Expert Knowledgebase
Java/SAP development with Austin Sincock
Switching from Java to ERP
(21 JUN 2004)
How do I switch from Java development into the ERP field? This question may not be very technical, but I really hope to get your suggestion. I am currently a Java developer, having several years of experience ...
Retrieving table data from SAP through JCo
(21 JUN 2004)
I need to retrieve data from a specific table in the SAP database using JCo.
Is this possible? If so, please give me some pointers on how to go about it.
How far has WebDynpro come in regards to J2EE, ABAP and .NET?
(21 JUN 2004)
How far has WebDynpro come in regards to J2EE, ABAP and Microsoft's .NET?
Resources for connecting into SAP with C++
(21 JUN 2004)
What are some resources for connecting into SAP with C++ similar to JCo?
Resolving image source tags in a Web browser
(21 JUN 2004)
I'm doing a project using JSP in Jbuilder6, and I want to know how to embed a picture to my JSP file? I use this tag:
<img src="E:/WINDOWS/jbproject/MailServer/defaultroot/hashiye.bmp" align="right">
...
Are J2EE components kept in the ABAP Data Dictionary?
(21 JUN 2004)
I'm just starting to get familiar with the J2EE Environment, and I have a question: Are the J2EE components kept in the (ABAP) Data Dictionary, or is there another place in which those components are located?
Obtaining and using JCo
(21 JUN 2004)
I need JCo for interacting with our SAP database. Will I be able to get JCo knowing the OSS ID and password? Also, what are the different ways for interacting with SAP database using JCo using Tomcat Server? ...
WebDynpro requirements
(21 JUN 2004)
What is the requirement (SAP release) to use WebDynpro?
Tips and tutorials on JCo
(21 JUN 2004)
Can you please give me a pointer to where I can find some tutorials for JAVA/JSP/JCo programming for connection SAP R/3 to get or send data? Thank you very much for your reply.
Error message 'no sapjcorfc in java.library.path'
(21 JUN 2004)
While compiling a piece of Java code making SAP connections, I get this error:
Exception in thread "main" java.lang.ExceptionInInitializerError: JCO.classInitialize(): Could not load middlew
are layer 'com.s...
Java and XML
(21 JUN 2004)
I am creating a Web application that will issue an RFC call to SAP to execute a function module to read selected tables based on the data that was passed. We plan to create the application using Java. Can the ...
Sending work items to approving office for PO release
(21 JUN 2004)
I need to trigger a Workflow to send a work item to an approving office to
release a PO. But before triggering the event I need to check the PO doc type
to see if it fulfills certain conditions. Where can I do...
SAP users and JCo connection pools
(21 JUN 2004)
There are occasions where we need to invoke functions using the end user's credentials. Is there a way to temporarily appropriate pooled connections for this purpose (for performance reasons)? And along the sam...
Retrieving table contents with JSP
(21 JUN 2004)
Using the examples of JCo and RFC functions found on this site I am trying to create a small JSP page that will retrieve the contents of some tables for me. I am very new to SAP but not to Java.
My code is ...
What is BMP?
(21 JUN 2004)
What is BMP short for? What is it?
Error when connecting to R/3 4.6C using JCo
(21 JUN 2004)
We're trying to connect to SAP R/3 4.6c using JCo, however keep getting the following error message:
[java] com.sap.mw.jco.JCO$Exception: (102) RFC_ERROR_COMMUNICATION: Connect
from SAP gateway to R...
Different ways to extract SAP table data
(21 JUN 2004)
I need to send data extracted from SAP tables to an external system like a server. Would it be preferable for JCo to call the BAPI and get an entire extract in one call, or is it possible for SAP to connect to ...
Connecting to SAP via RFC and J2EE
(21 JUN 2004)
How do I connect to SAP database and access the RFC using J2EE architecture? And what are the packages to be imported in the Java application in order to communicate with SAP and to access RFCs?
Retrieving data from and external database in ABAP
(21 JUN 2004)
How can we get external database data (SQLserver, MS Access) from ABAPs? Can we use RFCs or BAPIs?
Important restrictions surrounding the use of SAP's JCo connector
(21 JUN 2004)
In general terms, which are the most important restrictions when using the Java Connector for SAP and Java RFCs for SAP?
Keeping the J2EE engine from starting automatically
(21 JUN 2004)
What is the best way to prohibit the J2EE engine on your central instance of Web AS 6.20 to start? We have several dialog instances which we intend to run a SAP J2EE cluster on, but we do not want the central i...
Where can I get RFC SDK?
(21 JUN 2004)
Where can I get (download) RFC SDK?
Problems starting JCo in Tomcat
(21 JUN 2004)
I've got a problem using jco.jar with Tomcat. When I start my *.jsp-site I recieve following error-message (shortened):
HTTP Status 500 -
type: Exception report
message: description The server encountered ...
Problems establishing multiple RFC connections
(21 JUN 2004)
I have successfully used JCo to connect to R/3 and make BAPI calls. However, I got errors when I establish more than 100 concurrent RFC connections.
I have set the connection pooling to 200. The error:
com....
Preferred ways of connecting to SAP R/3
(21 JUN 2004)
Which is the most preferred way of connecting to SAP R/3? Do users connect using a common username/password? Do they connect using individual usernames/passwords?
Authorization problems when connecting to SAP via JCo
(21 JUN 2004)
I'm running a test class that calls into SAP via JCo. I'm getting the following error:
Error authenticating to SAP host: com.sap.mw.jco.JCO$Exception: (103) RFC_ERROR_LOGON_FAILURE: User XXXXXXXX has no RFC ...
Java CLASSPATH variables trouble
(21 JUN 2004)
I've just installed j2sdk1.4.0 in my win XP machine. Now it is compiling the program correctly (i.e. javac Demo.java) but during execution (i.e. java Demo) it is giving the following error: "Exception in threa...
Material Master problems
(21 JUN 2004)
I have successfully used JCo to connect to R/3 and make BAPI calls. However, I have some problems creating the Material Master. Any advice?
JCo/JAR compilation issues
(21 JUN 2004)
I have a problem with JCo and JAR:
When I compile my code and execute the main batchscan.class by typing "java batchscan" the program works perfectly.
But when I try to create a sap.jar file, by including m...
Passing client x.509 certificate to JCO.createClient()
(21 JUN 2004)
Is there an example to see how to pass the client x.509 certificate to JCO.createClient()?
Sharing JCo connection pool across different Web apps
(21 JUN 2004)
How do I share a JCo connection pool across different Web applications?
Recognizing middleware exception when porting JCo code
(21 JUN 2004)
How do I resolve a middleware exception when porting JCo code from Windows to UNIX?
Making an SQL call against an SAP table
(21 JUN 2004)
How do I make a SQL call against an SAP table?
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