Question

这是我的json数组。

[
  {
    "type":"select",
    "label":"Select",
    "className":"form-control",
    "name":"select-1497355331262",
    "values":[
              {
                "label":"Option 1", 
                "value":"option-1",
                "selected":true
               }, 
             {
              "label":"Option 2",
              "value":"option-2"
             },
            {
              "label":"Option 3", 
              "value":"option-3"
            }
         ]
       }
]

我的Appraoch：

JSONArray js = null;
            try {
                js = new JSONArray(json);
            } catch (JSONException e) {
                e.printStackTrace();
            }

            JSONObject obj = null;

            for (int i = 0; i < js.length(); i++) {

                try {
                    obj = js.getJSONObject(i);

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

                try {
                    type = obj.getString("type");
                } catch (JSONException e) {
                    type = null;
                }

                System.out.println("Type : " + type);


                try {
                    JSONArray jContent = obj.getJSONArray("values");
                    System.out.println(jContent.toString());
                    for (int iterate = 0; iterate < jContent.length(); iterate++) {
                        JSONObject inner = jContent.getJSONObject(iterate);
                        String inner_label = (String) inner.get("label");

                        System.out.println(inner_label);

                        String val = (String) inner.get("value");
                        boolean sel;
                        try {
                            sel = (boolean) inner.get("selected");

                        } catch (JSONException j) {
                            sel = false;
                        }
                        System.out.print(inner_label);
                        System.out.print(" " + val);
                        System.out.println(" " + sel);

                    }

                } catch (JSONException e) {
                    System.out.println("There is some error");
                }

                try {
                    label = obj.getString("label");
                } catch (JSONException e) {
                    e.printStackTrace();
                }
                try {
                    access = obj.getBoolean("access");
                } catch (JSONException e) {
                    access = false;
                }

                try {
                    role = obj.getString("role");
                } catch (JSONException e) {
                    role = null;
                }

                try {
                    subtype = obj.getString("subtype");
                } catch (JSONException e) {

                    subtype = null;
                }

                try {
                    maxlength = obj.getString("maxlength");
                } catch (JSONException e) {

                    maxlength = null;
                }

                try {
                    name = obj.getString("name");
                } catch (JSONException e) {

                    name = null;
                }

                try {
                    description = obj.getString("description");
                } catch (JSONException e) {

                    description = null;
                }

                try {
                    classname = obj.getString("className");
                } catch (JSONException e) {

                    classname = null;
                }

                try {
                    placeholder = obj.getString("placeholder");
                } catch (JSONException e) {

                    placeholder = null;
                }

                try {
                    value = obj.getString("value");
                } catch (JSONException e) {

                    value = null;
                }

                try {
                    required = obj.getBoolean("required");
                } catch (JSONException e) {

                    required = false;
                }
                try {
                    toggle = obj.getBoolean("toggle");
                } catch (JSONException e) {
                    toggle = false;
                }
                try {
                    inline = obj.getBoolean("inline");
                } catch (JSONException e) {
                    inline = false;
                }
                try {
                    enableother = obj.getBoolean("other");
                } catch (JSONException e) {
                    enableother = false;
                }
                try {
                    multipleFiles = obj.getBoolean("multiple");
                } catch (JSONException e) {
                    multipleFiles = false;
                }
                try {
                    style = obj.getString("style");
                } catch (JSONException e) {
                    style = null;
                }
                try {
                    min = obj.getString("min");
                } catch (JSONException e) {
                    min = null;
                }
                try {
                    max = obj.getString("max");
                } catch (JSONException e) {
                    max = null;
                }
                try {
                    step = obj.getString("step");
                } catch (JSONException e) {
                    step = null;
                }
                try {
                    rows = obj.getString("rows");
                } catch (JSONException e) {
                    rows = null;
                }

我能够获取所有其他对象值，我无法读取values数组。我已经为它编写了代码，但它直接转到catch块打印错误消息＆＃34;有一些错误＆＃34;。向你求助。

Answer 1

解决了...值不是一个数组它是一个对象....所以这就是我所做的。它奏效了。

 try {

                String j2 = obj.getString("values");
                JSONArray jContent = new JSONArray(j2);
                                    for (int iterate = 0; iterate < jContent.length(); iterate++) {
                        JSONObject inner = jContent.getJSONObject(iterate);
                        String inner_label = (String) inner.get("label");

                        System.out.println(inner_label);

                        String val = (String) inner.get("value");
                        boolean sel;
                        try {
                            sel = (boolean) inner.get("selected");

                        } catch (JSONException j) {
                            sel = false;
                        }
                        System.out.print(inner_label);
                        System.out.print(" " + val);
                        System.out.println(" " + sel);

                    }

org.json.JSONException：JSONObject [＆＃34; values＆＃34;]不是JSONArray。＆＃34;

1 个答案: