從Google App Engine流式傳輸音頻

Question

是否可以在AppEngine上傳輸來自BlobStore的音頻文件？
如果是的話，那麼流式傳輸.mp3文件來自直接url？

Answer 1

是的！ 這是我實現：

public class Serve extends HttpServlet { 

    private static final long serialVersionUID = 5603629129606331547L; 

    public void doGet(HttpServletRequest req, HttpServletResponse res) throws IOException { 
     BlobKey blobKey = new BlobKey(req.getParameter("blob-key")); 
     BlobstoreServiceFactory.getBlobstoreService().serve(blobKey, res); 
    } 
} 

..這是在web.xml：

<servlet> 
     <servlet-name>Serve</servlet-name> 
     <servlet-class><my-package>.Serve</servlet-class> 
    </servlet> 
    <servlet-mapping> 
     <servlet-name>Serve</servlet-name> 
     <url-pattern>/serve</url-pattern> 
    </servlet-mapping> 

注意， 「直接鏈接」（getServingUrl我想你的意思），只存在於圖片： https://developers.google.com/appengine/docs/java/images/overview#Transforming_Images_from_the_Blobstore