server push w java technologie

[Dick Meijaard]

Hello,

I wish that when ther is new information available that the page of te
website refresh immediatly.

Normally the most pages do it with a refresh method (polling or pull), I
prefer the push method, only refresh
when the information is changed. The server send a signal to the website (or
another application written by VB of Java)

Who help me with an excellent suggestion?

Dick Meijaard



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[Michael Borgwardt]

I wish that when ther is new information available that the page of te
website refresh immediatly.

Normally the most pages do it with a refresh method (polling or pull), I
prefer the push method, only refresh
when the information is changed. The server send a signal to the website (or
another application written by VB of Java)

Who help me with an excellent suggestion?

You can't really do this with Webapps, because HTTP is a request-response
protocol, with the request always coming from the client.

It can be faked with Javascript, by keeping a connection open with
a trickle of whitespace from the server and a reload/update comand
when necessary.