java实现手机归属地查询

import java.io.BufferedReader;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;

public class test {

public static void main(String[] args) {
String httpUrl = "http://apis.baidu.com/showapi_open_bus/mobile/find";
String httpArg = "num=15923736935";
String jsonResult = request(httpUrl, httpArg);
System.out.println(jsonResult);
}

/**
* @param urlAll
*            :请求接口
* @param httpArg
*            :参数
* @return 返回结果
*/
public static String request(String httpUrl, String httpArg) {
    BufferedReader reader = null;
    String result = null;
    StringBuffer sbf = new StringBuffer();
    httpUrl = httpUrl + "?" + httpArg;

    try {
        URL url = new URL(httpUrl);
        HttpURLConnection connection = (HttpURLConnection) url
                .openConnection();
        connection.setRequestMethod("GET");
        // 填入apikey到HTTP header
        connection.setRequestProperty("apikey",  "4252db17d2e8ae62db760a521d841f68");
        connection.connect();
        InputStream is = connection.getInputStream();
        reader = new BufferedReader(new InputStreamReader(is, "UTF-8"));
        String strRead = null;
        while ((strRead = reader.readLine()) != null) {
            sbf.append(strRead);
            sbf.append("\r\n");
        }
        reader.close();
        result = sbf.toString();
    } catch (Exception e) {
        e.printStackTrace();
    }
    return result;
}
}