스프링 인터셉터, 작동하지 않을때 처리하는 방법, interceptor, how to handle it when it doesn't work

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상황

스프링 컨트롤 실행전에 인터셉터를 추가 해야한다.
먼저 인터셉터를 만들고

import java.util.Objects;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.ModelAndView;

public class YYNControllerInterceptor implements HandlerInterceptor {
	private final static Logger LOGGER = LoggerFactory.getLogger(YYNControllerInterceptor.class);
	
	@Override
	public void afterCompletion(HttpServletRequest request, HttpServletResponse response, Object handler, Exception ex)
			throws Exception {
		// TODO Auto-generated method stub
	}

	@Override
	public boolean preHandle(HttpServletRequest request, HttpServletResponse response, Object handler)
			throws Exception {
            Logger.info("hello~");
		// 처리 
    	return true;
	}

	@Override
	public void postHandle(HttpServletRequest request, HttpServletResponse response, Object handler,
			ModelAndView modelAndView) throws Exception {
	}
}

WebMvcConfigurerAdapter를 상속받은 클래스에 addInterceptors 함수를 override해서 위에서 생성한 인터셉터를 addInterceptor 해서 넣어줬는데.. add까지는 되는데 컨트롤러 호출시 hello가 안찍힌다.... 왜!??

import java.util.Arrays;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.context.annotation.Import;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.MappedInterceptor;

...

@ComponentScan(basePackages = { "..." }, includeFilters = {
		@Filter(type = FilterType.ANNOTATION, classes = { Controller.class }) }, excludeFilters = {
				@Filter(type = FilterType.ANNOTATION, classes = { Service.class, Repository.class,
						Configuration.class }) })
@Configuration
public class ..Servlet extends WebMvcConfigurerAdapter {
	private final static Logger LOGGER = LoggerFactory.getLogger(..Servlet.class);

	...

	@Override
	public void addInterceptors(InterceptorRegistry registry) {
		super.addInterceptors(registry);
		LOGGER.info("[addInterceptors] ******************** ");
		registry.addInterceptor(new YYNControllerInterceptor()).addPathPatterns("/경로/~Controller");
	}
}

처리방법

MappedInterceptor

참고한 내용 ( https://stackoverflow.com/a/52781681 )
addInterceptors 함수를 override할 필요없이, 그냥 MappedInterceptor을 만들어서 @Bean으로 등록하면된다. ( 인터셉터가 더 필요하면 계속 MappedInterceptor 를 만들어서 Bean으로 등록하면된다)
더 좋은건 WebMvcConfigurerAdapter 를 상속받아서 구현할 필요도 없다. 그냥 어디서건 MappedInterceptor를 만들어 Bean으로 등록만 해주면 된다.

import java.util.Arrays;
import java.util.List;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.ComponentScan.Filter;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.FilterType;
import org.springframework.context.annotation.Import;
import org.springframework.stereotype.Controller;
import org.springframework.stereotype.Repository;
import org.springframework.stereotype.Service;
import org.springframework.web.method.support.HandlerMethodArgumentResolver;
import org.springframework.web.method.support.HandlerMethodReturnValueHandler;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.MappedInterceptor;

...

@ComponentScan(basePackages = { "..." }, 
    includeFilters = {
        @Filter(type = FilterType.ANNOTATION, classes = { Controller.class }) 
    }, 
    excludeFilters = {
        @Filter(type = FilterType.ANNOTATION, classes = { Service.class, Repository.class,Configuration.class }) 
    }
)
@Configuration
public class ..Servlet extends WebMvcConfigurerAdapter {
    private final static Logger LOGGER = LoggerFactory.getLogger(..Servlet.class);

    ...

    //@Override
    //public void addInterceptors(InterceptorRegistry registry) {
    //    super.addInterceptors(registry);
    //    LOGGER.info("[addInterceptors] ******************** ");
    //    registry.addInterceptor(new YYNControllerInterceptor()).addPathPatterns("/경로/~Controller");
    //}
    
    @Bean
    public YYNControllerInterceptor yynControllerInterceptor() {
        return new YYNControllerInterceptor();
    }
    
    @Bean
    public MappedInterceptor yynMappedInterceptor(YYNControllerInterceptor yynControllerInterceptor) {
        String[] arr = new String[] {"/경로/~Controller"};
        return new MappedInterceptor(arr, yynControllerInterceptor);
    }
}

확인

잘된다.
addInterceptors를 써서 등록했는데 안되는건.. 모르겠다. 근데 이제 그냥 MappedInterceptor 만들고 @Bean으로 등록하고 쓰는게 훨씬 편할꺼같다.
아 하루종일 삽질한게 허무하네..

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상황

처리방법

MappedInterceptor

확인

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