我正在学习 ruby on Rails。在构建一个小应用程序时，服务器已断开连接，并且不会再次连接。
使用:
rails server
我在应用程序目录中。(双重、三次检查...)。
连接到服务器一段时间工作正常，然后就停止了。
我正在使用Mysql。
Rails 服务器在我正在开发的其他应用程序上启动得非常好。
这些是我的版本:
root@R://# ruby --version
ruby 2.2.2p95 (2015-04-13 revision 50295) [x86_64-linux]
root@R://# rails -v
Rails 4.2.1
和mysql版本:
+-------------------------+-------------------------+
| Variable_name | Value |
+-------------------------+-------------------------+
| innodb_version | 5.5.43 |
| protocol_version | 10 |
| slave_type_conversions | |
| version | 5.5.43-0ubuntu0.14.04.1 |
| version_comment | (Ubuntu) |
| version_compile_machine | x86_64 |
| version_compile_os | debian-linux-gnu |
+-------------------------+-------------------------+
这是输出
rails server
root@R://home/ruby/Projects/SempleApp# rails server
=> Booting WEBrick
=> Rails 4.2.1 application starting in development on http://localhost:3000
=> Run Rails 服务器-h for more startup options
=> Ctrl-C to shutdown server
Exiting
我的database.yml 文件设置正常，自从服务器连接以来我没有更改它。
我重新启动了Mysql服务。重新启动终端并重新启动整个计算机..并且此应用程序仍然无法连接到服务器其他应用程序可以..
我陷入困境......无法在任何地方找到答案。帮助...
PS- 这是我在这里的第一个问题。希望我提供了正确的信息。
谢谢
完整错误:
root@ruby-man://home/ruby/Projects/TweetrWork# rails server
=> Booting WEBrick
=> Rails 4.2.1 application starting in development on <a href="http://localhost:3000" rel="noreferrer noopener nofollow">http://localhost:3000</a>
=> Run <code>rails server -h</code> for more startup options
=> Ctrl-C to shutdown server
Exiting
/home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in <code>load': /home/ruby/Projects/TweetrWork/config/routes.rb:60: syntax error, unexpected end-of-input, expecting keyword_end (SyntaxError)
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in</code>block in load'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:240:in <code>load_dependency'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/dependencies.rb:268:in</code>load'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in <code>block in load_paths'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in</code>each'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:40:in <code>load_paths'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:16:in</code>reload!'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:26:in <code>block in updater'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/file_update_checker.rb:75:in</code>call'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/activesupport-4.2.1/lib/active_support/file_update_checker.rb:75:in <code>execute'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:27:in</code>updater'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/routes_reloader.rb:7:in <code>execute_if_updated'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application/finisher.rb:69:in</code>block in '
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/initializable.rb:30:in <code>instance_exec'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/initializable.rb:30:in</code>run'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/initializable.rb:55:in <code>block in run_initializers'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:226:in</code>block in tsort_each'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:348:in <code>block (2 levels) in each_strongly_connected_component'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:429:in</code>each_strongly_connected_component_from'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:347:in <code>block in each_strongly_connected_component'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in</code>each'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in <code>call'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:345:in</code>each_strongly_connected_component'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:224:in <code>tsort_each'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/tsort.rb:203:in</code>tsort_each'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/initializable.rb:54:in <code>run_initializers'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/application.rb:352:in</code>initialize!'
from /home/ruby/Projects/TweetrWork/config/environment.rb:5:in <code><top (required)>'
from /home/ruby/Projects/TweetrWork/config.ru:3:in</code>require'
from /home/ruby/Projects/TweetrWork/config.ru:3:in <code>block in <main>'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in</code>instance_eval'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:55:in <code>initialize'
from /home/ruby/Projects/TweetrWork/config.ru:in</code>new'
from /home/ruby/Projects/TweetrWork/config.ru:in <code><main>'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in</code>eval'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:49:in <code>new_from_string'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/builder.rb:40:in</code>parse_file'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:299:in <code>build_app_and_options_from_config'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:208:in</code>app'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/server.rb:61:in <code>app'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/rack-1.6.4/lib/rack/server.rb:336:in</code>wrapped_app'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/server.rb:139:in <code>log_to_stdout'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/server.rb:78:in</code>start'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:80:in <code>block in server'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in</code>tap'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:75:in <code>server'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands/commands_tasks.rb:39:in</code>run_command!'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/railties-4.2.1/lib/rails/commands.rb:17:in <code><top (required)>'
from /home/ruby/Projects/TweetrWork/bin/rails:8:in</code>require'
from /home/ruby/Projects/TweetrWork/bin/rails:8:in <code><top (required)>'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/client/rails.rb:28:in</code>load'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/client/rails.rb:28:in <code>call'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/client/command.rb:7:in</code>call'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/client.rb:26:in <code>run'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/bin/spring:48:in</code>'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/binstub.rb:11:in <code>load'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/spring-1.3.6/lib/spring/binstub.rb:11:in</code>'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in <code>require'
from /home/ruby/.rbenv/versions/2.2.2/lib/ruby/2.2.0/rubygems/core_ext/kernel_require.rb:54:in</code>require'
from /home/ruby/Projects/TweetrWork/bin/spring:13:in <code><top (required)>'
from bin/rails:3:in</code>load'
from bin/rails:3:in `'
最佳答案
答案在这里:
4.2.1/lib/active_support/dependencies.rb:268:in load': /home/ruby/Projects/TweetrWork/config/routes.rb:60: syntax error, unexpected end-of-input, **expecting keyword_end (SyntaxError)**
这是您的代码中的拼写错误。正如 Prashant4224 所写，在 /home/ruby/Projects/TweetrWork/config/routes.rb 中的正确位置添加 end 应该可以解决问题
关于mysql - Rails 服务器突然停止与 Mysql 一起工作并且无法连接，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/31515786/