Problems encountered with redirect jumps:
When clearing the browser cache and cookies, and jumping to the PC landing page through the public landing page, a jsessionid parameter will be automatically added to the link of the landing page, for example: g.caipiao.163.com/activity/mobileValidateNoLogin_loadMainPagePC.html ;jsessionid=2s902rfrdg3js0ujsojf9ua?from=abc
In this case, it does not seem to affect the display of the page on the page, but there will be potential hidden dangers, and the jsessionid should not appear in the link.
Solution: http://blog.csdn.net/wilsonke/article/details/38704005
For related information, see: http://www.cnblogs.com/huzi007/p/4137045.html , http://blog.csdn.net/collonn/article/details/5698906