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  • dispatherServlet拦截所有请求,但是不拦截JSP和其他配置的servelt

    不是顺序问题,是就不拦截Servlet

    不是load-on-startup启动先后顺序问题,是就是不拦截Servlet。

    SpringMVC默认用的是第二个

    //<url-pattern>/*</url-pattern>会拦截JSP,静态文件,不拦截Servlet,拦截陌生URL
    //<url-pattern>/</url-pattern>拦截静态文件,不拦截JSP和Servlet,拦截陌生URL
    public class MyDispatcherServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
    System.out.println(req.getRequestURI());
    }
    }

    <servlet>
    <servlet-name>dispatcherServlet</servlet-name>
    <servlet-class>servlet.MyDispatcherServlet</servlet-class>
    <load-on-startup>-1</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>dispatcherServlet</servlet-name>
    <url-pattern>/*</url-pattern>
    </servlet-mapping>
    <servlet>
    <servlet-name>JsonServlet</servlet-name>
    <servlet-class>servlet.JsonServlet</servlet-class>
    <load-on-startup>10</load-on-startup>
    </servlet>
    <servlet-mapping>
    <servlet-name>JsonServlet</servlet-name>
    <url-pattern>/getJson</url-pattern>
    </servlet-mapping>
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  • 原文地址:https://www.cnblogs.com/as3lib/p/10712129.html
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