session.SPRING_SECURITY_LAST_EXCEPTION.message 为空报错 原创

Caused by: org.thymeleaf.exceptions.TemplateProcessingException: Exception evaluating SpringEL expression: "session.SPRING_SECURITY_LAST_EXCEPTION.message" 

复制HTML<span class="tip-font" id="tipMsg2" th:text="${session.SPRING_SECURITY_LAST_EXCEPTION.message}"></span>
1

session?.SPRING_SECURITY_LAST_EXCEPTION?.message   在每个"."前面增加?  即可  

复制HTML<span class="tip-font" id="tipMsg2" th:text="${session?.SPRING_SECURITY_LAST_EXCEPTION?.message}"></span>
1

参考：https://blog.csdn.net/qq_24084605/article/details/81098248