스프링 ArgumentResolver

스프링 ArgumentResolver

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컨트롤러

@Login 어노테이션 등록(사용자가 만들어줘야함)

@GetMapping("/") public String homeLoginV3ArgumentResolver(@Login Member loginMember, Model model){ // 세션에 회원 데이터가 없으면 home if (loginMember == null) { return "home"; } // 세션이 유지되면 로그인으로 이동동 model.addAttribute("member", loginMember); return "loginHome"; }

@Login

package hello.login.web.argumentresolver; import java.lang.annotation.ElementType; import java.lang.annotation.Retention; import java.lang.annotation.RetentionPolicy; import java.lang.annotation.Target; @Target(ElementType.PARAMETER) @Retention(RetentionPolicy.RUNTIME) public @interface Login { }

ArgumentResolver 생성

// supportsParameter 함수가 true 이면 실행

package hello.login.web.argumentresolver; import hello.login.domain.member.Member; import hello.login.web.SessionConst; import lombok.extern.slf4j.Slf4j; import org.springframework.core.MethodParameter; import org.springframework.web.bind.support.WebDataBinderFactory; import org.springframework.web.context.request.NativeWebRequest; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.method.support.ModelAndViewContainer; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpSession; @Slf4j public class LoginMemberArgumentResolver implements HandlerMethodArgumentResolver { @Override public boolean supportsParameter(MethodParameter parameter) { log.info("supportsParameter 실행"); boolean hasLoginAnnotation = parameter.hasParameterAnnotation(Login.class); boolean hasMemberType = Member.class.isAssignableFrom(parameter.getParameterType()); return hasLoginAnnotation && hasMemberType; } // supportsParameter 함수가 true 이면 실행 @Override public Object resolveArgument(MethodParameter parameter, ModelAndViewContainer mavContainer, NativeWebRequest webRequest, WebDataBinderFactory binderFactory) throws Exception { log.info("resolveArgument 실행"); HttpServletRequest request = (HttpServletRequest) webRequest.getNativeRequest(); HttpSession session = request.getSession(false); if (session == null) { return null; } return session.getAttribute(SessionConst.LOGIN_MEMBER); } }

ArgumentResolver 스프링 빈 등록

package hello.login; import hello.login.web.argumentresolver.LoginMemberArgumentResolver; import hello.login.web.filter.LogFilter; import hello.login.web.filter.LoginCheckFilter; import hello.login.web.interceptor.LogInterceptor; import hello.login.web.interceptor.LoginCheckInterceptor; import org.springframework.boot.web.servlet.FilterRegistrationBean; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.web.method.support.HandlerMethodArgumentResolver; import org.springframework.web.servlet.config.annotation.InterceptorRegistry; import org.springframework.web.servlet.config.annotation.WebMvcConfigurer; import javax.servlet.Filter; import java.util.List; @Configuration public class WebConfig implements WebMvcConfigurer { @Override public void addArgumentResolvers(List resolvers) { resolvers.add(new LoginMemberArgumentResolver()); } }

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from http://arch1tect.tistory.com/178 by ccl(A) rewrite - 2021-10-01 01:27:33