Web project Spring basic configuration

1. If the project uses Spring annotations to complete dependency injection, you need to declare the annotation interpreter in the Spring basic configuration file and configure the annotation scanning package path

<?xml version="1.0" encoding="UTF-8"?>  
    <beans xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xmlns="http://www.springframework.org/schema/beans"
        xmlns:context="http://www.springframework.org/schema/context"  
    ...
        xsi:schemaLocation="http://www.springframework.org/schema/beans  
               http://www.springframework.org/schema/beans/spring-beans-3.0.xsd  
               http://www.springframework.org/schema/context  
               http://www.springframework.org/schema/context/spring-context-3.0.xsd  
    ...
        <context:annotation-config/>
       
        <!-- Use this configuration to omit the previous configuration -->
        <context:component-scan base-package="com.meng"/>
    </beans>