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我的 ruby​​ 应用程序有一些问题。我使用：Ruby = 2.0 Rails = 3.2

当我尝试注销时，出现如下错误。

AbstractController::ActionNotFound - 找不到 UserSessionsController 的操作“显示”：actionpack (3.2.17) lib/abstract_controller/base.rb:116:in process' actionpack (3.2.17) lib/abstract_controller/rendering.rb:45:inprocess' actionpack (3.2.17) lib/action_controller/metal.rb： 203:in dispatch' actionpack (3.2.17) lib/action_controller/metal/rack_delegation.rb:14:indispatch' actionpack (3.2.17) lib/action_controller/metal.rb:246:in block in action' actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:73:indispatch' actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:36:in call' journey (1.0.4) lib/journey/router.rb:68:inblock in call' Journey (1.0 .4) lib/journey/router.rb:56:in call' actionpack (3.2.17) lib/action_dispatch/routing/route_set.rb:608:incall' bullet (4.1.4) lib/bullet/rack.rb:8:in call' hirefire-resource (0.1.2) lib/hirefire/middleware.rb:27:incall' newrelic_rpm (3.6.2.96) lib/new_relic/rack/error_collector.rb :12:in call' newrelic_rpm (3.6.2.96) lib/new_relic/rack/agent_hooks.rb:18:incall' newrelic_rpm (3.6.2.96) lib/new_relic/rack/browser_monitoring.rb:16:in call' newrelic_rpm (3.6.2.96) lib/new_relic/rack/developer_mode.rb:28:incall' request_store (1.0.5) lib/request_store/middleware.rb:9：在call' actionpack (3.2.17) lib/action_dispatch/middleware/best_standards_support.rb:17:incall' rack (1.4.5) lib/rack/etag.rb:23:in call' rack (1.4.5) lib/rack/conditionalget.rb:25:incall' actionpack (3.2.17) lib/action_dispatch/middleware/head.rb:14:in call' actionpack (3.2.17) lib/action_dispatch/middleware/params_parser.rb:21:incall' actionpack (3.2.17) lib/ action_dispatch/middleware/flash.rb:242:in call' rack (1.4.5) lib/rack/session/abstract/id.rb:210:incontext' rack (1.4.5) lib/rack/session/abstract/id.rb:205:in call' actionpack (3.2.17) lib/action_dispatch/middleware/cookies.rb:341:incall' activerecord (3.2.17) lib/active_record/query_cache.rb: 64:in call' activerecord (3.2.17) lib/active_record/connection_adapters/abstract/connection_pool.rb:479:incall' actionpack (3.2.17) lib/action_dispatch/middleware/callbacks.rb:28:in block in call' activesupport (3.2.17) lib/active_support/callbacks.rb:405:inrun _4032778647788681780_ call _3401891405258349156__callbacks' activesupport (3.2.17) lib/active_support/callbacks.rb:405:in __run_callback' activesupport (3.2.17) lib/active_support/callbacks.rb:385:in_run_call_callbacks' active 3.2.17) lib/active_support/callbacks.rb:81:inrun_callbacks' actionpack (3.2.17) lib/action_dispatch/middleware/callbacks.rb:27:incall' actionpack (3.2.17) lib/action_dispatch/middleware/reloader.rb:65:in call' actionpack (3.2.17) lib/action_dispatch/middleware/remote_ip.rb:31:incall' better_errors (0.9.0) lib/better_errors/middleware.rb:84:in protected_app_call' better_errors (0.9.0) lib/better_errors/middleware.rb:79:inbetter_errors_call' better_errors (0.9.0) lib/ better_errors/middleware.rb:56:in call' actionpack (3.2.17) lib/action_dispatch/middleware/debug_exceptions.rb:16:incall' actionpack (3.2.17) lib/action_dispatch/middleware/show_exceptions.rb:56:in call' railties (3.2.17) lib/rails/rack/logger.rb:32:incall_app' railties (3.2.17) lib/rails/rack/logger.rb:16:在block in call' activesupport (3.2.17) lib/active_support/tagged_logging.rb:22:in标记的'railties (3.2.17) lib/rails/rack/logger.rb:16:in call' actionpack (3.2.17) lib/action_dispatch/middleware/request_id.rb:22:incall' rack (1.4.5) lib/rack/methodoverride.rb:21:in call' rack-contrib (1.1.0) lib/rack/contrib/runtime.rb:18:incall' activesupport (3.2.17) lib /active_support/cache/strategy/local_cache.rb:72:in call' rack (1.4.5) lib/rack/lock.rb:15:incall' actionpack (3.2.17) lib/action_dispatch/middleware/static.rb:63:in call' railties (3.2.17) lib/rails/engine.rb:484:incall' railties (3.2.17) lib/rails/application.RB：231：在call' rack (1.4.5) lib/rack/content_length.rb:14:in调用' railties (3.2.17) lib/rails/rack/log_tailer.rb:17:in call' rack (1.4.5) lib/rack/handler/webrick.rb:59:inservice' /usr/local/rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/webrick/ httpserver.rb:138:in service' /usr/local/rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/webrick/httpserver.rb:94:inrun' /usr/local/rvm/rubies/ruby-2.0.0-p451/lib/ruby/2.0.0/webrick/server.rb:295:in `block in start_thread'

这是我的路线.rb：

root to: 'user_session#new'
match '/user_sessions/new' => redirect('/user_session/new')
enter code here
controller :user_sessions do
get    'user_session/new'     => :new,  as: 'new_user_session'
get    'user_session/edit'    => :edit, as: 'edit_user_session'
get    'user_session'         => :show, as: 'user_session'
put    'user_session'         => :update
delete 'user_session'         => :destroy
post   'user_session'         => :create
end

并将其放入 user_session_controller.rb

def destroy
current_user_session.destroy
redirect_to new_user_session_url
end
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