SAP Business One - Java Connector

Question

Hi All,
<br/><br/>
We have a SAP Business One Application installed on a laptop. The requirement is to be able to use the SAP Java API to update tables in the system. We are not allowed to connect directly to the database and was advised to use the API instead.
<br/><br/>
The downloaded API that we are using is "sapjco30P_6-10005324 32 bit.zip". I have included the dll file contained in this package in the WINDOWS/system32 folder. I am using Eclipse as IDE and already included the "sapjco3.jar" in the classpath.
<br/><br/>
First question: Am I using the right Java Connector for SAP Business One?
<br/><br/>
I got sample code on how to connect using JCO:
<br/><br/>
package sample;<br/><br/>
import java.io.File;<br/>
import java.io.FileOutputStream;<br/>
import java.util.Properties;<br/>
import java.util.concurrent.CountDownLatch;<br/><br/>
import com.sap.conn.jco.AbapException;<br/>
import com.sap.conn.jco.JCoContext;<br/>
import com.sap.conn.jco.JCoDestination;<br/>
import com.sap.conn.jco.JCoDestinationManager;<br/>
import com.sap.conn.jco.JCoException;<br/>
import com.sap.conn.jco.JCoField;<br/>
import com.sap.conn.jco.JCoFunction;<br/>
import com.sap.conn.jco.JCoFunctionTemplate;<br/>
import com.sap.conn.jco.JCoStructure;<br/>
import com.sap.conn.jco.JCoTable;<br/>
import com.sap.conn.jco.ext.DestinationDataProvider;<br/><br/>
public class StepByStepClient<br/>
{<br/>
    static String ABAP_AS = "ABAP_AS_WITHOUT_POOL";<br/>
    static String ABAP_AS_POOLED = "ABAP_AS_WITH_POOL";<br/>
    static String ABAP_MS = "ABAP_MS_WITHOUT_POOL";<br/>
    static<br/>
    {<br/>
        Properties connectProperties = new Properties();<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, "localhost");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR,  "06");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, "000");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_USER,   "manager"); //sapuser<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, "manager"); //sap1234<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_LANG,   "en");<br/>
        createDataFile(ABAP_AS, "jcoDestination", connectProperties);<br/><br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, "3");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT,    "10");<br/>
        createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties);<br/><br/>
        connectProperties.clear();<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_MSHOST, "localhost");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_R3NAME,  "SID");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, "000");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_USER,   "manager"); //sapuser<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, "manager"); //sap1234<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_GROUP, "GROUP");<br/>
        connectProperties.setProperty(DestinationDataProvider.JCO_LANG,   "en");<br/>
        createDataFile(ABAP_MS, "jcoDestination", connectProperties);<br/>
    }<br/><br/>
    static void createDataFile(String name, String suffix, Properties properties)<br/>
    {<br/>
        File cfg = new File(name"."suffix);<br/>
        if(!cfg.exists())<br/>
        {<br/>
            try<br/>
            {<br/>
                FileOutputStream fos = new FileOutputStream(cfg, false);<br/>
                properties.store(fos, "for tests only !");<br/>
                fos.close();<br/>
            }<br/>
            catch (Exception e)<br/>
            {<br/>
                throw new RuntimeException("Unable to create the destination file " + cfg.getName(), e);<br/>
            }<br/>
        }<br/>
    }<br/><br/>
    public static void step1Connect() throws JCoException<br/>
    {<br/>
        JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS);<br/>
        System.out.println("Attributes:");<br/>
        System.out.println(destination.getAttributes());<br/>
        System.out.println();<br/><br/>
        destination = JCoDestinationManager.getDestination(ABAP_MS);<br/>
        System.out.println("Attributes:");<br/>
        System.out.println(destination.getAttributes());<br/>
        System.out.println();<br/>
    }<br/><br/>
    public static void main(String[] args) throws JCoException<br/>
    {<br/>
        step1Connect();<br/>
    }<br/>
}<br/>
<br/><br/>
Each time I run the application I run into an error:
<br/><br/>
Attributes:<br/>
Exception in thread "main" com.sap.conn.jco.JCoException: (102) JCO_ERROR_COMMUNICATION: Connect to SAP gateway failed<br/>
Connection parameters: TYPE=A DEST=ABAP_AS_WITHOUT_POOL ASHOST=localhost SYSNR=06 PCS=1<br/><br/>
LOCATION    CPIC (TCP/IP) on local host with Unicode<br/>
ERROR       connection to partner '127.0.0.1:3306' broken<br/>
TIME        Mon May 09 10:46:46 2011<br/>
RELEASE     720<br/>
COMPONENT   NI (network interface)<br/>
VERSION     40<br/>
RC          -6<br/>
MODULE      gwxx.c<br/>
LINE        646<br/>
DETAIL      NiIRead: P=127.0.0.1:3306; L=0.0.0.0:50496<br/>
SYSTEM CALL GwRead<br/>
ERRNO       10054<br/>
ERRNO TEXT  WSAECONNRESET: Connection reset by peer<br/>
COUNTER     2<br/><br/>
     at com.sap.conn.jco.rt.MiddlewareJavaRfc.generateJCoException(MiddlewareJavaRfc.java:662)<br/>
     at com.sap.conn.jco.rt.MiddlewareJavaRfc$JavaRfcClient.connect(MiddlewareJavaRfc.java:1362)<br/>
     at com.sap.conn.jco.rt.ClientConnection.connect(ClientConnection.java:721)<br/>
     at com.sap.conn.jco.rt.PoolingFactory.init(PoolingFactory.java:103)<br/>
     at com.sap.conn.jco.rt.ConnectionManager.createFactory(ConnectionManager.java:293)<br/>
     at com.sap.conn.jco.rt.DefaultConnectionManager.createFactory(DefaultConnectionManager.java:46)<br/>
     at com.sap.conn.jco.rt.ConnectionManager.getFactory(ConnectionManager.java:262)<br/>
     at com.sap.conn.jco.rt.RfcDestination.initialize(RfcDestination.java:509)<br/>
     at com.sap.conn.jco.rt.RfcDestination.getAttributes(RfcDestination.java:347)<br/>
     at com.sap.conn.jco.rt.RfcDestination.getAttributes(RfcDestination.java:27)<br/>
     at sample.StepByStepClient.step1Connect(StepByStepClient.java:74)<br/>
     at sample.StepByStepClient.main(StepByStepClient.java:304)<br/>
Caused by: RfcException: [null]<br/>
    message: Connect to SAP gateway failed<br/>
Connection parameters: TYPE=A DEST=ABAP_AS_WITHOUT_POOL ASHOST=localhost SYSNR=06 PCS=1<br/>
<br/><br/>
Second question: What seems to be the problem with my sample application? Do I need to use a different Java Connector for SAP Business One or SAP Business One does not support Java Connector?
<br/><br/>
Please help.
<br/><br/>
Thank you all.
Edited by: kevinroy on May 9, 2011 4:51 AM

