Filter(필터) 인터셉터와 구분해 주세요

Filter 상속  javax.servlet.Filter

구미에 맞게 3가지 메소드 오버라이딩
init
destroy
doFilter

@Slf4j
public class MyFirstFilter implements Filter {

	@Override
	public void init(FilterConfig filterConfig) throws ServletException {
		log.info("그냥 실행!");
	}
	
	@Override
	public void doFilter(ServletRequest request, ServletResponse response, FilterChain chain)
			throws IOException, ServletException {
		log.info("시작");
		request.setAttribute("merong", "응");
		chain.doFilter(request, response);
		log.info("종료");

	}
	
	@Override
	public void destroy() {
		log.info("사라질 때 사용");
	}

}

web.xml에 등록

	<filter>
		<filter-name>myFirstFilter</filter-name>
		<filter-class>kr.pe.e7e.filter.MyFirstFilter</filter-class>
	</filter>

	<filter-mapping>
		<filter-name>myFirstFilter</filter-name>
		<url-pattern>/*</url-pattern>
	</filter-mapping>

위처럼 하기 싫음 @WebFilter(value = "/*",filterName = "myFirstFilter") 사용