springmvc怎么拦截网址

Question

简单地说就是：
怎么让springmvc拦截所有访问，强制跳转到登录页面？
登录页面是login.jsp

+++++++++++++++++++++++

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    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置初始化参数，创建完DispatcherServlet对象，加载springmvc.xml配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
        <load-on-startup>1</load-on-startup>
    </servlet>
    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/*</url-pattern>
    </servlet-mapping>

Answer 1

参考
https://blog.csdn.net/larger5/article/details/78968735
https://download.csdn.net/download/cx625251098/9933773