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How to include static content into Java apps?

fiquebem

We are running TS 6.5 SP2 on Windows 2000. We have 2 Web server boxes and 2 app server boxes. We have OD Receivers on the 2 Web server boxes.

We're just starting work on a new Web site. It consits of a whole bunch of static pages residing in TS and a few dynamic pages implemented via Java apps such as "Get Tickets."

In the static pages, we'll be using server-side include HTML files for the header, right-column and the footer.

We're not storing any JSP or Java code in TS itself. In fact, there's opposition to the notion of deploying from TS into the app servers.

So how can we get the Java applications to use the include files published from TS to the Web servers? Should we use iframes? AJAX?

What are the best practices?

Many thanks for any comments,

S.

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pammi

It all depends on the application you are calling from static HTML ..

Ajax Supports : Multithread,Statuses

iFrame Supports :Back Button,Cross-Site

Thanks

ISCBorisB

We are running TS 6.5 SP2 on Windows 2000. We have 2 Web server boxes and 2 app server boxes. We have OD Receivers on the 2 Web server boxes.

We're just starting work on a new Web site. It consits of a whole bunch of static pages residing in TS and a few dynamic pages implemented via Java apps such as "Get Tickets."

In the static pages, we'll be using server-side include HTML files for the header, right-column and the footer.

We're not storing any JSP or Java code in TS itself. In fact, there's opposition to the notion of deploying from TS into the app servers.

So how can we get the Java applications to use the include files published from TS to the Web servers? Should we use iframes? AJAX?

What are the best practices?

Many thanks for any comments,

S.

If your Web Server (not Application Server, Web!) is properly configured for SSI and if your 'inc' Files
are pure HTML you should be able to use the standard #include directive within your .jsp file.



It's absolutely trivial to test with the jsp/inc pair. Have you?

vy8359

Some sys.admins/Web admins dont linke server side includes for security reasons.

Try JSP include

vy8359

jsp:include page="included.html" flush="true"

groupby2.rptdesign

fiquebem

Hi Folks,
Thank you all very much for trying to help!

If your Web Server (not Application Server, Web!) is properly configured for SSI and if your inc Files are pure HTML you should be able to use the standard #include directive within your .jsp file.

Its absolutely trivial to test with the jsp/inc pair. Have you?

Yep; it doesnt work. The Web server passes JSP file requests to the App server, which doesnt do anything with the SSIs.
The < jsp:include> tag is restricted to the current context (application container), so its not useful to us. The JSTL tag works better, but it seems to require FTP or HTTP. We have a firewall that prevents outbound HTTP/FTP calls from our App server. We could use "http://localhost" to fetch files from the App server itself, though, but then wed be faced with deploying content to the App servers or mounting a share there.
The Dojo and even the plain AJAX calls from the browser seem to be too slow. As for < iFrame>, it was dismissed at my company as being something like a lose cannon.
The alternative were considering is deploying the include files, along with any application content, to a database and then performing DB queries from the application.
Cheers,
S.

ISCBorisB

Yep; it doesnt work. The Web server passes JSP file requests to the App server, which doesnt do anything with the SSIs...

Application Server is not supposed to do anything with the SSIs.

For troubleshooting, keep App Server out of the picture. Create rudimentary "Hello World" HTML Page, use SSI Include there
and place it on the Web(not APP) Server. Does it render correctly?

vy8359

ahh..No receiver on app server.

Try to implement SSIs as borris suggested.

Remember to check your webserver first.
To permit SSI on your server, you must have mod_include installed and enabled. Additionally, you must have the following directive either in your httpd.conf file, or in a .htaccess file: Options +Includes
(http://httpd.apache.org/docs/1.3/howto/ssi.html).

If your company is still adamant about doing it thru java then try some good old java.net code like ..

URL u;
String line;
try
{
u= new URL("http://localhost/.../xxxx.html");
DataInputStream html= new DataInputStream(u.openStream());
BufferedReader d = new BufferedReader(new InputStreamReader(html));
while(d.readLine()!=null){
out.println(d.readLine());
//close all stream.....
}

}
catch(Exception e)
{
// exception handling
}

BSAExample - Copy.xml

fiquebem

We don't need to troubleshoot SSIs -- they're working fine on our Web servers.

Instead of the Java code, we could use c:import, but we can't, because there's a firewall between the App and Web servers.

Incidentally, I didn't explain well why my company decided against iframes. Basically, it was because of the user experience.

I created a proof of concept for our Java developers: I deployed the include-file content (the "head" section of the HTML page where stylesheets and script files are sourced, the right-navigation column and the footer) to a database table. Then I read them from a JSP file. All worked as desired. But did they implement my proposal? No-o-o-o! As they say, you can lead a jackass to water, but you can't make him drink :-). Actually, they seem to be pressed for time and shelved my solution for a sunnier day.

Cheers,

S.