Moving through the resultset
Hi All ! I want to select only a particula no of records from the database to display like goolge is doing.I don't want to select the entire set of resultset and process in the clientside or storing in the vector.If a table contains large no of records, I want to display it chunk by chunk.For that whenever i am contacting the database i want to select a set of records.Any ideas? __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Moving through the resultset
Check out scrollable result sets... === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Moving through the resultset
hi dear, if You are using MySQL database then use the following query. select * from abc limit 0,20 this will retrive only first 20 records. and in next page you can use the following query select * from abc limit 20,21 Regards Deepak Kumar http://www.geocities.com/deepak_38 --- ems vasudevan [EMAIL PROTECTED] wrote: Hi All ! I want to select only a particula no of records from the database to display like goolge is doing.I don't want to select the entire set of resultset and process in the clientside or storing in the vector.If a table contains large no of records, I want to display it chunk by chunk.For that whenever i am contacting the database i want to select a set of records.Any ideas? __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Moving through the resultset
From: EJB ForAll [EMAIL PROTECTED] and in next page you can use the following query select * from abc limit 20,21 should, I think, be: SELECT * FROM abc LIMIT 21,20 the first number being the offset to select from, and the second number being the number of results to retrieve. -- Philip McAllister [EMAIL PROTECTED] Web Applications Developer, ticketingsolutions === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: [Fwd: why scrape result does not show]
Could it be that you are working behind a firewall ? You probably have to run tomcat or programmatically set the system properties. -DproxySet=true -DproxyHost=11.22.33.44 -DproxyPort=8080 -- Peter Pilgrim Putting PLEASE HELP ME! URGENT HELP! in the E-Mail Subject: Line, will probably lead to the opposite intention. The Windows Trash Can Message History From: yu chen [EMAIL PROTECTED]@JAVA.SUN.COM on 13/06/2001 14:03 CST Please respond to [EMAIL PROTECTED] DELEGATED - Sent by: A mailing list about Java Server Pages specification and [EMAIL PROTECTED] To: [EMAIL PROTECTED] cc: Subject: [Fwd: why scrape result does not show] Hi, I just downloaded and configured the scrape tag lib. I, --CUT-- But when I open http://hostname/scrape/scrape.jsp, I don't see the scraped content but only the following, WHY?? Did I miss anything? --CUT-- -- This e-mail may contain confidential and/or privileged information. If you are not the intended recipient (or have received this e-mail in error) please notify the sender immediately and destroy this e-mail. Any unauthorised copying, disclosure or distribution of the material in this e-mail is strictly forbidden. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Please wait how to ???
You may use DHTML for this. Check out http://coldjava.hypermart.net/tips.htm -- Coldjava - server-side Java components http://coldjava.hypermart.net __ Get your own FREE, personal Netscape Webmail account today at http://webmail.netscape.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
dynamic inlcude and page context
Hi, Is it possible to do a dynamic include and to keep the page context ? I mean : If I used these lines in a test.jsp file : % String myUrl = test2.jsp; % jsp:include page=%=myUrl% flush=true / In the file test2.jsp I lost the page context of test.jsp. Is there a work around ? Bernard Granier Mr Ted 115 rue du Fbg Poissonniere 75009 Paris www.MrTed.com Tel : 33 1 55 31 02 65 mail : [EMAIL PROTECTED] === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: dynamic inlcude and page context
yes it is possible to dynamically include a jsp page regards raghu - Original Message - From: Bernard Granier [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, June 14, 2001 3:35 PM Subject: dynamic inlcude and page context Hi, Is it possible to do a dynamic include and to keep the page context ? I mean : If I used these lines in a test.jsp file : % String myUrl = test2.jsp; % jsp:include page=%=myUrl% flush=true / In the file test2.jsp I lost the page context of test.jsp. Is there a work around ? Bernard Granier Mr Ted 115 rue du Fbg Poissonniere 75009 Paris www.MrTed.com Tel : 33 1 55 31 02 65 mail : [EMAIL PROTECTED] === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: dynamic inlcude and page context
yes it is possible to dynamically include a jsp page but using iPlanet the original page context is lost in the included page. That my problem, Sincerly, Bernard Granier Mr Ted 115 rue du Fbg Poissonniere 75009 Paris www.MrTed.com Tel : 33 1 55 31 02 65 mail : [EMAIL PROTECTED] -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Raghu Babu Sent: mercredi 14 juin 2000 13:01 To: [EMAIL PROTECTED] Subject: Re: dynamic inlcude and page context yes it is possible to dynamically include a jsp page regards raghu - Original Message - From: Bernard Granier [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Thursday, June 14, 2001 3:35 PM Subject: dynamic inlcude and page context Hi, Is it possible to do a dynamic include and to keep the page context ? I mean : If I used these lines in a test.jsp file : % String myUrl = test2.jsp; % jsp:include page=%=myUrl% flush=true / In the file test2.jsp I lost the page context of test.jsp. Is there a work around ? Bernard Granier Mr Ted 115 rue du Fbg Poissonniere 75009 Paris www.MrTed.com Tel : 33 1 55 31 02 65 mail : [EMAIL PROTECTED] === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Stress Testing ?
