Linking java programs to spreadsheets
I am trying to write a program that accepts numeric input and generates four different sets of numeric data. I want to link the program to Microsoft Excel so that as the program generates the numbers, it automatically populates the cells of an Excel spreadsheet. Also I want the program and the spreadsheet to be linked in such a way that changes in the values generated in the source program due to changes in input, are reflected in the cells of the spreadsheet.
I am using the jdk1.1.1 on a Windows 98 machine.
JIntegra also provide a COM-Java bridge that will allow you to do something like this.
I didn't find that any COM bridges were very successful in the end, though, since there didn't seem to be a means of differentiating between various instances of Excel that might be open (Office assumes that the first instance should always be used). For simple applications a COM bridge should prove alright, though.
Similar Messages
-
Linking java program to microsoft outlook
how can i call outlook program from my java program??
This question is one of the most frequenly asked questions.
Search the forum from "Outlook" and you'll find plenty of replies. -
Using a java program to fill in forms using information from a spreadsheet
I had an idea to "automate" some data entry at work and need to know if my idea is feasible with Java. Here is the back story:
I work on a research project and we have all of our contact data in an Excel spreadsheet (I know access may be better for this but for "political reasons" I just set it up in Excel). Every day we need to pay participants and this is done through a third party website. When the participant is new to this website we need to fill in all their personal information via a form on the webpage. Since we already have all their information stored in a spreadsheet, I was thinking we could create a little program that pulls the data from the excel sheet and inserts it into the form fields.
Can this be done with a simple java program?
Thank you for any help!peroija wrote:
Can this be done with a simple java program?No.
Can this be done with a java program?Yes. You could certainly have your page upload the spreadsheet to your server, and you could certainly have your server program attempt to extract the data from Excel using Apache POI or JExcel or something like that. But you have to be prepared for people to upload the wrong file, or the right file in which the users have chosen unusual date formats, and so on. You could make things easier by distributing a spreadsheet which is locked down so that the users can only enter the information in specific places and specific formats, but it looks like you have missed that opportunity too. -
Execute several UNIX OS commands from inside Java program
Greetings,
I would like to be able to execute from a Java program several of the following UNIX commands
script filename
cd
date
grep
diff
I have been able to get a single command to work with
Runtime rt = Runtime.getRuntime();
Process p = rt.exec("dir");
My goal here is to accomplish a Java program which will use JDBC to access an Oracle database with SQL and then compare the resultant flat file with a diff command in Unix to another delimited file from an Excel spreadsheet. Your input is appreciated.
Thank youI would suggeat to use JDBC to get the data from database and then read your file and then use existing java diff program from following link to find the differences between the files
http://www.bmsi.com/java/
I hope this helps
VAN -
Java plugin doesn't work, even though it's installed correctly and java programs work.
As stated. I have a link in ~/.mozilla/plugin that points to test/jre/plugin/i386/ns7/libjavaplugin_oji.so, which is the java 6 update 21 runtime environment.
Java doesn't show in about:plugins, and java applets don't start (firefox suggests to install missing plugins).
Java programs using the jre outside the browser work.
This is on Linux 32-bits, Slackware 13.0, kernel 2.6.34.<blockquote>As stated. I have a link in ~/.mozilla/plugin that points to test/jre/plugin/i386/ns7/libjavaplugin_oji.so, which is the java 6 update 21 runtime environment.
</blockquote>
Where did you read that?<br />
See http://kb.mozillazine.org/Java<br />
In Firefox 3.6 and later versions you need the Next-Generation Java™ Plug-In present in Java 6 U10 and later (Linux: libnpjp2.so; Windows: npjp2.dll).
http://java.com/en/download/faq/firefox_newplugin.xml
http://java.sun.com/javase/6/webnotes/install/jre/manual-plugin-install-linux.html
<pre><nowiki>ln -s /usr/local/java/jre1.6.0_20/lib/i386/libnpjp2.so libnpjp2.so
ln -s /usr/lib/jvm/jre/lib/i386/libnpjp2.so /usr/lib/mozilla/plugins/libnpjp2.so (java-1_6_0-sun-plugin)
</nowiki></pre> -
Error while calling java program from ABAP
Hi Experts,
We are trying for RFC inbound scenario.
We followed the below blog
/people/gregor.wolf3/blog/2004/08/26/setup-and-test-sap-java-connector-outbound-connection
We are working with SAP JCO 3.0.2
We are getting the error : 'STFC_CONNECTION' could not be found in the server repository.
After I run the Java server program if I execute the RFC destination directly from SM 59 it is showing successful messages.
If I stop the java program then this RFC is failing. Based on this we concluded that RFC to Java connection is working fine.
But as mentioned in blog if we call the RFC Destination from ABAP program it is giving the below error,
'STFC_CONNECTION' could not be found in the server repository.
If we test the RFC destination using RFC_TRUSTED_CHECK standard FM we are getting the below error.
'RFCPING' could not be found in the server repository.
We create the RFC destination of Type : TCP/IP as exactly mention in the blog.
Please help us in resolving this issue.
Thanks
PrincePabi,
Using the RFC connection,we can establish a link between Java and SAP.
Afterwards,hope we can call Java program from ABAP.
Below is the sample piece of code to establish RFC connection(link) between Java and SAP.
DATA: REQUTEXT LIKE SY-LISEL,
RESPTEXT LIKE SY-LISEL,
ECHOTEXT LIKE SY-LISEL.
DATA: RFCDEST like rfcdes-rfcdest VALUE 'NONE'.
DATA: RFC_MESS(128).
REQUTEXT = 'HELLO WORLD'.
RFCDEST = 'JCOSERVER01'. "corresponds to the destination name defined in the SM59
CALL FUNCTION 'STFC_CONNECTION'
DESTINATION RFCDEST
EXPORTING
REQUTEXT = REQUTEXT
IMPORTING
RESPTEXT = RESPTEXT
ECHOTEXT = ECHOTEXT
EXCEPTIONS
SYSTEM_FAILURE = 1 MESSAGE RFC_MESS
COMMUNICATION_FAILURE = 2 MESSAGE RFC_MESS.
IF SY-SUBRC NE 0.
WRITE: / 'Call STFC_CONNECTION SY-SUBRC = ', SY-SUBRC.
WRITE: / RFC_MESS.
ENDIF.
Regards,
Sree -
Using a UNIX shell script to run a Java program (packaged in a JAR)
Hi,
I have an application (very small) that connects to our database. It needs to run in our UNIX environment so I've been working on a shell script to set the class path and call the JAR file. I'm not making a lot of progress on my own. I've attached the KSH (korn shell script) file code.
Thanks in advance to anyone who knows how to set the class path and / or call the JAR file.
loggedinuser="$(whoami)"
CFG_DIR="`dirname $0`"
EXIT_STATUS=${SUCCESS}
export PATH=/opt/java1.3/bin:$PATH
OLDDIR="`pwd`"
cd $PLCS_ROOT_DIR
java -classpath $
EXIT_STATUS=$?
cd $OLDDIR
echo $EXIT_STATUS
exit $EXIT_STATUSHi,
I have an application (very small) that connects to
our database. It needs to run in our UNIX environment
so I've been working on a shell script to set the
class path and call the JAR file.
#!/bin/sh
exec /your/path/to/java -cp your:class:paths:here -MoreJvmOptionsHere your.package.and.YourClass "$@"Store this is a file of any name, e.g. yuckiduck, and then change the persmissions to executechmod a+x yuckiduckThe exec makes sure the shell used to run the script does not hang around until that java program finishes. While this is only a minor thing, it is nevertheless infinite waste, because it does use some resources but the return on that investment is 0.
CFG_DIR="`dirname $0`"You would like to fetch the directory of the installation out of $0. This breaks as soon as someone makes a (soft) link in some other directory to this script and calls it by its soft linked name. Your best bet if you don't know a lot of script programming is to hardcode CFG_DIR.
OLDDIR="`pwd`"
cd $PLCS_ROOT_DIRVery bad technique in UNIX. UNIX supports the notion of a "current directory". If your user calls this program in a certain directory, you should assume that (s)he does this on purpose. Making your application dependent on a start in a certain directory ignores the very helpful concept of 'current directory' and is therefore a bug.
cd $OLDDIRThis has no effect at all because it only affects the next two lines of code and nothing else. These two lines, however, don't depend on the current directory. In particular this (as the cd above) does not change the current directory for the interactive shell your user is working in.
echo $EXIT_STATUS
exit $EXIT_STATUSEchoing the exit status is an interesting idea, but if you don't do this for a very specific purpose, I recommend not to do this for the simple reason that no other UNIX program does it.
Harald. -
How to run a java program remotely
hi,
i have a simple hello-world java program on my windows machine.
is it possible to run this program remotely from a linux server?
any suggestions, links to suggestions will be helpful. thanks!i think that would be a problem for me, so i will need to use some other approach. what i'm trying to do actually is that we have a university server which is set up so that students can have combination fo shell and cgi scripts in their home directory and with that, they can have web pages.
but students cannot use that server to run java applications. so to work around that, i was hoping that i can have my java application, and the database on my own windows machine, and be able to invoke the java program from the shell script on the linux server and once i have my ouptut, i can display that on the web page with CGI script.
is there any other practical approach that i can use to accomplish the above? -
JSP codes for running a JAVA program
hello...
does anyone know the JSP codes for running a Java program from my web page?? i mean i already have my java program compiled... and i just want this java program to run in the background when I click on a button or a link...
Any idea about this?
plz advice..
aviyes... u r somewhat right... but this runs on Jakarta Tomcat...
i'm using the Apache Http Server together with the ServletExec AS which enable the Apache server to run JSP..
I've created a package where i've put my classes...
WEB-INF/classes/tbd(package name)/my classes
and i've added.. package name.. in my java program..
and then in jsp... i've written..
<%@ page import="tdb.*"%>
<jsp:useBean id="exec" class="tdb.textdb" />
<%exec.convert_data();%>
but when i run the page it says the package does not exist...
can anyone tell where to place the folder WEB-INF so that it can run fine?
thx
avi -
Java-Program for JCO-Connection
Hallo experts!
I tried to get a Java-Program running which should establish JCO-Connection to a SAP-System and got the following error message:
java.lang.ExceptionInInitializerError: JCO.classInitialize(): Could not load middleware layer 'com.sap.mw.jco.rfc.MiddlewareRFC'
JCO.nativeInit(): Could not initialize dynamic link library librfc. Found version "640.0.144" but required at least version "640.0.161".
at com.sap.mw.jco.JCO.<clinit>(JCO.java:776)
at JCOTEST.main(JCOTEST.java:24)
Exception in thread "main"
Anyone got an idea?
Thanks for your help in advance.Thank you Jens,
it worked fine with the newest JCo-Download.
Now I seem to have some Network problem: ip not reached:
com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect to SAP gateway failed
Connect_PM GWHOST=10.251.24.10, GWSERV=sapgw10, ASHOST=10.251.24.10, SYSNR=10
LOCATION CPIC (TCP/IP) on local host
ERROR partner not reached (host 10.251.24.10, service 3310)
I need to talk to our network manager in the firm.
Regards.
Thomas -
A JAVA PROGRAM TO CONTROL SYSTEM EVENTS OF WIDOWS XP
Hello everyone.
The question is: can I develop a java program that can control system events of a windows environment? For example a program to shut down the computer, log off or open and close windows applications?
If so, how can i do that??
please help me. Your help is appreciated in advance.
thanks.
WakariukiHi,
If you want to make native calls, you can use JNI (Java Native Interface).
Using JNI, you call call any C/C++ funtions.
Please visit, http://java.sun.com/docs/books/jni/ for JNI structure. To program using JNI, read the book given in the link. It is very useful for beginners. -
A JAVA PROGRAM TO CONTROL SYSTEM EVENTS OF WIDOWS environment
Hello everyone.
The question is: can I develop a java program that can control system events of a windows environment? For example a program to shut down the computer, log off or open and close windows applications?
If so, how can i do that??
please help me. Your help is appreciated in advance.
thanks.
WakariukiHi,
If you want to make native calls, you can use JNI (Java Native Interface).
Using JNI, you call call any C/C++ funtions.
Please visit, http://java.sun.com/docs/books/jni/ for JNI structure. To program using JNI, read the book given in the link. It is very useful for beginners. -
How to find out jre version installed ,using a java program?
Hello,
Is there any way to find out the installed JRE version using a java program ?
The requirement is as follows:
There is a html page with 4 steps to install a software. each step is a link, which upon clicking does its work.
the first step is to install jre 1.4.2_11 if its not installed in the system. But how can i find out whether jre 1.4.2_11 is installed or not ?
Thanks in advanceFor the hell of it... here is a list of properties you can query:
java.version Java Runtime Environment version
java.vendor Java Runtime Environment vendor
java.vendor.url Java vendor URL
java.home Java installation directory
java.vm.specification.version Java Virtual Machine specification version
java.vm.specification.vendor Java Virtual Machine specification vendor
java.vm.specification.name Java Virtual Machine specification name
java.vm.version Java Virtual Machine implementation version
java.vm.vendor Java Virtual Machine implementation vendor
java.vm.name Java Virtual Machine implementation name
java.specification.version Java Runtime Environment specification version
java.specification.vendor Java Runtime Environment specification vendor
java.specification.name Java Runtime Environment specification name
java.class.version Java class format version number
java.class.path Java class path
java.library.path List of paths to search when loading libraries
java.io.tmpdir Default temp file path
java.compiler Name of JIT compiler to use
java.ext.dirs Path of extension directory or directories
os.name Operating system name
os.arch Operating system architecture
os.version Operating system version
file.separator File separator ("/" on UNIX)
path.separator Path separator (":" on UNIX)
line.separator Line separator ("\n" on UNIX)
user.name User's account name
user.home User's home directory
user.dir User's current working directory -
Java program not working using newer version of scheduler (AutoSys)
A little background: I'm in the middle of trying to upgrade our AutoSys server (scheduler) to the latest version (version R4 to R11) and have to do regression testing to ensure our jobs will work in the new version. There's a small java program that is not working supposedly due to the following error:
Exception in thread "Main Thread" java.lang.NoClassDefFoundError: com/f1j/swing/common/JDKAdapter
at com.f1j.swing.common.Adapter.<clinit>(Adapter.java:86)
at com.f1j.swing.engine.ss.JBook.<init>(JBook.java:3032)
at com.f1j.swing.engine.ss.JBook.<init>(JBook.java:3096)
at com.test.Foo.performScan(Foo.java:122)
So in the old version (R4), it runs fine. In R11, I get the exception above. The CLASSPATH matches and I've verified that by echoing it in the shell script that calls the java program. Here's how it's called in the shell script.
echo $CLASSPATH
${JAVA_HOME}/bin/java com.test.Foo
So the Foo class was written by me, which makes use of this external library called f1j11swing.jar (for spreadsheet creation).
The source of the error is from this line in Foo (line 122):
book = new com.f1j.swing.engine.ss.JBook();
The funny part is JDKAdapter (the missing class) is in the same jar file as JBook, so it definitely finds the library in the classpath. But for some reason, this new AutoSys version is spitting out this error. I've exhausted many approaches to resolving this, but I'm still stuck.
Here's the layout of how things are called (should be same for R4 and R11):
1. AutoSys server logs into client machine XYZ as user arnold
2. arnold (AutoSys client) on XYZ executes shell script to call java program
The only significant difference I see is that the AutoSys server in R4 is HP while the R11 server is Sun. However, it shouldn't matter because the client server they're logging into to execute the script is the same linux server.
Does anyone have any ideas? I've already started dialogue with the vendor and it seems kind of in limbo at the moment. Please let me know if you need more info. Thanks.Hi DrClap,
I just checked jre/lib/ext of my $JAVA_HOME and verified that there doesn't exist any library with a class named "Adapter." We don't put anything in this directory other than what came with the original installation. I've tried isolating the jars before as well, by doing something like (to no avail):
java -cp /users/test/lib/f1j11swing.jar:/users/test/lib/Foo.jar com.test.Foo
If I remove the f1jswing11.jar path in the above command, it will complain about other things. Also, for fun, I tried dropping f1j11swing.jar into the ext folder and removing it from the CLASSPATH and it yielded the original error. Running it directly from the shell and old version of autosys works fine.
I hope I understood your suggestion correctly and please let me know if you have any other ideas. I'm surprised why java would act differently with a different version of an AutoSys client logging into the same machine and environment. Thanks.
xiarce - I haven't heard anything regarding this, but I'll bring it up. Thanks.
Edited by: user4170063 on Apr 13, 2011 2:25 PM -
Error in ONS logs while implmenting FCF on oracle RAC from java program
I have java prog on client machine that uses properties from a property file.While making the connection to the ONS port on the oracle RAC server to implement FCF the program is throwing error as below:
java.sql.SQLException: Io exception: The Network Adapter could not establish the connection
and when i checked the ons logs for that node the logs are as follows:
Connection 5,199.xxx.xxxxxx,8200 header RCV failed (Connect
ion reset by peer) coFlags=1002a
These logs are generated only when java program tries to connect else the daemon started without any errors.
But sometime it connets and gives the desired output.
Please advice and do let me know in case you need more information.
Java program on the client machine is as follows..
* Oracle Support Services
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.Enumeration;
import java.util.Properties;
import java.util.ResourceBundle;
import oracle.jdbc.pool.OracleConnectionCacheManager;
import oracle.jdbc.pool.OracleDataSource;
public class FCFConnectionCacheExample
private OracleDataSource ods = null;
private OracleConnectionCacheManager occm = null;
private Properties cacheProperties = null;
public FCFConnectionCacheExample() throws SQLException
// create a cache manager
occm = OracleConnectionCacheManager.getConnectionCacheManagerInstance();
Properties props = loadProperties("fcfcache");
cacheProperties = new java.util.Properties();
cacheProperties.setProperty("InitialLimit", (String)props.get("InitialLimit"));
cacheProperties.setProperty("MinLimit", (String)props.get("MinLimit"));
cacheProperties.setProperty("MaxLimit", (String)props.get("MaxLimit"));
ods = new OracleDataSource();
ods.setUser((String)props.get("username"));
ods.setPassword((String)props.get("password"));
ods.setConnectionCachingEnabled(true);
ods.setFastConnectionFailoverEnabled(true);
ods.setConnectionCacheName("MyCache");
ods.setONSConfiguration((String)props.get("onsconfig"));
ods.setURL((String)props.get("url"));
occm.createCache("MyCache", ods, cacheProperties);
private Properties loadProperties (String file)
Properties prop = new Properties();
ResourceBundle bundle = ResourceBundle.getBundle(file);
Enumeration enumlist = bundle.getKeys();
String key = null;
while (enumlist.hasMoreElements())
key = (String) enumlist.nextElement();
prop.put(key, bundle.getObject(key));
return prop;
public void run() throws Exception
Connection conn = null;
Statement stmt = null;
ResultSet rset = null;
String sQuery =
"select sys_context('userenv', 'instance_name'), " +
"sys_context('userenv', 'server_host'), " +
"sys_context('userenv', 'service_name') " +
"from dual";
try
conn = null;
conn = ods.getConnection();
stmt = conn.createStatement();
rset = stmt.executeQuery(sQuery);
rset.next();
System.out.println("-----------");
System.out.println("Instance -> " + rset.getString(1));
System.out.println("Host -> " + rset.getString(2));
System.out.println("Service -> " + rset.getString(3));
System.out.println("NumberOfAvailableConnections: " +
occm.getNumberOfAvailableConnections("MyCache"));
System.out.println("NumberOfActiveConnections: " +
occm.getNumberOfActiveConnections("MyCache"));
System.out.println("-----------");
catch (SQLException sqle)
while (sqle != null)
System.out.println("SQL State: " + sqle.getSQLState());
System.out.println("Vendor Specific code: " +
sqle.getErrorCode());
Throwable te = sqle.getCause();
while (te != null) {
System.out.print("Throwable: " + te);
te = te.getCause();
sqle.printStackTrace();
sqle = sqle.getNextException();
finally
try
rset.close();
stmt.close();
conn.close();
catch (SQLException sqle2)
System.out.println("Error during close");
public static void main(String[] args)
System.out.println(">> PROGRAM using JDBC thin driver no oracle client required");
System.out.println(">> ojdbc14.jar and ons.jar must be in the CLASSPATH");
System.out.println(">> Press CNTRL C to exit running program\n");
try
FCFConnectionCacheExample test = new FCFConnectionCacheExample();
while (true)
test.run();
Thread.currentThread().sleep(10000);
catch (InterruptedException e)
System.out.println("PROGRAM Ended by user");
catch (Exception ex)
System.out.println("Error Occurred in MAIN");
ex.printStackTrace();
Some of the info i have deleted intensionally as this is confidential
Property file is as follows
# properties required for test
username=test
password=test
InitialLimit=10
MinLimit=10
MaxLimit=20
onsconfig=nodes=RAC-node1:port,RAC-node2:port
url=jdbc:oracle:thin:@(DESCRIPTION= \
(LOAD_BALANCE=yes) \
(ADDRESS=(PROTOCOL=TCP)(HOST=RAC-node1)(PORT=1521)) \
(ADDRESS=(PROTOCOL=TCP)(HOST=RAC-node1)(PORT=1521)) \
(CONNECT_DATA=(service_name=RAC_SERVICE)))Hi;
Please check below note:
Link Errors While Installing CRS & RAC Database software [ID 438747.1]
Codeword File $TIMEBOMB_CWD,/opt/aCC/newconfig/aCC.cwd Missing Or Empty [ID 552893.1]
Regard
Helios
Maybe you are looking for
-
I have 2 apple IDs from which I've bought different aps. How do I merge these?
By mistake I've made two different apple IDs and bought aps from both of them. How do I merge these into one ID so i can use them all with my iphone? Thanks!
-
I am a relatively new APPLE type of guy. I have a fancy new MACBOOK Pro and a fancy new IPHONE. I've left the Micosoft world and have decided to embrace iWork. Was happy to see app release of iwork for iphone - purchased it - and even though spreadsh
-
In Illustrator, I have a saved artwork, then I'm saving a copy as PDF, as usual. After I keep the AI file open, making some modifications which I don't want to save, so I close the file and click "Don't Save". Even though I clicked that, the file's m
-
so is there anyone out there that can vouch for using sleepless all the time with the display closed? i am just too paranoid to let the display be closed cause i dont want anything to happen to the screen. just wondering what some of your thoughts on
-
Simple Question About Using "Group by" Inside the Oracle XE Query Builder
Hi, I am a new user of Oracle 10g XE and I have built and populated some tables. I am trying to create a view (make a query) via using the Query Builder. I have chosen two attributes, say course_section_ID and trainer_ID in the same table. I choose t