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 * * @project:personGocheck * @class:AddressUtils.java * @author:heguanhua E-mail:37809893@qq.com * @date:Nov 14, 2012 6:38:25 PM */public class Ip {  /**     *     * @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 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";  //其中code的值的含义为,0:成功,1:失败。  //(json格式的)国家 、省(自治区或直辖市)、市(县)、运营商  //根据不同的单词选择对应的信息  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(",");   //System.out.println(temp[5]);   if(temp.length<3){    return "0";// 无效IP,局域网测试   }   //省   String region = (temp[5].split(":"))[1].replaceAll("\"", "");   region = decodeUnicode(region);// 省份   String city = (temp[7].split(":"))[1].replaceAll("\"", "");   System.out.println(decodeUnicode(city)+"....");   return region;  }  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 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; } /**     * 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 = 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) {  Ip addressUtils = new Ip();  String ip = "0:0:0:0:0:0:0:1";  String address = "";  try {   address = addressUtils.getAddresses("ip="+ip, "utf-8");  } catch (UnsupportedEncodingException e) {   // TODO Auto-generated catch block   e.printStackTrace();  }  System.out.println(address); }}