百度手机号码归属地查询api与返回json处理

前天无意间在网上看到百度ApiStore，然后好奇就进去看了看。正好最近在学习Android，刚学到java基础。抱着锻炼的心态选择手机号码归属地查询api进行练手。api地址 （http://apis.baidu.com/apistore/mobilephoneservice/mobilephone）。百度官方已经给出请求示例 。我们只需要对请求结果json进行解析就可以。

Java请求示例：

 String httpUrl = "http://apis.baidu.com/apistore/mobilephoneservice/mobilephone";
 String httpArg = "tel=15846530170";
 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",  "您自己的apikey");
         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;
 }

我们要做的是进行对请求返回结果result处理，百度给出了返回结果为json，那么就要对json进行解析输出。

百度给出的json返回示例：

 {
 errNum: 0,
 errMsg: "success",
 retData: {
    telString: "15846530170", //手机号码
    province: "黑龙江",    //省份
    carrier: "黑龙江移动"  //运营商
   }
 }

对json解析需要用到json-lib.jar包，网上可以百度到。

json解析核心代码:

JSONObject obj = JSONObject.fromObject(jsonResult1); String errNum = obj.getString("errNum");

演示示例：

 package day02;

 import java.io.BufferedReader;
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.net.HttpURLConnection;
 import java.net.URL;
 import net.sf.json.JSONObject;

 public class Test11 {

     /**
      * 查询手机号码归属地
      * @param args
      */
     public static void main(String[] args) {
         // TODO Auto-generated method stub

         String httpUrl = "http://apis.baidu.com/apistore/mobilephoneservice/mobilephone";
         String httpArg = "tel=15768798455";
         String jsonResult1 = request(httpUrl, httpArg);
         System.out.println(jsonResult1);
         JSONObject obj = JSONObject.fromObject(jsonResult1);
          String errNum = obj.getString("errNum");
          System.out.println(errNum);
          String errMsg = obj.getString("errMsg");
          System.out.println(errMsg);
          String retData = obj.getString("retData");
          JSONObject obj2 = JSONObject.fromObject(retData);
          String telString = obj2.getString("telString");
          String province = obj2.getString("province");
          String carrier = obj2.getString("carrier");
          System.out.println("你查询号码："+telString+"\n"+"归属地："+province+"\n"+"运营商："+carrier);

     }

     /**
      * @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",
                     "你的百度api秘钥");
             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(strRead + " ");
             }
             reader.close();
             result = sbf.toString();
         } catch (Exception e) {
             e.printStackTrace();
         }
         return result;
     }

 }

输出结果：

 {"errNum":0,"errMsg":"success","retData":{"telString":"15737954118","province":"\u6cb3\u5357","carrier":"\u6cb3\u5357\u79fb\u52a8"}}{"errNum":0,"errMsg":"success","retData":{"telString":"15737954118","province":"\u6cb3\u5357","carrier":"\u6cb3\u5357\u79fb\u52a8"}}
 错误码：0
 错误码返回：success
 你查询号码：15737954118
 归属地：河南
 运营商：河南移动

自此百度手机号码归属地api体验成功结束，也是实训期间的练手。