英文:
Thymeleaf returning Java Exception message instead of my custom error message. How can I make it return what I want?
问题
我正在实现表单验证，在 Thymeleaf 的错误消息中对 BigInteger 进行验证时遇到问题。这是我的属性注释：
@Digits(integer = 9, fraction = 0, message="必须是正整数")
private BigInteger myInteger;
控制器部分：
@PostMapping("/")
public String whatever(@Valid @ModelAttribute Entity myEntity, BindingResult result) {
if (result.hasErrors()) {
return "index";
}
//TODO
return "index";
}
最后，HTML 代码部分：
<span th:if="${#fields.hasErrors('myEntity.myInteger')}"
th:errors="*{myEntity.myInteger}"></span>
现在，这对于我的其他 BigDecimal 变量效果良好，但是 BigInteger 导致 Thymeleaf 显示 NumberFormatException 而不是我的自定义消息 "必须是正整数。"，可能是因为我不熟悉的一些错误处理优先级的原因。我已经尝试寻找答案，但大多数答案都指向了基于 messages.properties 的解决方案，而我项目文件夹中没有这个文件。我需要做什么才能确保显示我的自定义消息而不是 NumberFormatException？
英文:
I am implementing form validation and running into problems with BigInteger validation in thymeleaf's error messages. Here is my property annotation:
@Digits(integer = 9, fraction = 0, message="Must be a positive integer")
private BigInteger myInteger;
The Controller:
@PostMapping("/")
public String whatever(@Valid @ModelAttribute Entity myEntity, BindingResult result) {
if (result.hasErrors()) {
return "index";
}
//TODO
return "index";
}
And finally, the HTML code
<span th:if="${#fields.hasErrors('myEntity.myInteger')}"
th:errors="*{myEntity.myInteger}"></span>
Now, this is working fine for my other BigDecimal variables, but BigInteger causes Thymeleaf to display a NumberFormatException instead of my custom message "Must be a positive integer.", presumably because of some priority in error-handling that I am unfamiliar with. I have tried looking for answers but most of them direct me to some messages.properties based solution, which is not present in my project folder. What do I need to do to ensure my custom message is displayed instead of the NumberFormatException?
答案1
得分: 1
你可以在 resources 文件夹中创建 messages.properties，然后添加 typeMismatch.table.myInteger = 必须是正整数。其中“table”是你的实体名称，使用小写形式。
英文:
You can just create messages.properties in resources folder and add typeMismatch.table.myInteger = Must be a positive integer . Where "table" is your entity name in lower case.
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