Sorry this took so long: www.testmybeans.com for load and stress testing www.ejbquick.com for regression and performance testing and measurement www.mmsindia.com for checking and measuring source code quality www.parasoft.com for QA testing -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Mayuresh Kadu Sent: Wednesday, June 13, 2001 10:55 PM To: [EMAIL PROTECTED] Subject: Stress Testing ? hello all, i remember there was some talk/mail of some stress testing links for web-applications. Could anyone post/mail them again please ?! Mayuresh Kadu Pune, Mah, India http://www.mayureshonline.com [ Quote of the Month ] Design and programming are human activities; forget that and all is lost. Bjarne Stroustrup, 1991 == = To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Moving through the resultset
I think the best solution for this is James' pager taglib from http://www.jsptags.com Try it out, there is an example on his page. That way it is more dynamic, and you dont have to specify # to select in SQL stmt. Hope that helps --- EJB ForAll [EMAIL PROTECTED] wrote: hi dear, if You are using MySQL database then use the following query. select * from abc limit 0,20 this will retrive only first 20 records. and in next page you can use the following query select * from abc limit 20,21 Regards Deepak Kumar http://www.geocities.com/deepak_38 --- ems vasudevan [EMAIL PROTECTED] wrote: Hi All ! I want to select only a particula no of records from the database to display like goolge is doing.I don't want to select the entire set of resultset and process in the clientside or storing in the vector.If a table contains large no of records, I want to display it chunk by chunk.For that whenever i am contacting the database i want to select a set of records.Any ideas? __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets __ Do You Yahoo!? Spot the hottest trends in music, movies, and more. http://buzz.yahoo.com/ === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
File Dialog for serlvets or JSP
Hello all, Does somebody know if there is a File Dialog(prompts a window that request you the name of the file, like a save as) in JSP or in Servlets, I know there exits a class java.awt.FileDialog, but I don't want to use applets, so please tell me if there is another class that I can use from a server side. Thanks in advance, Lorena Carlo === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
possible concurrent access to data
Hi all, I'm really just after a bit of advice here I'm developing a jsp application which will be used to book timeslots over the web. The database has a record for each hour in the day, and timeslots are booked by storing the username of the person who booked it in a field in the row for a particular hour. If two users try to book the same timeslot at exactly the same time, I could get corrupted data. Since i'm using MSaccess for development, I can't incorporate locking the database row, so Ive done it like this: The actual booking (writing the username to the database) is done with a bean, and the booking method (which connects to the db, checks there's no username already there and then writes the current username with an UPDATE sql string), is synchronized. The bean has application scope. so firstly - does this sound ok? will it protect my data from concurrent access by making the second request wait? secondly - any ideas on how I can test this? I mean, the requests will have to happen at exactly the same so I can't be sure if check it manually. thanks, Paul === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Stress Testing ?
OpenSTA works well and it's free http://www.opensta.org There is also some very high end, tools at http://www.empirix.com/ Pete Freitag ([EMAIL PROTECTED]) CFDEV.COM ColdFusion Developers Resources http://www.cfdev.com/ -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Mayuresh Kadu Sent: Wednesday, June 13, 2001 10:55 PM To: [EMAIL PROTECTED] Subject: Stress Testing ? hello all, i remember there was some talk/mail of some stress testing links for web-applications. Could anyone post/mail them again please ?! Mayuresh Kadu Pune, Mah, India http://www.mayureshonline.com [ Quote of the Month ] Design and programming are human activities; forget that and all is lost. Bjarne Stroustrup, 1991 === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: Who know how to create a Connection Pool in Java?
