Kiran Chintha

Overall, i have three arraylists and each arraylist have multiple text fields (i.e., a text field for each element in JSP).
I have a model class, in which there are setters and getters for each element in the JSP.
And for each arraylist I have setters and getters in the form bean class.

yes, i do have the form bean with attributes matching the textbox names, but eventhough the changed values are not getting updated.

Hi,
I am using Struts 1.1 for my application.
I have a list of text boxes in my Jsp Page. While pulling the data from the database, i am able to display the required data in the textboxes. But, when i update data in the text boxes and submit the page, the updated data is not available in the action class, nor even updating the data in the database. I have tried to print the data from each text box after updating it and submitting the page, but the old data is only printed from the textboxes. Why the updated data in the jsp page is not set in the Form bean. Am I missing something in this flow, which is causing this issue, Kindly help me out, i am trying to resolve this issue since yesterday, but of no use till now.

Thanks in Advance.
Kiran

Hi Paul,
Thanks for your suggestion,

1. I will implement the tracking as suggested by you for the first item.
2. For second item, we are not using any ORM tool for this report generation right now, could you provide any further analysis for the same.
3. For third item, according to my understanding whatever the existing bean classes are there, all these needs to be updated as every class should implement Serializable interface, is this the only change needs or any further changes to be taken care off.
4. For fourth item, could you please guide me out, with your analysis as i am not able to clearly understand the change you are suggesting for this implementation.

Thanks
Kiran

Hi Sebastian,
Thanks for your suggestion, I will implement the SessionAttributeListener and track the scope of the session attributes and will remove them once they are no longer required.


Thanks
Kiran

Thanks Ankit, actually i have mistaken to take a correct forum, actually i have picked up the most recent topic from my list and sent as a new reply from that window, thanks for your observation and will do the post in the appropriate forums for the new ones.

Thanks
Kiran

Yes David, so much analysis has done on the same, this application is being handled since long time about past three years and came up with the solution to recover the session related issues which are mainly causing the performance related problems with the application. Please give me the ways i can handle it out.

Thanks
Kiran

I have been working on an application configured completely on Core Java, Servlets and JSP's using RAD 7 as IDE, i need to improve the performance of the application, after doing analysis on the existing flow, our senior team came up with some solutions to improve its performance, please find below the listed options and suggest me the ways i can work them out.

1. There are unnecessarily used session variables and attributes once the work with that variables is done, i need to trace them out and pull them out from the session, so as to reduce the session data and improve the performance as a whole.

2. There are so many reports generated using our application, for each of these reports there is search criterion option provided, it acts as filter for reports, some of search criterion is very huge like, entire users list their locations are fetched and stored in the session, instead of storing them in the session we need to hit the server and get the list on every time, which decreases the data in the session.

3. The steps to make all the existing beans serializable.

4. In one of the feature in the application, we are generating the information using sessions, we need to move this session stuff to a bean and whenever required need to load the data, what are the ways for moving the logic from sessions to java beans, what are the things needs to implemented.

Thanks
Kiran

Hi Friends,
I have been working on an application configured completely on Core Java, Servlets and JSP's, i need to improve the performance of the application by removing unnecessarily used session variables and attributes once the work with that variables is done, i need to trace them out and pull them out from the session, so as to reduce the session data and improve the performance as a whole, i do have some more change requests that i need to take care of to improve the performance, i will be discussing with you the same in the next post, help me out with the ways, to remove these unnecessary session stuff.

Thanks
Kiran

Hi Friends,
I am planning to give SCJP exam within next two months, could you guys send the material that can be used for the preparation of exam. And suggest me with the ways for the better approachment of the same.

Thanks
Kiran

Hi Satish,
Thanks for your suggestion, i hope we need to check the limitation and need to write the data to a new excel sheet, and can you suggest any other ways this can be accomplished, as an alternative, i need to have a seperate way of implementation for generation of this report, like when the user click the report generation button, needs to call a cron job in unix which will take care of generation of report in excel, and this will be running in equal intervals of time like 5 - 10 mins and when it finds any request it should generate the report and place it in some location in unix box and intimate the user once the report is generated.

Thanks
Kiran

Hi Pals,
I have a requirement for report generation using java coding, the report should be generated in an excel file.

For this report generation, originally the coding was in servelts and jsps and everything was kept in a session for each user, so there was so many problems related to sessions, after that the coding is completely migrated to a stored procedure and now the session related problem has got solved, but now the problem is when we run the report for larger data, the output is not generating to an excel file and the controller is showing as running but there isnt any output. Could you guys please suggest some ways so that i can follow to generate the reports (by fetching data from database), we are using servlets and JSP's in our application. We are using poi jar file for report generation in excel.


Thanks
Kiran

Hi Folks,
Recently i have been assigned to an application which is built on Servlets/Jsp's, and i have been given some assignment, to implement that change i need to study the complete existing flow of the application then only i can implement the requested change, can you people suggest what are the ways in which we can understand the application flow built in Java (Servlets/Jsps) in detail and work on the given new change.

Thanks in advance
Kiran

Hi,
I am working on an application built using Servlets and JSP's, that is running on RAD 7 Server, I have some issues with that application, and i hope you guys can help me out to solve this problem.

1. Session Management changes that needs to be done, because sessions are used rigorously within the application, and i need to trace the objects that are unwantedly residing within the sessions eventhough there is no proper use of them.

2. Different ways in which we can improve/tune the performance of an application.

Please suggest me the ways in which we can improve the performance of this application and how manage the sessions perfectly and what are the things we need to take care for proper maintenance of the session objects within the application.

And also please suggest me some sites where we can get better information for improving the performance of applications built using servelts/jsps.

Thanks in advance..