Ruby on rails 分析Rails参数时出错

我正在尝试将URL作为参数传递到我的Rails应用程序：

Started DELETE "/images/0?s3_filepath=https://s3.amazonaws.com/buildinprogresstest/uploads/blllbyq5k3qinl4l/uploads_2F9qggxxf5dvlsor-667601c8f38d8d41af07828accbf3147_2F2014-07-13%252B18.44.29.jpg" for 127.0.0.1 at 2016-08-31 11:52:09 -0400

参数中未正确分析s3_文件路径：

 Parameters: {"s3_filepath"=>"https://s3.amazonaws.com/buildinprogresstest/uploads/blllbyq5k3qinl4l/uploads_2F9qggxxf5dvlsor-667601c8f38d8d41af07828accbf3147_2F2014-07-13%2B18.44.29.jpg", "id"=>"0"}

如果仔细看，文件名包含序列“252B18”，但参数似乎删除了数字“52”

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我不知道为什么会这样。有什么想法吗？

通常，参数是在rails端进行url编码和解码的25被解码成%，这就是为什么它会从你的输入中删除。您需要正确编码此url

在Ruby中，您可以使用CGI.escape

CGI.escape "https://s3.amazonaws.com/buildinprogresstest/uploads/blllbyq5k3qinl4l/uploads_2F9qggxxf5dvlsor-667601c8f38d8d41af07828accbf3147_2F2014-07-13%252B18.44.29.jpg"
=> "https%3A%2F%2Fs3.amazonaws.com%2Fbuildinprogresstest%2Fuploads%2Fblllbyq5k3qinl4l%2Fuploads_2F9qggxxf5dvlsor-667601c8f38d8d41af07828accbf3147_2F2014-07-13%25252B18.44.29.jpg"

如果您通过javascript发送此请求，则可以在javascript中使用转义函数

escape("https%3A%2F%2Fs3.amazonaws.com%2Fbuildinprogresstest%2Fuploads%2Fblllbyq5k3qinl4l%2Fuploads_2F9qggxxf5dvlsor-667601c8f38d8d41af07828accbf3147_2F2014-07-13%25252B18.44.29.jpg")