Thanks. Rohit - Original Message - From: Haseltine, Celeste [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Wednesday, 13 June, 2001 9:13 PM Subject: Re: Who know how to create a Connection Pool in Java? Rohit, Mayuresh, There are a number of textbooks out on the market that describe how to create your own connection pool class bean, or even a servlet. I much prefer to use a third party driver which already has connection pooling, and then creating a singleton class surrounding the third party driver to instantiate connections and hand them off from within the driver's pool to the JSP, or even another class bean, and then returning that connection back to the singleton class, which in turn releases the connection back to the driver's pool. Extending your own java class beans from PropertyChangeListener, you can fire events from your own beans attached to the JSP, and have your singleton classes listen for those events relating to request for a connection from the pool, and releasing a connection to be returned to the pool. Take a look at Professional JSP by Wrox Press. This book has some good examples of connection pooling, and developing a singleton class to manage your connection pool. Celeste -Original Message- From: Mayuresh Kadu [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 13, 2001 4:15 AM To: [EMAIL PROTECTED] Subject: Re: Who know how to create a Connection Pool in Java? I am yet to start writing them towards connection pooling .. will keep u posted :) Mayuresh -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of kuttappan Sent: Monday, June 11, 2001 9:22 PM To: [EMAIL PROTECTED] Subject: Re: Who know how to create a Connection Pool in Java? I have decided to take the idea of writing my existing beans in such a way that currently they will use Connection Pooling. I would like to see your code and learn how to use Connection Pooling with beans. Thanks, Rohit. === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.255 / Virus Database: 128 - Release Date: 17/05/2001 === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: JSP and JavaScript and Beans
Can you describe in more detail as to what the problem using beans is. Source code and any error output would also be helpful. As for jsp's and javascript, you can include javascript in a jsp file just like you can include html tags. One thing to note is that with javascript, you have no interaction with the server before the result is sent to the client. Justy - Original Message - Hi Friends, I have tried to use JSP with JavaScript its working, but can anybody tell me the limitations of JSP with JavaScript. Also I have problems in using Beans in JSP while using jsp:useBean ... / tag though I am trying to run sample codes available from the books. Can anybody enlighten me? Thanks in advance Regards, Sharath === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Re: How to get rid of objects ( beans) when the user abandons the site
To address the first question, a session's lifetime ends when one of the following occurs: - a user leaves your site and the user's browser does not accept cookies - a user quits the browser - the session is timed out due to inactivity - the session is completed and invalidated by the servlet - the user logs out and is invalidated by the servlet And like Shawn said, a new browser window created from the current browser will extend the session. If you bring up a new browser altogether then a new session will be created. Justy - Original Message - remind me someone exactly when the session ends. clearly it ends in both ie and netscape when the browser window is closed. .. but if you open a new browser window with crtl_n does the session extend to that window? ..if you open a new window other than as above what happens. thanks chris -Original Message- From: Shawn Zhu [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 13, 2001 4:49 PM To: [EMAIL PROTECTED] Subject: Re: How to get rid of objects ( beans) when the user abandons the site If the user leaves your site, and before the session times out he/she comes back, the session object (your worker bean) will still be there. So yes, the worker bean will be waiting for the session to expire. -Original Message- From: Lenin Lopez [mailto:[EMAIL PROTECTED]] Sent: Wednesday, June 13, 2001 4:07 PM To: [EMAIL PROTECTED] Subject: Re: How to get rid of objects ( beans) when the user abandons the sit e Thanks guys, let me see if I understand correctly, That means if I create objects in a servlet and put them in a session using the session.setAttribute, and if I use those objects in a jsp file. what you are saying is that I should not worry about unbinding the objects from the session??? In other words I do not need to use the session.invallidate() to unbind the objects?? Let me give you a scenario of my problem let say my JSP uses a worker bean (whose reference is store in a session ) to display a list of available accounts from my DB, now that same page give the user the option to delete one of the available accounts from the list, ( at this moment I still have a reference to my worker bean in a session ) The user can continue with the deletion of one of the accounts on the list or the user can JUST LEAVE the site, if the user decides to do so, at this point, WHAT happens to my worker bean ( in the session ) remember I did not invalidated it because I was going to use it in a future JSP ( assuming that the user was goint to continue with the process of deletion) Since the user as I said JUST LEAVES the site. How do I reclaim the memory in use by the session. Do I just wait until it expires??? What if I have more than one object in the same situation?? Thanks a lot for your input -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Chandra Patni Sent: Wednesday, June 13, 2001 1:12 PM To: [EMAIL PROTECTED] Subject: Re: How to get rid of objects ( beans) when the user abandons the sit e You can't get rid of objects as such because that's what GC is doing for you. All the object u are creating in your JSP will follow the same GC rule as other object created in any method. For beans you can specify the scope mechanism to control how long you want to keep the reference handle. I will NEVER suggest you finalize() method to do some 'smart things'. By overriding finalize(), you are effectively increasing the life of the object as GC now has to deal with this object at least twice. Regards, Chandra Patni Oracle Corp -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Lenin Lopez Sent: Wednesday, June 13, 2001 12:51 PM To: [EMAIL PROTECTED] Subject: How to get rid of objects ( beans) when the user abandons the sit e HI all, My question is how to get rid of object ( to avoid memory leaks) when the user 'just' abandons the site is there any way I can detect when the user leaves the page so I can triger some kind of event to get rid of my objects? Please Help Thank you all == = To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets == = To
Re: URGENT---JSP problem on WebLogic6.0
getRealPath() is allowed to return null. For instance, if the web
application is run out of a war file, there is no real path to the webapp
because it isn't stored in files. Tomcat 4.0 can run directly out of a war
file and would also return a null value for getRealPath() in this case.
Justy
- Original Message -
Guys...
I am trying to do this stuff in a JSP page.
It shows me different behaviours on different app servers.It works fine on
TOMCAT but not on WebLogic6.0.
Apparently getRealPath() does not function on WebLogic6.0 and returns
null.Hence i am not getting expected results.
Can anyone help me out on this.Do we have something similar to
getRealPath()
on webLogic6.0? Or how can i tweak this existing code so that it works on
WebLogic6.0
thanx in advance
abhi
public String getHelpUrl(String file_name){
String dir_name = ;
String docRoot = ;
String relPath = ..;
String abs_file= ;
docRoot = getServletConfig().getServletContext().getRealPath(/);
System.out.println(root === + docRoot);
dir_name = /xxx/foundation/help/defaultlocale/;
abs_file = docRoot + dir_name + file_name +.html;
System.out.println(Absolute file === + abs_file);
File logDir = new File(abs_file);
System.out.println(dir === + logDir);
System.out.println(is present === + logDir.exists());
if(logDir.exists())
return relPath + dir_name + file_name + .html;
else
return relPath + dir_name + book.html;
}
_
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Re: How to get rid of objects ( beans) when the user abandons the sit e
There are a few things you can do. First, and not always recommended, is use the onUnload= in the body tag of a JSP page. When the user leaves the page (closed browser, goes to another site, etc) you can call a javascript routine that can then call the server with a specific request. I am not sure, to be honest, if this works. I haven't tried it yet. The only thing I can think of why it wouldn't work is if the window closes before the unOnload handler is fired and carried out. Is it a matter of speed (does the browser exit code wait for any unOnload routines to finish up..or just arbitrarily close and not care what might still be running in the client-side javascript context)..no idea. The other thing to do..is set the session time-out to a really short period of time. Then, use a META tag to set a timer on the page to monitor inactivity. Set it about 2 minutes shy of what the server-side timeout is, just incase their is network traffic and what not and the page gets back to the browser slowly thus the timer on the page may not run out until after the session-timeout on the server for that session. However, because this isn't exactly in sync (browser to server), I don't recommend this much. You can also specify in a message or something that the user has x minutes to make a choice. If the choice is made after that period, they will be presented with a page that lets them know their session expired. Lastly, the approach I like best, but also requires a bit of download time, is to use an applet on every page. The first time a user comes to the site, the download of the page may take 20 second or longer though. You can circumvent this by having just hte JSP pages involved in the transaction(s) use applets. At any rate, by using an applet and javascript, you can actually communicate with the server without ever changing the browser page. JavaOne did this last year on their site. You checked off a checkbox, and behind the scenes the applet updated something on the server, and the page updated without a request going to the server. IT was very slick. Even better, if every page uses an applet, you can monitor EXACTLY where each and every person is on your site, without having to log it and pull a query on the database to figure it out. You can also send pop-up messages