Question

[
   {
      "configurationId":1,
      "configurationName":"CGST",
      "configurationVal":"2.5"
   },
   {
      "configurationId":2,
      "configurationName":"SGST",
      "configurationVal":"2.5"
   },
   {
      "configurationId":3,
      "configurationName":"DELIVERY_CHARGE",
      "configurationVal":"0"
   },
   {
      "configurationId":4,
      "configurationName":"Admin_Mobile",
      "configurationVal":"9500100042,8939404592"
   },
   {
      "configurationId":5,
      "configurationName":"MIN_ORDER_AMOUNT",
      "configurationVal":"98"
   },
   {
      "configurationId":6,
      "configurationName":"Packing_charge",
      "configurationVal":"3"
   },
   {
      "configurationId":7,
      "configurationName":"available_areas",
      "configurationVal":"{\"availableAreas\":[{\"area_id\": \"1\",\"area_name\": \"Velachery\",\"pincode\": \"600042\"},{\"area_id\": \"2\",\"area_name\": \"Nanganallur\",\"pincode\": \"600061\"},{\"area_id\": \"3\",\"area_name\": \"Adambakkam\",\"pincode\": \"323546\"},{\"area_id\": \"4\",\"area_name\": \"Madipakkam\",\"pincode\": \"600091\"},{\"area_id\": \"5\",\"area_name\": \"Perungudi\",\"pincode\": \"600096\"},{\"area_id\": \"6\",\"area_name\": \"Pallikarani\",\"pincode\": \"600100\"}]}"
   },
   {
      "configurationId":8,
      "configurationName":"order_timing",
      "configurationVal":"[{\n\t\"start_time\": \"17:00:00\",\n\t\"end_time\": \"03:00:00\"\n}]"
   }
]

Answer 1

使用以下代码片段解析JsonArray。

String jsonStr = "[{ "configurationId": 1, "configurationName": "CGST",........]";
JSONArray jsonarray = new JSONArray(jsonStr);
for (int i = 0; i < jsonarray.length(); i++) {
    JSONObject jsonobject = jsonarray.getJSONObject(i);
    int configurationId = jsonobject.getInt("configurationId");
    String configurationName = jsonobject.getString("configurationName");
    String configurationVal = jsonobject.getString("configurationVal");
}

最后2个“ configurationVal”是JsonObject本身。因此，您必须再次解析。

希望会有所帮助。

Answer 2

每当我做很多编码来寻找答案时，我的目标就是确保您真正了解自己在做什么，而不仅仅是将我的代码复制并粘贴到您的项目中。如果您从未使用过instanceof，建议您继续阅读。如果您有任何问题，请问我。

我会让你开始。为什么？您没有在帖子中显示任何代码，因此我将说明如何处理。

    JSONArray object = new JSONArray(jsonData);
    //jsonData if the JSON String.
    String configVal = null;

    JSONArray configArray = null;
    JSONArray timingArray = null;

    boolean hasAreas = false;
    boolean hasTiming = false;
    try {
        for (int i = 0; i < object.length(); i++) {
            JSONObject getJSONObject = object.optJSONObject(i);

            if (getJSONObject.get("configurationVal") instanceof JSONObject) {
                JSONObject configValObject = getJSONObject.getJSONObject("configurationVal");
                configArray = configValObject.getJSONArray("availableAreas");
                hasAreas = true;
            } else if (getJSONObject.get("configurationVal") instanceof JSONArray) {
                timingArray = getJSONObject.getJSONArray("configurationVal");
                hasTiming = true;
            }  else {
                configVal = getJSONObject.getString("configurationVal");
            }


            String configName = getJSONObject.getString("configurationName");
            int configId = getJSONObject.getInt("configurationId");

            if (hasAreas) {
                System.out.println("ConfigVal: " + configVal + ", ConfigName: " + configName + ", ConfigId: " + configId + ", AreaInformation: " + configArray);
            }
            if (hasTiming) {
                System.out.println("ConfigVal: " + configVal + ", ConfigName: " + configName + ", ConfigId: " + configId + ", TimingInfo: " + timingArray);
            } 
            if (!hasAreas && !hasTiming) {
                System.out.println("ConfigVal: " + configVal + ", ConfigName: " + configName + ", ConfigId: " + configId);
            }   
            //Reset these...
            hasAreas = false;
            hasTiming = false;
            configVal = null;
        }

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

这将打印出以下内容。

ConfigVal: 2.5, ConfigName: CGST, ConfigId: 1
ConfigVal: 2.5, ConfigName: SGST, ConfigId: 2
ConfigVal: 0, ConfigName: DELIVERY_CHARGE, ConfigId: 3
ConfigVal: 9500100042,8939404592, ConfigName: Admin_Mobile, ConfigId: 4
ConfigVal: 98, ConfigName: MIN_ORDER_AMOUNT, ConfigId: 5
ConfigVal: 3, ConfigName: Packing_charge, ConfigId: 6
ConfigVal: , ConfigName: available_areas, ConfigId: 7, AreaInformation: [{"area_name":"Velachery","pincode":"600042","area_id":"1"},{"area_name":"Nanganallur","pincode":"600061","area_id":"2"},{"area_name":"Adambakkam","pincode":"323546","area_id":"3"},{"area_name":"Madipakkam","pincode":"600091","area_id":"4"},{"area_name":"Perungudi","pincode":"600096","area_id":"5"},{"area_name":"Pallikarani","pincode":"600100","area_id":"6"}]
ConfigVal: , ConfigName: order_timing, ConfigId: 8, TimingInfo: [{"start_time":"17: 00: 00","end_time ":"03: 00: 00"}]

现在，您可以看到，未解析available_areas和order_timing。但是，我确实给了您JSONArray中的信息。这样您就可以按照我的所作所为进行分析。但是，我将为此使用带有List <>的模型。使用起来会更容易。

如何在Android中解析没有JSON对象标题的JSON数组？帮我

2 个答案: