我在使用设计1.1.9和使用注销链接的rails 3.1.3时遇到了问题。
<%= link_to 'sign out', destroy_user_session_path, :method => :delete %>
经过一段时间的研究后，我唯一的答案就是人们错过了：method =＆gt; ：在退出链接中删除，因为您可以看到我的链接中有该方法。我也试过
<%= link_to('sign out', destroy_user_session_path, :method => :delete) %>
rake routes
new_user_session GET /users/sign_in(.:format) {:action=>"new", :controller=>"devise/sessions"}
user_session POST /users/sign_in(.:format) {:action=>"create", :controller=>"devise/sessions"}
destroy_user_session GET /users/sign_out(.:format) {:action=>"destroy", :controller=>"devise/sessions"}
user_password POST /users/password(.:format) {:action=>"create", :controller=>"devise/passwords"}
new_user_password GET /users/password/new(.:format) {:action=>"new", :controller=>"devise/passwords"}
edit_user_password GET /users/password/edit(.:format) {:action=>"edit", :controller=>"devise/passwords"}
PUT /users/password(.:format) {:action=>"update", :controller=>"devise/passwords"}
user_registration POST /users(.:format) {:action=>"create", :controller=>"devise/registrations"}
new_user_registration GET /users/sign_up(.:format) {:action=>"new", :controller=>"devise/registrations"}
edit_user_registration GET /users/edit(.:format) {:action=>"edit", :controller=>"devise/registrations"}
PUT /users(.:format) {:action=>"update", :controller=>"devise/registrations"}
DELETE /users(.:format) {:action=>"destroy", :controller=>"devise/registrations"}
article_comments GET /articles/:article_id/comments(.:format) {:action=>"index", :controller=>"comments"}
POST /articles/:article_id/comments(.:format) {:action=>"create", :controller=>"comments"}
new_article_comment GET /articles/:article_id/comments/new(.:format) {:action=>"new", :controller=>"comments"}
edit_article_comment GET /articles/:article_id/comments/:id/edit(.:format) {:action=>"edit", :controller=>"comments"}
article_comment GET /articles/:article_id/comments/:id(.:format) {:action=>"show", :controller=>"comments"}
PUT /articles/:article_id/comments/:id(.:format) {:action=>"update", :controller=>"comments"}
DELETE /articles/:article_id/comments/:id(.:format) {:action=>"destroy", :controller=>"comments"}
articles GET /articles(.:format) {:action=>"index", :controller=>"articles"}
POST /articles(.:format) {:action=>"create", :controller=>"articles"}
new_article GET /articles/new(.:format) {:action=>"new", :controller=>"articles"}
edit_article GET /articles/:id/edit(.:format) {:action=>"edit", :controller=>"articles"}
article GET /articles/:id(.:format) {:action=>"show", :controller=>"articles"}
PUT /articles/:id(.:format) {:action=>"update", :controller=>"articles"}
DELETE /articles/:id(.:format) {:action=>"destroy", :controller=>"articles"}
root / {:action=>"index", :controller=>"articles"}
非常感谢任何帮助
更新
以下答案建议改变 config.sign_out_via =：get to：delete但我在以下devise.rb文件中没有该行
# Use this hook to configure devise mailer, warden hooks and so forth. The first
# four configuration values can also be set straight in your models.
Devise.setup do |config|
# ==> Mailer Configuration
# Configure the e-mail address which will be shown in DeviseMailer.
config.mailer_sender = "please-change-me@config-initializers-devise.com"
# Configure the class responsible to send e-mails.
# config.mailer = "Devise::Mailer"
# ==> ORM configuration
# Load and configure the ORM. Supports :active_record (default) and
# :mongoid (bson_ext recommended) by default. Other ORMs may be
# available as additional gems.
require 'devise/orm/active_record'
# ==> Configuration for any authentication mechanism
# Configure which keys are used when authenticating an user. By default is
# just :email. You can configure it to use [:username, :subdomain], so for
# authenticating an user, both parameters are required. Remember that those
# parameters are used only when authenticating and not when retrieving from
# session. If you need permissions, you should implement that in a before filter.
config.authentication_keys = [ :email ]
