Springboot配置过滤器实现过程解析

这篇文章主要介绍了Springboot配置过滤器实现过程解析,文中通过示例代码介绍的非常详细，对大家的学习或者工作具有一定的参考学习价值,需要的朋友可以参考下

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