SpringMVCContext.java

package com.example.config;

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.web.servlet.ViewResolver;
import org.springframework.web.servlet.config.annotation.DefaultServletHandlerConfigurer;
import org.springframework.web.servlet.config.annotation.EnableWebMvc;
import org.springframework.web.servlet.config.annotation.ResourceHandlerRegistry;
import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
import org.springframework.web.servlet.handler.SimpleMappingExceptionResolver;
import org.springframework.web.servlet.view.InternalResourceViewResolver;
import org.springframework.web.servlet.view.JstlView;

@ComponentScan(basePackages = { "com.example.controller" })
@Configuration
@EnableWebMvc
public class SpringMVCContext extends WebMvcConfigurerAdapter {
	private static final String VIEW_RESOLVER_PREFIX = "/WEB-INF/views/";
	private static final String VIEW_RESOLVER_SUFFIX = ".jsp";

	// 정적 자원 관리하게 해줌 
    @Override
	public void addResourceHandlers(ResourceHandlerRegistry registry) {
        registry.addResourceHandler("/assets/**").addResourceLocations("/assets/");
	}
    // 뷰 설정( jsp 이용한다 )
	@Bean
	public ViewResolver viewResolver() {
        //jsp뷰 페이지 설정
		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
		viewResolver.setViewClass(JstlView.class);
		viewResolver.setPrefix(VIEW_RESOLVER_PREFIX);
		viewResolver.setSuffix(VIEW_RESOLVER_SUFFIX);
		return viewResolver;
	}


	// 기본 서블릿핸들링
    @Override
    public void configureDefaultServletHandling(DefaultServletHandlerConfigurer configurer) {
        configurer.enable();
    }

    //에러 처리
    @Bean
	public SimpleMappingExceptionResolver exceptionResolver() {
		SimpleMappingExceptionResolver exceptionResolver = new SimpleMappingExceptionResolver();
//		Properties exceptionMappings = new Properties();
//		exceptionMappings.put("java.lang.Exception", "error/error");
//		exceptionMappings.put("java.lang.RuntimeException", "error/error");
//		exceptionResolver.setExceptionMappings(exceptionMappings);
//		Properties statusCodes = new Properties();
//		statusCodes.put("error/404", "404");
//		statusCodes.put("error/error", "500");
//		exceptionResolver.setStatusCodes(statusCodes);
		return exceptionResolver;
	}
}