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rubyonrails:奇怪的样式表问题

webrick css ruby-on-rails

Zaz Volodymyr Null · 技术社区 · 14 年前

直接地 访问我的CSS,它工作正常。但其他时候,它不起作用,我收到这个服务器输出:

[2010-08-01 12:49:37] ERROR NoMethodError: private method `gsub!' called for #<Class:0x7f6d0639ad80>
    /usr/lib/ruby/1.8/webrick/htmlutils.rb:16:in `escape'
    /usr/lib/ruby/1.8/webrick/httpresponse.rb:232:in `set_error'
    /var/www/rails-blog/vendor/rails/railties/lib/webrick_server.rb:94:in `handle_file'
    /var/www/rails-blog/vendor/rails/railties/lib/webrick_server.rb:73:in `service'
    /usr/lib/ruby/1.8/webrick/httpserver.rb:104:in `service'
    /usr/lib/ruby/1.8/webrick/httpserver.rb:65:in `run'
    /usr/lib/ruby/1.8/webrick/server.rb:173:in `start_thread'
    /usr/lib/ruby/1.8/webrick/server.rb:162:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:162:in `start_thread'
    /usr/lib/ruby/1.8/webrick/server.rb:95:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:92:in `each'
    /usr/lib/ruby/1.8/webrick/server.rb:92:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:23:in `start'
    /usr/lib/ruby/1.8/webrick/server.rb:82:in `start'
    /var/www/rails-blog/vendor/rails/railties/lib/webrick_server.rb:60:in `dispatch'
    /var/www/rails-blog/vendor/rails/railties/lib/commands/servers/webrick.rb:66
    /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
    /var/www/rails-blog/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
    /var/www/rails-blog/vendor/rails/activesupport/lib/active_support/dependencies.rb:521:in `new_constants_in'
    /var/www/rails-blog/vendor/rails/activesupport/lib/active_support/dependencies.rb:153:in `require'
    /var/www/rails-blog/vendor/rails/railties/lib/commands/server.rb:49
    /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require'
    /usr/lib/ruby/1.8/rubygems/custom_require.rb:31:in `require'
    script/server:3
127.0.0.1 - - [01/Aug/2010:12:49:37 BST] "GET /stylesheets/scaffold.css HTTP/1.1" 500 343
- -> /stylesheets/scaffold.css?1280662371

我用来包含样式表的代码是 <%= stylesheet_link_tag 'scaffold' %> . 我重新启动了Ruby服务器,但没有效果。是什么导致了这个问题?

这是从阅读中得来的 one of the official guides .

1 回复 | 直到 14 年前

Zaz Volodymyr Null 14 年前

http://www.ruby-forum.com/topic/206225

On 10.06.2010 03:19, Michael Pitman (mcp) posted :

继续使用Webrick,而不是切换到混血儿,你也可以只需编辑第15行 lib/ruby/1.8/webrick/htmlutils.rb到阅读
  str = string ? string.to_s.dup : ""
异常正在传递给 HTMLUtils::将escape作为类,而不是 HTTPServlet::DefaultFileHandler)。因为只有始终安全地转换输入去串。

我怀疑性能惩罚可能会阻止像这样的解决办法标准的ruby库,但它是一个简单的解决方法。

webrick的DispatchServlet方法 gem),然后调用res.set\u error err.message必须是字符串,或者我想,即使是明确的信息不管怎样,它都被丢弃了未修改。