NoClassDefFoundError

[Rauhl Roy]

hi,

below mentioned code us not working due to NO clss found error..

it works on Jbuilder but not working on MY eclipse 7.0

please help


java.lang.NoClassDefFoundError
at com.sap.mw.jco.MiddlewareJRfc$Client.connect(MiddlewareJRfc.java:1008)
at com.sap.mw.jco.JCO$Client.connect(JCO.java:3238)
at com.bapi.Bapi2.TutorialBapi2(Bapi2.java:51)
at com.bapi.Bapi2.main(Bapi2.java:241)
Exception in thread "main"

  
/**
 * <p>Title: </p>
 *
 * <p>Description: </p>
 *
 * <p>Copyright: Copyright (c) 2008</p>
 *
 * <p>Company: </p>
 *
 * @author not attributable
 * @version 1.0
 */
package com.bapi;
 
import com.sap.mw.jco.*;
 
public class Bapi2 extends Object {
    public Bapi2() {
        try {
            jbInit();
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }
 
    JCO.Client mConnection;
 
    JCO.Repository mRepository;
 
    public void TutorialBapi2() {
 
        try {
 
            // Change the logon information to your own system/user
 
            mConnection =
 
                    JCO.createClient("800", // SAP client
 
                                     "abcd", // userid
 
                                     "efgh", // password
 
                                     null, // language
 
                                     "****", // application server host name
 
                                     "00"); // system number
 
            mConnection.connect();
 
            mRepository = new JCO.Repository("ARAsoft", mConnection);
 
        }
 
        catch (Exception ex) {
 
            ex.printStackTrace();
 
            System.exit(1);
 
        }
 
        JCO.Function function = null;
 
        JCO.Table codes = null;
 
        try {
 
            function = this.createFunction("BAPI_COMPANYCODE_GETLIST");
 
            if (function == null) {
 
                System.out.println("BAPI_COMPANYCODE_GETLIST" +
 
                                   " not found in SAP.");
 
                System.exit(1);
 
            }
 
            mConnection.execute(function);
 
            JCO.Structure returnStructure =
 
                    function.getExportParameterList().getStructure("RETURN");
 
            if (!(returnStructure.getString("TYPE").equals("") ||
 
                  returnStructure.getString("TYPE").equals("S"))) {
 
                System.out.println(returnStructure.getString("MESSAGE"));
 
                System.exit(1);
 
            }
 
            codes =
 
                    function.getTableParameterList().getTable(
                            "COMPANYCODE_LIST");
 
            codes.setRow(2);
 
            codes.deleteRow();
 
            codes.deleteRow(5);
 
            codes.appendRow();
 
            codes.setValue("0005", "COMP_CODE");
 
            codes.setValue("Does not exist", "COMP_NAME");
 
            codes.appendRows(2);
 
            codes.setValue("TR00", "COMP_CODE");
 
            codes.setValue("Does not exist either", "COMP_NAME");
 
            codes.nextRow();
 
            codes.setValue("TR01", "COMP_CODE");
 
            codes.setValue("Nor does this", "COMP_NAME");
 
            for (int i = 0; i < codes.getNumRows(); i++) {
 
                codes.setRow(i);
 
                System.out.println(codes.getString("COMP_CODE") + '\t' +
                                   codes.getString("COMP_NAME"));
 
            }
 
        }
 
        catch (Exception ex) {
 
            ex.printStackTrace();
 
            System.exit(1);
 
        }
 
        try {
 
            codes.firstRow();
 
            for (int i = 0; i < codes.getNumRows(); i++, codes.nextRow()) {
 
                function = this.createFunction("BAPI_COMPANYCODE_GETDETAIL");
 
                if (function == null) {
 
                    System.out.println("BAPI_COMPANYCODE_GETDETAIL" +
 
                                       " not found in SAP.");
 
                    System.exit(1);
 
                }
 
                function.getImportParameterList().
 
                        setValue(codes.getString("COMP_CODE"), "COMPANYCODEID");
 
                mConnection.execute(function);
 
                JCO.Structure returnStructure =
 
                        function.getExportParameterList().getStructure("RETURN");
 
                if (!(returnStructure.getString("TYPE").equals("") ||
 
                      returnStructure.getString("TYPE").equals("S") ||
 
                      returnStructure.getString("TYPE").equals("W"))) {
 
                    System.out.println(returnStructure.getString("MESSAGE"));
 
                }
 
                JCO.Structure detail =
 
                        function.getExportParameterList().
 
                        getStructure("COMPANYCODE_DETAIL");
 
                System.out.println(detail.getString("COMP_CODE") + '\t' +
 
                                   detail.getString("COUNTRY") + '\t' +
 
                                   detail.getString("COMPANY"));
 
            }
 
        }
 
        catch (Exception ex) {
 
            ex.printStackTrace();
 
            System.exit(1);
 
        }
 
        mConnection.disconnect();
 
    }
 
    public JCO.Function createFunction(String name) throws Exception {
 
        try {
 
            IFunctionTemplate ft =
 
                    mRepository.getFunctionTemplate(name.toUpperCase());
 
            if (ft == null) {
 
                return null;
            }
 
            return ft.getFunction();
 
        }
 
        catch (Exception ex) {
 
            throw new Exception("Problem retrieving JCO.Function object.");
 
        }
 
    }
 
    public static void main(String args[]) {
 
        Bapi2 app = new Bapi2();
        app.TutorialBapi2();
    }
 
    private void jbInit() throws Exception {
    }
 
}
  

[Campbell Ritchie]

This looks as if it might be a classpath problem. Does MyEclipse have a "build path" option like Eclipse? Can you use that to import an external jar?

[Rauhl Roy]

Originally posted by Campbell Ritchie:
This looks as if it might be a classpath problem. Does MyEclipse have a "build path" option like Eclipse? Can you use that to import an external jar?

yes it has build path option to add extrenal jar files.