淘宝(新浪)API获取IP地址位置信息

 package com.parse;

 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;

 /**
  * 根据IP地址获取详细的地域信息
  * 淘宝API : http://ip.taobao.com/service/getIpInfo.php?ip=218.192.3.42
  * 新浪API : http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=json&ip=218.192.3.42
  * @File AddressUtils.java
  * @Package org.gditc.weicommunity.util
  * @Description TODO
  * @Copyright Copyright © 2014
  * @Site https://github.com/Cryhelyxx
  * @Blog http://blog.csdn.net/Cryhelyxx
  * @Email cryhelyxx@gmail.com
  * @Company GDITC
  * @Date 2014年11月6日 下午1:46:37
  * @author Cryhelyxx
  * @version 1.0
  */
 public class AddressUtils {
     /**
      *
      * @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
      * @throws UnsupportedEncodingException
      */
     public static String getAddresses(String content, String encodingString)
             throws UnsupportedEncodingException {
         // 这里调用淘宝API
         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 = getResult(urlStr, content, encodingString);
         if (returnStr != null) {
             // 处理返回的省市区信息
             System.out.println("(1) unicode转换成中文前的returnStr : " + returnStr);
             returnStr = decodeUnicode(returnStr);
             System.out.println("(2) unicode转换成中文后的returnStr : " + returnStr);
             String[] temp = returnStr.split(",");
             if(temp.length<){
                 return "";//无效IP，局域网测试
             }
             return returnStr;
         }
         return null;
     }
     /**
      * @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 static 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();// 设置连接超时时间，单位毫秒
             connection.setReadTimeout();// 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;
     }
     /**
      * unicode 转换成 中文
      *
      * @author fanhui 2007-3-15
      * @param theString
      * @return
      */
     public static String decodeUnicode(String theString) {
         char aChar;
         int len = theString.length();
         StringBuffer outBuffer = new StringBuffer(len);
         for (int x = ; x < len;) {
             aChar = theString.charAt(x++);
             if (aChar == '\\') {
                 aChar = theString.charAt(x++);
                 if (aChar == 'u') {
                     int value = ;
                     for (int i = ; i < ; i++) {
                         aChar = theString.charAt(x++);
                         switch (aChar) {
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                         case '':
                             value = (value << ) + aChar - '';
                             break;
                         case 'a':
                         case 'b':
                         case 'c':
                         case 'd':
                         case 'e':
                         case 'f':
                             value = (value << ) +  + aChar - 'a';
                             break;
                         case 'A':
                         case 'B':
                         case 'C':
                         case 'D':
                         case 'E':
                         case 'F':
                             value = (value << ) +  + aChar - 'A';
                             break;
                         default:
                             throw new IllegalArgumentException(
                                     "Malformed      encoding.");
                         }
                     }
                     outBuffer.append((char) value);
                 } else {
                     if (aChar == 't') {
                         aChar = '\t';
                     } else if (aChar == 'r') {
                         aChar = '\r';
                     } else if (aChar == 'n') {
                         aChar = '\n';
                     } else if (aChar == 'f') {
                         aChar = '\f';
                     }
                     outBuffer.append(aChar);
                 }
             } else {
                 outBuffer.append(aChar);
             }
         }
         return outBuffer.toString();
     }
     // 测试
     public static void main(String[] args) throws Exception {
         AddressUtils addressUtils = new AddressUtils();
         // 测试ip 219.136.134.157 中国=华南=广东省=广州市=越秀区=电信
         String ip = "182.254.8.146";
         String address = "";
         try {
             address = addressUtils.getAddresses("ip="+ip, "utf-8");
         } catch (UnsupportedEncodingException e) {
             // TODO Auto-generated catch block
             e.printStackTrace();
         }
         System.out.println("parseResult:"+address);
         // 输出结果为：广东省,广州市,越秀区
     }
 }

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