Question

我正在创建一个从Internet获取JSON文件的活动（通过AsyncTask）。我遇到了这个错误： org.json.JSONException：字符处未终止的字符串...

我检查了我在应用程序中下载的JSON文件，发现有一个包含括号的对象。这是可疑的JSON对象：

[{ ... }{"id":"5674563646","cat":"Uncategorized","subcat":"Uncategorized","name":"Tecno Lab","desc":"We run open hours from 8-10pm and [most] Saturdays from 12-6pm.","addr":"Main Street","city":"New York","country":"United States"} { ... }]

那么，如何从我的活动中删除括号？

以下是我下载JSON文件的AsyncTask的一部分：

protected String doInBackground(String... urls) {
    int timeout = 10;
    int i, count = 0;

    BasicHttpParams basicParams = new BasicHttpParams();
    HttpConnectionParams.setConnectionTimeout(basicParams, timeout * 1000);
    HttpConnectionParams.setSoTimeout(basicParams, timeout * 1000 );
    DefaultHttpClient client = new DefaultHttpClient(basicParams);

    StringBuilder stringBuilder = new StringBuilder();
    for (i = 0; i < urls.length; i++) {
        HttpGet request = new HttpGet(urls[i]);
        request.addHeader("Cache-Control", "no-cache");

        try {
            HttpResponse response = client.execute(request);
            HttpEntity entity = response.getEntity();
            InputStreamReader in = new InputStreamReader(entity.getContent());
            BufferedReader reader = new BufferedReader(in);
            String line = "";

            while ((line = reader.readLine()) != null) {
                stringBuilder.append(line);

                count++;
            }
        } catch (Exception e) {
            e.printStackTrace();
            return null;
        }
        publishProgress(count * 100 / urls.length);
    }
    return stringBuilder.toString();
}

protected void onPostExecute(String result) {
    super.onPostExecute(result);

...
    JSONArray ja = new JSONArray(result);
...

Answer 1

JSON响应通常包含两种括号{}和[]，但两个括号具有完全不同的含义和用法。而第一个代表JSON对象，第二个代表JSON数组。

在您下载的JSON文件中，问题与[most]字段无关，因为它位于double quotes内。您的JSON输入中的问题是"addr": "Main Street"。那里缺少开头的双引号。

更正了JSON输入：

{"id":"5674563646","cat":"Uncategorized","subcat":"Uncategorized","name":"Tecno Lab","desc":"We run open hours from 8-10pm and [most] Saturdays from 12-6pm.","addr":"Main Street","city":"New York","country":"United States"}

如何处理包含带括号的字符串的JSON？

1 个答案: