Question

我对rails非常陌生，并试图设置一个非常简单的测试站点。

我已使用rails new命令创建了新的rails应用目录，但无法设置服务器以在浏览器中查看该页面。

（以下是我在尝试rails server时收到的消息）

MacBook-Pro:documents AT$ rails server
Usage:
  rails new APP_PATH [options]

Options:
  -r, [--ruby=PATH]                                      # Path to the Ruby binary of your choice
                                                         # Default: /System/Library/Frameworks/Ruby.framework/Versions/2.0/usr/bin/ruby
  -m, [--template=TEMPLATE]                              # Path to some application template (can be a filesystem path or URL)
      [--skip-gemfile], [--no-skip-gemfile]              # Don't create a Gemfile
  -B, [--skip-bundle], [--no-skip-bundle]                # Don't run bundle install
  -G, [--skip-git], [--no-skip-git]                      # Skip .gitignore file
      [--skip-keeps], [--no-skip-keeps]                  # Skip source control .keep files
  -O, [--skip-active-record], [--no-skip-active-record]  # Skip Active Record files
  -V, [--skip-action-view], [--no-skip-action-view]      # Skip Action View files
  -S, [--skip-sprockets], [--no-skip-sprockets]          # Skip Sprockets files
      [--skip-spring], [--no-skip-spring]                # Don't install Spring application preloader
  -d, [--database=DATABASE]                              # Preconfigure for selected database (options: mysql/oracle/postgresql/sqlite3/frontbase/ibm_db/sqlserver/jdbcmysql/jdbcsqlite3/jdbcpostgresql/jdbc)
                                                         # Default: sqlite3
  -j, [--javascript=JAVASCRIPT]                          # Preconfigure for selected JavaScript library
                                                         # Default: jquery
  -J, [--skip-javascript], [--no-skip-javascript]        # Skip JavaScript files
      [--dev], [--no-dev]                                # Setup the application with Gemfile pointing to your Rails checkout
      [--edge], [--no-edge]                              # Setup the application with Gemfile pointing to Rails repository
  -T, [--skip-test-unit], [--no-skip-test-unit]          # Skip Test::Unit files
      [--rc=RC]                                          # Path to file containing extra configuration options for rails command
      [--no-rc], [--no-no-rc]                            # Skip loading of extra configuration options from .railsrc file

Runtime options:
  -f, [--force]                    # Overwrite files that already exist
  -p, [--pretend], [--no-pretend]  # Run but do not make any changes
  -q, [--quiet], [--no-quiet]      # Suppress status output
  -s, [--skip], [--no-skip]        # Skip files that already exist

Rails options:
  -h, [--help], [--no-help]        # Show this help message and quit
  -v, [--version], [--no-version]  # Show Rails version number and quit

Description:
    The 'rails new' command creates a new Rails application with a default
    directory structure and configuration at the path you specify.

    You can specify extra command-line arguments to be used every time
    'rails new' runs in the .railsrc configuration file in your home directory.

    Note that the arguments specified in the .railsrc file don't affect the
    defaults values shown above in this help message.

Example:
    rails new ~/Code/Ruby/weblog

    This generates a skeletal Rails installation in ~/Code/Ruby/weblog.
    See the README in the newly created application to get going.

Answer 1

将当前目录更改为项目目录并执行rails server命令。

示例：

$rails new demo_app
$cd demo_app
$rails s

如果您在rails项目目录中，

rails server命令将启动服务器。当您执行rails new demo_app时，它会创建一个名为demo_app的目录，其中包含您的新rails项目。在您的情况下，rails server无效，因为您不在demo_app目录中。

Answer 2

确保您的bin文件夹不为空..如果它是

，您可能需要运行它

rake rails：update：bin

Answer 3

您不在rails app目录中。

由于您已有项目，请转到其目录。

要更改目录，请执行以下操作：

cd path/to/project/rails_project_name

Answer 4

要设置服务器以在浏览器中查看页面，您需要位于rails项目目录中。因此，只需将目录更改为刚创建的项目目录，然后使用cd命令

cd path_of_rails_project

现在使用rails服务器

有关详情，请参阅http://guides.rubyonrails.org/getting_started.html

Answer 5

除非您在项目目录中，否则无法启动Rails服务器。

假设您正在开发myapp项目。您必须在命令行上移动到该项目目录，然后运行Rails服务器。

示例：假设您尚未创建Rails应用程序：

$> rails new myapp
$> cd myapp

现在使用以下两个命令之一启动Rails服务器：

$> rails server

或：

$> rails s

'rails server'命令无法在终端中运行

5 个答案: