AppMod pooling with Servlets and JSPs

Issue:
I have a servlet that I need to do some work on a BC4J View Object (myVO), like set the where clause, execute, etc. I want to perform these actions in the servlet, and then forward on to a .jsp page (mypage.jsp). Then I want to use the BC4J Data Tag library to present the data. Normally, the AppMod tag would be used to get ahold of an AppMod, but in my case, I want to use the specific AppMod that I prepared inside the servlet that forwarded to mypage.jsp.
I have looked through the BC4J Data Tag library and it appears that the data tags are getting the AppMod from the page context. I looked at the AppMod tag and I couldn't see exactly where it was sticking the AppMod into the page context, but when I looked at the DataSource tag, it was retrieving the AppMod from the page context. Therefore, I am assuming the AppMod tag is sticking it into the page context.
What I would like to be able to do is perform some work on the AppMod in my servlet, then forward to a .jsp. Once in the .jsp, I would like to reference the AppMod without having to use the AppMod tag, but reference the AppMod directly from the DataSource tag. This would allow me to completely manage the AppMod interaction in my servlet, thus centralizing that logic and avoiding multiple check-ins/check-outs of the AppMod. I could also avoid using stateful management of the AppMod.
Any insights would be much appreciated!
Thx,
Eric

Core Servlets is pretty good. I have both parts.
One day I'm actually going to read them.you mean these two right?
Core Servlets and Javaserver Pages: Core Technologies, Vol. 2 (2nd Edition) (Core) by Marty Hall, Larry Brown, and Yaakov Chaikin
Core Servlets and JavaServer Pages, Vol. 1: Core Technologies, Second Edition by Marty Hall and Larry Brown
I should buy the Vol 1 first right?

Similar Messages

Creating FOrums with Servlet and JSP

Hi everyone,
Is there a good resource that explains how to build a forum using servlets and JSP technology?
Regards,
Basil Mahdi

please let me know here if you find any useful resources...I am in the process of writing my own searchable threaded forum for my company with JSP's/servlets. It's a very slow process at the moment though...if I ever finish it, I'll gladly share it.

Help with servlet and JSP

I am creating a web application that allows users to submit questions and answers to a database. The users can also specify a number of questions and take a randomly generated test from the questions that have been submitted to the database. Currently, I am having trouble figuring out how to generate the test and then grade it. I was thinking I would use a question page that displayed a random question and its answers, allowed the user to answer the question and submit it, and then have the page reload with a new random question from the database. After the user has answered the number of questions they specified, then it would go to a results page with the percent and grade. I'm having trouble figuring out a servlet for the test generation. Any help would be much appreciated.
Thanks, Mike
[email protected]

Please provide more information on exactly what the problem you are having is.
For example: The following sentence you provide doesn't really say what the problem is:
" I'm having trouble figuring out a servlet for the test generation."

When to use servlets and jsp in an application like shoping cart?

Hi All
I m going to design and implement a web application using servelts and jsp. I am still at its requirements analyze stage.
The application is almost likely a shopping cart. So if any of you have the deep knowledge about this domain with servlets and jsp please help me for a good design. What I realy need to know is that
1. what are the core requirements for a shoping cart ?
2. use cases ?
3. best way to follow mvc with servlets and jsp for it?
you can answer to this at the abstract level. no need to go in detail.
if you have any documents like design and use cases mail me to [email protected]
your cooperation is highly appreciated in this regards.

Look into this kid
http://www.apl.jhu.edu/~hall/java/Servlet-Tutorial/Servlet-Tutorial-Session-Tracking.htm

Servlet and JSP in OAS

I'm developing web application with OAS
4.0.8.1 and JDeveloper 3.0 and I want to call
JSP from servlet using "RequestDispatcher".
I downloaded JSP for OAS from www.olab.com.
In the Release note, there is a description
about RequestDispatcher, but I cannot
understand about details.
In what configuration can I use servlet and
JSP together with RequestDispatcher. Anyone
scceeded about that?
null

wan (guest) wrote:
: Hi everyone,
: I am using OAS 4.0.8 on Solaris 2.6. After viewing servlet
: and JSP samples, I am kind of confuse whether OAS supports the
: following options
: 1. JSP
: 2. servlet chaining
: 3. running JDeveloper DB Servlet wizard
: (oracle.jdeveloper.servlet.*) and Java Business Objects
: (oracle.jbo.rt.cs)
: Thank you for your time.
I found a white paper 408newfead.pdf, that says under "Future
Directions" that it will add jsp support. I read somewhere (I
can't remember where exactly :( ) that said 4.0.8.1 would
support
JSPs. I don't know if this release is out yet.
I wish Oracle would get with the times and put out a product that
is consistent with the technology they are touting as the
future.
Having us download Suns server to run servlets and JSP is
ridiculous for the worlds second largest software company!
null

