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  • sprintboot 整合Servlet,Filter,Listener

    简介:

      如果需要整合第三方框架时,可能还是不得不使用Servlet,Filter,Listener,Springboot中也有提供支持。

    @WebServlet("/my")
    public class MyServlet extends HttpServlet {
        @Override
        protected void doGet(HttpServletRequest req, HttpServletResponse resp){
            doPost(req,resp);
        }
        @Override
        protected void doPost(HttpServletRequest req, HttpServletResponse resp){
            System.out.println("name>>>"+req.getParameter("name"));
        }
    }
    @WebFilter("/*")
    public class MyFilter implements Filter {
        @Override
        public void init(FilterConfig filterConfig){
            System.out.println("MyFilter>>>init");
        }
        @Override
        public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) throws IOException, ServletException {
            System.out.println("MyFilter>>>doFilter");
            chain.doFilter(request,response);
        }
    
        @Override
        public void destroy() {
            System.out.println("MyFilter>>>destroy");
        }
    }
    @WebListener
    public class MyListener implements ServletRequestListener {
        @Override
        public void requestDestroyed(ServletRequestEvent sre) {
            System.out.println("MyListener>>>requestDestroyed");
        }
        @Override
        public void requestInitialized(ServletRequestEvent sre) {
            System.out.println("MyListener>>>requestInitialized");
        }
    }

    三个组件使用@WebServlet,@WebFilter,@WebListener进行标记,启动类上添加@ServletComponentScan,实现对Servlet,Filter,以及Listener。

    http://localhost:8080/my?name=tttt

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  • 原文地址:https://www.cnblogs.com/atomgame/p/12510131.html
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