# Tell if authentication through request.params is enabled. True by default.
config.params_authenticatable = true
# Tell if authentication through HTTP Basic Auth is enabled. False by default.
# config.http_authenticatable = false
# Set this to true to use Basic Auth for AJAX requests. True by default.
# config.http_authenticatable_on_xhr = true
# The realm used in Http Basic Authentication
# config.http_authentication_realm = "Application"
# ==> Configuration for :database_authenticatable
# For bcrypt, this is the cost for hashing the password and defaults to 10. If
# using other encryptors, it sets how many times you want the password re-encrypted.
config.stretches = 10
# Define which will be the encryption algorithm. Devise also supports encryptors
# from others authentication tools as :clearance_sha1, :authlogic_sha512 (then
# you should set stretches above to 20 for default behavior) and :restful_authentication_sha1
# (then you should set stretches to 10, and copy REST_AUTH_SITE_KEY to pepper)
config.encryptor = :bcrypt
# Setup a pepper to generate the encrypted password.
config.pepper = "hidden"
# ==> Configuration for :confirmable
# The time you want to give your user to confirm his account. During this time
# he will be able to access your application without confirming. Default is nil.
# When confirm_within is zero, the user won't be able to sign in without confirming.
# You can use this to let your user access some features of your application
# without confirming the account, but blocking it after a certain period
# (ie 2 days).
# config.confirm_within = 2.days
# ==> Configuration for :rememberable
# The time the user will be remembered without asking for credentials again.
# config.remember_for = 2.weeks
# If true, a valid remember token can be re-used between multiple browsers.
# config.remember_across_browsers = true
# If true, extends the user's remember period when remembered via cookie.
# config.extend_remember_period = false
# ==> Configuration for :validatable
# Range for password length
config.password_length = 6..20
# Regex to use to validate the email address
config.email_regexp = /\A([\w\.%\+\-]+)@([\w\-]+\.)+([\w]{2,})\z/i
# ==> Configuration for :timeoutable
# The time you want to timeout the user session without activity. After this
# time the user will be asked for credentials again.
# config.timeout_in = 10.minutes
# ==> Configuration for :lockable
# Defines which strategy will be used to lock an account.
# :failed_attempts = Locks an account after a number of failed attempts to sign in.
# :none = No lock strategy. You should handle locking by yourself.
# config.lock_strategy = :failed_attempts
# Defines which strategy will be used to unlock an account.
# :email = Sends an unlock link to the user email
# :time = Re-enables login after a certain amount of time (see :unlock_in below)
# :both = Enables both strategies
# :none = No unlock strategy. You should handle unlocking by yourself.
# config.unlock_strategy = :both
# Number of authentication tries before locking an account if lock_strategy
# is failed attempts.
# config.maximum_attempts = 20
# Time interval to unlock the account if :time is enabled as unlock_strategy.
# config.unlock_in = 1.hour
# ==> Configuration for :token_authenticatable
# Defines name of the authentication token params key
# config.token_authentication_key = :auth_token
# ==> Scopes configuration
# Turn scoped views on. Before rendering "sessions/new", it will first check for
# "users/sessions/new". It's turned off by default because it's slower if you
# are using only default views.
config.scoped_views = true
# Configure the default scope given to Warden. By default it's the first
# devise role declared in your routes.
# config.default_scope = :user
# Configure sign_out behavior.
# By default sign_out is scoped (i.e. /users/sign_out affects only :user scope).
# In case of sign_out_all_scopes set to true any logout action will sign out all active scopes.
config.sign_out_all_scopes = true
# ==> Navigation configuration
# Lists the formats that should be treated as navigational. Formats like
# :html, should redirect to the sign in page when the user does not have
# access, but formats like :xml or :json, should return 401.
# If you have any extra navigational formats, like :iphone or :mobile, you
# should add them to the navigational formats lists. Default is [:html]
# config.navigational_formats = [:html, :iphone]
# ==> Warden configuration
# If you want to use other strategies, that are not (yet) supported by Devise,
# you can configure them inside the config.warden block. The example below
# allows you to setup OAuth, using http://github.com/roman/warden_oauth
#
# config.warden do |manager|
# manager.oauth(:twitter) do |twitter|
# twitter.consumer_secret = <YOUR CONSUMER SECRET>
# twitter.consumer_key = <YOUR CONSUMER KEY>
# twitter.options :site => 'http://twitter.com'
# end
# manager.default_strategies(:scope => :user).unshift :twitter_oauth
# end
end
并添加行
config.sign_out_via = :get
使服务器无法启动 再次感谢
答案 0 :(得分：3)
路由输出中的users/sign_out路由有一个GET请求，而不是DELETE。
我怀疑你的config/initializers/devise.rb：
config.sign_out_via = :get
默认情况下，此选项设置为:delete。
答案 1 :(得分：0)
出于多种原因，您不应在devise.rb文件中更改config.sign_out_via =：get to：delete。
1）这会将删除操作更改为Get而不是Delete for 2
2）您在此处撰写的每个测试都将反映为具有Get请求的删除。这意味着行动的结果是不正确的。
3）你拥有的代码是正确的，这正是我所拥有的。
作为一名初学者，让我来看看我认为的问题。当我遇到这个错误时，我确认：“你确定吗？”在erb的最后。我改变了erb标签内部的位置并且工作正常。我认为这可能与路由没有注册方法:: delete。
答案 2 :(得分：0)
> rails generate devise:views
devise_for :users