package com.example.springbootweb.filter;

import javax.servlet.*;

import javax.servlet.annotation.WebFilter;

import java.io.IOException;

@WebFilter(filterName = "MyFilter",urlPatterns = "/*")

public class MyFilter implements Filter {

    public void destroy() {

    }

    public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain) throws ServletException, IOException {

        System.out.println("进入了MyFilter");

        chain.doFilter(req, resp);

    }

    public void init(FilterConfig config) throws ServletException {

    }

}