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1. Getting Started--Installation 安装Laravel  

2017-03-04 17:37:53|  分类: Laravel |  标签: |举报 |字号 订阅

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Installation
Are you a visual learner? Laracasts provides a free, thorough introduction to Laravel for newcomers to the framework. It's a great place to start your journey.
Server Requirements
The Laravel framework has a few system requirements. Of course, all of these requirements are satisfied by the Laravel Homestead virtual machine, so it's highly recommended that you use Homestead as your local Laravel development environment.
However, if you are not using Homestead, you will need to make sure your server meets the following requirements:
  • PHP >= 5.6.4
  • OpenSSL PHP Extension
  • PDO PHP Extension
  • Mbstring PHP Extension
  • Tokenizer PHP Extension
  • XML PHP Extension
Installing Laravel
Laravel utilizes Composer to manage its dependencies. So, before using Laravel, make sure you have Composer installed on your machine.
Via Laravel Installer
1. 运行composer命令:
First, download the Laravel installer using Composer:
composer global require "laravel/installer"

2. $HOME/.composer/vendor/bin 加入path路径。
Make sure to place the $HOME/.composer/vendor/bin directory (or the equivalent directory for your OS) in your $PATH so the laravel executable can be located by your system.

3. 创建laravel blog
Once installed, the laravel new command will create a fresh Laravel installation in the directory you specify. For instance, laravel new blog will create a directory named blog containing a fresh Laravel installation with all of Laravel's dependencies already installed:
laravel new blog

或者用 composer命令创建项目
Via Composer Create-Project

Alternatively, you may also install Laravel by issuing the Composer create-project command in your terminal:
composer create-project --prefer-dist laravel/laravel blog

4. 本地开发服务
Local Development Server
If you have PHP installed locally and you would like to use PHP's built-in development server to serve your application, you may use the serve Artisan command. This command will start a development server at http://localhost:8000:
php artisan serve
Of course, more robust local development options are available via Homestead and Valet.

配置
Configuration

Public Directory
After installing Laravel, you should configure your web server's document / web root to be the public directory. The index.php in this directory serves as the front controller for all HTTP requests entering your application.

Configuration Files
All of the configuration files for the Laravel framework are stored in the config directory. Each option is documented, so feel free to look through the files and get familiar with the options available to you.

设置目录权限
Directory Permissions
After installing Laravel, you may need to configure some permissions. Directories within the storage and the bootstrap/cache directories should be writable by your web server or Laravel will not run. If you are using the Homestead virtual machine, these permissions should already be set.
Application Key
The next thing you should do after installing Laravel is set your application key to a random string. If you installed Laravel via Composer or the Laravel installer, this key has already been set for you by the php artisan key:generate command.
Typically, this string should be 32 characters long. The key can be set in the .env environment file. If you have not renamed the .env.example file to .env, you should do that now. If the application key is not set, your user sessions and other encrypted data will not be secure!

附加配置
Additional Configuration
Laravel needs almost no other configuration out of the box. You are free to get started developing! However, you may wish to review the config/app.php file and its documentation. It contains several options such as timezone and locale that you may wish to change according to your application.
You may also want to configure a few additional components of Laravel, such as:

web服务器配置:
Pretty URLs
Apache
Laravel includes a public/.htaccess file that is used to provide URLs without the index.php front controller in the path. Before serving Laravel with Apache, be sure to enable the mod_rewritemodule so the .htaccess file will be honored by the server.
If the .htaccess file that ships with Laravel does not work with your Apache installation, try this alternative:
Options +FollowSymLinks RewriteEngine On RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{REQUEST_FILENAME} !-f RewriteRule ^ index.php [L]
Nginx
If you are using Nginx, the following directive in your site configuration will direct all requests to the index.php front controller:
location / { try_files $uri $uri/ /index.php?$query_string; }
Of course, when using Homestead or Valet, pretty URLs will be automatically configured.
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