写一个继承类

启动器扫一下

此时访问一下页面就可以观察到过滤器的信息

代码

package com.example.demo.Filter;import lombok.extern.slf4j.Slf4j;import javax.servlet.*;import javax.servlet.annotation.WebFilter;@Slf4j@WebFilter(filterName = "myFilter1", urlPatterns = "/*")public class MyFilter1 implements Filter { @Override public void init(FilterConfig filterConfig) throws ServletException { log.info(filterConfig.getFilterName() + " init,过滤器初始化成功！"); } @Override public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain) { log.info("myFilter1 begin"); try { log.info("业务方法执行"); chain.doFilter(request, response); } catch (Exception e) { log.error("error!", e); } log.info("myFilter1 end"); } @Override public void destroy() { }}

启动器

package com.example.demo;import org.mybatis.spring.annotation.MapperScan;import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.boot.web.servlet.ServletComponentScan;@SpringBootApplication(scanBasePackages = {"com.example"})@MapperScan("com.example.demo.mapper")@ServletComponentScan(basePackages = "com.example.demo.Filter")public class Demo10Application { public static void main(String[] args) { SpringApplication.run(Demo10Application.class, args); }}

结果

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。