根据ip获取城市

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package com.thinkgem.jeesite.test.test;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:jkf *  @date：April 12, 2017 16:06:25 PM */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 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 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) {        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 = "222.59.135.134";        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    }}
转自：http://www.phpstudy.net/b.php/95046.html
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