest request) throws Exception{String ip = CusAccessObjectUtil.getIp(request); //獲取用戶ip地址 // 此方法可以實現 但是收費 暫時不用 // String s1 = QueryHelper.queryIP(ipAddress); // System.out.println(s1);//根據用戶IP地址請求查詢出用戶IP所屬地區String s1 = GetIPInfo.SendGET("http://sp0.baidu.com/8aQDcjqpAAV3otqbppnN2DJv/api.php?query=", ip, "&co=&resource_id=6006&oe=utf8");Gson gson = new Gson();JsonDTO jsonDTO = gson.fromJson(s1, JsonDTO.class);String location = jsonDTO.getData().get(0).getLocation();}

工具類

import javax.servlet.http.HttpServletRequest;/*** 自定義訪問對象工具類** 獲取對象的IP地址* @author X-rapido**/ public class CusAccessObjectUtil {/*** 獲取用戶真實IP地址，不使用request.getRemoteAddr();的原因是有可能用戶使用了代理軟件方式避免真實IP地址,** 可是，如果通過了多級反向代理的話，X-Forwarded-For的值并不止一個，而是一串IP值，究竟哪個才是真正的用戶端的真實IP呢？* 答案是取X-Forwarded-For中第一個非unknown的有效IP字符串。** 如：X-Forwarded-For：192.168.1.110, 192.168.1.120, 192.168.1.130,* 192.168.1.100** 用戶真實IP為： 192.168.1.110** @param request* @return*/public static String getIp(HttpServletRequest request) {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();}return ip;}}

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