Ruby on rails 避免错误：缺少此请求格式和变量的模板
我的ruby on rails应用程序的端点位于Ruby on rails 避免错误：缺少此请求格式和变量的模板,ruby-on-rails,Ruby On Rails,我的ruby on rails应用程序的端点位于http://localhost:3000/searches/new。当我在那里导航时，一切都很好。但是当我导航到http://localhost:3000/searches/new.json，它会引发此错误，导致http-500:SearchesController#new缺少此请求格式和变体的模板。request.formats:[“application/json”]request.variant:[] 我怎样才能让它停止那样做？我希望它像其
http://localhost:3000/searches/newhttp://localhost:3000/searches/new.jsonSearchesController#new缺少此请求格式和变体的模板。request.formats:[“application/json”]request.variant:[]真奇怪。当我将“.json”附加到路径的末尾时，一些端点返回406。其他500人。下面是后者的堆栈跟踪
I, [2020-06-16T06:10:06.410101 #2816] INFO -- : Processing by WelcomeController#talent as JSON
D, [2020-06-16T06:10:06.426042 #2816] DEBUG -- : User Load (1.1ms) SELECT "users".* FROM "users" WHERE "users"."id" = $1 ORDER BY "users"."id" ASC LIMIT $2 [["id", 81], ["LIMIT", 1]]
D, [2020-06-16T06:10:06.434018 #2816] DEBUG -- : Private::Conversation Load (0.9ms) SELECT "private_conversations".* FROM "private_conversations" WHERE ("private_conversations"."recipient_id" = $1 OR "private_conversations"."sender_id" = $2) [["recipient_id", 81], ["sender_id", 81]]
D, [2020-06-16T06:10:06.435528 #2816] DEBUG -- : Group::Conversation Load (0.7ms) SELECT "group_conversations".* FROM "group_conversations" INNER JOIN "group_conversations_users" ON "group_conversations"."id" = "group_conversations_users"."conversation_id" WHERE "group_conversations_users"."user_id" = $1 [["user_id", 81]]
D, [2020-06-16T06:10:06.437254 #2816] DEBUG -- : (0.6ms) SELECT "group_conversations"."id" FROM "group_conversations" INNER JOIN "group_conversations_users" ON "group_conversations"."id" = "group_conversations_users"."conversation_id" WHERE "group_conversations_users"."user_id" = $1 [["user_id", 81]]
D, [2020-06-16T06:10:06.439379 #2816] DEBUG -- : CACHE (0.1ms) SELECT "group_conversations"."id" FROM "group_conversations" INNER JOIN "group_conversations_users" ON "group_conversations"."id" = "group_conversations_users"."conversation_id" WHERE "group_conversations_users"."user_id" = $1 [["user_id", 81]]
E, [2020-06-16T06:10:06.448074 #2816] ERROR -- : Traceback (most recent call last):
96: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/puma-4.3.3/lib/puma/thread_pool.rb:134:in `block in spawn_thread'
95: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/puma-4.3.3/lib/puma/server.rb:328:in `block in run'
94: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/puma-4.3.3/lib/puma/server.rb:472:in `process_client'
93: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/puma-4.3.3/lib/puma/server.rb:682:in `handle_request'
92: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/puma-4.3.3/lib/puma/configuration.rb:228:in `call'
91: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/railties-5.2.4.2/lib/rails/engine.rb:524:in `call'
90: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-cors-1.1.1/lib/rack/cors.rb:100:in `call'
89: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-mini-profiler-2.0.1/lib/mini_profiler/profiler.rb:312:in `call'
88: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/sendfile.rb:110:in `call'
87: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/static.rb:127:in `call'
86: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
85: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/cache/strategy/local_cache_middleware.rb:29:in `call'
84: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/runtime.rb:22:in `call'
83: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/method_override.rb:24:in `call'
82: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/request_id.rb:27:in `call'
81: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/request_store-1.5.0/lib/request_store/middleware.rb:19:in `call'
80: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/remote_ip.rb:81:in `call'
79: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/railties-5.2.4.2/lib/rails/rack/logger.rb:26:in `call'
78: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/tagged_logging.rb:71:in `tagged'
77: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/tagged_logging.rb:28:in `tagged'
76: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/tagged_logging.rb:71:in `block in tagged'
75: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/railties-5.2.4.2/lib/rails/rack/logger.rb:26:in `block in call'
74: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/railties-5.2.4.2/lib/rails/rack/logger.rb:38:in `call_app'
73: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/show_exceptions.rb:33:in `call'
72: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/debug_exceptions.rb:61:in `call'
71: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/better_errors-2.7.0/lib/better_errors/middleware.rb:57:in `call'
70: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/better_errors-2.7.0/lib/better_errors/middleware.rb:79:in `better_errors_call'
