Roo 电子表格上传 OLE2 签名无效 [英] Roo spreadsheet uploading OLE2 signature is invalid

问题描述

是的，所以我检查了 Roo.伟大的宝石和所有，并有一个没有模型的非常基本的应用程序.和基本控制器、类和视图，我似乎无法上传电子表格，因为我收到 OLE2 签名无效 错误.我有以下基本设置

Right so I've checked out Roo. Great gem and all and have a really basic application that doesn't have no models. And basic controller, class and view and I can't seem to get a spreadsheet to upload as I am getting OLE2 signature is invalid error. I have the following basic setup

控制器

class SpreadsheetServiceController < ApplicationController

  def new
  end

  def create    
    parser = SpreadsheetTagService.new(params[:spreadsheet][:file])

    respond_to do |format|
      format.all {render :json => 'Done'}
    end
  end
end 

电子表格标签服务

 class SpreadsheetTagService 
  include Roo

  def initialize(uploaded_file)
    @tmp_destination = "#{Rails.root}/tmp/tag-import.xls"
    @file_path = save_file_to_tmp(uploaded_file)
    @file = File.new(@file_path)
    read_file(@file)
  end 

  private 
    def save_file_to_tmp(uploaded_file)
      FileUtils.mv(uploaded_file.tempfile.path, @tmp_destination )
      @tmp_destination
    end

    def read_file(file)
      @spreadsheet = open_spreadsheet(file)
      @spreadsheet.each_with_pagename do |name,sheet|    
        Rails.logger.debug( sheet )
      end    
    end

    def open_spreadsheet(file)
      case File.extname(file.path)
        when ".csv" then Csv.new(file.path, nil, :ignore)
        when ".xls" then Excel.new(file.path, nil, :ignore)
        when ".xlsx" then Excelx.new(file.path, nil, :ignore)
        else raise "Unknown file type: #{file.original_filename}"
      end
    end

end  

查看

<%= form_tag spreadsheetupload_url, multipart: true do %>
  <%= file_field_tag :file %>
  <%= submit_tag "Import" %>
<% end %>

推荐答案

代替 .xls 格式使用 .xlsx 格式.然后它会工作.

Instead of .xls format use .xlsx format.then it will work.

对我来说这是有效的.

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