Thanks to you guys. Now I succeed implement session parameters that I expected to appear in Struts2 action by implement with SessionAware.
On 2020/08/27 18:31:20, Lukasz Lenart <lukaszlen...@apache.org> wrote: > czw., 27 sie 2020 o 13:17 Natta Wang <xeno...@gmail.com> napisał(a): > > > > I start to migrate from Struts 1 to Struts 2 and found a problem that I > > want to ask for help with the session. > > > > In Struts 1 web.xml, I have a Filter class that maps to servlet and when it > > be called, it will set a parameter with an object. > > > > All Struts 1 JSP pages can access the session that has those parameters, > > and what I did to the new Action class of Struts 2 is implements with > > SessionAware, > > in the class if found session object by > > ServletActionContext.getRequest().getSession(), but cannot found the > > parameter with the parameter name that I expected it has. > > > > What I tried is added new filter-mapping in the web.xml file, which map > > url-pattern to Struts 2 Action class (same with that mapped to servlet I > > mentioned above), hope it will be called when opening with a specific URL > > but I failed as it comes out like the not set version. > > > > Can someone guide me on how to make the session and all parameters visible > > in the Action class and JSP page? > > > > And one more thing, I use <s:include> the header page and header page also > > refers to those session parameters. Do I need to implement any > > configuration to make header JSP can access the session? > > By using SessionAware, the session is going to be injected in your > action [1], in tags or JSPs you can use a named scope #session [2] to > access the attributes. But please be aware that Struts2 won't create > the session if it doesn't exist. You must use Session Create > Interceptor [3] to forcly create the session. > > [1] https://struts.apache.org/core-developers/servlet-config-interceptor.html > [2] > https://struts.apache.org/tag-developers/ognl-basics#struts-2-named-objects > [3] https://struts.apache.org/core-developers/create-session-interceptor.html > > > Regards > -- > Łukasz > + 48 606 323 122 http://www.lenart.org.pl/ > > --------------------------------------------------------------------- > To unsubscribe, e-mail: user-unsubscr...@struts.apache.org > For additional commands, e-mail: user-h...@struts.apache.org > > --------------------------------------------------------------------- To unsubscribe, e-mail: user-unsubscr...@struts.apache.org For additional commands, e-mail: user-h...@struts.apache.org
