HTTPステータス 500 - Internal Server ErrorType?Exception Reportメッセージ?Request processing failed; nested exception is java.lang.IllegalArgumentException: An invalid character [44] was present in the Cookie value説明?The server encountered an unexpected condition that prevented it from fulfilling the request.例外org.springframework.web.util.NestedServletException: Request processing failed; nested exception is java.lang.IllegalArgumentException: An invalid character [44] was present in the Cookie value org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:981) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)原因java.lang.IllegalArgumentException: An invalid character [44] was present in the Cookie value org.apache.tomcat.util.http.Rfc6265CookieProcessor.validateCookieValue(Rfc6265CookieProcessor.java:182) org.apache.tomcat.util.http.Rfc6265CookieProcessor.generateHeader(Rfc6265CookieProcessor.java:115) org.apache.catalina.connector.Response.generateCookieString(Response.java:1019) org.apache.catalina.connector.Response.addCookie(Response.java:967) org.apache.catalina.connector.ResponseFacade.addCookie(ResponseFacade.java:386) cn.cdz.controller.SiteController.showSiteDetail(SiteController.java:138) sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) java.lang.reflect.Method.invoke(Method.java:498) org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:222) org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:110) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:814) org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:737) org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:969) org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:860) javax.servlet.http.HttpServlet.service(HttpServlet.java:635) org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:845) javax.servlet.http.HttpServlet.service(HttpServlet.java:742) org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:121) org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)注意?原因のすべてのスタックトレースは、のログに記録されています