Tomcat8.5 修改sessionId的key和session追踪模式

web.xml 添加

<session-config>
   <session-timeout>2880</session-timeout>
    <!--cookie-config需要放在tracking-mode前面-->
   <cookie-config>
      <name>PHPSESSIONID</name>
      <http-only>true</http-only>
   </cookie-config>
   <tracking-mode>COOKIE</tracking-mode>
</session-config>