69: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/better_errors-2.7.0/lib/better_errors/middleware.rb:84:in `protected_app_call'
68: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/executor.rb:14:in `call'
67: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/callbacks.rb:26:in `call'
66: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/callbacks.rb:98:in `run_callbacks'
65: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/callbacks.rb:28:in `block in call'
64: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activerecord-5.2.4.2/lib/active_record/migration.rb:559:in `call'
63: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/middleware/cookies.rb:670:in `call'
62: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/session/abstract/id.rb:260:in `call'
61: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/session/abstract/id.rb:266:in `context'
60: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/http/content_security_policy.rb:18:in `call'
59: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/head.rb:12:in `call'
58: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/conditional_get.rb:27:in `call'
57: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/etag.rb:27:in `call'
56: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-2.2.2/lib/rack/tempfile_reaper.rb:15:in `call'
55: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/warden-1.2.8/lib/warden/manager.rb:34:in `call'
54: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/warden-1.2.8/lib/warden/manager.rb:34:in `catch'
53: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/warden-1.2.8/lib/warden/manager.rb:36:in `block in call'
52: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/remotipart-1.4.4/lib/remotipart/middleware.rb:32:in `call'
51: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/omniauth-1.9.1/lib/omniauth/strategy.rb:169:in `call'
50: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/omniauth-1.9.1/lib/omniauth/strategy.rb:192:in `call!'
49: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/rack-pjax-1.1.0/lib/rack/pjax.rb:12:in `call'
48: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/routing/route_set.rb:840:in `call'
47: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/journey/router.rb:35:in `serve'
46: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/journey/router.rb:35:in `each'
45: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/journey/router.rb:52:in `block in serve'
44: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/routing/route_set.rb:34:in `serve'
43: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_dispatch/routing/route_set.rb:52:in `dispatch'
42: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal.rb:252:in `dispatch'
41: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal.rb:191:in `dispatch'
40: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/rendering.rb:32:in `process'
39: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/abstract_controller/base.rb:134:in `process'
38: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activerecord-5.2.4.2/lib/active_record/railties/controller_runtime.rb:24:in `process_action'
37: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/params_wrapper.rb:256:in `process_action'
36: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:32:in `process_action'
35: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/notifications.rb:168:in `instrument'
34: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/notifications/instrumenter.rb:23:in `instrument'
33: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/notifications.rb:168:in `block in instrument'
32: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:34:in `block in process_action'
31: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/rescue.rb:22:in `process_action'
30: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/abstract_controller/callbacks.rb:41:in `process_action'
29: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/callbacks.rb:132:in `run_callbacks'
28: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/abstract_controller/callbacks.rb:42:in `block in process_action'
27: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/rendering.rb:30:in `process_action'
26: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/abstract_controller/base.rb:194:in `process_action'
25: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/basic_implicit_render.rb:6:in `send_action'
24: from /ch/app/controllers/welcome_controller.rb:13:in `talent'
23: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/remotipart-1.4.4/lib/remotipart/render_overrides.rb:23:in `render'
22: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:45:in `render'
21: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/sunspot_rails-2.5.0/lib/sunspot/rails/railties/controller_runtime.rb:15:in `cleanup_view_runtime'
20: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activerecord-5.2.4.2/lib/active_record/railties/controller_runtime.rb:31:in `cleanup_view_runtime'
