坏 URI Ruby on Rails：是因为长吗？答案

【问题标题】：Bad URI Ruby on Rails: is it because long?坏 URI Ruby on Rails：是因为长吗？
【发布时间】：2016-07-05 01:20:29
【问题描述】：

所以我有一个可以正常工作的网站，在 URL 中编码了一些 URI。

但是，当我尝试将 URL 传递给我的 chrome 浏览器时：

http://somewhere:3000/find/someOne?utf8=%E2%9C%93&search=someThing&choicen=no&querys={%22peopleName%22%3A%22%22%2C%22peopleGroup%22%3A%22%22%2C%22place%22%3A%22%22%2C%22pip%22%3A%22%22%2C%22hw%22%3A%22%22%2C%22somerock%22%3A%22%22%2C%22rocksomerock%22%3A%22%22%2C%22diedAt%22%3A%222016-01-01%20-%202016-12-31%22%2C%22borndAt%22%3A%22%22%2C%22taxRate%22%3A%22%22}

-- 它在浏览器中引发错误：

Bad Request

bad URI `/find/someOne?utf8=%E2%9C%93&search=someThing&choicen=no&querys={%22peopleName%22%3A%22%22%2C%22peopleGroup%22%3A%22%22%2C%22place%22%3A%22%22%2C%22pip%22%3A%22%22%2C%22hw%22%3A%22%22%2C%22somerock%22%3A%22%22%2C%22rocksomerock%22%3A%22%22%2C%22diedAt%22%3A%222016-01-01%20-%202016-12-31%22%2C%22borndAt%22%3A%22%22%2C%22taxRate%22%3A%22%22}'.

WEBrick/1.3.1 (Ruby/1.9.3/2014-11-13) at somewhere.com:3000

还在 Rails 控制台中显示 [2016-07-04 18:11:31] ERROR bad URI

版本：

rails3
Ruby 1.9.3

知道如何让它工作吗？是因为URI中的{和}还是太长了？

【问题讨论】：

我会先尝试对{/} 进行uuencoding，看看是否能解决问题。
请编辑您的问题以包含您的代码。另外，请澄清您的问题。 “当我尝试粘贴 URL 时”是什么意思？粘贴到哪里？

标签： html ruby-on-rails ruby http uri

【解决方案1】：

根据传入请求解析控制器中的路径，使用Rack::Utils#parse_nested_query，参见：http://www.rubydoc.info/github/rack/rack/master/Rack/Utils.parse_nested_query

# config/routes.rb

get '/find/someOne/*str' => 'find#someOne'


# app/controllers/find_controller.rb

class FindController < ApplicationController
  def someOne
    custom_params = Rack::Utils.parse_nested_query(request.env['ORIGINAL_FULLPATH'])
    querys_hash = JSON.parse(custom_params["querys"])
  end
end

控制台示例：

$ bundle exec rails c 在进程 31944 中通过 Spring 预加载器运行加载开发环境（Rails 5.0.0） irb(main):001:0> custom_params = Rack::Utils.parse_nested_query "utf8=%E2%9C%93&search=someThing&choicen=no&querys={%22peopleName%22%3A%22%22%2C%22peopleGroup%22%3A %22%22%2C%22place%22%3A%22%22%2C%22pip%22%3A%22%22%2C%22hw%22%3A%22%22%2C%22somerock%22%3A%22 %22%2C%22rocksomerock%22%3A%22%22%2C%22diedAt%22%3A%222016-01-01%20-%202016-12-31%22%2C%22borndAt%22%3A%22% 22%2C%22taxRate%22%3A%22%22}" => {"utf8"=>"✓", "search"=>"someThing", "choicen"=>"no", "querys"=>"{\"peopleName\":\"\",\" peopleGroup\":\"\",\"place\":\"\",\"pip\":\"\",\"hw\":\"\",\"somerock\":\" \",\"rocksomerock\":\"\",\"diedAt\":\"2016-01-01 - 2016-12-31\",\"borndAt\":\"\",\"taxRate \":\"\"}"} irb(main):002:0> querys_hash = JSON.parse custom_params["querys"] => {"peopleName"=>"", "peopleGroup"=>"", "place"=>"", "pip"=>"", "hw"=>"", "somerock"=>"" , "rocksomerock"=>"", "diedAt"=>"2016-01-01 - 2016-12-31", "borndAt"=>"", "taxRate"=>""}

【讨论】：