更改HTTP请求中的非ASCII字符

问题描述

我必须拨打http呼叫外部服务。通过发送地址，返回纬度和经度坐标。问题是，如果该地址是俄语或法语，则会出现类似以下错误：

URI must be ascii only "http://nominatim.openstreetmap.org/?format=json&addressdetails=1&q={Barrage de G\u00E9nissiat,Rue marcel Paul,Injoux,Franclens,Nantua,Ain,Auvergne-Rh\u00F4ne-Alpes,Francia metropolitana,74910,Francia}&format=json" 

我的代码是：

url = "http://nominatim.openstreetmap.org/?format=json&addressdetails=1&q={"+ address_search +"}&format=json";
response = Faraday.get url

变量address_search是：

 Barrage de Génissiat,Auvergne-Rhône-Alpes,Francia

法拉第只是发出HTTP请求的工具，这并不奇怪。我必须操纵URL。你有什么建议吗？

编辑：

  print Rails.logger.info "body " + response.body
    print Rails.logger.info response.status
    print Rails.logger.info response.env.url

这是输出

body []
200
https://nominatim.openstreetmap.org/?addressdetails=1&format=json&q=Barrage+de+G%C3%A9nissiat%2C+Rue+marcel+Paul%2C+Injoux%2C+Franclens%2C+Nantua%2C+Ain%2C+Auvergne-Rh%C3%B4ne-Alpes%2C+Francia+metropolitana%2C+74910%2C+Francia
  Rendering homes/index.html.erb within layouts/application

解决方法

查询应进行编码，您可以手动进行：

query = 'Barrage de Génissiat,Rue Marcel Paul,Injoux,Franclens,Nantua,Ain,Auvergne-Rhône-Alpes,Francia metropolitana,74910,Francia'
address_search = URI.escape(query)
url = "https://nominatim.openstreetmap.org/?format=json&addressdetails=1&q=#{address_search}&format=json"
response = Faraday.get(url)

或者将工作留给法拉第：

query = 'Barrage de Génissiat,Francia'
connection = Faraday.new('https://nominatim.openstreetmap.org')
response = connection.get do |request|
  request.params = { format: 'json',addressdetails: 1,q: query }
end

以下是回复：

=> #<Faraday::Response:0x0000556afc452060
 @env=
  #<struct Faraday::Env
   method=:get,body=
    "[{\"place_id\":104161692,\"licence\":\"Data \xC2\xA9 OpenStreetMap contributors,ODbL 1.0. https://osm.org/copyright\",\"osm_type\":\"way\",\"osm_id\":80667335,\"boundingbox\":[\"46.0516289\",\"46.0531641\",\"5.8112371\",\"5.81
4139\"],\"lat\":\"46.0523765\",\"lon\":\"5.812744291298651\",\"display_name\":\"Barrage de G\xC3\xA9nissiat,Auvergne-Rh\xC3\xB4ne-Alpes,France m\xC3\xA9tropolitaine,France\",\"class\":\"tourism\",\"type\":\"attraction\",\"importance\":1.7983764706069638,\"icon\":\"https://nominatim.openstreetmap.org/images/mapicons/poi_point_of_interest.p.20.png\",\"address\":{\"tourism\":\"Barrage de G\xC3\xA9nissiat\
",\"road\":\"Rue Marcel Paul\",\"suburb\":\"Injoux\",\"village\":\"Franclens\",\"municipality\":\"Nantua\",\"county\":\"Ain\",\"state\":\"Auvergne-Rh\xC3\xB4ne-Alpes\",\"country\":\"France\",\"postcode\":\"74910\",\"country_code\":\
"fr\"}}]",url=
    #<URI::HTTPS https://nominatim.openstreetmap.org/?addressdetails=1&format=json&q=Barrage+de+G%C3%A9nissiat%2C+Rue+Marcel+Paul%2C+Injoux%2C+Franclens%2C+Nantua%2C+Ain%2C+Auvergne-Rh%C3%B4ne-Alpes%2C+Francia+metropolitana%2C+74910%2C+Francia>,request=#<struct Faraday::RequestOptions params_encoder=nil,proxy=nil,bind=nil,timeout=nil,open_timeout=nil,write_timeout=nil,boundary=nil,oauth=nil,context=nil>,request_headers={"User-Agent"=>"Faraday v0.17.3"},ssl=
    #<struct Faraday::SSLOptions
     verify=true,ca_file=nil,ca_path=nil,verify_mode=nil,cert_store=nil,client_cert=nil,client_key=nil,certificate=nil,private_key=nil,verify_depth=nil,version=nil,min_version=nil,max_version=nil>,parallel_manager=nil,params=nil,response=#<Faraday::Response:0x0000556afc452060 ...>,response_headers=
    {"server"=>"nginx","date"=>"Thu,15 Oct 2020 19:42:53 GMT","content-type"=>"application/json; charset=UTF-8","transfer-encoding"=>"chunked","connection"=>"close","access-control-allow-origin"=>"*","access-control-allow-methods"=>"OPTIONS,GET"},status=200,reason_phrase="OK">,@on_complete_callbacks=[]>

请确保您使用https模式，否则，您将获得带有重定向的响应。

,

我使用以下代码：

  query = "Barrage de Génissiat,Francia"
  connection = Faraday.new('https://nominatim.openstreetmap.org')


    response = connection.get do |request|
      request.params = { format: 'json',q: query }
    end


    print Rails.logger.info response.body

然后我收到[]。