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Laravel 5 下载文件
实践出真理
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简述Laravel 5 下载文件

Jun 20, 2016 pm 12:26 PM

Laravel 5 下载文件

laravel 下载文件提供了很多方法,可以使用 Stroage。laravel 5 自己带的文件系统是非常强大的,提供了很多方法,并且还支持远程存储等等。也可以直接使用 Response,laravel 5 的 Response也是基于 Syfmony的 Symfony\Component\HttpFoundation \Response的进一步封装。

实践出真理

昨天做了一个下载文件的功能,原本我以为使用 Stroage就要以完成所有的操作了,查看了官网文档发现,下载文件它最终还是得使用 Response的 download方法,既然这样那何不直接使用 Response的 download方法呢?当然前提是我已经知道文件的绝对路径或相对路径。

Storage默认的路径是在 /storage/app目录,如果不对路径进行设置的话,使用 Storage里的方法获取文件或保存文件都会在这个目录下。

可我保存的文件并不在这个目录,如果有绝对路径,那最简单的方法就是直接使用 download方法就行了。

如果是远程ftp的话就得使用 Storage,选设置好ftp服务然后 get下来然后传入 Response::download()方法中,使用方法与下面类似。

return response()->download($resource['path'] . $resource['name'], $resource['original_name']);
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先看看 download这个方法:

 /**  * Create a new file download response.  *   * @param  \SplFileInfo|string  $file  * @param  string  $name  * @param  array  $headers  * @param  string|null  $disposition  * @return \Symfony\Component\HttpFoundation\BinaryFileResponse  */  
public function download($file, $name = null, array $headers = [], $disposition = 'attachment');
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  • 第一个是文件的绝对路径或文件(必传) \SplFileInfo 或 string类型
  • 第二个是下载后保存的文件名(选传),如果不传的话下载后保存的文件名将与在服务器保存的文件名一致 string类型
  • 第二个是header(选传) array 类型
  • 第三个是描述?这个我也没试过,不造是啥

就这样,下载文件就这么简单,先简单写点吧,laravel的教程网上实在是太多了,其实我并不太想写laravel的东西,因为并不怎么喜欢这个框架,虽然很方便。

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