在Ubuntu上运行ASP.NET 5的Ubuntu上使用MVC 6调整图像大小 [英] Resize images with MVC 6 on Ubuntu running ASP.NET 5 on Mono

问题描述

如何在Ubuntu上运行的带有MONO的ASP.NET 5，MVC 6，DNX451中重新调整图像大小?

我无法解决此问题，因为我使用的标准组件(例如ImageProcessor和ImageResizer.NET)似乎无法正常工作.

解决方案

我目前正在DNX 4.5.1(ASP.NET 5)和MVC 6中开发一个网站，该网站旨在托管在Ubuntu服务器上. /p>

最近，我遇到了调整图像大小的问题，因此我不得不开箱考虑.就我而言，没有必要在开发环境中调整图像大小，因此我专注于如何在即将到来的产品环境中处理图像.

解决方案是使用ImageMagick，这是一个非常好的Linux小软件.

这是我解决的方法:

if (_hostingEnvironment.IsProduction())
{
        var command = "-c 'convert " + filePath + " -resize 960x960 -quality 70 " + filePath + "'";

        Process proc = new System.Diagnostics.Process();
        proc.StartInfo.FileName = "/bin/bash";
        proc.StartInfo.Arguments = command;
        proc.StartInfo.UseShellExecute = false;
        proc.StartInfo.RedirectStandardOutput = false;
        proc.Start();
}

因此，可以通过将文件上传到某个文件夹(在我的情况下为临时文件夹)，然后执行convert命令来工作.我用项目中需要的转换参数覆盖了相同的文件.如果您想要更大的图像或更好的质量，可以使用更多的参数.

这是一个不错的解决方案，但是正如我说的，我只专注于在Ubuntu(这将是我的生产环境)上进行这项工作，因此将其封装在if子句中，检查我是否使用prod. ，但是在Windows环境中也可能采用类似的方法，但是我宁愿使用一些标准组件来使之工作.

How can I re-size an image in ASP.NET 5, MVC 6, DNX451, with MONO, running on Ubuntu?

I have been unable to work this out, as the standard components that I have used such as ImageProcessor and ImageResizer.NET seem not to be working.

解决方案

I am currently developing a website in DNX 4.5.1 (ASP.NET 5) and MVC 6, which is meant to be hosted on an Ubuntu server.

Recently I ran in to issues with re-sizing images, so I had to think out of the box. In my case, it was not necessary, to re-size images on my development environment, so I focused on how to handle this on my upcoming prod environment.

The solution was to use ImageMagick, which is a very nice little piece of software for Linux.

This is how I solved it:

if (_hostingEnvironment.IsProduction())
{
        var command = "-c 'convert " + filePath + " -resize 960x960 -quality 70 " + filePath + "'";

        Process proc = new System.Diagnostics.Process();
        proc.StartInfo.FileName = "/bin/bash";
        proc.StartInfo.Arguments = command;
        proc.StartInfo.UseShellExecute = false;
        proc.StartInfo.RedirectStandardOutput = false;
        proc.Start();
}

So this works by uploading the file to some folder, in my case a temporary folder, then I execute the convert command. I overwrite the same file with the conversion parameters that I need in my project. You can use more parameters, if you want larger images or better quality.

This is a nice solution, but as I said, I have only focused on making this work on Ubuntu, which will be my production environment, and therefor it is encapsulated in an if clause, checking whether I am on prod or not, but a similar approach could probably also be possible in Windows environments, but I would rather go for some standard component to make that work.

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