Android - 从url下载JSON文件 [英] Android - download JSON file from url

问题描述

是否可以从URL下载包含JSON数据的文件？此外，我需要获取的文件没有文件扩展名，这是一个问题还是我可以强制它下载时具有.txt扩展名？

Is it possible to download a file with JSON data inside it from a URL? Also, the files I need to get have no file extension, is this a problem or can i force it to have a .txt extension upon download?

更新：
我忘了提及，网站需要输入用户名和密码才能访问我所知道的网站。有没有办法在检索文件时输入这些值？

UPDATE: I forgot to mention, that the website requires a username and password entered in order to access the site which i know. There a way to input these values in as I retrieve the file?

推荐答案

您是否尝试过使用URLConnection？

Have you tried using URLConnection?

private InputStream getStream(String url) {
    try {
        URL url = new URL(url);
        URLConnection urlConnection = url.openConnection();
        urlConnection.setConnectTimeout(1000);
        return urlConnection.getInputStream();
    } catch (Exception ex) {
        return null;
    }
}

还要记住像这样编码你的参数：

Also remember to encode your params like this:

String action="blabla";
InputStream myStream=getStream("http://www.myweb.com/action.php?action="+URLEncoder.encode(action));

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