sessionCookiePath属性在我的tomcat7服务器上不起作用。

I deployed two web applications on my tomcat server, i hope they can share session data between each other. so i add an attribute sessionCookiePath="/" into the Context tag in context.xml file. but after restart the server, it still set the cookie with application path, such as "Set-Cookie: JSESSIONID=7200fce5-8aee-4d95-b4d8-4ab586dba152; Path=/webapp1; HttpOnly"!I deployed two web applications on my tomcat se