urgent!!!---Re: does struts has the functionality?
I have a question about using jspTags pager(http://jsptags.com/tags/navigation/pager/ ). Anand, I am sorry to send this email to you directly. I know you are expert on using jspTags pager. I urgently need your help. I hope you can recieve my email, and help me! If someone has used the jspTags pager before, please help me!! I am stunk here. Senario: There are lot of payments history records for a user. I will retrieve 500 records from DB at one time, and put them into session. When the next 500 records are retrieved, they will replace the first 500 records in the session. For example, if a user have 1200 records totally, at first time, the first 500 records will be retrieve from DB. To display the records, I use jspTags pager (http://jsptags.com/tags/navigation/pager/). On one page, 50 records will be displayed. So the first 500 records will be displayed on 10 pages. When user click on the last page(10th page), I want the next 500(501-1000) records to be retrieved, replace the first 500 records in the session, and then to be displayed to user. To achieve this, in my action class, I need to keep track the page number that the user click on.When the action class find that the last page(10th page) is clicked, The next 500 records will be retrieved, and be displayed to user. My Jsp name: paymentHistory.jsp My status and problem: The first 500 records can be displayed on 10 pages correctly. When I click on the page index(for example, I click on page 2), the URL changed to http:///rootcontext/paymentHistory.jsp?pager.offset=50. BUT MY ACTION CLASS IS NEVER BE CALLED.I AM STUNK HERE!!! My question: 1. How can I make the my action class to be called whenever user click on a page index?( I tried put html:form action=paymentHistory.do in my paymentHistory.jsp. but it shows same result. So I guess when user click on page index, it does not submit the form). 2. How can I pass pageNumber as a request parameter? (I tried put pg:param name=pageNumber / inside pg:pager. It doesn't show pageNumber on URL. I also tried to put ?number=%= pageNumber % in the line a href=%= pageUrl %?number=%= pageNumber %%= pageNumber %/a. It doesn't work. The following is my paymentHistory.jsp: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN %@ page language=java import=org.apache.struts.webapp.example.Payment % %@ taglib uri=/WEB-INF/struts-bean.tld prefix=bean % %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % %@ taglib uri=/WEB-INF/struts-logic.tld prefix=logic % !-- for page navigation-- %@ taglib uri=http://jsptags.com/tags/navigation/pager; prefix=pg % html:html locale=true head titlehistory/title META name=GENERATOR content=IBM WebSphere Studio /head body table align=center cellspacing=0 cellpadding=0 border=0 width=480 tr td align=centerPayment History/td /tr /table hr !--This following table is used to display account history-- table align=center cellspacing=0 cellpadding=0 border=0 !-- payment history header -- logic:present name=payments tr td Amount /td td Balance /td /tr html:form action=/paymentHistory.do pg:pager maxPageItems=1 logic:iterate id=aPayment name=payments scope=session tr pg:item td bean:write name=aPayment property=amount/ /td td bean:write name=aPayment property=balance/ /td /pg:item /tr /logic:iterate /table !-- page navigation area -- pg:index pg:prev a href=%= pageUrl %[ (%= pageNumber %) Previous ]/a /pg:prev pg:pages a href=%= pageUrl %%= pageNumber %/a /pg:pages pg:next a href=%= pageUrl %[ Next (%= pageNumber %) ]/a /pg:next /pg:index /pg:pager /html:form /logic:present /body /html:html Thanks for your help. -Original Message- From: Jenny [mailto:[EMAIL PROTECTED]] Sent: Saturday, September 14, 2002 12:14 PM To: Struts Users Mailing List Subject: Re: does struts has the functionality - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Saturday, September 14, 2002 1:58 PM Subject: RE: does struts has the functionality Jenny, Thanks for the link, it looks good.I will try it sometime. We have used the jspTags pager for recordsets more than 2500 records(one time query) and it gets displayed in less than 2 seconds.Also it is very easy to use, you just need to encapsulate ur presentation logic with these tags. Anand - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Friday, September 13, 2002 4:42 PM Subject: RE: does struts has the functionality This works pretty good. http://jsptags.com/tags/navigation/pager/ Anand -Original Message- From: jenny
Re: urgent!!!---Re: does struts has the functionality?
