Laravel 4中的包与CodeIgniter中的库相同吗？

I used to use CodeIgniter. In CodeIgniter whenever I had to create my own classes, I used to create a class in the library folder and used it as a library. In Laravel they use packages. In the documentation they also talk about creating your own packages. Are packages in Laravel 4 same as libraries in the CodeIgniter?

What seems to be common now is to put custom classes, exceptions, validation, etc. into a folder that is named in correspondence to your application.

For example:

| laravel
|    -- AppName/
|       -- Exceptions
|       -- Repositories
|       -- Validation
|       -- CustomClasses (your custom class name)
|    -- controllers
|    -- models
|    -- views

To include in composer, the easiest way is to include the classmap

composer.json

"autoload": {
        "classmap": [
            "app/commands",
            "app/controllers",
            "app/models",
            "app/database/migrations",
            "app/database/seeds",
            "app/tests/TestCase.php",
            "app/AppName"
        ]
    }

If you would like to use psr-4 auto loading instead, there is a great free video on Laracasts to get you started https://laracasts.com/lessons/psr-4-autoloading

Also, if you're a Laracasts member, the Where Do I Put This video is exactly what you're looking for with this question. https://laracasts.com/lessons/where-do-i-put-this

Laravel's packages are third-party libraries from Composer.

Your own classes that don't fit in a controller/model can go wherever you want as long as you tell the autoloader where to find them. We use app/libraries and the PSR namespacing conventions. If you do so, you need to add app/libraries to the composer.json in the autoload-->classmap array.