Could not resolve view with name 'index' in servlet with name 'dispatcherServlet'

Interceptor를 등록 후 아래와 같은 오류가 발생하였습니다.

 

Could not resolve view with name 'index' in servlet with name 'dispatcherServlet'

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package com.study.myweb.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Qualifier;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.HandlerInterceptor;
import org.springframework.web.servlet.config.annotation.InterceptorRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurer;

// Spring MVC 프로젝트에 관련된 설정을 하는 클래스
@Configuration
//@EnableWebMvc
public class WebMVCConfig implements WebMvcConfigurer {
    @Autowired
    @Qualifier( value = "authInterceptor" )
    private HandlerInterceptor authInterceptor;

	/**
	 * Interceptor 를 등록
	 */
	@Override
    public void addInterceptors( InterceptorRegistry registry ) {
        registry.addInterceptor( authInterceptor ).addPathPatterns( "/**" );
    }

}

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문제는 @EnableWebMvc 가 원인이였습니다.

the Spring Boot Reference Guide:
27.1.1 Spring MVC Auto-configuration
If you want to keep Spring Boot MVC features and you want to add additional MVC configuration [...] you can add your own @Configuration class of type WebMvcConfigurer but without @EnableWebMvc.
If you want to take complete control of Spring MVC, you can add your own @Configuration annotated with @EnableWebMvc.

Spring Boot MVC 기능을 유지하고, 추가 MVC 구성[...]을(를) 추가하려면 
WebMvcConfigurer 유형의 고유한 @Configuration 클래스는 추가할 수 있지만 
@EnableWebMvc는 추가할 수 없습니다.

Spring Boot 의 고유기능을 사용하기 위해서는 @EnableWebMvc 는 사용하지 않습니다.

@EnableWebMvc를 사용하면 Spring MVC를 사용하게 되어 직접 MVC 설정을 해주어야 한다는 의미입니다.

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참고

https://stackoverflow.com/questions/51303453/spring-boot-could-not-resolve-view-with-name-index-in-servlet-with-name-disp

Spring Boot: Could not resolve view with name 'index' in servlet with name 'dispatcherServlet'