IP 地址批量查询！！在线等，谢谢，解决就结贴！
手头有5314个IP，大概有美国，台湾，香港的，我想知道他们都是哪里的！http://www.ip138.com/只能一个个的查询，太慢了！
[解决办法]
import java.io.IOException;
import java.util.LinkedHashMap;
import java.util.Map;
import org.apache.commons.httpclient.HttpClient;
import org.apache.commons.httpclient.HttpException;
import org.apache.commons.httpclient.methods.PostMethod;
public class IP {
public static void main(String[] args) throws HttpException, IOException {
Map <String, String> map = new LinkedHashMap <String, String> ();
map.put( "211.100.26.124 ", " ");
map.put( "133.13.233.11 ", " ");
map.put( "209.131.36.158 ", " ");
map.put( "138.175.248.10 ", " ");
map.put( "60.12.227.64 ", " ");
map.put( "72.21.206.80 ", " ");
map.put( "61.152.173.36 ", " ");
long t0 = System.currentTimeMillis();
int i = 0;
int size = map.size();
for (Map.Entry <String, String> entry : map.entrySet()) {
System.out.printf( "[%d/%d] 正在解析 %s ", ++i, size, entry.getKey());
String url = "http://www.ip138.com/ips8.asp ";
HttpClient client = new HttpClient();
PostMethod method = new PostMethod(url);
method.setParameter( "action ", "2 ");
method.setParameter( "ip ", entry.getKey());
client.executeMethod(method);
String response = method.getResponseBodyAsString();
response = new String(response.getBytes( "iso-8859-1 "), "gb2312 ");
response = response.substring(response.indexOf( "本站主数据： "), response.indexOf( " </li> </ul> "));
map.put(entry.getKey(), response);
System.out.println( "，解析完成 ");
method.releaseConnection();
}
System.out.printf( "解析 5314 个 IP 可能要花：%.2f 小时%n ", (System.currentTimeMillis() - t0) * 5314 / (1000.0 * map.size()) / 3600);
// 输出
//for (Map.Entry <String, String> entry : map.entrySet()) {
// System.out.println(entry.getKey() + " --> " + entry.getValue());
//}
System.out.println( "OK ");
}
}
以上代码，需要使用 Commons HttpClient 类库
http://commons.apache.org/downloads/download_httpclient.cgi
以及依赖类库：Commons Logging 和 Commons Codec 类库
http://commons.apache.org/downloads/download_logging.cgi
http://commons.apache.org/downloads/download_codec.cgi
测试了一下解析 5314 个 IP 大约要花两个小时左右的时间。
