비밀번호 탈퇴할려하는데 오류가 뜹니다.

Question

비밀번호를 탈퇴하려고 하는데요.비밀번호탈퇴버튼을 누르면 밑에 오류가 뜨는데 이유를 모르겟습니다.<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%>Insert title here @RequestMapping(value="/user/deleteView.do", method = RequestMethod.GET) public String deleteView() throws Exception{ return "/user/deleteView"; } @RequestMapping(value="/user/delete.do", method=RequestMethod.POST) public String delete(String userId,RedirectAttributes rttr,HttpSession session)throws Exception{ service.memberDelete(userId); session.invalidate(); rttr.addFlashAttribute("msg", "이용해주셔서 감사합니다."); return "redirect:/user/login"; } @RequestMapping(value="/user/pwCheck.do" , method=RequestMethod.POST) @ResponseBody public int pwCheck(User user) throws Exception{ String userPw = service.pwCheck(user.getUserId()); if( user == null || !BCrypt.checkpw(user.getUserPw(), userPw)) { return 0; } return 1; }11월 09, 2023 4:56:08 오후 org.apache.catalina.core.StandardWrapperValve invoke심각: 경로 []의 컨텍스트 내의 서블릿 [appServlet]을(를) 위한 Servlet.service() 호출이, 근본 원인(root cause)과 함께, 예외 [Request processing failed; nested exception is java.lang.IllegalArgumentException: salt cannot be null]을(를) 발생시켰습니다.java.lang.IllegalArgumentException: salt cannot be null at org.springframework.security.crypto.bcrypt.BCrypt.hashpw(BCrypt.java:595) at org.springframework.security.crypto.bcrypt.BCrypt.hashpw(BCrypt.java:577) at org.springframework.security.crypto.bcrypt.BCrypt.checkpw(BCrypt.java:743) at com.kh.msg.user.controller.UserController.pwCheck(UserController.java:122) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:190) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:138) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:105) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:878) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:792) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1043) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:943) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1006) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:909) at javax.servlet.http.HttpServlet.service(HttpServlet.java:652) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:883) at javax.servlet.http.HttpServlet.service(HttpServlet.java:733) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:227) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:53) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:119) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:189) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:162) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:202) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:97) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:542) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:143) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:92) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:687) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:78) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:357) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:374) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:65) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:893) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1707) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128) at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.base/java.lang.Thread.run(Thread.java:829)

js_ · Answer

java.lang.IllegalArgumentException: salt cannot be null

오후 · Answer

java.lang.IllegalArgumentException: salt cannot be nullat org.springframework.security.crypto.bcrypt.BCrypt.hashpw(BCrypt.java:595)at org.springframework.security.crypto.bcrypt.BCrypt.hashpw(BCrypt.java:577)at org.springframework.security.crypto.bcrypt.BCrypt.checkpw(BCrypt.java:743)at com.kh.msg.user.controller.UserController.pwCheck(UserController.java:122)@RequestMapping(value="/user/pwCheck.do" , method=RequestMethod.POST) @ResponseBody public int pwCheck(User user) throws Exception{ String userPw = service.pwCheck(user.getUserId()); // 여기 userPw 가 있는지 로그찍어보세요 if( user == null || !BCrypt.checkpw(user.getUserPw(), userPw)) { return 0; } return 1; }

비밀번호 탈퇴할려하는데 오류가 뜹니다.

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