on 09-13-2008 2:00 PM
Hello,
at the moment i am trying to program with java a connection to a sap test system (from the book abap objects).
Normally the conenction is built up by jco. My question is, because i haven´t got a login to the service marketplace,
is there any possibility to download and use jco for my test connection? I only try it for education.
Thank you very much
Bye
Hi you there !!!
You can navigate through http://service.sap.com/connectors.it's the place for all kind of SAP Connectors familly.
So, under the option *Overview choose SAP Java Connector link, at this point the left navigation menu will be wide open, so the last step is be able to find there the option "Tools&Services", the page with title Tools & Services: Support and Release Strategy, License Terms, Software Download will be opened, there is the place where you can find all versions of JCO for all supported OS.
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Hi Paulo, hi all!!
thank you for your reply.
Now i´ve got a new problem:
I downloaded the sapjco3-ntintel-3.0.0. package and
installed it according the instructions.
The os windows server 2003 has problems with the sap3jco.dll and i got following
error:
java.lang.UnsatisfiedLinkError: E:sapjcosapjco3.dll:
look, there is the same problem:
It´s a pity, that they haven´t found any solutions.
So i try my luck in the java programming section. g
Please could you help me.
See you, bye
Unicast
Hi GLM,
i just used the example from the jco package,
which i downloaded from sap service marketplace.
(I have changed the sap poperties).
With the jco 2 it works perfect. Only with new one
i got problems.
import java.io.File;
import java.io.FileOutputStream;
import java.util.Properties;
import java.util.concurrent.CountDownLatch;
import com.sap.conn.jco.AbapException;
import com.sap.conn.jco.JCoContext;
import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoField;
import com.sap.conn.jco.JCoFunction;
import com.sap.conn.jco.JCoFunctionTemplate;
import com.sap.conn.jco.JCoStructure;
import com.sap.conn.jco.JCoTable;
import com.sap.conn.jco.ext.DestinationDataProvider;
public class StepByStepClient
{
static String ABAP_AS = "ABAP_AS_WITHOUT_POOL";
static String ABAP_AS_POOLED = "ABAP_AS_WITH_POOL";
static String ABAP_MS = "ABAP_MS_WITHOUT_POOL";
static
{
Properties connectProperties = new Properties();
connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, "binmain");
connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR, "53");
connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, "000");
connectProperties.setProperty(DestinationDataProvider.JCO_USER, "JCOTEST");
connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, "JCOTEST");
connectProperties.setProperty(DestinationDataProvider.JCO_LANG, "en");
createDataFile(ABAP_AS, "jcoDestination", connectProperties);
connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, "3");
connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, "10");
createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties);
connectProperties.clear();
connectProperties.setProperty(DestinationDataProvider.JCO_MSHOST, "binmain");
connectProperties.setProperty(DestinationDataProvider.JCO_R3NAME, "BIN");
connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, "000");
connectProperties.setProperty(DestinationDataProvider.JCO_USER, "JCOTEST");
connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, "JCOTEST");
connectProperties.setProperty(DestinationDataProvider.JCO_GROUP, "PUBLIC");
connectProperties.setProperty(DestinationDataProvider.JCO_LANG, "en");
createDataFile(ABAP_MS, "jcoDestination", connectProperties);
}
static void createDataFile(String name, String suffix, Properties properties)
{
File cfg = new File(name+"."+suffix);
if(!cfg.exists())
{
try
{
FileOutputStream fos = new FileOutputStream(cfg, false);
properties.store(fos, "for tests only !");
fos.close();
}
catch (Exception e)
{
throw new RuntimeException("Unable to create the destination file " + cfg.getName(), e);
}
}
}
public static void step1Connect() throws JCoException
{
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS);
System.out.println("Attributes:");
System.out.println(destination.getAttributes());
System.out.println();
destination = JCoDestinationManager.getDestination(ABAP_MS);
System.out.println("Attributes:");
System.out.println(destination.getAttributes());
System.out.println();
}
public static void step2ConnectUsingPool() throws JCoException
{
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
destination.ping();
System.out.println("Attributes:");
System.out.println(destination.getAttributes());
System.out.println();
}
public static void step3SimpleCall() throws JCoException
{
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
JCoFunction function = destination.getRepository().getFunction("STFC_CONNECTION");
if(function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETLIST not found in SAP.");
function.getImportParameterList().setValue("REQUTEXT", "Hello SAP");
try
{
function.execute(destination);
}
catch(AbapException e)
{
System.out.println(e.toString());
return;
}
System.out.println("STFC_CONNECTION finished:");
System.out.println(" Echo: " + function.getExportParameterList().getString("ECHOTEXT"));
System.out.println(" Response: " + function.getExportParameterList().getString("RESPTEXT"));
System.out.println();
}
public static void step3WorkWithStructure() throws JCoException
{
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
JCoFunction function = destination.getRepository().getFunction("RFC_SYSTEM_INFO");
