至少需要7个jar

image-20210123154134146

新建一个动态web项目

配置web.xml

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<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://xmlns.jcp.org/xml/ns/javaee"
	xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd"
	id="WebApp_ID" version="4.0">
	<display-name>SpringWeb1</display-name>
	<welcome-file-list>
		<welcome-file>index.html</welcome-file>
		<welcome-file>index.htm</welcome-file>
		<welcome-file>index.jsp</welcome-file>
		<welcome-file>default.html</welcome-file>
		<welcome-file>default.htm</welcome-file>
		<welcome-file>default.jsp</welcome-file>
	</welcome-file-list>
	<context-param>
		<!-- 指定IOC容器的位置 -->
		<param-name>contextConfigLocation</param-name>
		<param-value>classpath:applicationContext.xml</param-value>
	</context-param>
	<listener>
		<!-- 配置Spring-web.jar提供的监听器，此监听器可以在服务器启动时，初始化IOC容器 初始化IOC容器，必须告诉此容器的位置：contextparam -->
		<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
	</listener>
</web-app>

新建一个applicationContext

启动tomcat

信息: Loading XML bean definitions from class path resource [applicationContext.xml]

加载多个XML

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<context-param>
		<!-- 指定IOC容器的位置 -->
		<param-name>contextConfigLocation</param-name>
		<param-value>
		classpath:applicationContext.xml,
		classpath:applicationContext-*.xml
		</param-value>
		<!-- 加载多个applicationContext -->
	</context-param>

或者

在主配置文件中

<import resource="applicationContext-Controller.xml"/>

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<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">
<import resource="applicationContext-Controller.xml"/>
</beans>