Question

我正在尝试在RoR中创建一个非常简单的Hello，World程序，但当我去查看网址http://localhost:3000/say/hello时，我收到错误消息No route matches: "say/hello"

当我启动rails服务器时，我收到了这条消息，其中散布着警告：

=> Booting WEBrick
=> Rails 3.0.9 application starting in development on http://0.0.0.0:3000
=> Call with -d to detach
=> Ctrl-C to shutdown server
[2011-06-20 20:02:44] INFO  WEBrick 1.3.1
[2011-06-20 20:02:44] INFO  ruby 1.9.2 (2011-02-18) [i686-linux]
[2011-06-20 20:02:44] WARN  TCPServer Error: Address already in use - bind(2)
Exiting
/home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `initialize': Address already in use - bind(2) (Errno::EADDRINUSE)
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `new'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in `block in create_listeners'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:70:in `each'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:70:in `create_listeners'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:74:in `listen'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:62:in `initialize'
  from /home/eyedea/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/httpserver.rb:24:in `initialize'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/handler/webrick.rb:10:in `new'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/handler/webrick.rb:10:in `run'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/rack-1.2.3/lib/rack/server.rb:217:in `start'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands/server.rb:65:in `start'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:30:in `block in <top (required)>'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:27:in `tap'
  from /home/eyedea/.rvm/gems/ruby-1.9.2-p180/gems/railties-3.0.9/lib/rails/commands.rb:27:in `<top (required)>'
  from script/rails:6:in `require'
  from script/rails:6:in `<main>'

我开始：rails生成控制器说再见列出路线得到“说/你好”

另外：我遇到的问题可能与此有关。当我在其中一个明确列为现有的文件中写一些基本的html时，我得到了这个：

我写这个：

~/work/demo$ /app/views/say/hello.html.erb

获取此错误消息：

bash: /app/views/say/hello.html.erb: No such file or directory

这里发生了什么？我直接从使用Rails的Agile Development获得这些指令，这很简单。我不明白发生了什么。

Answer 1

您在rails启动时遇到的错误表明您的计算机上已经有一台服务器在端口3000上运行（显然服务器不知道“说/你好”路由）。关闭那个，然后再试一次。

Answer 2

[2011-06-20 20:02:44] WARN  TCPServer Error: Address already in use - bind(2)

您已经在服务器应该运行的端口上运行服务器（或其他东西）。因此，您认为正在运行的代码（您说有相关路线）实际上没有运行。一旦你关闭了另一个进程（可能是以前运行的rails服务器？），你可以启动正确的进程并确保它实际上有这条路由。

Answer 3

第二个错误是因为从bash路径/进入根目录。尝试：

cat app/views/say/hello.html.erb

Answer 4

我遇到了类似的问题。在我的情况下，$ rails server命令后，我无法在终端本身使用ctrl-C关闭服务器。当我在终端中按ctrl-C时没有任何反应。

当我在另一个终端上重新打开项目并再次运行时，我收到以下消息：

System-Product-Name：〜/ testapp $ rails s =＆GT;启动WEBrick =＆GT; Rails 3.1.0.rc4应用程序从http://0.0.0.0:3000开始开发 =＆GT;用-d调用分离 =＆GT; Ctrl-C关闭服务器 [2011-06-30 16:41:23] INFO WEBrick 1.3.1 [2011-06-30 16:41:23] INFO ruby 1.9.2（2011-02-18）[x86_64-linux] [2011-06-30 16:41:23] WARN TCPServer错误：地址已在使用中 - bind（2）退出 /.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:73:in initialize': Address already in use - bind(2) (Errno::EADDRINUSE) ls.rb:73:in new' 来自bubble / .rvm / rubies / ruby-1.9.2-p180 / lib / ruby / 1.9.1 / webrick / utils.rb:73:in block in create_listeners' from bubble/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/utils.rb:70:in each' 来自bubble / .rvm / rubies / ruby-1.9.2-p180 / lib / ruby / 1.9.1 / webrick / utils.rb:70:in create_listeners' from bubble/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/server.rb:74:in listen' 来自bubble / .rvm / rubies / ruby-1.9.2-p180 / lib / ruby / 1.9.1 / webrick / server.rb:62:in initialize' from bubble/.rvm/rubies/ruby-1.9.2-p180/lib/ruby/1.9.1/webrick/httpserver.rb:24:in initialize' 来自bubble /.rvm/gems/ruby-1.9.2-p180@rails31/gems/rack-1.3.0/lib/rack/handler/webrick.rb:10:in new' from bubble/.rvm/gems/ruby-1.9.2-p180@rails31/gems/rack-1.3.0/lib/rack/handler/webrick.rb:10:in run' 来自bubble /.rvm/gems/ruby-1.9.2-p180@rails31/gems/rack-1.3.0/lib/rack/server.rb:265:in start' from bubble/.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc4/lib/rails/commands/server.rb:70:in start' 来自bubble /.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc4/lib/rails/commands.rb:54:in block in <top (required)>' from bubble/.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc4/lib/rails/commands.rb:49:in点击' 来自bubble /.rvm/gems/ruby-1.9.2-p180@rails31/gems/railties-3.1.0.rc4/lib/rails/commands.rb:49:in <top (required)>' from script/rails:6:in require' 来自script / rails：6：in''

本质上我必须每次都从系统监视器中删除进程。这可以治愈吗？

Answer 5

在Mac上，在终端中键入以下内容：

lsof | grep IPv4

或

我认为在Linux中

lsof|grep 3000。

找到以'ruby'开头的lione并记下旁边的数字。

假设数字是1234.在终端输入以下内容：

kill -9 1234

你应该是对的。记得用control-c退出WEBrick！

当路线存在时，无路线匹配“说/你好”

5 个答案: