Jakarta poi and Jexcel

Hello techies,
I want read an Excel sheet using Java. I had gone through net and found two Api's.
One is Jakarta's POI and another one is JExcel.
Iam totally confused, which one i need to implement and is there any performance difference b/w these two api's.
Also can any body tell me from which url i have to download these two s/w and how to install them.
regards,
ramu

One is Jakarta's POI and another one is JExcel.
Iam totally confused, which one i need to
e i need to implement and is there any performance
difference b/w these two api's.Don't know, i'm sure a google would tell you.
e.g 1
2
Also can any body tell me from which url i
which url i have to download these two s/w and how to
install them.I'm suprised you found out about the libs, but not the download URLs Google Jakarta POI and: First Hit!...

Similar Messages

Jakarta POI VS JEXCEL

All
I'm from Japan. My English is very poor and sorry.
I want to operate Excel Spread sheet on Java program. I found out an information for excel spread sheet operation on Java program by using API's POI or JEXCEL.
But I have no idea which is better. Please advice me the following topics.
1,What's different POI and JEXCEL?
2,What's merit and demerit POI and JEXCEL?
My environments are
1,Applicatoin Server :Websphere
2,Programing Language: Java
3,Database UDB in Z-os(MainFrame)
My requirements are
1,I want to pick up data from database, and create excel spread sheet on application server, and down load excel spread sheet to client.
2,I want to update data to database created by excel spread sheets on client.
Please advice.
Thanks

TechnicalDoubts wrote:
Apache POI vs JExcel
5.POI do not provide password capability for the spreadsheet.
6.POI consumes lot of heap memory when we write data to excel sheet which causes outofmemory error.JExcelAPI also does not offer support for passwording a spreadsheet. Even if it did, breaking the password on a spreadsheet only takes seconds with the right tool.
JExcelAPI, until recent versions, has been known to consume memory as well. Changes have been made to the code which greatly improves it's memory usage.
Having used JExcelAPI for nearly 3 years now I would highly recommend using it. Here are some links to help:
http://jexcelapi.sourceforge.net/resources/faq/
http://tech.groups.yahoo.com/group/JExcelApi/
The forum is active as well, myself and others are always there to help.

Jakarta POI and Java Excel API

I recently downloaded both these as I'm trying to create an application that reads information from an excel file. However, the problem I am having is that I just don't know where to start. When I download the files and unzip them, I haven't a clue where to put the files or how to call them from my java files. I've read the help files on both the websites but am no clearer on what to do. Any help would be much appreciated.

Download an IDE like Eclipse or JBuilder. Set-up the POI or JExcel JAR files on your new project's class path. Import the relevant packages into the class that will use them. Start typing, autocomplete will help give you a list of classes and methods that are available.
If the above is confusing, start over. Go back and re-read how to import external JAR's onto a classpath. Try to use another third-party API to get the hang of it. Then, do it with POI. Follow the examples, even copy-paste a class into your own source tree and try to compile. Gradually, build up your expertise. Now, go to the Javadocs. You should have the ability to use any class or method published in the API.
- Saish

Jakarta Poi and Adf

Hi All
I have a requirement to create a web application that interfaces with microsoft com.
I have searched through the forum and the Jakarta poi looks like a good option.
My question is, has anyone integrated jakarta poi with adf and deployed the app to the web application server.
I am using Jdeveloper 10.1.2.
Has anyone done a mail merge ?
Thank you

Another reference:
http://technology.amis.nl/blog/?p=450

Jakarta POI Excel97-2000 (Excel 2003?)

Hi All
I need to read data from Excel 2003 spreadsheet using my java program.
I looked at Jakarta POI, and JDBC-ODBC bridge options.
POI says Excel97-2000
Creating system DSN does not show Excel 2003 options. It shows Excel97-2000, Excel 3.0 etc
My environment is Windows XP 2002.
Can I read Excel 2003 documents using POI?
If I deploy this program on a machine which has earlier versions of excel on it will it be able to read.
I just have plain text in excel spreadsheet.
Please let me know.
Thanks
bib

Hard to answer this question definitively because it very much depends upon exactly what is in the file. If you have saved a complex, formatted document that makes extensive use of features that were introduced into Excel for version 2003 then you will face problems. If the file contains simply plain text, then you should be fine. Most of the API authors base their product on an earlier version of the BIFF8 format to ensure compatibility with as wide a range of Excel versions as possible. That is why they all mention that the API will handle files that are based upon a specific version of Excel. Hopefully, you will be fine distributing the application onto machines that run earlier versions of Excel.
By the way, have you also considered JExcel? It handles a few things differently to HSSF (POI) and you may prefer the way it approaches parsing an Excel spreadsheet file and exposing it's contents.

Java and Excel : POI vs JExcel API?

Hello,
I am hesitating between using the JExcel API and the Jakarta POI API to manipulate (rather simply) excel files with java.
Has anyone experimented both? What are the drawbacks and the advantages of both?
Thanks a lot,
Laetitia

Laetitia,
Hello! I've written a significant app (J2EE, EJB using WebLogic) utilizing first the POI api and then the jexcel API to produce MS excel output financial reports (for online content provider) . The application processed 80K plus lines of subscriber information, calculated monthly subscription delivery charges for 100+ publications, each with custom contracts and wrote the calculated data to 'reporting tables'. Basically a specialized datamart of sorts (I know little about 'true' data marting). App would then generate the ms excel spreadsheet reports, one per publisher, utilizing the excel API. The largest publisher report would be over 10Mb in size, containing some 40K rows of data, 30 columns wide.
I utilized the POI api first because it looked to be a more substantial product with firmer support, more developers, etc. However I soon became confused on how different modules worked, received slow feedback from the development team, and found the documentation to be horribly out of date and misleading. Additionally, the larger the generated excel file became the less stable the server would be until it would crash with memory problems. I'm not saying that the memory errors were within the POI code, but after I switched to jexcel the server crashing went away (perhaps the jexcel code is more forgiving).
I then switched to use the jexcel API and was immediately pleased. The documentation was accurate and clearer. The functionality I needed was easy to find and worked first time. When I had problems I posted my questions to the yahoo message board and was immediately helped. As an aside on the message board I'm an old internet hack with message boards and am used to stupid posts (and posters) being immediately 'flamed' and derided by those on the list 'in the know'. I was amazed by all the posts from people asking 'I just downloaded jexcel and need help' who actually got thoughtful and helpful posts, not just rude 'RTFM you @#%$$@%' replies.
Jexcel API was written by one guy but seems to be supported by several. I'd recommend it strongly - new releases come out continually and it's easy to get answers to questions on how to use it. Plus, and this is a biggy with me, the documentation is accurate and useful.
Email me for more.
-wcrighton
[email protected]

How to read .doc files using jakarta POI api......

Hi all,
I've googled a lot on reading the file contents of an MS word file. I couldn't get a solution yet. Can you please give some sample codes for using the POI api for extracting only the text contents from an MS word file.
Thanks and Regards,

whenever i click the folders, it's taking
to the internal folders. but there's no
option to download the whole package.Thats because you're looking at a tool which displays the contents of an svn repository through a web site.
What you need is a subversion client (the repository is a subversion repository).
There are several easy to use clients available:
Here's two:
1) subclipse: If you use eclipse. Dammed great tool IMHO. http://subclipse.tigris.org/
2) tortoise svn http://tortoisesvn.tigris.org/
When you've got a client, you'll need to give it a repository URL from which to check out.
For the POI project, that URL is http://svn.apache.org/repos/asf/jakarta/poi/trunk/
~D

Very beginner POI and import question

I am reasearching/playing around with the Jakarta POI. My boss would like to load word docs/xls into the database in binary form - he then wants to display them Read Only to the end users. He suggested that I look into using the POI.
I've been reasearching the forums here and google but I havent found a great example implementing this. Everything I have found is way way over my head. Could someone point me to a very simple example of doing this? Or give me a very basic skeleton of what I would need to do to just open a word doc - I am trying to use this time to teach myself how to use/read the API(poi) - if that makes any sense...
Secondly - while I was reading on POI I ran across this: import java.io.*; // don't ever do this...done to save space I know it says it is to save space but is that because it imports all the classes under IO? I know its a stupid question but I have seen it in other examples and use it in other jsp's... I just copied and pasted so I didnt really know why or what I was doing...
Source of comment: http://www.onjava.com/pub/a/onjava/2003/01/22/poi.html - Appendix 1/ Example 1

Also wanted to add that my boss would like to store
the file as binary into database, extract the file
from database, change it back to native format in a
temporary directory and then use the POI to present it
as read only??
Is there any easier way? This still just seems like a
straight forward process being made harder then it
is...I thought i just told you how to do all of that?! You can only really store documents and files etc. as binary in a database column, unless the file is plain text (which these are not) and even then you would lose all of the formatting. So, don't worry about the binary aspect of it, as you will prob be storing the file as a BLOB anyway. You don't have to change the file back to its native format either, as if you have stored a file as binary, and you know the name (most importantly the extension), then when you write the binary to a file of that name, it IS in the original format. You can write a java webDAV client easily with the tools and libraries available in such packages as Jakarta Slide. In the past this API has been... lets just say, hard to grasp... due to documentation problems, delayed features etc. However, the traffic around the project seems to have increased dramatically since I last used it properly. Plus, you can extend this store to manage any kind of document or file.
Oh and by the way, I would suggest you try to do this on the web... basically because IE (as prob with other browsers) can view MS office docs in the browser window itself. Very helpful thing that!
Is this helping you or not?

Apache Jakarta POI in PL/SQL

Hi all,
Any one has code sample for how to integrate Apache Jakarta POI in PLSQL...
Thanks for your help.
Raja

Hi,
Thanks for your reply.
Yes I have seen this document. Our requirement is writing data from multiple tables into same worksheet and at the same time XL will have different worksheets.
Regards,
Raja

Jakarta-poi-1.5.0-FINAL-20020506.jar

Where do I download jakarta-poi-1.5.0-FINAL-20020506.jar from ???
Can anybody help me ???

Hi Friends,
I'm also on the same track. I download the jw-0332-poi from Resources of http://www.javaworld.com/javaworld/jw-03-2004/jw-0322-poi.html
I compile CreateXL.java & ReadXL.java files & got compilation errors like:
"cannot resoleve symbol class HSSFWorkbook
"Cannot reslove symbol class HSSFSheet"
and more error for HSSF package from org.apache.poi
To solve this I download "poi-bin-3.0-Final-20070503.zip" from http://www.apache.org/dist/jakarta/poi/release/bin/
and poi-src-3.0.1-FINAL-20070705.zip files fromApache download mirrors. i put it in classpath & then compile but still I got the same error.
I didn't find jakarta-poi-1.5.0-FINAL-20020506.jar on http://www.apache.org/dist/jakarta/poi/release/bin/
From where should I get the jakarta-poi-1.5.0-FINAL-20020506.jar ?
I would appreciate your help for this topic.

Apache Jakarta POI

Hi all,
Any one has code sample for how to integrate Apache Jakarta POI in PLSQL...
Thanks for your help.
Raja

This is the standalone Forms forum, you would increase chances to get an answer by posting in either:
the PL/SQL forum - PL/SQL
the Oracle Applications Server forum - Oracle Application Server - General

Jakart POI HWPF

I am trying to create/edit a Word document using a pure Java approach. So far the most succesful approach has been using JIntegra (which claims that can do everything that you can do with VBA). However, JIntegra has a commercial license. So, I am trying to look into Jakarta POI which has been in development for ever. It seems to have some functionality that I can use as far as creating/editing word documents but one big fuctionality that I need is inserting images, which so far I haven't been able to figure out.
Any body out there has been succesful at implementing an application using POI HWPF, if so, I will really appreciate your input.
Regards,
Paul

I have the same problem. Right now, we're using libraries from the JACOB project
(http://danadler.com/jacob/), but I haven't been able to find any really helpful documentation. If anybody
has another solution, I'd be thrilled to hear about it also.

Jakarta --POI doubt

I am using a servlet to create an xls file using Jakarta-POI.Rt now i am saving the file to the server,then copy to the client s/m which accesses the servlet
HSSFWorkbook wb = new HSSFWorkbook();
HSSFSheet sheet = wb.createSheet("export");
FileOutputStream fileOut = new FileOutputStream("test.xls");
wb.write(fileOut);
fileOut.close();
This code directly saves the file to the server.
Can i write the workbook directly to client's s/m using any buffering?
bcoz my boss told me this will create sme security issues .....
Anybody plz help me..
Thanks in advance

Don't a different stream, like the servlets output stream?!

Jakarta POI find and replace

hello ,Im trying to make find and replace using POI
the problem Im having that Im able to replace all of the text of a range ,I would like to replace only one word
thank you in advance
here is a snap of my code
try {
            doc = new HWPFDocument(new FileInputStream(jTextFieldFileName.getText()));
//            WordExtractor extractor = new WordExtractor(doc);
//            extractor.get
        } catch (FileNotFoundException ex) {
            ex.printStackTrace();
        } catch (IOException ex) {
            ex.printStackTrace();
          Range r = doc.getRange();
           for (int x = 0; x < r.numSections(); x++)
              System.out.println("this is section "+x+" out of / "+r.numSections());
               Section s = r.getSection(x);
               for (int y = 0; y < s.numParagraphs(); y++)
                   System.out.println("this is paragraph "+y);
                   Paragraph p = s.getParagraph(y);
                   for (int z = 0; z < p.numCharacterRuns(); z++)
                       System.out.println("this is char "+z);
                       //character run
                        CharacterRun run = p.getCharacterRun(z);
                        //character run text
                        String text = run.text();
                        st= new StringTokenizer(text);
                        while(st.hasMoreTokens())
                           find= st.nextToken();
                             if(find.compareToIgnoreCase("[name]")==0)
                                run.insertAfter("hoooo");
                    try {
                        doc.write(new FileOutputStream(jTextFieldOutPut.getText()));
                    } catch (FileNotFoundException ex) {
                        ex.printStackTrace();
                    } catch (IOException ex) {
                        ex.printStackTrace();
                        // show us the text
                        System.out.print(text);
               System.out.println("am out of the section");
          System.out.println("end of process ");

William_Donelson wrote:
> The "Find and Replace" dialog window has got to be the
most obnoxious bit of
> programming I've seen, even by Macromedia standards.
>
> 1) Are there any command-keys that work with it, e.g. to
CLOSE it from the
> keyboard without having to mouse up to the "Close"
button ?
>
> 2) Is there a way to type Cmd-F and then type the string
to search for AND
> HAVE it actually go into the "Find" field in the window?
(I've typed Cmd-F then
> a string 1,000 times, only to see that the string has
NOT gone into the search
> field, UNLESS the dialog was previously closed. And
there's no Keyboard command
> to close the window either, see (1) above)
>
> Thanks!
>
> William
Command . (Command Period) closes box, as in any mac
programme.
Mick

Problems in Using Jakarta POI in Jserv- NoClassDefFound

Hi,
I'm trying to deploy an application on Jserv which used the Jakarta's POI API. I placed the Jar file in the server folders and specified the same path in the file Jserv.properties.
But then when trying to access that folder it gives the error NoClassDefFound for the poi's packages meaning its not picking up the classes under this jar.
I restarted the Jserv several times after mentioning the path.
Can anybody help me on this in pointing out wat i have missed here.
Thanks in advance,
Vijay

hello,
i'm also having problems using poi. I've copied the poi jar to tomcat/lib and also to the lib directory of the systems jdk. I've done the same with the commoms-logging.jar.
Within a jsp is import these things:
<code>
<%@ page
     buffer="128"
     import="java.util.*,
          org.apache.poi.hssf.usermodel.*,
          org.apache.poi.hssf.util.*"
%>
</code>
But when calling the url of the page i get:
Package org.apache.poi.hssf.usermodel not found in import.
Why, it is in the import? Whats wrong there?
Thank you,
Hava a nice day,
Nico

Jakarta poi and Jexcel

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