Magento2插件开发：一个简单的 Hello World Code

app/code/Mageplaza/HelloWorldCopy

app/code/Mageplaza/HelloWorld/etc/module.xmlCopy

<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Module/etc/module.xsd">
    <module name="Mageplaza_HelloWorld" setup_version="1.0.0">
    </module>
</config>Copy

app/code/Mageplaza/HelloWorld/registration.phpCopy

<?php
\Magento\Framework\Component\ComponentRegistrar::register(
    \Magento\Framework\Component\ComponentRegistrar::MODULE,
    'Mageplaza_HelloWorld',
    __DIR__
);Copy

php bin/magento module:statusCopy

php bin/magento module:enable Mageplaza_HelloWorldCopy

app/etc/config.phpCopy

...
  'Mageplaza_HelloWorld' => 1,
  ...Copy

php bin/magento setup:upgradeCopy

php bin/magento setup:static-content:deployCopy

http://mageplaza.com/index.php/frontname/controller/actionCopy

app/code/Mageplaza/HelloWorld/etc/frontend/routes.xmlCopy

<?xml version="1.0" ?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:App/etc/routes.xsd">
    <router id="standard">
        <route frontName="helloworld" id="helloworld">
            <module name="Mageplaza_HelloWorld"/>
        </route>
    </router>
</config>Copy

http://<yourhost.com>/helloworld/*Copy

app/code/Mageplaza/HelloWorld/Controller/Index/Test.phpCopy

<?php
namespace Mageplaza\HelloWorld\Controller\Index;

class Test extends \Magento\Framework\App\Action\Action
{
    protected $_pageFactory;

    public function __construct(
        \Magento\Framework\App\Action\Context $context,
        \Magento\Framework\View\Result\PageFactory $pageFactory)
    {
        $this->_pageFactory = $pageFactory;
        return parent::__construct($context);
    }

    public function execute()
    {
        echo "Hello World";
        exit;
    }
}Copy

http://<yourhost.com>/helloworld/index/testCopy