我熟悉使用Spring的< form：errors>标签显示对象属性的验证错误,但是如何在类级别显示错误？

这是我正在谈论的一个例子：

@ScriptAssert(lang = "javascript",script = "_this.isExistingEmployee == true || (_this.phoneNumber != null && _this.address != null)",message = "New hires must enter contact information")
public class JobApplicationForm {

    @NotBlank(message = "First Name is required")
    private String firstName;

    @NotBlank(message = "Last Name is required")
    private String lastName;

    @NotNull(message = "Please specify whether you are an existing employee in another area")
    private Boolean isExistingEmployee;

    private String phoneNumber;

    private String address;
}

@ScriptAssert在此确认如果申请人表明他们是现有员工,他们可以跳过联系信息,但如果不是,他们必须输入.当此验证失败时,错误不在给定字段上,而是在类上.

在表单中,我可以使用< form：errors path =“firstName”>在字段上显示错误.我可以使用< form：errors path =“*”>一次显示所有错误(类和字段)但是如何隔离并显示类级错误？