java根据ip反查地理位置的实现方法

通过ip查位置的接口有很多，最有名的要数淘宝的免费接口了。但是好像淘宝的公共接口没法用了报

{"msg":"the request over max qps for user ,the accessKey=public","code":4}错误。淘宝需要申请key来调用。不过我发现了一个更好用户的接口，这个就是http://whois.pconline.com.cn/ip.jsp?ip=

下面工具类就是我对这个接口的返回的参数进行的解析实现。需求是拿到省份名字即可。

public class AddressUtils { public static final String IP_URL = "http://whois.pconline.com.cn/ip.jsp?";

public static String getRealAddressByIP(String ip) { String address = "xx";

String rspStr = HttpUtils.sendPost(IP_URL,"ip="+ip); if (rspStr!=null&&rspStr!="") {

if(rspStr.contains("内蒙古")||rspStr.contains("黑龙江")){//获取省 address = rspStr.substring(0,3); }else{

address = rspStr.substring(0,2);

}

}else { System.out.println("获取地理位置异常 {}", ip); }

return address; }

public static void main(String [] args){ String realAddressByIP = getRealAddressByIP("1.180.0.0"); System.out.println(realAddressByIP);

System.out.println("获取结束"); } }

HttpUtils工具类：

public static String sendPost(String url, String param)
{
    PrintWriter out = null;
    BufferedReader in = null;
    StringBuilder result = new StringBuilder();
    try
    {
        String urlNameString = url + "?" + param;
         
        URL realUrl = new URL(urlNameString);
        URLConnection conn = realUrl.openConnection();
        conn.setRequestProperty("accept", "*/*");
        conn.setRequestProperty("connection", "Keep-Alive");
        conn.setRequestProperty("user-agent", "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.1;SV1)");
        conn.setRequestProperty("Accept-Charset", "utf-8");
        conn.setRequestProperty("contentType", "utf-8");
        conn.setDoOutput(true);
        conn.setDoInput(true);
        out = new PrintWriter(conn.getOutputStream());
        out.print(param);
        out.flush();
        in = new BufferedReader(new InputStreamReader(conn.getInputStream(), "GBK"));
        String line;
        while ((line = in.readLine()) != null)
        {
            result.append(line);
        }

System.out.println("recv - {}", result);
    }
    catch (ConnectException e)
    {
        System.out.println("调用HttpUtils.sendPost ConnectException, url=" + url + ",param=" + param, e);
    }
    catch (SocketTimeoutException e)
    {
        System.out.println("调用HttpUtils.sendPost SocketTimeoutException, url=" + url + ",param=" + param, e);
    }
    catch (IOException e)
    {
        System.out.println("调用HttpUtils.sendPost IOException, url=" + url + ",param=" + param, e);
    }
    catch (Exception e)
    {
        System.out.println("调用HttpsUtil.sendPost Exception, url=" + url + ",param=" + param, e);
    }
    finally
    {
        try
        {
            if (out != null)
            {
                out.close();
            }
            if (in != null)
            {
                in.close();
            }
        }
        catch (IOException ex)
        {
           System.out.println("调用in.close Exception, url=" + url + ",param=" + param, ex);
        }
    }
    return result.toString();
}