调整

app/services/export_shixun_report_service.rb

@@ -33,8 +33,8 @@ class ExportShixunReportService
     base_css = %w(app/templates/shared/main.css app/templates/shixun_work/shixun_work.css app/templates/shared/codemirror.css)
     base_css.each { |css| kit.stylesheets << Rails.root.join(css) }
 
-    file_name = "#{Rails.root}/files/archiveZip/#{filename}"
+    file = Tempfile.new(filename)
-    kit.to_pdf(file_name)
+    kit.to_pdf(file.path)
     file
   end