无疑又傻福利局的问题！我有一个Grails控制器包含一个视频文件（* .MP4文件，以准确）的内容的字节数组。我熟悉如何呈现JSON，XML等基本类型，从一个Grails控制器，但是我找不到，展示了如何输出视频的任何实例。从本质上说我要做到以下几点：

 渲染字节作为MP4
 

我意识到我可能需要一个结构，例如：

 渲染（文字：＆LT; XML＆GT;一些XML＆LT; / XML＆gt;中，则contentType：视频/ MPEG，编：UTF-8）
 

但我并不清楚我是如何得到的字节数组中there.Obviously我不是渲染类似HTML的内容的专家。我一直躲在库函数太长了！任何指针引用或例子是很多AP preciated。

所以，如果它有助于指向正确的方向的意见，与视频中的字节从我读的的JetS3t库中的S3对象来了。

 的OutputStream OUT = response.getOutputStream（）
    //设置字节数组
    byte []的内容= yourS3Object.getBytes（）


    response.setContentLength（content.size（））
    response.addHeader（内容处置，附件;文件名= $ {yourS3Object.fileName}）
    response.addHeader（内容型，视频/ QuickTime的）
    out.write（内容）
    out.close（）
 

这是应该做的伎俩。

No doubt another silly newb question! I have a byte array in a Grails controller that contains the contents of a video file (an *.mp4 file to be exact). I am familiar with how to render JSON, XML and other basic types from a grails controller but I can't find any examples showing how to output video. In essence I want to do the following:

  render bytes as MP4

I realize that I probably need a construct such as:

  render(text:"<xml>some xml</xml>",contentType:"video/mpeg",encoding:"UTF-8")

but I'm not clear how I get the byte array in there.Obviously I am not an expert on rendering html-like content. I've been hiding behind library functions too long! Any pointers to a reference or example would be much appreciated.

So if it helps point the advice in the right direction, the bytes with the video are coming from an S3 object that I am reading with the jets3t library.

    OutputStream out = response.getOutputStream()
    //set up byte array
    byte[] content = yourS3Object.getBytes()


    response.setContentLength(content.size())
    response.addHeader("Content-disposition", "attachment; filename=${yourS3Object.fileName}")
    response.addHeader("Content-type", "video/quicktime")
    out.write(content)
    out.close()

That should do the trick.