@ModelAttribute依賴於ActionRequest

Spring MVC Portlet我需要在modelattribute中從依賴於ActionRequest（liferay 6.1.1）的服務中檢索信息。@ModelAttribute依賴於ActionRequest

我已經試過這樣：

@ActionMapping(params="myaction=editUser") 
    public void editUser(@ModelAttribute(value = "user") UserInfo user, BindingResult bindingResult, 
             ActionResponse response, SessionStatus sessionStatus, ActionRequest request) 
      throws Exception { 

     myEditUserValidator.validate(user, bindingResult); 

    //... 
} 

@ModelAttribute("user") 
    public UserInfo getUser(@RequestParam String uid, ActionRequest request) throws Exception { 
     return ldapService.getUser(uid, getVirtualPortalLdapMapping(request, virtualPortals)); 
}

但錯誤是：

ERROR [DispatcherPortlet:559] Could not complete request 
org.springframework.web.bind.annotation.support.HandlerMethodInvocationException: 
Failed to invoke handler method [public void com.mystuff.portlets.controllers.EditUserController.editUser(org.springframework.ui.Model,java.lang.String,org.springframework.validation.BindingResult,javax.portlet.ActionResponse,org.springframework.web.bind.support.SessionStatus,javax.portlet.ActionRequest) 
throws java.lang.Exception]; nested exception is java.lang.IllegalStateException: 
Errors/BindingResult argument declared without preceding model attribute. Check your handler method signature!

任何想法？感謝您的幫助

來源

2013-08-06 Paolof76

你的調用者希望你的方法有6個參數：Model，String，BindingResult，ActionResponse，SessionStatus和ActionRequest。而你的方法聲明只有5個參數：UserInfo user，BindingResult bindingResult，ActionResponse響應，SessionStatus sessionStatus，ActionRequest請求。你可以粘貼你的UserInfo類嗎？ –

謝謝，這是原因（我正在尋找一箇舊的錯誤...） – Paolof76

您錯誤地聲明瞭您的模型屬性。值不應該在那裏。

public void editUser(@ModelAttribute("user") UserInfo user, BindingResult bindingResult, 
ActionResponse response, SessionStatus sessionStatus, ActionRequest request)

來源

2013-08-06 09:11:25 ArunM

是的，@ModelAttribute（value =「user」）也是可能的 – Paolof76

@ModelAttribute依賴於ActionRequest

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