if(function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETLIST not found in SAP.");
try
{
function.execute(destination);
}
catch(AbapException e)
{
System.out.println(e.toString());
return;
}
JCoStructure exportStructure = function.getExportParameterList().getStructure("RFCSI_EXPORT");
System.out.println("System info for " + destination.getAttributes().getSystemID() + ":\n");
for(int i = 0; i < exportStructure.getMetaData().getFieldCount(); i++)
{
System.out.println(exportStructure.getMetaData().getName(i) + ":\t" + exportStructure.getString(i));
}
System.out.println();
//JCo still supports the JCoFields, but direct access via getXX is more efficient as field iterator
System.out.println("The same using field iterator: \nSystem info for " + destination.getAttributes().getSystemID() + ":\n");
for(JCoField field : exportStructure)
{
System.out.println(field.getName() + ":\t" + field.getString());
}
System.out.println();
}
public static void step4WorkWithTable() throws JCoException
{
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
JCoFunction function = destination.getRepository().getFunction("BAPI_COMPANYCODE_GETLIST");
if(function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETLIST not found in SAP.");
try
{
function.execute(destination);
}
catch(AbapException e)
{
System.out.println(e.toString());
return;
}
JCoStructure returnStructure = function.getExportParameterList().getStructure("RETURN");
if (! (returnStructure.getString("TYPE").equals("")||returnStructure.getString("TYPE").equals("S")) )
{
throw new RuntimeException(returnStructure.getString("MESSAGE"));
}
JCoTable codes = function.getTableParameterList().getTable("COMPANYCODE_LIST");
for (int i = 0; i < codes.getNumRows(); i++)
{
codes.setRow(i);
System.out.println(codes.getString("COMP_CODE") + '\t' + codes.getString("COMP_NAME"));
}
codes.firstRow();
for (int i = 0; i < codes.getNumRows(); i++, codes.nextRow())
{
function = destination.getRepository().getFunction("BAPI_COMPANYCODE_GETDETAIL");
if (function == null)
throw new RuntimeException("BAPI_COMPANYCODE_GETDETAIL not found in SAP.");
function.getImportParameterList().setValue("COMPANYCODEID", codes.getString("COMP_CODE"));
function.getExportParameterList().setActive("COMPANYCODE_ADDRESS",false);
try
{
function.execute(destination);
}
catch (AbapException e)
{
System.out.println(e.toString());
return;
}
returnStructure = function.getExportParameterList().getStructure("RETURN");
if (! (returnStructure.getString("TYPE").equals("") ||
returnStructure.getString("TYPE").equals("S") ||
returnStructure.getString("TYPE").equals("W")) )
{
throw new RuntimeException(returnStructure.getString("MESSAGE"));
}
JCoStructure detail = function.getExportParameterList().getStructure("COMPANYCODE_DETAIL");
System.out.println(detail.getString("COMP_CODE") + '\t' +
detail.getString("COUNTRY") + '\t' +
detail.getString("CITY"));
}//for
}
/**
* this example shows the "simple" stateful call sequence. Since all calls belonging to one
* session are executed within the same thread, the application does not need
* to take care about the SessionReferenceProvider. MultithreadedExample.java
* illustrates the more complex scenario, where the calls belonging to one session are
* executed from different threads.
*
* Note: this example uses Z_GET_COUNTER and Z_INCREMENT_COUNTER. The most ABAP systems
* contain function modules GET_COUNTER and INCREMENT_COUNTER, that are not remote enabled.
* Copy these functions to Z_GET_COUNTER and Z_INCREMENT_COUNTER (or implement as wrapper)
* and mark they remote enabled
* @throws JCoException
*/
public static void step4SimpleStatefulCalls() throws JCoException
{
final JCoFunctionTemplate incrementCounterTemplate, getCounterTemplate;
JCoDestination destination = JCoDestinationManager.getDestination(ABAP_MS);
incrementCounterTemplate = destination.getRepository().getFunctionTemplate("Z_INCREMENT_COUNTER");
getCounterTemplate = destination.getRepository().getFunctionTemplate("Z_GET_COUNTER");
if(incrementCounterTemplate == null || getCounterTemplate == null)
throw new RuntimeException("This example cannot run without Z_INCREMENT_COUNTER and Z_GET_COUNTER functions");
final int threadCount = 5;
final int loops = 5;
final CountDownLatch startSignal = new CountDownLatch(threadCount);
final CountDownLatch doneSignal = new CountDownLatch(threadCount);
Runnable worker = new Runnable()
{
public void run()
{
startSignal.countDown();
try
{
//wait for other threads
startSignal.await();
JCoDestination dest = JCoDestinationManager.getDestination(ABAP_MS);
JCoContext.begin(dest);
try
{
for(int i=0; i < loops; i++)
{
JCoFunction incrementCounter = incrementCounterTemplate.getFunction();
incrementCounter.execute(dest);
}
JCoFunction getCounter = getCounterTemplate.getFunction();
getCounter.execute(dest);
int remoteCounter = getCounter.getExportParameterList().getInt("GET_VALUE");
System.out.println("Thread-" + Thread.currentThread().getId() +
" finished. Remote counter has " + (loops==remoteCounter?"correct":"wrong") +
" value [" + remoteCounter + "]");
}
finally
{
JCoContext.end(dest);
}
}
catch(Exception e)
{
System.out.println("Thread-" + Thread.currentThread().getId() + " ends with exception " + e.toString());
}
doneSignal.countDown();
}
};
for(int i = 0; i < threadCount; i++)
{
new Thread(worker).start();
}
try
{
doneSignal.await();
}
catch(Exception e)
{
}
}
public static void main(String[] args) throws JCoException
{
step1Connect();
step2ConnectUsingPool();
step3SimpleCall();
step4WorkWithTable();
step4SimpleStatefulCalls();
}
}
Edited by: Unicast on Sep 14, 2008 4:33 PM
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