InterMedia Java Classes for Servlets and JSPs and Netscape

I am using the interMedia Java Classes for Servlets and JSPs to upload and retrieve multimedia data. I have found that it is much more performant in Internet Explorer (5.5) than in Netscape Communicator (4.7). In fact, I cannot upload images larger than 10K at all using netscape. However, the same image can be uploaded into the same application using IE. Is this a known issue?
Thanks in advance.

Hi,
We have successfully uploaded multimedia data in the giga-byte range (Quicktime and AVI files) at the same speed with both the Netscape (4.7n) and MS IE (4.n and 5.n) browsers. One thing we have noticed is that its very important to set the manual proxy settings correctly if you have an environment with a proxy server. If you don't, then uploads can go via the proxy server and, for some reason, that seems to take considerably longer. For example, suppose you are in the www.xyzco.com domain and are connecting to a host named webserver.www.xyzco.com, then specify webserver and webserver.www.xyzco.com (to cover both cases) in the "Do not use proxy servers for..." box in the manual proxy server configuration screen. Also, if you're using a tool such as JDeveloper that uses the host IP address in the debugger environment, then you also need to add the numeric-based (nnn.nnn.nnn.nnn) IP address to this list.
Hope this helps.
In order to better understand the variety of ways in which our customers are using interMedia, we'd be very interested in knowing a little more about your application, the interMedia functionality that you are using, and how you are developing and deploying your application. If you are able to help us, please send a short email message with some information about your application, together with any comments you may have, to the Oracle interMedia Product Manager, Joe Mauro, at [email protected] Thank you!
Regards,
Simon
null

JDBC installation for servlets and jsp

Hello All,
I am trying to use JDBC for my web application. i have a book but not very detailed and cannot find a good search on google.
they have said that the ODBC-JDBC bridge driver comes with jdk1.2 or forward. and ask me to set up an ODBC data source. so i went in control panel/systems tab and then try to add SQL and then when click finish it asks me how to connect to sql server, i entered my usename and password but says connection failed.
This is my worst nightmare. please help so i can start building web application using servlets and jsp.

Let me tell you right now, you have BORING nightmares.

Web hosting for servlet and jsp

i m looking for web hosting service which provide support for servlet and jsp
i m looking for both type i mean paid web hosting and also free
free for my r&d purpose and paid to host my client web site which i created using JRUN.

thanks i got some isp
but i m also looking for free service also
for my r&d purpose
if u know any , pls tell me also
i got one www.mycgiserver.com of this kind but there is some problem with this site i want to know if there is any other site also

Apache web server / run Servlets and JSP

Hello. I need to know how to run servlets and JSP's with Apache web server

install Tomcat and use it alongise of apache. Apache cannot serve either servlets or jsp's on its own

URGENT.........File Upload using Servlets and jsp

I am a new servlet programmer.......
iam using tomcat server......
can any one pls help in writing code for file upload using servlets and jsp without using multipart class or any other class like that....
Please URGENT..

Slow down! "Urgent" is from your perspective alone. I, myself, am not troubled or worried in the least.
hi ugniss
thanks for ur reply....sorry i was not
y i was not asked not to use multipart class or any
other class like that...is there any other
possibility to do file uploading from jsp to
servlet...
Just as an aside, a JSP is a Servlet. But even if I move beyond that, the question does not make sense. If you want a "JSP to upload to a Servlet", then simply do so in memory. You are still (likely) within the same scope of a given request. However, if instead you are referring to a JSP that is displayed on a browser, then really you are talking about HTML, which is what the browser will receive. And since you are now talking about a browser, your only real, viable option is a multi-part file upload. So, it is either server or it is browser. And either way, the question leads to very established options, as outlined above.
the main concept is.. in the browser the user selects
a particular file and clicks the button upload..after
clicking upload the jsp should sent the file to the
servlet in streams...there the servlet gets in and
saves in a server location........this is wat i hav
to do...
Okay. So, after reading my previous (redundant) paragraph, we have arrived at the crux of the issue. You have a JSP that will be output as HTML to a client (browser) which you want to upload content to your server (handled by a Servlet). So, you are now stuck again with multi-part. The requirement to not use multi-part is non-sensical. You can overcome it, say, if you write your own applet or standalone Swing client. However, if your users are invoking this functionality from a browser, you are limited by the options that W3C has provided you. Use multi-part.
is there aby possibilty to do this.....can any one
pls help....Take the advice to download and review Jakarta Commons FileUpload. Inform your management that their requirement makes no technical sense. Research on your own. There are dozens of examples (and tutorials) on file upload using multi-part. Embrace it. Live it. Love it.
- Saish

