spring验证中的java@Notnull和@Pattern无效

Question

我有一个getter方法，如下所示：

@NotNull
@NotEmpty
@Pattern(regexp="[0-9]{6}")
@XmlAttribute(name="CustomerID")
public String getCustomerId() {
    return customerId;
}

留言。房地产

NotEmpty.customerForm.customerId = CustomerID required
NotNull.customerForm.customerId = Customer ID required
Pattern.customerForm.customerId = Ship To Account must be a valid number 

但即使我将CustomerId保留为空白或空，它也会始终显示消息Ship To Account必须是有效的数字，而不会显示Customer ID required消息