and many other things to any one on your site. For example, you can broadcast a message from your server out to every client connected, which pops up a message telling them the server will go down soon. Its very kewl stuff..but it does involve a bit more code to get it working. I saw it done using standard sockets programming..haven't yet done it myself. Basically, the applet makes a socket connection to the server, and two-way communication can occur. The only problem I see with this is a socket to the server is left open, so that you can communicate with the applet. I don't imagine its something you would want to do on a high-bandwidth e-commerce site. But, a b-2-b site with not tons of people connected at the same moment might work well. My point of the applet..is that you can send a message from an applet to the server when the browser closes or user leaves the site. The applet has some exit method capability that can then send off that last communication telling the server to free up the memory, invalidate the session, etc. Good luck. -Original Message- From: A mailing list about Java Server Pages specification and reference [mailto:[EMAIL PROTECTED]]On Behalf Of Lenin Lopez Sent: Wednesday, June 13, 2001 4:07 PM To: [EMAIL PROTECTED] Subject: Re: How to get rid of objects ( beans) when the user abandons the sit e Thanks guys, let me see if I understand correctly, That means if I create objects in a servlet and put them in a session using the session.setAttribute, and if I use those objects in a jsp file. what you are saying is that I should not worry about unbinding the objects from the session??? In other words I do not need to use the session.invallidate() to unbind the objects?? Let me give you a scenario of my problem let say my JSP uses a worker bean (whose reference is store in a session ) to display a list of available accounts from my DB, now that same page give the user the option to delete one of the available accounts from the list, ( at this moment I still have a reference to my worker bean in a session ) The user can continue with the deletion of one of the accounts on the list or the user can JUST LEAVE the site, if the user decides to do so, at this point, WHAT happens to my worker bean ( in the session ) remember I did not invalidated it because I was going to use it in a future JSP ( assuming that the user was goint to continue with the process of deletion) Since the user as I said JUST LEAVES the site. How do I reclaim the memory in use by the session. Do I just wait until it expires??? What if I have more than one object in the same situation?? Thanks a lot for
dynamically altering a table...
List fellows, Help. I displaying a table of data that will start blank. The table defaults to 20 rows. Required functionality states that I have to be able to add and remove rows from any position on the table. More difficult is that I have to redisplay information that may have been entered in the table prior to deleting a row. Example: There are three rows. The user has decided to delete the 2nd, or middle row. As it is the current method is for the user to enter in a text field the row number to delete, but this could be a checkbox at the head of each row (I'm waiting for approval on this change actually...) Now how do I: 1. Manage the retention of the currently entered data for the three rows? 2. Reinsert the data for row 3 into row 2 when I'll have on the request information in a format something like: ?first_name_1=boblast_name_1=smithfirst_name_3=timlast_name_3=may where row 2 has not posted because I have disabled the fields and intend to remove the row. I'm sure that this kind of thing has been done... I just have never did it and need a mentor. Any help would be greatly appreciated. Is there an example out there that I can look at. Thanks. Tim === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Why I can see my source in my application server?
Excuse me, I use Tomcat + Aparch, but I can see my source file in my Application server? I want to know why? thanks Lancelot === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
web logic server
Friends, I have problem with weblogic server. I have installed the same on my NT workstation and then i am clicking on start default server icon which opens a command prompt and asks for password. I give the one which i had assigned during installation. The server still doesnt start. and when i am going through services in control panel and starting the service, it gives error 2140, nt authentication. Please help.. regards, piyush. _ Chat with your friends as soon as they come online. Get Rediff Bol at http://bol.rediff.com === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
Code example for web services
While I'm waiting for the JavaOne slides to be posted, does anyone have a simple online example of an XML web service implemented with a Java client and servlet? Thanks Dave Bolt Whenever something difficult becomes easy, two impossible things become difficult. - Jim Buyens === To unsubscribe: mailto [EMAIL PROTECTED] with body: signoff JSP-INTEREST. For digest: mailto [EMAIL PROTECTED] with body: set JSP-INTEREST DIGEST. Some relevant FAQs on JSP/Servlets can be found at: http://java.sun.com/products/jsp/faq.html http://www.esperanto.org.nz/jsp/jspfaq.html http://www.jguru.com/jguru/faq/faqpage.jsp?name=JSP http://www.jguru.com/jguru/faq/faqpage.jsp?name=Servlets
