在工作中需要自定義一個UDF類,在hive中對手機號解析,得到手機號的歸屬地和運營商.在網上查詢許久,有的API已經過時有的需要申請註冊並且還有次數等一些限制,最終選定了某度的免費API

"http://mobsec-dianhua.baidu.com/dianhua_api/open/location?tel=" + mobileNumber;

   目前還沒遇到次數限制也不需要過多的其他條件,只需要通過對API返回的JSON結果進行分析來得到需要的內容.

public static String getMobileCity(String mobileNumber) {
        //百度的API地址
        String urlString = "http://mobsec-dianhua.baidu.com/dianhua_api/open/location?tel=" + mobileNumber;
        StringBuilder sb = new StringBuilder();
        BufferedReader buffer;
        String provinces = "";
        String city = "";
        String operators = "";
        try {
            URL url = new URL(urlString);
            //獲取URL地址中的頁面內容
            InputStream in = url.openStream();
            // 解決亂碼問題
            buffer = new BufferedReader(new InputStreamReader(in, "utf8"));
            String line = null;
            //一行一行的讀取資料
            while ((line = buffer.readLine()) != null) {
                sb.append(line);
            }
            in.close();
            buffer.close();
            //定義字串
//            String objectStr = "{"response":{"***********":{"detail":{"area":[{"city":"開封"}],"province":"河南","type":"domestic","operator":"移動"},"location":"河南開封移動"}},"responseHeader":{"status":200,"time":1532934563306,"version":"1.1.0"}}";
            //1、使用JSONObject
            JSONObject jsonObject2 = JSONObject.parseObject(sb.toString());
            String result = jsonObject2.getString("response");
//          使用fastjson的parseObject方法將json字串轉換成Map
            LinkedHashMap<String, String> jsonMap = JSON.parseObject(result, new TypeReference<LinkedHashMap<String, String>>() {
            });
            for (Map.Entry<String, String> entry : jsonMap.entrySet()) {
                String value = entry.getValue();
                LinkedHashMap<String, String> jsonMap1 = JSON.parseObject(value, new TypeReference<LinkedHashMap<String, String>>() {
                });
                for (Map.Entry<String, String> entry1 : jsonMap1.entrySet()) {
                    if (entry1.getKey().equals("detail")) {
                        String value1 = entry1.getValue();
                        LinkedHashMap<String, String> jsonMap2 = JSON.parseObject(value1, new TypeReference<LinkedHashMap<String, String>>() {
                        });
                        for (Map.Entry<String, String> entry2 : jsonMap2.entrySet()) {
                            if (entry2.getKey().equals("province")) {
                                provinces = entry2.getValue();
                            }
                            if (entry2.getKey().equals("operator")) {
                                operators = entry2.getValue();
                            }
                            if (entry2.getKey().equals("area")) {
                                String value2 = entry2.getValue();
                                String value3 = value2.substring(1, value2.length() - 1);
                                LinkedHashMap<String, String> jsonMap3 = JSON.parseObject(value3, new TypeReference<LinkedHashMap<String, String>>() {
                                });
                                for (Map.Entry<String, String> entry3 : jsonMap3.entrySet()) {
                                    city = entry3.getValue();
                                }
                            }
                        }
                    }
                }
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
        //從JSONObject物件中讀取城市名稱
        return provinces+" "+city+" "+operators;
    }
}
 

因本人知識有限,沒有考慮優化, 希望各位多提一些改進的意見,謝謝大家~