ruby -- 进阶学习(九)定制错误跳转404和500

在开发阶段,如果发生错误时,都会出现错误提示页面,比如:RecordNotFound之类的,虽然这些错误方便开发进行debug,但是等产品上线时,如果还是出现这些页面,对于用户来说是很不友好的。

所以必须定制错误跳转到404和500

下面示范在development下开发的404和500跳转:

首先在 config/environment/development.rb中,找到下面这句代码,将其设为false

config.consider_all_requests_local  = false    # rails 4.0

或者

config.action_controller.consider_all_requests_local = false  # rails 3.0

接着修改route.rb, 在route.rb中增加下面这句:(注意:放到最后一行)

 # make sure this rule is the last one
get '*path' => proc { |env| Rails.env.development? ? (raise ActionController::RoutingError, %{No route matches "#{env["PATH_INFO"]}"}) : ApplicationController.action(:render_not_found).call(env) }

然后在application_controller.rb中增加下面代码:

 1  def self.rescue_errors
 2     rescue_from Exception, :with => :render_error
 3     rescue_from RuntimeError, :with => :render_error
 4     rescue_from ActiveRecord::RecordNotFound, :with => :render_not_found
 5     rescue_from ActionController::RoutingError, :with => :render_not_found
 6     rescue_from ActionController::UnknownController, :with => :render_not_found
 7     rescue_from ActionController::UnknownAction, :with => :render_not_found
 8   end
 9 
10   rescue_errors unless Rails.env.development?
11 
12   def render_not_found(exception = nil)
13     render :file => "/public/404.html", :status => 404
14   end
15 
16   def render_error(exception = nil)
17     render :file => "/public/500.html", :status => 500
18   end

这样就完成404和500的定制跳转啦! over! @_@!!

注:production环境下的404和500跳转已经自动配置了。

参考链接:

http://www.perfectline.ee/blog/custom-dynamic-error-pages-in-ruby-on-rails

http://chen-miao.iteye.com/blog/1456355

http://www.iteye.com/topic/191531

转载于:https://www.cnblogs.com/lmei/p/3266170.html

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