로그인 화면 처리중 발생한 500에러 질문 있습니다.

Question

여러가지 오류와 소스공부로 이사이트를 애용하다가처음 글을 올리게된 이제 막 신입 초짜입니다. 혼자 공부를 하다가 처음보는 오류로 글을 올리게 되었네요.질문 양식같은게 잘몬되었다면 많은 조언 부탁드립니다. ㅠㅠ우선 오류 메시지 입니다.로그인 화면에서 간단한 아이디와 비번을 입력한후 게시판 list로 넘어가는때 뜨는 에러메세지입니다.심각: Servlet.service() for servlet [appServlet] in context with path [/ProjectSupporter] threw exception [Request processing failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.http.HttpServletRequest]: Specified class is an interface] with root cause org.springframework.beans.BeanInstantiationException: Failed to instantiate [javax.servlet.http.HttpServletRequest]: Specified class is an interface at org.springframework.beans.BeanUtils.instantiateClass(BeanUtils.java:99) at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.createAttribute(ModelAttributeMethodProcessor.java:142) at org.springframework.web.servlet.mvc.method.annotation.ServletModelAttributeMethodProcessor.createAttribute(ServletModelAttributeMethodProcessor.java:80) at org.springframework.web.method.annotation.ModelAttributeMethodProcessor.resolveArgument(ModelAttributeMethodProcessor.java:102) at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:121) at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:160) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:129) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:116) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:660) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:741) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:199) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:490) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:139) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:668) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:343) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:408) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:791) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1417) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Unknown Source) 로그인 화면 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%> Insert title here " />

컨트롤러 화면 package com.spring.test.bbsController; import java.io.IOException; import java.util.HashMap; import java.util.Map; import javax.servlet.ServletException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RequestParam; import com.spring.test.bbsModel.bbsService; @Controller public class sessionController { private static final Logger logger = LoggerFactory.getLogger(sessionController.class); @Autowired private bbsService bbsservice; @RequestMapping("/bbs/login.do") public String loginfo() { return "bbs/login"; } @RequestMapping(value="/bbs/login_ok.do", method=RequestMethod.POST) public String login_ok(@ModelAttribute HttpServletRequest request, Model model, @RequestParam String id, @RequestParam String pw ) { logger.info("로그인 처리 결과"); Map map = new HashMap(); map.put("id", id); map.put("pw", pw); String submit=bbsservice.loginCheck(map); String msg="", url=""; if(submit!=pw) { msg="로그인 실패하였습니다."; url="/bbs/login.do"; }else { HttpSession session = request.getSession(); session.setAttribute("id", id); msg="로그인 성공"; url="/bbs/bbsList.do"; } model.addAttribute("msg",msg); model.addAttribute("msg",url); return "common/message"; } @RequestMapping(value="/bbs/bbsLogout.do", method=RequestMethod.POST) public String logout(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException { req.getSession().invalidate(); resp.sendRedirect("/bbs/login.do"); return null; } }

배우고싶은이 · Answer

public String login_ok(&#64;ModelAttribute HttpServletRequest request, Model model, &#64;RequestParam String id, &#64;RequestParam String pw ) { &#64;ModelAttribute --> Class가 와야하는데 왠 HttpServletRequest가 왔네요. ?? 뭘까요.. 이런 코드가 어디에 있을까요?

초신입 · Answer

어떤 클래스가 와야 하나요?? 이해를 못하겠네요 ;;

륜디아 · Answer

modelAttribute를 왜 사용하는지 부터 다시 보셔야 할듯 해요....https://javafactory.tistory.com/352

초신입 · Answer

헐;; 그렇네요....감사드립니다 ㅠ_ㅠ !!!!

로그인 화면 처리중 발생한 500에러 질문 있습니다.

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