从凌空API解析数据时出现错误

Question

我正在将身份验证令牌呼叫发送到Rest-Api网址。当我发送呼叫时，它给了我这个错误

“ com.android.volley.ParseError：org.json.JSONException：值类型为java.lang.String的��������������͎�0���W�|NV��！转换为JSONObject“

这里是我发送呼叫的代码

String tokenUrl = "https://api.webname.com/oauth/token?username=username&password=password&grant_type=password";
JsonObjectRequest jsonObjectRequest = new JsonObjectRequest
    (Request.Method.POST, tokenUrl, null, new Response.Listener<JSONObject>() {

        @Override
        public void onResponse(JSONObject response) {
            try {
                //stuff goes here
            }  catch (JSONException e) {
                e.printStackTrace();
            } 

            //Log.i("Response", response.toString());
        } 
    }, new Response.ErrorListener() {

        @Override
        public void onErrorResponse(VolleyError error) {
            Log.i("Response", error.toString());
        } 
    }) {

// * Passing some request headers*
@Override
public Map<String, String> getHeaders() throws AuthFailureError {
    HashMap<String, String> headers = new HashMap();
    headers.put("cache-control", "no-cache");
    headers.put("accept", "*");
    // I have alos tried headers.put("Content-Type", "application/json");
    headers.put("Content-Type", "application/x-www-form-urlencoded");
    headers.put("charset", "utf-8");
    headers.put("Authorization", "Basic Y2xpZW50OnNlY3JldA==");
    headers.put("accept-encoding", "gzip, deflate");
    return headers;
}
};

我在网上搜索过，但是如果我重复他的问题，找不到任何相关的问题，对不起

Answer 1

添加依赖项：

实现'com.android.volley：volley：1.1.0'

使用下面的代码片段调用API：

   private void APICall() {
        // TODO: Implement this method to send token to your app server.
        Common.ProgressDialogShow(context, getString(R.string.please_wait));
        Map<String, String> params = new HashMap<String, String>();
        params.put("username", "username");
        params.put("password", "password");
        params.put("grant_type", "password");
        JsonObjectRequest request = new JsonObjectRequest("https://api.webname.com/oauth/token", new JSONObject(params),
                new Response.Listener<JSONObject>() {

                    @Override
                    public void onResponse(JSONObject response) {
                        try {
                            parseJsonResponse(response);
                        } catch (Exception e) {
                            e.printStackTrace();
                        }
                    }
                },
                new Response.ErrorListener() {

                    @Override
                    public void onErrorResponse(VolleyError error) {
                        if (error.networkResponse != null) {
                            int statusCode = error.networkResponse.statusCode;
                            NetworkResponse response = error.networkResponse;

                            Log.d("testerror", "" + statusCode + " " + response.data);
                        }
                    }
                }) {
            @Override
            public Map<String, String> getHeaders() {
                Map<String, String> headers = new HashMap<String, String>();
                headers.put("User-agent", "Mozilla/5.0 (TV; rv:44.0) Gecko/44.0 Firefox/44.0");
                return headers;
            }
        };

        Common.setVolleyConnectionTimeout(request);
        ApplicationClass.getInstance().getRequestQueue().add(request);

    }


    /**
     * <b>Description</b> - Get back response for calling  APICall API
     *
     * @param jsonObject - Pass API response
     */
    private void parseJsonResponse(JSONObject jsonObject) {
        try {
            Common.ProgressDialogDismiss();
            Log.i("get response", "get response" + jsonObject);
            String access_token = jsonObject.getString("access_token");
            String token_type = jsonObject.getString("token_type");
            String refresh_token = jsonObject.getString("refresh_token");
            String expires_in = jsonObject.getString("expires_in");
            String scope = jsonObject.getString("scope");
            String jti = jsonObject.getString("jti");

            Log.d(TAG, "access_token: " + access_token);
            Log.d(TAG, "token_type: " + token_type);
            Log.d(TAG, "refresh_token: " + refresh_token);
            Log.d(TAG, "expires_in: " + expires_in);
            Log.d(TAG, "scope: " + scope);
            Log.d(TAG, "jti: " + jti);

        } catch (Exception e) {
            e.getStackTrace();
        }
    }

您说过可以在仿真器中正常运行并在真实设备中运行，然后在以下链接中查看：

Soluion-1Soluion-2Soluion-3Soluion-4

此代码可以帮助您。.