用了这么久的Spring Boot，我们对Spring Boot的了解应该也逐步进入正轨了，这篇文章讲的案例也在我们的实际开发中算是比较实用的了，毕竟我们完成注册功能和对用户群发消息，都可以采用到邮箱发送功能，往下看，我们
I am building a LOB application that has a main section and a TabControl with various TabItems in it. On hitting save the idea is that any fields in error are highlighted and the first field in error
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