检查URL中的内容：是文件还是网页？ [英] Checking the content from an URL: Is it a file or webpage?
问题描述
我的应用需要根据网址中的内容采取不同的操作。如果内容是文件，我需要下载它。但是，如果内容是网页，我需要打开它。据我所知，有两种网址类型：
I have an app which need different action based on the content from an URL. If the content is a file, I need to download it. But, if the content is a webpage, I need to open it. As far I know, there are two URL types:
- 直接链接。例如： https://dl-ssl.google.com/android /repository/android-14_r04.zip
- 非直接链接。例如： http://www.example.com/downloadfile?file=12345
- Direct link. For example: https://dl-ssl.google.com/android/repository/android-14_r04.zip
- Undirect link. For example: http://www.example.com/downloadfile?file=12345
以及网页示例： https://stackoverflow.com/questions/xxxxxx/how-to-check-a-url-contain
我只有以下代码来解析字符串到 URL ：
I only have the following code to parse a String to URL:
String requestUrl = "https://dl-ssl.google.com/android/repository/android-14_r04.zip";
URL url = new URL(requestUrl);
所以，我的问题：
-
如何查看内容？是文件还是网页？
How can I check the content? Is it a file or webpage?
如果是文件，如何从非直接链接检查内容？
If it's a file, how can I check the content from undirect link?
提前致谢。
推荐答案
你可以查看内容类型：
URLConnection c = url.openConnection();
String contentType = c.getContentType();
for html - text / html;字符集= UTF-8 ;邮编
- 申请/邮编
for html - text/html; charset=utf-8;
for zip - application/zip
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