Springboot配置过滤器实现过程解析

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。