How to use servlets and JSP for my homepage?

servlets and JSP are server-side program. If my homepage is on some web-hosting websites, can I upload the servlets and JSP to run it? if possible, where can I find such a web-hosting place?
sraiper

Not many hosts offer JSP or Servlet support (and some do but then stop and never give you a refund, grrrrrrr!!!!).
Also, ones that do support it can often be more expensive. There are some free ones but all the one's I've come across have problems that made them unsuitable for my needs.
Here is a list of hosts that support Java:
http://www.thejspbook.com/resources/category.jsp?id=1005&name=JSP+web+hosting
I can't comment on any from that list, however I use http://www.positive-internet.com they are a bit pricey but they have excellent support and are always happy to help with any Tomcat (the JSP/Servlet server they use)configuration issues or needs that you may have.

How to master good design with EJB and JSP?

I use JSP to calling EJB. But the .jsp file is complex and it's difficult to maintain...I just want to work higher efficent with EJB,JSP and JavaBean. I want to know is there a good design with EJB and JSP? and is there any good material about MVC for EJB,JSP and JavaBean?

You should read the J2EE blueprint available on this website. Better download the PDF, and print it for yourself so you can read it anytime.

Serving Java Servlets and JSP

I have a small hosting company and was wondering what is required to be installed on a Win2k Server to host Java Servlets and JSP pages for a client of mine?

Ah, so you just want to add a servlet engine to IIS5?
Tomcat can be used as a plugin for IIS. Check out the Tomcat FAQs - somewhere in there you should find one relating to using Tomcat as an IIS plugin. They're far more comprehensive than I could ever hope to be on the matter!

Eclipse Plugins for Servlets and JSP.

Hi Guys,
Can any one suggest where i can get the eclipse plugins for Servlets and JSP. May i am wrong posting this question in this forum. I already browsed thru all the forum to get the info but in vain. so any help will be appreciated.
Thank You,
cheers,
thrinath.j

[url http://www.eclipse.org/webtools/]http://www.eclipse.org/webtools/
Regards

Differences between WL or Netscape for Servlets and JSP's

What are the advantages / disadvantages of running Servlets under WL,
          vs. say, running them in Netscape's servlet engine? Assuming EJB
          container is run separately, either one of these could make calls to the
          WL EJB server, so perhaps it would be simpler and faster to run servlets
          and JSP's under Netscape, and have them call via t3 into a weblogic
          server for EJB's?
          Thoughts
          david
          David Michaels <[email protected]>
          Director of Technology
          ShockMarket Corporation (650) 330-4665
          [david.vcf]


David,
          One of the major reasons to run your servlets on Weblogic is that we have an
          optimization that allows us to pass by reference objects when calling from
          servlets to EJB. This makes things much faster.
          A number of our customers, in addition, have seen performance problems when
          using other servlet engines. It just seems to cause problems due to their
          threading models etc.
          Finally, our servlet engine is by far the most mature and robust on the
          market today. Our JSP implementation is also the best in terms of
          performance.
          Thanks,
          Michael
          Michael Girdley
          WLS Product Manager
          David Michaels <[email protected]> wrote in message
          news:[email protected]..
          > What are the advantages / disadvantages of running Servlets under WL,
          > vs. say, running them in Netscape's servlet engine? Assuming EJB
          > container is run separately, either one of these could make calls to the
          > WL EJB server, so perhaps it would be simpler and faster to run servlets
          > and JSP's under Netscape, and have them call via t3 into a weblogic
          > server for EJB's?
          >
          > Thoughts
          >
          > david
          >
          > --
          > David Michaels <[email protected]>
          > Director of Technology
          > ShockMarket Corporation (650) 330-4665
          >
          >

AppMod pooling with Servlets and JSPs

Similar Messages

Maybe you are looking for