java实现根据ip地址获取地理位置

最近项目某个功能需要根据ip地址从第三方接口获取详细的地理位置，从网上找了很多例子，主要接口有新浪的，淘宝的，腾讯的。试了淘宝的，如果是数量级小的还可以，如果数量级达到上十万级就速度慢了，会导致系统崩溃。下面例子是新浪的，例子不是适合每个项目，需要改一下.

  public static String getIpInfoBySina(String ip){
   // 读取属性文件(属性文件key-value和格式)
    final String PROP_IPSEARCHURL="ipSearchUrl";
    final String RET_SUCCESS="1";
    final String RET="ret";
    final String PROVINCE="province";
    final String CITY="city";
    final String DISTRICT="district";
    final String ISP="isp";
    String ipAddress="";
    if(StringUtils.isBlank(ip)){
      return null;
    }
    String url = SystemParamPropertyUtils.getSystemParamKeyValue(PROP_IPSEARCHURL);//这个是从属性文件中获取url，即新浪接口地址
    if(StringUtils.isNotBlank(url)){
      String path=url+ip;//"http://int.dpool.sina.com.cn/iplookup/iplookup.php?format=js&ip="+ip;
      HttpClient httpClient = new HttpClient();
      Map paramMap = new HashMap();
      String remoteIpInfo="";
      
      try {
 remoteIpInfo = HttpClientUtil.request(httpClient, path, paramMap,"sina");
      } catch (Exception e) {
 e.printStackTrace();
      }
      if(StringUtils.isNotBlank(remoteIpInfo)){
 String _ret=searchValue(remoteIpInfo, RET);
 if(RET_SUCCESS.equals(_ret)){
   String provinceName=searchValue(remoteIpInfo, PROVINCE);
   String cityName=searchValue(remoteIpInfo, CITY);
   String district=searchValue(remoteIpInfo, DISTRICT);
   String isp=searchValue(remoteIpInfo, ISP);
   ipAddress=provinceName+cityName+district+isp;
 }
      }  
    }
    return ipAddress;
  }
 private static String searchValue(String remoteIpInfo,String key){
    String _value="";
   if(StringUtils.isNotBlank(remoteIpInfo)){
     _value=StringUtils.substringBetween(remoteIpInfo,"""+key+"":", ",");
     if(StringUtils.isNotBlank(_value)){
 _value=UnicodeUtils.decodeUnicode(_value); 
     }
   }  
   return _value;
  }

读新浪的接口地址很快，我本人测试到了九万条左右，十分钟。淘宝的话一个多小时，五万多条。还有一个小技巧，就是把读到的ip存到map中，然后下次读的话就直接从map取出，这样快很多。这个会衍生出很多问题，当日志文件达到百万级，千万级，怎么解决。类似淘宝这样的，一秒多少订单，每个订单ip不一样。我不知道怎么解决。有大神知道回我一下。
下面是用淘宝的。

 
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;


public class AddressUtils {
 
 
 public String 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) { 
  // 处理返回的省市区信息 
  System.out.println(returnStr); 
  String[] temp = returnStr.split(","); 
  if(temp.length<3){ 
  return "0";//无效IP，局域网测试 
  } 
  String region = (temp[5].split(":"))[1].replaceAll(""", ""); 
  region = decodeUnicode(region);// 省份 
  
      String country = ""; 
      String area = ""; 
      // String region = ""; 
      String city = ""; 
      String county = ""; 
      String isp = ""; 
      for (int i = 0; i < temp.length; i++) { 
 switch (i) { 
 case 1: 
   country = (temp[i].split(":"))[2].replaceAll(""", ""); 
   country = decodeUnicode(country);// 国家 
   break; 
   case 3: 
     area = (temp[i].split(":"))[1].replaceAll(""", ""); 
     area = decodeUnicode(area);// 地区  
   break; 
   case 5: 
     region = (temp[i].split(":"))[1].replaceAll(""", ""); 
     region = decodeUnicode(region);// 省份  
   break;  
   case 7: 
     city = (temp[i].split(":"))[1].replaceAll(""", ""); 
     city = decodeUnicode(city);// 市区 
   break;  
   case 9: 
county = (temp[i].split(":"))[1].replaceAll(""", ""); 
county = decodeUnicode(county);// 地区  
   break; 
   case 11: 
     isp = (temp[i].split(":"))[1].replaceAll(""", ""); 
     isp = decodeUnicode(isp); // ISP公司 
   break; 
 } 
      } 
   
  System.out.println(country+area+region+city+county+isp); 
  return new StringBuffer(country).append(area).append(region).append(city).append(county).append(isp).toString(); 
 } 
 return null; 
 } 
  
 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(33000);// 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; 
 } 
  
 public static String decodeUnicode(String theString) { 
 char aChar; 
 int len = theString.length(); 
 StringBuffer outBuffer = new StringBuffer(len); 
 for (int x = 0; x < len;) { 
  aChar = theString.charAt(x++); 
  if (aChar == '\') { 
  aChar = theString.charAt(x++); 
  if (aChar == 'u') { 
   int value = 0; 
   for (int i = 0; i < 4; i++) { 
   aChar = theString.charAt(x++); 
   switch (aChar) { 
   case '0': 
   case '1': 
   case '2': 
   case '3': 
   case '4': 
   case '5': 
   case '6': 
   case '7': 
   case '8': 
   case '9': 
    value = (value << 4) + aChar - '0'; 
    break; 
   case 'a': 
   case 'b': 
   case 'c': 
   case 'd': 
   case 'e': 
   case 'f': 
    value = (value << 4) + 10 + aChar - 'a'; 
    break; 
   case 'A': 
   case 'B': 
   case 'C': 
   case 'D': 
   case 'E': 
   case 'F': 
    value = (value << 4) + 10 + 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) { 
 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 = "125.70.11.136"; 
 String address = ""; 
 try { 
  address = addressUtils.getAddresses("ip="+ip, "utf-8"); 
 } catch (UnsupportedEncodingException e) { 
  // TODO Auto-generated catch block 
  e.printStackTrace(); 
 } 
 System.out.println(address); 
 // 输出结果为：广东省,广州市,越秀区 
 } 
 
 
}