Answer 1

Hi,<br/>
Thank you very much for the reply. I am now able to move forward with what I am doing.<br/>
I used the following code in connecting but am encountering an error:<br/>
public class ConnectSAP {
     // company interface
     public ICompany company;
     private SBOErrorMessage errMsg = null;
     public static void main(String[] args) {
          ConnectSAP company = new ConnectSAP();
          company.conn();
     //method make connection andinitialize company instance
     public int conn() {
          int rc = 0;
          try {
               company = SBOCOMUtil.newCompany();
               company.setServer("192.168.0.216"); //192.168.0.216
               company.setCompanyDB("SBODemoUS");
               company.setUserName("manager");
               company.setPassword("manager");
               company.setDbServerType(SBOCOMConstants.BoDataServerTypes_dst_MSSQL2005);
               company.setUseTrusted(new Boolean(false));
               company.setLanguage(SBOCOMConstants.BoSuppLangs_ln_English);
               company.setDbUserName("username"); 
               company.setDbPassword("password");
               //company.setAddonIdentifier("...");     
               //company.setLicenseServer("...");
               rc = company.connect();
               if (rc == 0) {
                    System.out.println("Connected!");
               } else {
                    errMsg = company.getLastError();
                    System.out.println(
                         "I cannot connect to database server: "
                              + errMsg.getErrorMessage()
                              + " "
                              + errMsg.getErrorCode());
          } catch (Exception e) {
               e.printStackTrace();
               return -1;
          return rc;
     public void freeConnection(){
          company.disconnect();
}<br/>
I am getting the error "Failed to Connect to SBOCommon -111".<br/>
Error is still the same even if I set UseTrusted to true and comment the DbUserName and DbPassword.<br/>
Do I need to specify the license? Or login to SAP before connecting?<br/>
Thank you.