java 通过request获取ip 在通过ip获取地址

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import java.util.Map;import javax.servlet.http.HttpServletRequest;import org.apache.commons.httpclient.HttpClient;import org.apache.commons.httpclient.methods.GetMethod;import org.apache.commons.httpclient.params.HttpMethodParams;import org.apache.log4j.Logger;/** * @Description: ip工具类 */public class IpUtil {    private static final Logger LOGGER = Logger.getLogger(IpUtil.class);    private static final String UNKNOWN = "unknown";    private IpUtil() {    }    /**     * 获取客户端ip     *      * @param request     * @return     */    public static String getIpAddr(HttpServletRequest request) {        String ip = request.getHeader("X-Real-IP");        if (ip == null || ip.length() == 0 || UNKNOWN.equalsIgnoreCase(ip)) {            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.getRemoteAddr();        }        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");        }        // 如果是多级代理，那么取第一个ip为需要的ip        if (ip != null && ip.indexOf(",") != -1) {            ip = ip.substring(ip.lastIndexOf(",") + 1, ip.length()).trim();        }        return ip;    }    /**     * 根据获取地区信息     *      * @return String[] [0]国家 [1]省 [2]市 [3]县 [4]运营商     */    public static String[] getClientArea(HttpServletRequest request) {        String ip = getIpAddr(request);        //ip = "117.88.148.251";        request.getSession().setAttribute("ipAddress", ip);        String url = "http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=" + (ip == null ? "" : ip);        String returnString = "";        String[] areas = { "", "", "", "", "" };        GetMethod postMethod = new GetMethod(url);        HttpClient client = new HttpClient();        // 设置编码字符        client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET, "UTF-8");        try {            client.executeMethod(postMethod);            returnString = StringUtil.fromUnicode(postMethod.getResponseBodyAsString());            Map<String, Object> result = JsonUtil.getMapFromJson(returnString);            if (result.get("ret").toString().equals("1")) {                // 国家                areas[0] = result.get("country").toString();                // 省                areas[1] = result.get("province").toString();                // 市                areas[2] = result.get("city").toString();                // 县                areas[3] = result.get("district").toString();                // 运营商                areas[4] = result.get("isp").toString();            }        } catch (Exception e) {            LOGGER.error("根据ip为：" + ip + "获取地区信息失败！", e);        }        return areas;    }}
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