Spring MVC表單驗證 - 客戶端發送的請求在語法上不正確

Question

我試圖將表單驗證添加到工作應用程序。我開始在登錄表單中添加一個NotNull檢查。我正在使用Bean Validation API的Hibernate impl。

這裏是我寫

代碼

@Controller 
@RequestMapping(value="/login") 
@Scope("request") 
public class LoginController { 

    @Autowired 
    private CommonService commonService; 

    @Autowired 
    private SiteUser siteUser; 

    @InitBinder 
    private void dateBinder(WebDataBinder binder) { 
     SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy"); 
     CustomDateEditor editor = new CustomDateEditor(dateFormat, true); 
     binder.registerCustomEditor(Date.class, editor); 
    } 

    @ModelAttribute 
    protected ModelMap setupForm(ModelMap modelMap) { 
    modelMap.addAttribute("siteUser", siteUser); 
    return modelMap; 
    } 

    @RequestMapping(value="/form", method = RequestMethod.GET) 
    public ModelAndView form(ModelMap map){ 
    if (siteUser.getId() == null){ 
     map.addAttribute("command",new SiteUser()); 
     return new ModelAndView("login-form",map); 
    }else { 
     return new ModelAndView("redirect:/my-dashboard/"+siteUser.getId()); 
    } 
    } 

    @RequestMapping(value="/submit", method=RequestMethod.POST) 
    public ModelAndView submit(@Valid SiteUser user, ModelMap map, BindingResult result){ 
    if (result.hasErrors()) { 
     map.addAttribute("command", user); 
     System.out.println("Login Error block"); 
     return new ModelAndView("login/form",map); 
    } 
    else { 
     User loggedInUser = commonService.login(user.getEmail(), user.getPassword()); 
     if (loggedInUser != null) { 
     siteUser.setId(loggedInUser.getId()); 
     siteUser.setName(loggedInUser.getName()); 
     System.out.println("site user attr set"); 
     } 
     return new ModelAndView("redirect:/my-dashboard/"+loggedInUser.getId()); 
    } 
    } 
} 

該模型是

@Component 
@Scope("session") 
public class SiteUser { 
private Integer id = null; 
@NotNull 
private String name = null; 
private String email = null; 
private String password = null; 
private List<String> displayPrivList = null; 
private List<String> functionPrivList = null; 
    // And the getters and setters 
} 

的JSP是

<c:url var="loginSubmitUrl" value="/login/submit"/> 
    <form:form method="POST" action="${loginSubmitUrl}"> 
     <form:errors path="*" /> 
     <div class="row"> 
      <div class="span4"> 
      </div> 
      <div class="span4"> 
       <h3>Please Login</h3> 
       <label><span style="color:red">*</span>Email</Label><form:input path="email" type="text" class="input-medium" /> 
       <label><span style="color:red">*</span>Password</Label><form:input path="password" type="password" class="input-medium" /> 
       <br/>  
       <button type="submit" class="btn btn-primary">Login</button> 
       <button type="button" class="btn">Cancel</button> 
      </div> 
     </div>   
    </form:form> 

我已經加入messages.properties和註釋驅動Bean在高清上下文xml。 關於這個問題的其他答案談論表單域沒有發佈。就我而言，這是預期的行爲 - 如果我提交一個空白表單，我應該會得到一個錯誤。

請指教我錯過了什麼？

Answer 1

您可以嘗試通過包括這樣

 <form:form method="POST" action="${loginSubmitUrl}" commandName="user"> 

Answer 2

的命令名到它，你需要這種改變<form:form>：<form:errors path="email" cssClass="errors" /> 使用標籤形式：用相同的「路徑」名稱每個輸入錯誤。

如果不放置路徑，還可以同時列出所有錯誤。

在這裏，請與示例代碼的完整的例子，你可以下載到學習如何做： http://www.mkyong.com/spring-mvc/spring-3-mvc-and-jsr303-valid-example/

Answer 3

我認爲這個問題有同樣的問題，因爲你

Syntactically incorrect request sent upon submitting form with invalid data in Spring MVC (which uses hibernate Validator)

剛剛指出

你必須修改你的參數的順序。與@Value註釋