Thank you so much Zahid! you made my day :) As far as I can recall there aren't too much to do to release Struts 2.6. I hope it's going to be soon :)
Regards. >-----Original Message----- >From: Zahid Rahman <zahidr1...@gmail.com> >Sent: Sunday, November 24, 2019 2:10 PM >To: Struts Users Mailing List <user@struts.apache.org> >Subject: Re: Update views how to ? > >The advantages you have outlined in file ><apps/showcase/src/main/webapp/async/index.html> (quoted below) is >precisely the reason for my post . Now I feel struts2 is a complete framework >for >any imaginable application. Struts 2 is now a simple yet powerful , adaptable >framework. Please do what you need to do for version >2.6 to refine the last piece. > > > ><br/> ><h2>Example: A minimal chat room using server push</h2> <h3>Open current >page in different tabs, browsers and computers then send messages.</h3> ><h4>This is a minimal chat room which uses server push to retrieve new >messages. >It doesn't poll the server frequently to check if a new message is available to >display. >Instead it waits for the server to push back new messages. This approach has >two >obvious advantages: >low-lag communication without requests being sent, and no waste of server >resources and network bandwidth.</h4> ><h5>Reference: <a href=" >https://www.javaworld.com/article/2077995/java-concurrency/java- >concurrency-asynchronous-processing-support-in-servlet-3-0.html >"> >Asynchronous processing support in Servlet 3.0</a></h5> > > >On Sun, 24 Nov 2019, 08:09 Yasser Zamani, <yasserzam...@apache.org> wrote: > >> Hi Zahid, >> >> Additionally, AFAIK... >> >> If your users are a lot, then I think you have to wait for Struts 2.6 >> release where I've added support for Async actions. For an instance >> usage see my example at [1] (you can try it via running Struts 2.6 >> snapshot showcase - it's a simple chat room i.e. classic usage of server >> push). >> >> Otherwise or anyway, for now, you can try if Struts ExecAndWait is >> able to handle your users. >> >> Regards. >> >> [1] >> https://github.com/apache/struts/pull/179/commits/aee171c3b8ad40100661 >> 2c4df44ed540fb2ed7e3 >> >> >-----Original Message----- >> >From: M Huzaifah <mhuzaifah.i...@gmail.com> >> >Sent: Friday, November 22, 2019 6:57 AM >> >To: Struts Users Mailing List <user@struts.apache.org> >> >Subject: Re: Update views how to ? >> > >> >Hi, >> > >> >You should use stream mecanism for that case. What i've done, i used >> >JMS, message-broker, which mean the browser always listen to >> >message-broker >> server >> >using websocket (STOMP,AMQP,etc). When backend push message to the >> >broker server, browser automatically receive and render the message >> >to the >> browser. I >> >use ActiveMQ over MQTT, and render the message using javascript in >> browser. >> > >> >You can find another stream mecanism or reactive application example >> >out >> there. >> > >> >Regards >> > >> >On Fri, Nov 22, 2019, 10:06 Zahid Rahman <zahidr1...@gmail.com> wrote: >> > >> >> Hi, >> >> >> >> I have an admin screen (jsp) where the administrator updates >> >> values >> i.e. >> >> current weather temperature, cricket , football score, death >> >> counter showing people killed by knife crime in a city, natural >> >> causes , car accidents etc. >> >> >> >> >> >> I have at least two users who are looking at the current >> >> temperature or game score etc. (JSP). >> >> >> >> Once the administrator updates the values , the data viewed by the >> >> two users In their browser is now stale data , due to the fact the >> >> web browser is based on a stateless pull model. >> >> >> >> Is there an example app or maven archetype which shows how I can >> >> update or refresh the views (JSPs viewed in browser) in all the >> >> user sessions [views ] from inside the running application server >> >> using the >> >> struts2 framework. >> >> >>
