Android JSON for 声明 JAVA

Question

输出不断重复每个属性的名称。只需要看到名字一次，然后prop_name和address就可以在单个名字下为每个场合打印出来。 JSON 看起来像：

 [{"pmid":"2","name":"CARLYLE MANAGEMENT","result":"1","properties":[{"prop_id":"32","prop_name":"Bonneville Tower","address":"25801 Lakeshore","city":"Euclid","state":"OH","zip":"44132","lat":"41.6223","long":"-81.5034"}]},
 {"pmid":"1","name":"COMMERCIAL ONE REALTY","result":"18","properties":[{"prop_id":"3","prop_name":"Autumn Chase Apartments","address":"146 Grand Circuit Blvd.","city":"Delaware","state":"OH","zip":"43015","lat":"40.3105","long":"-83.1138"},
{"prop_id":"6","prop_name":"Barrington Club Apartments","address":"4600 Barrington Club","city":"Columbus","state":"OH","zip":"43220","lat":"40.0536","long":"-83.0448"},{"prop_id":"17","prop_name":"Battleship Building Condominium","address":"444 North Front St.","city":"Columbus","state":"OH","zip":"43215","lat":"39.9712","long":"-83.0042"}]

代码目前是：

  String pmid = mJsonObject.getString("pmid");
                String name = mJsonObject.getString("name");
                String result = mJsonObject.getString("result");

                    JSONArray mJsonArrayProperty = mJsonObject.getJSONArray("properties");
                    int innerLength = mJsonArrayProperty.length();
                    for (int k = 0; k < innerLength; k++) {
              //  JSONArray mJsonArrayProperty = mJsonObject.getJSONArray("properties");
              //  for (int i = 0; i < mJsonArrayProperty.length(); i++) {
                    JSONObject mJsonObjectProperty = mJsonArrayProperty.getJSONObject(k);

                    String prop_id = mJsonObjectProperty.getString("prop_id");
                    String prop_name = mJsonObjectProperty.getString("prop_name");
                    String address = mJsonObjectProperty.getString("address");
                    String city = mJsonObjectProperty.getString("city");
                    String state = mJsonObjectProperty.getString("state");
                    String zip = mJsonObjectProperty.getString("zip");
                    String lat = mJsonObjectProperty.getString("lat");
                    String lon = mJsonObjectProperty.getString("long");

                    // tmp hashmap for single contact

                        HashMap<String, String> contact = new HashMap<String, String>();
                    // adding each child node to HashMap key => value
                    contact.put(TAG_EMAIL, prop_name);
                        contact.put(TAG_NAME, name);
                    contact.put(TAG_PHONE, address);


                    // adding contact to contact list
                    contactList.add(contact);
                }

            } }catch (JSONException e) {
                e.printStackTrace();
            }

输出给了我 prop_name 和地址，但它也一遍又一遍地说出这个名字。目标是查看名称一次，然后查看其下的多个属性。这如何通过 for 或 if 语句或任何其他方式来完成。

Answer 1

我只是在写算法，你怎么做...

• 首先，您必须获得JSONObject，其中包含jsondata。
• 您应该从 JSONObject 得到 JSONArray，因为您拥有的整个 jsondata 是一个数组。
• 现在你应该从JSONArray 得到字符串pmid、名称等。
• 现在你必须再次获得JSONArray，因为properties 是JSONArray 现在你可以迭代它。

为此，您应该使用两个 for 循环或任何您想使用的迭代方法。

Answer 2

    Try Out this...

    JSONArray one=new JSONArray(json);
      for (int i = 0; i < one.length(); i++)
    {
        JSONObject jsonObject=one.getJSONObject(i);
        String pmid=jsonObject.getString("pmid");
        String name=jsonObject.getString("name");
        String result=jsonObject.getString("result");
        JSONArray properties=jsonObject.getJSONArray("properties");
        for (int j = 0; j < properties.length(); j++)
        {
            JSONObject js=properties.getJSONObject(j);
            String prop_id=js.getString("prop_id");
            String prop_name=js.getString("prop_name");
            String address=js.getString("address");
            String city=js.getString("city");
            String state=js.getString("state");
            String zip=js.getString("zip");
            String lat=js.getString("lat");
            String Long=js.getString("long");
        }
    }