我有一个大问题。通常，我没有随时收到此错误。但现在我收到了。怎么能解决这个问题？我研究并且我知道我需要使用getBodyContentType（）创建自定义标头。但那不是我的解决方案..
public void getToken(final Activity activity, final String paramUsername, final String paramPassword) {
String tag_json_obj = "getToken";
SharedComponent.pDialog = new ProgressDialog(activity);
SharedComponent.pDialog.setMessage(context.getString(R.string.controlYourInfo));
SharedComponent.pDialog.setCancelable(false);
SharedComponent.pDialog.show();
JSONObject params = new JSONObject();
try {
params.put("username", paramUsername);
params.put("password", paramPassword);
params.put("grant_type", "password");
} catch (JSONException e) {
e.printStackTrace();
}
JsonObjectRequest jsonObjReq = new JsonObjectRequest(Request.Method.POST,
WebUrls.getToken, params,
new Response.Listener<JSONObject>() {
@Override
public void onResponse(JSONObject response) {
// Log.d(TAG, response.toString());
SharedComponent.pDialog.hide();
try {
if (response.toString().contains("error")) {
error = response.getString("error");
error_description = response.getString("error_description");
Toast.makeText(context, error_description, Toast.LENGTH_LONG).show();
} else {
access_token = response.getString("access_token");
token_type = response.getString("token_type");
expires_in = response.getInt("expires_in");
SharedComponent.sharedEditor.putString("TOKEN", "Bearer " + access_token);
SharedComponent.sharedEditor.putString("LOGGED", "LOGGED");
SharedComponent.sharedEditor.commit();
Log.e("TOKEN", "Bearer " + access_token);
Intent intent = new Intent(activity, MainScreen.class);
context.startActivity(intent);
((Activity) context).finish();
}
} catch (JSONException e) {
e.printStackTrace();
Toast.makeText(context,
"Error: " + e.getMessage(),
Toast.LENGTH_LONG).show();
}
}
}, new Response.ErrorListener() {
@Override
public void onErrorResponse(VolleyError error) {
// VolleyLog.d(TAG, "Error: " + error.getMessage());
SharedComponent.pDialog.hide();
}
}) {
@Override
public String getBodyContentType() {
return "application/x-www-form-urlencoded";
}
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
HashMap<String, String> headers = new HashMap<String, String>();
headers.put("Accept", "application/json");
headers.put("Content-Type", getBodyContentType());
return headers;
}
};
// Adding request to request queue
AppController.getInstance().addToRequestQueue(jsonObjReq, tag_json_obj);
}