I have figured out how to have my action class be called whenever user click on a page index(solution is to have url=/rootcontext/paymentHistory.do). So the first question I asked below is solved. Now I encountered another problem. When user click on the 10th page(Please see the following senario for detail), the first 500 records will be removed from session, and the next 500 records will be retrieved from DB, and displayed to user. From logic view of point, the second 500 records should be displayed from page 11-20. But now, the page number still shows 1-10, and only the last records on 10th page is from second 500 records(the last record). The rest of the records dispalyed are still from the first 500 records. This is not correct. My question: How can I have the page index to be displayed correctly, and works correctly? Thank you very much for your help. Jenny - Original Message - From: Jenny [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Cc: [EMAIL PROTECTED] Sent: Sunday, September 22, 2002 6:59 PM Subject: urgent!!!---Re: does struts has the functionality? I have a question about using jspTags pager(http://jsptags.com/tags/navigation/pager/ ). Anand, I am sorry to send this email to you directly. I know you are expert on using jspTags pager. I urgently need your help. I hope you can recieve my email, and help me! If someone has used the jspTags pager before, please help me!! I am stunk here. Senario: There are lot of payments history records for a user. I will retrieve 500 records from DB at one time, and put them into session. When the next 500 records are retrieved, they will replace the first 500 records in the session. For example, if a user have 1200 records totally, at first time, the first 500 records will be retrieve from DB. To display the records, I use jspTags pager (http://jsptags.com/tags/navigation/pager/). On one page, 50 records will be displayed. So the first 500 records will be displayed on 10 pages. When user click on the last page(10th page), I want the next 500(501-1000) records to be retrieved, replace the first 500 records in the session, and then to be displayed to user. To achieve this, in my action class, I need to keep track the page number that the user click on.When the action class find that the last page(10th page) is clicked, The next 500 records will be retrieved, and be displayed to user. My Jsp name: paymentHistory.jsp My status and problem: The first 500 records can be displayed on 10 pages correctly. When I click on the page index(for example, I click on page 2), the URL changed to http:///rootcontext/paymentHistory.jsp?pager.offset=50. BUT MY ACTION CLASS IS NEVER BE CALLED.I AM STUNK HERE!!! My question: 1. How can I make the my action class to be called whenever user click on a page index?( I tried put html:form action=paymentHistory.do in my paymentHistory.jsp. but it shows same result. So I guess when user click on page index, it does not submit the form). 2. How can I pass pageNumber as a request parameter? (I tried put pg:param name=pageNumber / inside pg:pager. It doesn't show pageNumber on URL. I also tried to put ?number=%= pageNumber % in the line a href=%= pageUrl %?number=%= pageNumber %%= pageNumber %/a. It doesn't work. The following is my paymentHistory.jsp: !DOCTYPE HTML PUBLIC -//W3C//DTD HTML 4.01 Transitional//EN %@ page language=java import=org.apache.struts.webapp.example.Payment % %@ taglib uri=/WEB-INF/struts-bean.tld prefix=bean % %@ taglib uri=/WEB-INF/struts-html.tld prefix=html % %@ taglib uri=/WEB-INF/struts-logic.tld prefix=logic % !-- for page navigation-- %@ taglib uri=http://jsptags.com/tags/navigation/pager; prefix=pg % html:html locale=true head titlehistory/title META name=GENERATOR content=IBM WebSphere Studio /head body table align=center cellspacing=0 cellpadding=0 border=0 width=480 tr td align=centerPayment History/td /tr /table hr !--This following table is used to display account history-- table align=center cellspacing=0 cellpadding=0 border=0 !-- payment history header -- logic:present name=payments tr td Amount /td td Balance /td /tr html:form action=/paymentHistory.do pg:pager maxPageItems=1 logic:iterate id=aPayment name=payments scope=session tr pg:item td bean:write name=aPayment property=amount/ /td td bean:write name=aPayment property=balance/ /td /pg:item /tr /logic:iterate /table !-- page navigation area -- pg:index pg:prev a href=%= pageUrl %[ (%= pageNumber %) Previous ]/a /pg:prev pg:pages a href=%= pageUrl %%= pageNumber %/a /pg:pages pg:next a href=%= pageUrl %[ Next (%= pageNumber %) ]/a /pg:next /pg:index /pg:pager /html:form /logic:present /body /html:html Thanks for your help. -Original Message- From: Jenny [mailto:[EMAIL PROTECTED]] Sent: Saturday
Re: does struts has the functionality
Hi, there: The link http://jsptags.com/tags/navigation/pager/ that Anand provided is very good for page navigation. However, I have two questions regarding to using it. First, in order to use it, we have to add the following in our web.xml. taglib taglib-uri http://jsptags.com/tags/navigation/pager /taglib-uri taglib-location /WEB-INF/jsp/pager-taglib.tld /taglib-location /taglib Because the taglib-uri refer to http://jsptags.com/tags/navigation/pager. That means if the link doesn't work, our program will not work. In that case, is it safe to use it? Second question. I have 2000 records totally. I want to retrieve 1000 records from DB at one time and display it to user. When user navigate to the last page of the first 1000 records, user should still be able to click next to navigate to the second 1000 records. How can I have next in the last page of the first 1000 records. From my understanding, the jspTags pager will take the first 1000 records as the total search result, therefore, at the last page of the first 1000 records, it will not display next navigation ability. But in my senario,I still need the ability because I still have another 1000 records to show. At the last page of the second 1000 records, there should be no next navigation ability.In order to achieve this, do I need to modify the taglib, or just modify my JSP file. I tried to describe my senario as clear as possible. It may still not