在Spring验证批注中使用消息的参数

Question

In this kind of code that adds a validation constraint to an attribute of my command class:

@NotBlank(message="{xxx.constraints.username.required}")

how can I pass parameters to the message? In fact I would like the message to be a template, is it possible?

Thanks!

Answer 1

I think your best bet is to use SpEL (Spring Expression Language).

@NotBlank(message="#{T(com.my.package.MyUtil).getMessage()}")

The above would call a static method getMessage() from the com.my.package.MyUtil class.