获得一个JSONException：输入端的字符0 [英] Getting a JSONException: end of input at character 0

问题描述

我在PHP的API，将数据发送JSON格式。 我做了如下code，当我在无线工作正常。 但是，当我想从API，当我在3G下载数据时，我收到以下异常： JSONException：输入的字符0结束

I have an API in php, that sends data in JSON format. I made the following code, that works fine when I am on wifi. But when I want to download the data from the API when I am on 3g, I receive the following exception: JSONException: End of input at character 0 of

我不知道为什么它在无线工作，但它不会对移动互联网。 我的code：

I have no idea why it does work on wifi, but it doesn't on mobile internet. My code:

        JSONObject json = getJSONfromURL("http://api.myurl.com/users.json");

        JSONArray objects = json.getJSONArray("objects");
        db.setLockingEnabled(false);
        db.beginTransaction();

        for (int i = 0; i < objects.length(); i++) {
            JSONObject e = objects.getJSONObject(i);

            if(e.getString("UID") != "-1"){
                ContentValues values = new ContentValues();
                //DO DATABASE INSERT. REMOVED THIS CODE FOR READABILITY
                alldata_mProgressDialog.incrementProgressBy(1);
            }
        }

任何人都可以帮助我吗？

Anyone that can help me out?

推荐答案

你可能得到一个空白的响应。它不为空，但反应是空的。所以，你得到这个错误，而不是一个空指针异常

You are probably getting a blank response. Its not null but the response is empty. So you are getting this error and not a Nullpointer exception

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