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我試圖找出如何「保留」後的BindingResult值我想做一個重定向但保持錯誤值，並顯示他們的用戶在jsp中沒有重定向它很好，但是當我做redict我失去了誤差值這是我的代碼如何在POST後通過重定向在彈簧中保留驗證錯誤？
@RequestMapping(value="/ajouter",method=RequestMethod.POST)
public String ajouterEnqueteur(HttpServletRequest request,Model model,
@ModelAttribute("enqueteur")@Valid Enqueteur enqueteur ,BindingResult binding,RedirectAttributes attr,HttpSession session)
{
if (binding.hasErrors())
{
logger.debug(binding.toString());
attr.addAttribute("enqueteur",enqueteur);
attr.addAttribute("org.springframework.validation.BindingResult.enqueteur",binding);
}
else{
enqueteurService.save(enqueteur);
logger.debug("Enqueteur enregistré. adesse IP {}"+request.getRemoteAddr());
}
return "redirect:/enqueteurs/init.do";
}
當我提交我得到這個錯誤信息的形式：
message Failed to convert value of type 'com.glsid.gnrqst.entities.Enqueteur' to required type 'java.lang.String'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.glsid.gnrqst.entities.Enqueteur] to required type [java.lang.String]: no matching editors or conversion strategy found
description Le serveur a rencontré une erreur interne qui l''a empêché de satisfaire la requête.
exception
org.springframework.beans.ConversionNotSupportedException: Failed to convert value of type 'com.glsid.gnrqst.entities.Enqueteur' to required type 'java.lang.String'; nested exception is java.lang.IllegalStateException: Cannot convert value of type [com.glsid.gnrqst.entities.Enqueteur] to required type [java.lang.String]: no matching editors or conversion strategy found
org.springframework.beans.TypeConverterSupport.doConvert(TypeConverterSupport.java:74)
org.springframework.beans.TypeConverterSupport.convertIfNecessary(TypeConverterSupport.java:40)
org.springframework.validation.DataBinder.convertIfNecessary(DataBinder.java:657)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.formatValue(RedirectAttributesModelMap.java:79)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.addAttribute(RedirectAttributesModelMap.java:71)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.addAttribute(RedirectAttributesModelMap.java:34)
com.glsid.gnrqst.controllers.EnqueteurController.ajouterEnqueteur(EnqueteurController.java:46)
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:221)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:111)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
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:970)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
cause mère
java.lang.IllegalStateException: Cannot convert value of type [com.glsid.gnrqst.entities.Enqueteur] to required type [java.lang.String]: no matching editors or conversion strategy found
org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:302)
org.springframework.beans.TypeConverterDelegate.convertIfNecessary(TypeConverterDelegate.java:108)
org.springframework.beans.TypeConverterSupport.doConvert(TypeConverterSupport.java:64)
org.springframework.beans.TypeConverterSupport.convertIfNecessary(TypeConverterSupport.java:40)
org.springframework.validation.DataBinder.convertIfNecessary(DataBinder.java:657)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.formatValue(RedirectAttributesModelMap.java:79)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.addAttribute(RedirectAttributesModelMap.java:71)
org.springframework.web.servlet.mvc.support.RedirectAttributesModelMap.addAttribute(RedirectAttributesModelMap.java:34)
com.glsid.gnrqst.controllers.EnqueteurController.ajouterEnqueteur(EnqueteurController.java:46)
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:221)
org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137)
org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:111)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806)
org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729)
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:970)
org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)
javax.servlet.http.HttpServlet.service(HttpServlet.java:648)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
有人可以幫助我的Merci D'AVANCE！
http://stackoverflow.com的可能的複製錯誤/ questions/2543797/spring-redirect-post-even-with-validation-errors –
不，這不是重複的問題！我嘗試在這個鏈接的解決方案，但仍然有一些堆棧errorsexception這就是爲什麼我發佈我的代碼和異常，我希望得到一些幫助 –
在另一個問題看起來很相似的問題，這就是爲什麼我建議。我記得'RedirectAttributes'解決了類似的異常問題。但如果它不適合你，也許有人會拿出正確的答案。問候。 –