| タイトル | ： Re^4: Spring2日目：ThymeleafでWebアプリを作るに関する質問2 |
| 投稿日 | ： 2023/10/09(Mon) 20:39 |
| 投稿者 | ： katayama |
> > > http://localhost:8080/output
> > > はボタンからではなく、
> > > URLを直指定して入るとエラーになります。
> >
> > 私の環境ではエラーになりませんが、
> > どんなえらメッセージがでますか？
>
> 長いですが、全コピーしたものを貼り付けます。
>
> Whitelabel Error Page
> This application has no explicit mapping for /error, so you are seeing this as a fallback.
>
> Mon Oct 09 20:36:28 JST 2023
> There was an unexpected error (type=Bad Request, status=400).
> Required parameter 'number' is not present.
> org.springframework.web.bind.MissingServletRequestParameterException: Required request parameter 'number' for method parameter type String is not present
> at org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.handleMissingValueInternal(RequestParamMethodArgumentResolver.java:218)
> at org.springframework.web.method.annotation.RequestParamMethodArgumentResolver.handleMissingValue(RequestParamMethodArgumentResolver.java:193)
> at org.springframework.web.method.annotation.AbstractNamedValueMethodArgumentResolver.resolveArgument(AbstractNamedValueMethodArgumentResolver.java:114)
> at org.springframework.web.method.support.HandlerMethodArgumentResolverComposite.resolveArgument(HandlerMethodArgumentResolverComposite.java:122)
> at org.springframework.web.method.support.InvocableHandlerMethod.getMethodArgumentValues(InvocableHandlerMethod.java:179)
> at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:146)
> at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:118)
> at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:884)
> at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:797)
> at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:87)
> at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:1081)
> at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:974)
> at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:1011)
> at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:903)
> at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:564)
> at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:885)
> at jakarta.servlet.http.HttpServlet.service(HttpServlet.java:658)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:205)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
> at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
> at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:100)
> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
> at org.springframework.web.filter.FormContentFilter.doFilterInternal(FormContentFilter.java:93)
> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
> at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:201)
> at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:116)
> at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:174)
> at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:149)
> at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:167)
> at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:90)
> at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:482)
> at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:115)
> at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:93)
> at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:74)
> at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:341)
> at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:391)
> at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:63)
> at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:894)
> at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1740)
> at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:52)
> at org.apache.tomcat.util.threads.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1191)
> at org.apache.tomcat.util.threads.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:659)
> at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
> at java.base/java.lang.Thread.run(Thread.java:833)
http://localhost:8080/input
の
送信ボタン押下時では、
このエラーはでないです。