IPアドレスを特定の地理的位置に解析する

宝を洗って提供する住所の解析庫を使ってIPの解析を行って、具体的なコードは以下の通りです:

import com.alibaba.fastjson.JSON;
import com.alibaba.fastjson.JSONObject;

import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;


/**
 *   IP           
 */
public class AddressUtil {
    public static RegionInfo analyticsIp(String content, String encodingString) {
        //     pconline   
        String urlStr = "http://ip.taobao.com/service/getIpInfo.php";
        //  http://whois.pconline.com.cn  IP        
        String returnStr = getResult(urlStr, content, encodingString);
        RegionInfo info = null;
        if (returnStr != null) {
            //           
            //System.out.println("1:  " + returnStr);
            String data = JSON.parseObject(returnStr).getString("data");
            JSONObject jsonObject = JSON.parseObject(data);
            info = new RegionInfo(jsonObject.getString("country"),
                    jsonObject.getString("region"),
                            jsonObject.getString("city"));
        }
        return info;
    }

    /**
     * @param urlStr        
     * @param content           ：name=xxx&pwd=xxx
     * @param encoding         。 GBK,UTF-8 
     * @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();//       
            connection.setConnectTimeout(2000);//         ，    
            connection.setReadTimeout(2000);//           ，    
            connection.setDoOutput(true);//         true|false
            connection.setDoInput(true);//        true|false
            connection.setRequestMethod("POST");//     POST|GET
            connection.setUseCaches(false);//     true|false
            connection.connect();//       
            DataOutputStream out = new DataOutputStream(connection
                    .getOutputStream());//               
            out.writeBytes(content);//    ,          name=xxx&pwd=xxx
            out.flush();//   
            out.close();//      
            BufferedReader reader = new BufferedReader(new InputStreamReader(
                    connection.getInputStream(), encoding));//                 
            // , BufferedReader    
            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();//     
            }
        }
        return null;
    }

    /**
     * unicode       
     *
     * @param theString
     * @return
     */
    private 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 = '
';
                    } else if (aChar == 'f') {
                        aChar = '\f';
                    }
                    outBuffer.append(aChar);
                }
            } else {
                outBuffer.append(aChar);
            }
        }
        return outBuffer.toString();
    }

    /**
     *         
     */
    public static class RegionInfo{
        private String country;
        private String region;
        private String city;

        public RegionInfo(){}
        public RegionInfo(String country, String region, String city) {
            this.country = country;
            this.region = region;
            this.city = city;
        }

        public String getCountry() {
            return country;
        }

        public void setCountry(String country) {
            this.country = country;
        }

        public String getRegion() {
            return region;
        }

        public void setRegion(String region) {
            this.region = region;
        }

        public String getCity() {
            return city;
        }

        public void setCity(String city) {
            this.city = city;
        }

        @Override
        public String toString() {
            return "RegionInfo{" +
                    "country='" + country + '\'' +
                    ", region='" + region + '\'' +
                    ", city='" + city + '\'' +
                    '}';
        }
    }


}    

ここで使用されるfastjson jarは、maven依存性が次のようになります.

 <dependency>
            <groupId>com.alibabagroupId>
            <artifactId>fastjsonartifactId>
            <version>1.2.3version>
dependency>

アドレス解析ツールクラスをテストします.

public class TestAddressUtil {
    //   
    public static void main(String[] args) {
        AddressUtil addressUtils = new AddressUtil();
        //   ip
        // 219.136.134.157
        // 61.244.148.166
        // 114.61.94.253
        // 222.218.157.234
        // 59.125.39.5
        String ip = "219.136.134.157";
        AddressUtil.RegionInfo info =  addressUtils.analyticsIp("ip=" + ip, "utf-8");
        System.out.println(info);
    }
}