package com.an;

import com.an.servletfilterlistener.MyFilter;

import com.an.servletfilterlistener.MyListener;

import com.an.servletfilterlistener.MyServlet;

import org.springframework.boot.SpringApplication;

import org.springframework.boot.autoconfigure.SpringBootApplication;

import org.springframework.boot.web.servlet.FilterRegistrationBean;

import org.springframework.boot.web.servlet.ServletListenerRegistrationBean;

import org.springframework.boot.web.servlet.ServletRegistrationBean;

import org.springframework.context.annotation.Bean;

/**

 * @description:

 * @author: anpeiyong

 * @date: Created in 2019/11/14 19:56

 * @since:

 */

@SpringBootApplication

public class MyDemoApplication {

    public static void main(String[] args) {

        SpringApplication.run(MyDemoApplication.class, args);

    }

    /**

     * 内嵌Servlet容器中注册Servlet、Filter、Listener---第一种方式：直接注册Bean

     */

    @Bean

    public MyServlet getMyServlet(){

        return new MyServlet();

    }

    @Bean

    public MyFilter getMyFilter(){

        return new MyFilter();

    }

    @Bean

    public MyListener getMyListener(){

        return new MyListener();

    }

    /**

     * 内嵌Servlet容器中注册Servlet、Filter、Listener---第二种方式：注册ServletRegistrationBean、FilterRegistrationBean、ServletListenerRegistrationBean　的Bean

     */

    public ServletRegistrationBean getServletRegistrationBean(){

        return new ServletRegistrationBean(new MyServlet(),"/**");

    }

    public FilterRegistrationBean getFilterRegistrationBean(){

        FilterRegistrationBean filterRegistrationBean=new FilterRegistrationBean();

        filterRegistrationBean.setFilter(new MyFilter());

        filterRegistrationBean.setOrder(2);

        return filterRegistrationBean;

    }

    public ServletListenerRegistrationBean getServletListenerRegistrationBean(){

        return new ServletListenerRegistrationBean(new MyListener());

    }

}