clear to you. Please feel free to ask me to clarify if you have any doubt. Thank you for your reply. Jenny -Original Message- From: Jenny [mailto:[EMAIL PROTECTED]] Sent: Saturday, September 14, 2002 12:14 PM To: Struts Users Mailing List Subject: Re: does struts has the functionality - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Saturday, September 14, 2002 1:58 PM Subject: RE: does struts has the functionality Jenny, Thanks for the link, it looks good.I will try it sometime. We have used the jspTags pager for recordsets more than 2500 records(one time query) and it gets displayed in less than 2 seconds.Also it is very easy to use, you just need to encapsulate ur presentation logic with these tags. Anand - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Friday, September 13, 2002 4:42 PM Subject: RE: does struts has the functionality This works pretty good. http://jsptags.com/tags/navigation/pager/ Anand -Original Message- From: jenny zhang [mailto:[EMAIL PROTECTED]] Sent: Friday, September 13, 2002 1:32 PM To: Struts Users Mailing List Subject: does struts has the functionality Hi, there: Does struts has the functionality of supporting page navigation? I have over 100 search results, I would like display them inseperate pages(10 records/page). In each page, I would like have previous, next button. I am not sure if struts has the functionality. If you know this, could you please share the info? I appreciate your info. Thanks __ Post your free ad now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] __ Post your ad for free now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] __ Post your ad for free now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] __ Post your ad for free now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] __ Post your ad for free now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED]
To Anand: Re: does struts has the functionality
Anand: Thank you. I have one more question.in your previous email, you said We have used the jspTags pager for recordsets more than 2500 records(one time query).My understanding is that you got all the records one time from Database. Where did you keep those records? Is it in session, or somewhere? The middle tier developer in our company wants to get 20 records(20 records/page)from Database at one time. For example, in order to display the first page, the first 20 records will be retrieved from database. When user click next,next 21-40 records will be retrieved and displayed on the next page.The reason he wants to do it that way is he doesn't want to keep many records in session. For me, I prefer to retrieve all records once. I think I should convince him. But I am not sure I have enough reasons. Could you please give me your suggestons, and your solutions? I really appreicate your help. Thank you very much. Jenny - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Saturday, September 14, 2002 5:20 PM Subject: RE: does struts has the functionality Jenny, I believe you can use the arrows instead of pages. You can even put images developed by your graphic designers. Here is the code snippet. %@ taglib uri=http://jsptags.com/tags/navigation/pager; prefix=pg % pg:pager pg:param name=keywords/ ex:searchresults pg:item %= searchResult % /pg:item /ex:searchresults pg:index pg:prev a href=%= pageUrl %[-- Back]/a /pg:prev pg:next a href=%= pageUrl %[ Next -- ]/a /pg:next /pg:index /pg:pager Hope this helps. Anand -Original Message- From: Jenny [mailto:[EMAIL PROTECTED]] Sent: Saturday, September 14, 2002 12:14 PM To: Struts Users Mailing List Subject: Re: does struts has the functionality Anand: Thanks for your valuable information. It is very helpful.I am going to use it. One more question(sorry to bother you again), the designer wants to use - -(graphic staff) instead of using numbers for page navigation. Since jspTags pager uses build-in variable pageNumber, it is not possible to achieve what the designer wants. Is my understanding right? I really appreciate your reply. Thank you in advance for your reply. Best regards, Jenny - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Saturday, September 14, 2002 1:58 PM Subject: RE: does struts has the functionality Jenny, Thanks for the link, it looks good.I will try it sometime. We have used the jspTags pager for recordsets more than 2500 records(one time query) and it gets displayed in less than 2 seconds.Also it is very easy to use, you just need to encapsulate ur presentation logic with these tags. Anand -Original Message- From: Jenny [mailto:[EMAIL PROTECTED]] Sent: Friday, September 13, 2002 7:18 PM To: Struts Users Mailing List Subject: Re: does struts has the functionality Anand: Thanks for your reply. This is an excellent link. I also got another link from Dave(in our group). The link URL is: http://edhill.its.uiowa.edu/display/. I am not sure if you knew that link. Both the link you provided and the above link are excellent. Now, I am not sure which one should I choose. I have large results sets. Does the solution you provided me has performance issue? I appreciate your opinions on this. Thanks, Jenny - Original Message - From: Anand Belaguly [EMAIL PROTECTED] To: Struts Users Mailing List [EMAIL PROTECTED] Sent: Friday, September 13, 2002 4:42 PM Subject: RE: does struts has the functionality This works pretty good. http://jsptags.com/tags/navigation/pager/ Anand -Original Message- From: jenny zhang [mailto:[EMAIL PROTECTED]] Sent: Friday, September 13, 2002 1:32 PM To: Struts Users Mailing List Subject: does struts has the functionality Hi, there: Does struts has the functionality of supporting page navigation? I have over 100 search results, I would like display them inseperate pages(10 records/page). In each page, I would like have previous, next button. I am not sure if struts has the functionality. If you know this, could you please share the info? I appreciate your info. Thanks __ Post your free ad now! http://personals.yahoo.ca -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] -- To unsubscribe, e-mail: mailto:[EMAIL PROTECTED] For additional commands, e-mail: mailto:[EMAIL PROTECTED] __ Post your ad for free now! http://personals.yahoo.ca
