di.xml 指定或重写Proxy
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<!-- for = 受影响的原始类或接口 -->
<!-- type = 所依赖的Proxy -->
<preference for="Magento\Contact\Controller\Index\Post" type="Infinity\Contact\Controller\Index\Post" />
</config>ps: 重写 block 时如涉及读取组件模板，可能也需要把 phtml 复制到当前 module 中
di.xml 指定或重写某个类中构造函数入参所依赖Proxy
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<!-- name = 受影响的原始类 -->
<type name="[Vendor]\[Module]\Xxx">
<arguments>
<!-- name = __construct函数的参数名 -->
<!-- text() = 指定所依赖的Proxy -->
<argument name="arg1" xsi:type="object">[Vendor]\[Module]\Xxxxx\Proxy</argument>
</arguments>
</type>
</config>di.xml 声明plugin，用于修改目标类若干个method的入参或者返回结果
<?xml version="1.0"?>
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:ObjectManager/etc/config.xsd">
<!-- name = 需要执行插件的类。包含空间名 -->
<type name="Magento\Customer\Model\Resource\Visitor">
<!-- name = plugin name, 全局唯一 -->
<!-- sortOrder = 运行顺序 -->
<!-- disabled = 是否关闭plugin -->
<plugin name="catalogLog"
type="Magento\Catalog\Model\Plugin\Log"
sortOrder="1"
disabled="true" />
</type>
</config>http://devdocs.magento.com/gu…
layout
<page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
<body>
<!-- 通过layout可以修改title -->
<referenceBlock name="page.main.title">
<action method="setPageTitle">
<argument translate="true" name="title" xsi:type="string">Page Title</argument>
</action>
</referenceBlock>
<!-- container将声明容器，block必须放在container内 -->
<container name="div.sidebar.additional" htmlTag="div" htmlClass="sidebar sidebar-additional" after="div.sidebar.main">
<container name="sidebar.additional" as="sidebar_additional" label="Sidebar Additional"/>
</container>
<!-- referenceContainer对已存在容器进行改造 -->
<referenceContainer name="sidebar.additional">
<!-- block将声明区块 -->
<block class="Magento\Framework\View\Element\Template" name="catalog.compare.sidebar"
template="Magento_Catalog::product/compare/sidebar.phtml">
<!-- action将直接调用block class中的方法 -->
<action method="setText">
<argument name="text" translate="true" xsi:type="string">Text</argument>
</action>
<!-- arguments是block class的属性列表，从于从XML传递参数到class -->
<arguments>
<!-- cache生命周期 -->
<argument name="cache_lifetime" xsi:type="number">84600</argument>
</arguments>
</block>
<!-- referenceBlock对已存在block进行改造，例如删除它，或修改arguments -->
<referenceBlock name="catalog.compare.sidebar" remove="true" />
<!-- move移动元素 -->
<move element="name.of.an.element" destination="name.of.destination.element" as="new_alias" after="name.of.element.after" before="name.of.element.before"/>
</referenceContainer>
</body>
</page>webapi.xml 声明webapi
<routes xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:noNamespaceSchemaLocation="urn:magento:module:Magento_Webapi:etc/webapi.xsd">
<!-- url = 外部访问的URL -->
<!-- method = 请求方式 (GET,POST,PUT,DELETE) -->
<route url="/V1/customerGroups/:id" method="GET">
<service class="Magento\Customer\Api\GroupRepositoryInterface" method="getById"/>
<!-- ACL资源，用于控制API的访问权 -->
<resources>
<resource ref="Magento_Customer::group"/>
</resources>
</route>
</routes>events.xml
<config xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:Event/etc/events.xsd">
<event name="controller_action_predispatch">
<observer name="infinity_autocoupon_controller_action_predispatch" instance="Infinity\AutoCoupon\Observer\Predispatch" />
</event>
</config>