驗證錯誤，同時填寫表格

Question

我試圖設置驗證自定義錯誤，當錯誤輸入beeing通過。

這是我的形式thymeleaf模板的幫助下寫成：

<form th:action="@{/addPet}" th:object="${petDto}" method="post"> 
      <table> 
       <tr> 
        <td>Pet name:</td> 
        <td><input type="text" th:field="*{pet.petName}" /></td> 
        <td th:if="${#fields.hasErrors('pet.petName')}" th:errors="*{pet.petName}">fieldError</td> 
       </tr> 
       <tr> 
        <td>Owner First name:</td> 
        <td><input type="text" th:field="*{owner.firstName}" /></td> 
        <td th:if="${#fields.hasErrors('owner.firstName')}" th:errors="*{owner.firstName}">fieldError</td> 
       </tr> 
       <tr> 
        <td>Owner Last name:</td> 
        <td><input type="text" th:field="*{owner.lastName}" /></td> 
        <td th:if="${#fields.hasErrors('owner.lastName')}" th:errors="*{owner.lastName">fieldError</td> 
       </tr> 
       <tr> 
        <td>Owner Number:</td> 
        <td><input type="text" th:field="*{owner.phoneNumber}" /></td> 
        <td th:if="${#fields.hasErrors('owner.phoneNumber')}" th:errors="*{owner.phoneNumber}">fieldError</td> 
       </tr> 
       <tr> 
        <td><input type="submit" value="add" /></td> 
       </tr> 
      </table> 

所以有DTO通過包含兩個領域：

public class PetDto { 


    private Pet pet; 
    private Owner owner; 

現在，當我輸入錯誤輸入我得到這個：

here was an unexpected error (type=Internal Server Error, status=500). 
Validation failed for classes [pl.kaczynski.model.Owner] during persist time for groups [javax.validation.groups.Default, ] List of constraint violations:[ ConstraintViolationImpl{interpolatedMessage='Length must be between 2 and 15 characters.', propertyPath=lastName, rootBeanClass=class pl.kaczynski.model.Owner, messageTemplate='{Size}'} ConstraintViolationImpl{interpolatedMessage='Length must be between 2 and 15 characters.', propertyPath=firstName, rootBeanClass=class pl.kaczynski.model.Owner, messageTemplate='{Size}'} ConstraintViolationImpl{interpolatedMessage='numeric value out of bounds (<9 digits>.<0 digits> expected)', propertyPath=phoneNumber, rootBeanClass=class pl.kaczynski.model.Owner, messageTemplate='{javax.validation.constraints.Digits.message}'} ] 

而我的目標是有錯誤信息顯示旁邊的輸入字段相同的觀點，不重定向到錯誤頁面。我爲對象Pet和Owner創建了類似的表單頁面，並且它工作正常，這使我認爲我的構圖類DTO存在問題。

編輯// 這是模型類：

@Entity 
public class Pet extends BaseClass{ 

    @Column(name = "pet_name") 
    @Size(min=2,max=15,message="{Size}") 
    private String petName; 
    @OneToOne() 
    @JoinColumn(name = "owner_Id") 
    private Owner owner; 

@Entity 
public class Owner extends BaseClass { 

    @Column(name = "first_name") 
    @Size(min = 2, max = 15, message = "{Size}") 
    private String firstName; 

    @Column(name = "last_name") 
    @Size(min = 2, max = 15, message = "{Size}") 
    private String lastName; 

    @Column(name = "phone") 
    @Digits(fraction = 0, integer = 9) 
    private String phoneNumber; 

這裏是控制器：如果你有幾個錯誤信息

<tr> 
    <td>Pet name:</td> 
    <td><input type="text" th:field="*{pet.petName}" /></td> 
    <span th:if="${#fields.hasErrors('pet.petName')}"> 
     <ul> 
      <li th:each="err : ${#fields.errors('pet.firstName')}" th:text="${err}">error text</li> 
     <ul> 
    </span> 
</tr> 

：

@RequestMapping(value = "/addPet", method = RequestMethod.POST) 
    public String addPetPost(@Valid @ModelAttribute(value="petDto") PetDto petDto, BindingResult result){ 

     if(result.hasErrors()) 
      return "/addPet"; 

     Owner owner = petDto.getOwner(); 
     Pet pet = petDto.getPet(); 
     pet.setOwner(owner); 

     ownerService.add(owner); 
     petService.add(pet); 
     return "redirect:addPet"; 
    } 

Answer 1

試試這個辦法相同的字段（如名字是必需的，名字必須有2到15個字符等），它們將被打印在一個列表中。