Javax驗證沒有給出錯誤消息

Question

我正在使用javax驗證。我有這樣的XML：

<context:annotation-config/> 
    <!-- Configures the @Controller programming model --> 
    <mvc:annotation-driven /> 
    <!-- Forwards requests to the "/" resource to the "index" view --> 
    <mvc:view-controller path="/" view-name="front"/> 
    .... 
<context:component-scan base-package="fi.utu.tuha.controller" />' 

和控制器：

public String ready(@ModelAttribute("netdriveOrder")@Valid NetdriveOrder netdriveOrder, 
      Model model, BindingResult result) { 
     if (result.hasErrors()) { 
      return "order"; 
     } else { 
      return "order_confirmed"; 
    } 

我看不出有錯，但我得到這個：

異常

org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: 
Failed to invoke handler method [public java.lang.String 
fi.utu.tuha.controller.NetDriveOrderFormController.ready(fi.utu.tuha.domain.NetdriveOrder,org.springframework.ui.Model,org.springframework.validation.BindingResult)]; 
nested exception is java.lang.IllegalStateException: 
Errors/BindingResult argument declared without preceding model 
attribute. Check your handler method signature! 

堆棧跟蹤

org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:181) 
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:426) 
org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:414) 
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:790) 
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:719) 
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:644) 
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:560) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:637) 
javax.servlet.http.HttpServlet.service(HttpServlet.java:717) 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:368) 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:109) 
org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:83) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:97) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:100) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:78) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
com.nixu.security.sso.web.HeaderAuthenticationFilter.doFilter(HeaderAuthenticationFilter.java:177) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:35) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:79) 
org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:380) 
org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:169) 
org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:237) 
org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:167) 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:88) 
org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:76) 
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) 
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) 
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) 
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191) 
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:465) 
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127) 
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) 
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) 
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298) 
org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:859) 
org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:579) 
org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1555) 
java.lang.Thread.run(Thread.java:619) 

Answer 1

BindingResult下一步應該到相應的模型屬性聲明：

public String ready(
    @ModelAttribute("netdriveOrder") @Valid NetdriveOrder netdriveOrder, 
    BindingResult result, 
    Model model) { ... }