19: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:87:in `cleanup_view_runtime'
18: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:46:in `block in render'
17: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/core_ext/benchmark.rb:14:in `ms'
16: from /Users/makedon/.rvm/rubies/ruby-2.6.5/lib/ruby/2.6.0/benchmark.rb:308:in `realtime'
15: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/activesupport-5.2.4.2/lib/active_support/core_ext/benchmark.rb:14:in `block in ms'
14: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/instrumentation.rb:46:in `block (2 levels) in render'
13: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/rendering.rb:36:in `render'
12: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/abstract_controller/rendering.rb:25:in `render'
11: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/renderers.rb:142:in `render_to_body'
10: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/rendering.rb:52:in `render_to_body'
9: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/rendering.rb:84:in `render_to_body'
8: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionpack-5.2.4.2/lib/action_controller/metal/streaming.rb:219:in `_render_template'
7: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/rendering.rb:103:in `_render_template'
6: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/renderer/renderer.rb:25:in `render'
5: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/renderer/renderer.rb:44:in `render_template'
4: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/renderer/template_renderer.rb:10:in `render'
3: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/renderer/template_renderer.rb:40:in `determine_template'
2: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/renderer/abstract_renderer.rb:20:in `find_template'
1: from /Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/lookup_context.rb:116:in `find'
/Users/makedon/.rvm/gems/ruby-2.6.5/gems/actionview-5.2.4.2/lib/action_view/path_set.rb:48:in `find': Missing template welcome/talent, application/talent with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :html, :builder, :ruby, :coffee, :haml]}. Searched in: (ActionView::MissingTemplate)
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/bh-1.3.6/lib/bh/views"
* "/ch/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/twitter-bootstrap-rails-4.0.0/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/rails_admin_mydash-0.1.8/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/bundler/gems/rails_admin-782d4ddac486/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/mailboxer-0.15.1/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/kaminari-core-1.2.0/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/devise_invitable-1.7.5/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/devise-4.7.1/app/views"
I, [2020-06-16T06:10:06.449514 #2816] INFO -- : Completed 500 Internal Server Error in 39ms (ActiveRecord: 3.3ms)
F, [2020-06-16T06:10:06.461776 #2816] FATAL -- :
ActionView::MissingTemplate - Missing template welcome/talent, application/talent with {:locale=>[:en], :formats=>[:json], :variants=>[], :handlers=>[:raw, :erb, :html, :builder, :ruby, :coffee, :haml]}. Searched in:
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/bh-1.3.6/lib/bh/views"
* "/ch/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/twitter-bootstrap-rails-4.0.0/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/rails_admin_mydash-0.1.8/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/bundler/gems/rails_admin-782d4ddac486/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/mailboxer-0.15.1/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/kaminari-core-1.2.0/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/devise_invitable-1.7.5/app/views"
* "/Users/makedon/.rvm/gems/ruby-2.6.5/gems/devise-4.7.1/app/views"
:
app/controllers/welcome_controller.rb:13:in `talent'
I, [2020-06-16T06:10:06.652543 #2816] INFO -- : Started POST "/__better_errors/377e20f2e19f9287/variables" for 127.0.0.1 at 2020-06-16 06:10:06 -0700
default\u render我认为当前版本的rails返回一个406状态码——这是一个HTTP规范，适用于缺少格式的情况。规范还描述了应该使用accepts头请求格式——我认为URL结尾是rails的假设 这看起来像是welcome_控制器的天赋方法中的实际500错误，而不是在缺少模板时希望更改core rails的行为。我怀疑是某个gem导致了500错误（我首先要怪设备；这就是我的json响应出现问题的原因），但需要查看控制器（可能还有更多）才能进一步评论 同时，以实用主义的名义，而不是挖掘第三方的宝藏 默认情况下，rails将尝试在请求时使用json格式响应任何操作，并使用json模板文件的存在作为如何响应的指南。这样，您只需创建一个json模板，“它就可以正常工作”。但是，您可以明确告诉方法仅响应html：
def talent
...
respond_to :html
end
class WelcomeController < ApplicationController
respond_to :html
def talent
# Your code
end
end
class WelcomeController另请参阅，以了解在您的操作中更多地使用
respond_to我找到了一个有点骇客的解决方案，但这是结束无聊错误警报的最快方法。我刚刚为所有缺少的模板创建了包含文本“不支持”的文件 你能为你的控制器发布代码吗？有一种简单的方法，基本上比从Rails的胆量重写一个大的旧方法更简单吗？此应用程序返回500而不是204。为什么？当请求的资源不存在时，为什么我不想要500？这是关于rails团队在将其实现为406状态时的想法的一些讨论（以及rails如何将其打破为500，一度打破为204状态）。您可能会发现rails版本升级会给您一个更可接受的406响应。您不需要重写太多。如果从应用程序控制器中复制默认的渲染方法，然后将
raise ActionController:：UnknownFormatresponse\u to:html