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package cn.wisenergy.common.utils.ip;
import cn.wisenergy.common.utils.HttpUtil;
import com.alibaba.fastjson.JSONObject;
import org.apache.commons.lang3.StringUtils;
import javax.servlet.http.HttpServletRequest;
import java.io.UnsupportedEncodingException;
import java.util.HashMap;
import java.util.Map;
/**
* IP工具类
*
* @author WYY
* @date 2018/06/06
*/
public class IpUtils {
/**
* IP信息查询接口地址
*/
public static final String GET_IPINFO_URL = "http://whois.pconline.com.cn/ipJson.jsp";
/**
* 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,
* 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？
* 答案是取X-Forwarded-For中第一个非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
* 用户真实IP为： 192.168.1.110
*
* @param request
* @return 真是IP
*/
public static String getIpAddr(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();
}
if (StringUtils.isNotEmpty(ip) && ip.indexOf(",") > -1) {
String[] arr = ip.split(",");
if (arr != null && arr.length > 0) {
for (String s : arr) {
if (StringUtils.isNotEmpty(s) && !StringUtils.equalsIgnoreCase(s, "unknown")) {
ip = s;
break;
}
}
}
}
return ip;
}
/**
* 获取IP位置信息
*
* @param ipAddress ip地址
* @param encodingString 服务器端请求编码。如GBK,UTF-8等
* @return IpAddress对象
* @throws UnsupportedEncodingException
*/
public static IpAddress getAddresses(String ipAddress, String encodingString) throws UnsupportedEncodingException {
// 初始化请求参数
Map<String, Object> map = new HashMap<>();
map.put("json", true);
map.put("ip", ipAddress.trim());
// 检查请求编码。如果为空，默认为utf-8
if (StringUtils.isBlank(encodingString)) {
encodingString = "utf-8";
}
// 发送请求
String returnStr = HttpUtil.get(IpUtils.GET_IPINFO_URL, map, encodingString);
if (returnStr != null) {
JSONObject jsonObject = JSONObject.parseObject(returnStr);
IpAddress address = new IpAddress();
address.setIp(ipAddress);
address.setProvince(jsonObject.get("pro").toString());
address.setCity(jsonObject.get("city").toString());
address.setRegion(jsonObject.get("region").toString());
address.setAddr(jsonObject.get("addr").toString());
return address;
}
return null;
}
}