
/**
* 获取url访问的文件的内容类型
*/
public class Demo {
public static void main(String[] args) throws IOException {
BufferedInputStream bis = null;
HttpURLConnection urlconnection = null;
URL url = null;
url = new URL("http://yuncode.net");
urlconnection = (HttpURLConnection) url.openConnection();
urlconnection.connect();
bis = new BufferedInputStream(urlconnection.getInputStream());
System.out.println("file type:"
+ HttpURLConnection.guessContentTypeFromStream(bis)); // 获取url访问的文件的内容类型
}
}


