Apache Tomcat 重新启动会导致 Java 中的会话清除并且会话保留在 JSP 页面上
我在我的jsp页面中编写了一个jsp重定向，如下所示
<s:if test="#session.Doctor = true ">
<script type="text/javascript">
top.location.href = "dashboard";
<s:property value="#session.Doctor" />
</script>
</s:if>
当我重新启动Tomcat时，标签在我的jsp页面中打印true。但我在 struts 中编写了一个拦截器，它检查会话 System.out.println(session.get("doctorLogin")+"test"); 并打印 null当我重新启动页面时。这里我可以理解，当我重新启动tomcat时，会话在java中被清除，当我重新启动tomcat时，会话在jsp中保留。有人知道为什么这个会话在java页面中被清除而在重新启动tomcat时在jsp页面中没有被清除吗？有人有想法吗？
我使用 struts2、hibernate 和 tomcat6 作为服务器
谢谢。
I have written a jsp redirect in my jsp page like this
<s:if test="#session.Doctor = true ">
<script type="text/javascript">
top.location.href = "dashboard";
<s:property value="#session.Doctor" />
</script>
</s:if>
The tag prints true in my jsp page when I restart Tomcat. But I have written a interceptor in struts which checks the session System.out.println(session.get("doctorLogin")+"test"); and it prints null when I restart the page. Here I could understand that the session is cleared in java when I restart tomcat and session persist in jsp when I restart tomcat. Do anybody have an idea about how this why this session is cleared in java page and why it doesn't in jsp page when restart the tomcat. Does anybody have an idea?
I am using struts2, hibernate and tomcat6 as server
Thanks.
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if 标签中的测试是否损坏？
在java中，表达式
session.Doctor = true不会检查session.Doctor的值。相反，它为 session.Doctor分配值 true。尝试使用
Is the test in the if tag broken?
in java, the expression
session.Doctor = truedoesn't check the value of session.Doctor. Rather, it assigns the value true to session.Doctor.Try using
<s:if test="#session.Doctor == true ">(note the second equals)