springboot中的filter_org.springframework.web.server.webfilter

站在tomcat容器的角度来看，容器上注册了上面几个filter。

1、 ApplicationFilterConfig[name=characterEncodingFilter, filterClass=org.springframework.boot.web.servlet.filter.OrderedCharacterEncodingFilter]
2、ApplicationFilterConfig[name=formContentFilter, filterClass=org.springframework.boot.web.servlet.filter.OrderedFormContentFilter]
3、ApplicationFilterConfig[name=requestContextFilter, filterClass=org.springframework.boot.web.servlet.filter.OrderedRequestContextFilter]
4、ApplicationFilterConfig[name=springSecurityFilterChain, filterClass=org.springframework.boot.web.servlet.DelegatingFilterProxyRegistrationBean$1]
5、ApplicationFilterConfig[name=myFilter, filterClass=org.business.user.config.MyFilter]
6、ApplicationFilterConfig[name=Tomcat WebSocket (JSR356) Filter, filterClass=org.apache.tomcat.websocket.server.WsFilter]

这里的MyFilter是我自己注的，源码为

package org.business.user.config;
 
import java.io.IOException;
 
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
 
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;
 
@Component
public class MyFilter extends OncePerRequestFilter{
 
	private Logger logger = LoggerFactory.getLogger(MyFilter.class);
	
	
	public MyFilter() {
		super();
		logger.info("start");
	}
 
 
	@Override
	protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain filterChain)
			throws ServletException, IOException {
		logger.info("begin");
		filterChain.doFilter(request, response);
		logger.info("end");
	}
 
}

文章的重点：这是一个spring security环境，UsernamePasswordAuthenticationFilter 这个却没有出现在上面。