IP获取归属地区

使用 http://whois.pconline.com.cn/ipJson.jsp 这个 URL 来获取 IP 地址的归属城市信息

import java.io.IOException;
import java.net.InetAddress;
import java.net.UnknownHostException;
import java.util.Objects;
import javax.servlet.http.HttpServletRequest;import org.apache.http.client.methods.CloseableHttpResponse;
import org.apache.http.client.methods.HttpGet;
import org.apache.http.impl.client.CloseableHttpClient;
import org.apache.http.impl.client.HttpClients;
import org.apache.http.util.EntityUtils;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;public class IpAddressUtils {private static final Logger log = LoggerFactory.getLogger(IpAddressUtils.class);/*** 获取当前网络ip** @param request* @return*/public static String getIpAddr(HttpServletRequest request) {String ipAddress = request.getHeader("x-forwarded-for");if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {ipAddress = request.getHeader("Proxy-Client-IP");}if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {ipAddress = request.getHeader("WL-Proxy-Client-IP");}if (ipAddress == null || ipAddress.length() == 0 || "unknown".equalsIgnoreCase(ipAddress)) {ipAddress = request.getRemoteAddr();if (ipAddress.equals("127.0.0.1") || ipAddress.equals("0:0:0:0:0:0:0:1")) {//根据网卡取本机配置的IPInetAddress inet = null;try {inet = InetAddress.getLocalHost();} catch (UnknownHostException e) {log.error("Error occurred when getIpAddr method was invoked.ex:", e);}ipAddress = inet.getHostAddress();}}//对于通过多个代理的情况，第一个IP为客户端真实IP,多个IP按照','分割if (ipAddress != null && ipAddress.length() > 15) { //"***.***.***.***".length() = 15if (ipAddress.indexOf(",") > 0) {ipAddress = ipAddress.substring(0, ipAddress.indexOf(","));}}return ipAddress;}/*** IP获取归属地区* @param ipAddress* @return*/public static String getAddress(String ipAddress) {CloseableHttpClient httpClient = null;CloseableHttpResponse response = null;String address = null;try {// 创建 HttpClient 实例httpClient = HttpClients.createDefault();// 构建 API 请求 URLString apiUrl = "http://whois.pconline.com.cn/ipJson.jsp?ip=" + ipAddress;// 创建 HttpGet 请求HttpGet httpGet = new HttpGet(apiUrl);// 发送请求并获取响应response = httpClient.execute(httpGet);// 解析响应if (response.getStatusLine().getStatusCode() == 200) {String jsonResponse = EntityUtils.toString(response.getEntity(), "GBK");address = jsonResponse.substring(jsonResponse.indexOf("addr") + 7, jsonResponse.indexOf("regionNames") - 3);}} catch (IOException e) {e.printStackTrace();} finally {close(httpClient, response);return address;}}public static void close(CloseableHttpClient httpClient, CloseableHttpResponse response) {try {if (Objects.nonNull(response)) {response.close();}if(Objects.nonNull(httpClient)){httpClient.close();}} catch (IOException e) {e.printStackTrace();}}
}