[英]form validation in spring in action 5
我在 github 上關注spring in action 5的源代碼,我編寫了自己的版本。 當我將名稱留空並提交時,我得到了這樣的錯誤頁面
並且控制台輸出是: Field error in object 'taco' on field 'name': rejected value [];
這是我的代碼:
設計.html
<label>give it a name:</label>
<input type="text" th:field="*{name}">
<span class="validationError"
th:if="${#fields.hasErrors('name')}"
th:errors="*{name}">Name Error</span>
設計控制器.java
@PostMapping
public String postTaco(@Valid Taco taco, Order order, Errors errors) {
if (errors.hasErrors()){
return "design";
}
Taco taco1 = tacoRepo.save(taco);
order.addDesign(taco1);
return "order";
}
玉米卷
@Size(min=5, message = "at least 5 characters")
private String name;
設計控制器.java
@PostMapping
public String postTaco(@Valid Taco taco, Order order, Errors errors) {
if (errors.hasErrors()){
return "design";
}
Taco taco1 = tacoRepo.save(taco);
order.addDesign(taco1);
return "order";
}
@PostMapping
public String postTaco(@Valid Taco taco, Errors errors, Order order) {
if (errors.hasErrors()){
return "design";
}
Taco taco1 = tacoRepo.save(taco);
order.addDesign(taco1);
return "order";
}
參數Erroes errors
必須隱藏有效的對象參數,這里是Taco taco
聲明:本站的技術帖子網頁,遵循CC BY-SA 4.0協議,如果您需要轉載,請注明本站網址或者原文地址。任何問題請咨詢:yoyou2525@163.com.