Question

{
    "status": "true",
    "value": {
        "products": [
            {
                "id": "1",
                "store_categories_id": "10",
                "description": "Chicken Briyani",
                "unit_price": "120",
                "pro_descripaation": "",
                "pro_image": ""
            },
            {
                "id": "2",
                "store_categories_id": "10",
                "description": "Vegetable Thali",
                "unit_price": "100",
                "pro_descripaation": "",
                "pro_image": ""
            }
        ]
    }
}

错误：org.json.JSONException：索引2超出范围[0..2）

try{
    JSONArray product_array = value_array.getJSONArray("products");
    for (int i = 0; i < response.length(); i++) {
        if (status.equals("true")) {
            // progressDialog.dismiss();

            Toast.makeText(getApplicationContext(), value, Toast.LENGTH_SHORT).show();
        } else if (status.equals("true")) {

            // progressDialog.dismiss();
            JSONObject jsonobject = product_array.getJSONObject(i);

            ProductList productList = new ProductList();

            productList.setDescription(jsonobject.getString(Constants.KEY_PRODUCT_DESCRIPTION));

            productList.setId(jsonobject.getString(Constants.KEY_PRODUCT_ID));
            Log.v("ganesh","keyboard");
            productListArray.add(productList);
            adapter.notifyDataSetChanged();
        }
    }
} catch (JSONException exception) {
    // progressDialog.dismiss();
    Log.e("--JSON EXCEPTION--", exception.toString());
}

任何人都可以帮我解决这个问题吗？

Answer 1

你的代码中有一些东西似乎不对，但由于我没有整个上下文，特别是两件事情很奇怪：

你的for循环从0到response.length()，这可能比product_array中的对象多。因此，product_array.getJSONObject(i);您将超出范围异常您可能希望使用product_array.size()或product_array.length()，depending on your import。
您的if..else if不正确。您检查两次status.equals("true")，这意味着代码永远不会出现在第二个if。

Answer 2

private void callAPI_togetproducts（）{enter code here // progressDialog = ProgressDialog.show(StoreMenuActivity.this, "Please wait ...", "Requesting...", true);在此输入代码 // progressDialog.setCancelable（false）; enter code here OnRequestCompletedListener listener = new OnRequestCompletedListener（）{enter code here @override enter code here public void onRequestCompleted（String response）{ Log.v（“ - OUTPUT STORE MENU--”，response.toString（））; 的System.out.println（response.toString（））; //progressDialog.dismiss（）; 尝试{ JSONObject obj = new JSONObject（response）; final String status = obj.getString（“status”）; final String value = obj.getString（“value”）; JSONObject value_array = obj.getJSONObject（“value”）;

                JSONArray product_array = value_array.getJSONArray("products");

               //  final int product_array = response.length();
                //final int response = products.length();

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


                    if (status.equals("false")) {
                        // progressDialog.dismiss();
                        Toast.makeText(getApplicationContext(), value, Toast.LENGTH_SHORT).show();
                    } else if (status.equals("true")) {
                        // progressDialog.dismiss();

                        JSONObject jsonobject = product_array.getJSONObject(i);
                        ProductList productList = new ProductList();
                        productList.setDescription(jsonobject.getString(Constants.KEY_PRODUCT_DESCRIPTION));
                       productList.setId(jsonobject.getString(Constants.KEY_PRODUCT_ID));
                        productListArray.add(productList);
                        adapter.notifyDataSetChanged();
                    }
                }
            } catch (JSONException exception) {
                // progressDialog.dismiss();
                Log.e("--JSON EXCEPTION--", exception.toString());
            }
        }
    };
    HashMap<String, String> user = session.getUserDetails();
    // token
    String api_token = user.get(SessionManager.KEY_APITOKEN);

    ServiceCalls.callAPI_togetproducts(this, Request.Method.POST,Constants.GET_PRODUCTS, listener, api_token,id);
}

JSON索引2超出范围异常

2 个答案: