1.点击公共贴吧，成功新建讨论区、新建帖子，成功上传附件 2.点击查看附件的图标按钮，返回异常"\xAF" followed by "<" on GBK 3.点击删除附件的图标按钮，返回异常No route matches {:action=>"show", :controller=>"projects", :id=>nil}