根据IP获取 地址信息
package com.lee;import java.io.BufferedReader;import java.io.DataOutputStream;import java.io.IOException;import java.io.InputStreamReader;import java.io.UnsupportedEncodingException;import java.net.HttpURLConnection;import java.net.URL;import org.json.JSONException;import org.json.JSONObject;/** * 根据IP地址获取详细的地域信息 */public class IPSeeker { public void getAddresses(String content, String encodingString) throws UnsupportedEncodingException { //这里调用pconline的接口 String urlStr = "http://ip.taobao.com/service/getIpInfo.php"; //从http://whois.pconline.com.cn取得IP所在的省市区信息 String returnStr = this.getResult(urlStr, content, encodingString); if (returnStr != null) { System.out.println(returnStr); JSONObject json=null;try {json = new JSONObject(returnStr);System.out.println(json.optJSONObject("data").getString("country"));System.out.println(json.optJSONObject("data").getString("area"));System.out.println(json.optJSONObject("data").getString("region"));System.out.println(json.optJSONObject("data").getString("city"));System.out.println(json.optJSONObject("data").getString("county"));System.out.println(json.optJSONObject("data").getString("isp"));} catch (JSONException e){e.printStackTrace();} } } /** * @param urlStr * 请求的地址 * @param content * 请求的参数 格式为：name=xxx&pwd=xxx * @param encoding * 服务器端请求编码。如GBK,UTF-8等 * @return */ private String getResult(String urlStr, String content, String encoding) { URL url = null; HttpURLConnection connection = null; try { url = new URL(urlStr); connection = (HttpURLConnection) url.openConnection();// 新建连接实例 connection.setConnectTimeout(2000);// 设置连接超时时间，单位毫秒 connection.setReadTimeout(2000);// 设置读取数据超时时间，单位毫秒 connection.setDoOutput(true);// 是否打开输出流 true|false connection.setDoInput(true);// 是否打开输入流true|false connection.setRequestMethod("POST");// 提交方法POST|GET connection.setUseCaches(false);// 是否缓存true|false connection.connect();// 打开连接端口 DataOutputStream out = new DataOutputStream(connection.getOutputStream());// 打开输出流往对端服务器写数据 out.writeBytes(content);// 写数据,也就是提交你的表单 name=xxx&pwd=xxx out.flush();// 刷新 out.close();// 关闭输出流 BufferedReader reader = new BufferedReader(new InputStreamReader( connection.getInputStream(), encoding));// 往对端写完数据对端服务器返回数据 // ,以BufferedReader流来读取 StringBuffer buffer = new StringBuffer(); String line = ""; while ((line = reader.readLine()) != null) { buffer.append(line); } reader.close(); return buffer.toString(); } catch (IOException e) { e.printStackTrace(); } finally { if(connection != null) { connection.disconnect();// 关闭连接 } } return null; } // 测试 public static void main(String[] args) throws UnsupportedEncodingException { IPSeeker seeker = new IPSeeker(); //测试ip 219.136.134.157 中国=华南=广东省=广州市=越秀区=电信 String ip = "219.136.134.157"; try { seeker.getAddresses("ip="+ip, "GBK"); }catch (UnsupportedEncodingException e) { e.printStackTrace(); } }}