将本地文件的内容读入 Rails 中的变量

我所要做的就是从一个本地文件中获取所有内容，并将其存储在一个变量中。怎么做到的？

File.read(@icon.full_filename).each {|l| r += l}

在 PHP 中，我只使用了 file_get_contents。

ruby-on-rails
ruby

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data = File.read("/path/to/file")

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最佳答案

Answering my own question here... turns out it's a Windows only quirk that happens when reading binary files (in my case a JPEG) that requires an additional flag in the open or File.open function call. I revised it to open("/path/to/file", 'rb') {|io| a = a + io.read} and all was fine.

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I think you should consider using IO.binread("/path/to/file") if you have a recent ruby interpreter (i.e. >= 1.9.2)

You could find IO class documentation here http://www.ruby-doc.org/core-2.1.2/IO.html