web.xml 配置

web.xml 配置怎么找？

spring-framework-5.1.8.RELEASE-dist 包

路径：spring-framework-5.1.8.RELEASE-dist\spring-framework-5.1.8.RELEASE\docs\spring-framework-reference

也可以去spring官网去找：

<web-app>

    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>/WEB-INF/app-context.xml</param-value>
    </context-param>

    <servlet>
        <servlet-name>app</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value></param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>app</servlet-name>
        <url-pattern>/app/*</url-pattern>
    </servlet-mapping>

</web-app>

标签含义参见：https://blog.csdn.net/lingyiwin/article/details/92232881