com.android.volley.ParseError: org.json.JSONException
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com.android.volley.ParseError: org.json.JSONException
提问by Mohammed Subhi Sheikh Quroush
I got this error from volley library
我从 volley 图书馆得到这个错误
@Override
public void onErrorResponse(VolleyError error) {
error.printStackTrace();
}
the error
错误
com.android.volley.ParseError: org.json.JSONException: Value [{"id":"admin","name":"Admin"}] of type org.json.JSONArray cannot be converted to JSONObject
How can I receive the result as string and then I will process it using Hymanson ?
如何以字符串形式接收结果，然后使用 Hymanson 处理它？
回答by Pasquale Anatriello
If you want to receive the result as a string don't use the JSONRequest. Go with the simple Request class. Your problem is pretty simple the server is giving back a JSONArray with just one element inside. A JSONArray is not a JSONObject. That's why the parsing is failing.
如果您想以字符串形式接收结果，请不要使用 JSONRequest。使用简单的 Request 类。您的问题很简单，服务器返回一个 JSONArray，里面只有一个元素。JSONArray 不是 JSONObject。这就是解析失败的原因。
回答by Md. Shahinur Rahman
We Have to use JsonArrayRequestinstead of JsonObjectRequest. The code as:
我们必须使用JsonArrayRequest而不是JsonObjectRequest。代码如下：
RequestQueue queue = Volley.newRequestQueue(this);
final String url = "http://192.168.88.253/mybazar/get_product_list.php";
// prepare the Request
JsonArrayRequest getRequest = new JsonArrayRequest(Request.Method.GET, url, null,
new Response.Listener<JSONArray>()
{
@Override
public void onResponse(JSONArray response) {
// display response
Log.d("Response", response.toString());
}
},
new Response.ErrorListener()
{
@Override
public void onErrorResponse(VolleyError error) {
Log.d("Error.Response", error.toString());
}
}
);
// add it to the RequestQueue
queue.add(getRequest);
Hope, it's solve the problem.
希望，它解决了问题。
回答by Mohammed Subhi Sheikh Quroush
I noticed that there is class JsonArrayRequest supported by volley so I use this class and the problem solved, I was using JsonObjectRequest
我注意到 volley 支持类 JsonArrayRequest 所以我使用这个类并且问题解决了，我使用的是 JsonObjectRequest
回答by Budhdi Sharma
Probably the below logic will work for you:
可能以下逻辑对您有用：
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest(
Request.Method.GET,
url,
null,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
try {
JSONObject jsonObject1 = new JSONObject(response.toString());
JSONArray jsonArray = jsonObject1.getJSONArray("statewise");
Log.d("Json response", "onResponse: "+jsonObject1.toString());
for (int i = 0; i < jsonArray.length; i++) {
JSONObject jsonObject = jsonArray.getJSONObject(i);
//Here you will get your result so can use textview
//to populate the result
}
} catch (JSONException e) {
e.printStackTrace();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
Log.d(TAG, "onErrorResponse: "+error);
}
});
RequestQueue requestQueue = Volley.newRequestQueue(this);
requestQueue.add(jsonObjectRequest);
}
