http://www.sapdev.co.uk/java/jco/jco_callfunc.htm

Example JCo code to call SAP function module

Example code which calls an SAP function module 'BAPI_MATERIAL_GETLIST' with inport parameters and retrieves the resultant data.

//package ws; //Replace with name of your package

import com.sap.mw.jco.*;

public class CallFunction extends Object {

public static void main(String args[]) {CallFunction app = new CallFunction();

}int count;JCO.Client mConnection;JCO.Repository mRepository;String[] SAPInterfaces;public CallFunction() {

try {// Logon info

mConnection = JCO.createClient("500", // SAP client "username", // userid

"password", // password null, // language "server name", // application server host name

"00"); // system numbermConnection.connect();mRepository = new JCO.Repository("ARAsoft", mConnection);

} catch (Exception ex) {ex.printStackTrace();System.exit(1);

}

JCO.Function function = null;JCO.Table codes = null;// codes.firstRow();

try {function = this.createFunction("BAPI_MATERIAL_GETLIST");

if (function == null) {System.out.println(

"BAPI_MATERIAL_GETLIST" + " not found in SAP.");

System.exit(1);}

codes = function.getTableParameterList().getTable("MATNRSELECTION");

codes.appendRows(2); // Add two rows to internal tablecodes.setValue("I", "SIGN");codes.setValue("EQ", "OPTION");codes.setValue("P1001087", "MATNR_LOW");codes.setValue("", "MATNR_HIGH");

codes.nextRow(); // Move onto next rowcodes.setValue("I", "SIGN");codes.setValue("EQ", "OPTION");codes.setValue("P1001088", "MATNR_LOW");codes.setValue("", "MATNR_HIGH");

mConnection.execute(function);

// JCO.Table returnTable1 =//

function.getTableParameterList().getTable("MATERIALSHORTDESCSEL");// System.out.println(returnTable1);

// JCO.Table returnTable2 =//

function.getTableParameterList().getTable("MATNRLIST");// System.out.println(returnTable2);

// Output result Material list tableSystem.out.println(

function.getTableParameterList().getValue("MATNRLIST"));System.out.println(

function.getTableParameterList().getString("MATNRLIST"));

// System.out.println(//

function.getTableParameterList().getValue("MATERIALSHORTDESCSEL"));//// System.out.println(//

function.getTableParameterList().getString("MATERIALSHORTDESCSEL"));

// Output Selection tableSystem.out.println(

function.getTableParameterList().getValue("MATNRSELECTION"));System.out.println(

function.getTableParameterList().getString("MATNRSELECTION"));

} catch (Exception ex) {ex.printStackTrace();System.exit(1);

}

}

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.");

}}

}

Using the Java connector (JCo) to retrieve data from an SAP system

/// This Program ll work if u have are your pre-requirements completed.. //Do post if you guys need more help on this.

import com.sap.mw.jco.*; public class CallFunction extends Object { JCO.Client mConnection; JCO.Repository mRepository; JCO.Table codes; public JCO.Function createFunction (String name) throws Exception { IFunctionTemplate ft = mRepository.getFunctionTemplate (name.toUpperCase ()); if (ft == null) return null; return ft.getFunction (); } public void Connect1() { try { // Change the logon information to your own system/user mConnection =

JCO.createClient("800", // SAP client "******", // userid "******", // password "EN", // language "server", // application server host name "01"); // system number mConnection.connect(); //System.out.println(mConnection.getAttributes()); mRepository = new JCO.Repository ("SAPJCorep", mConnection); JCO.Function function = null; function = this.createFunction("BAPI_COMPANYCODE_GETLIST"); mConnection.execute(function); JCO.Structure returnStructure = function.getExportParameterList().getStructure ("RETURN"); if (! (returnStructure.getString("TYPE").equals("") || returnStructure.getString("TYPE").equals("S")) ) { System.out.println("Returned Message :" + returnStructure.getString ("MESSAGE")); System.exit (1); } System.out.println("Returned Name :" + returnStructure.getName().toString()); ////////////////////////////////////////////////////////////////////////////// JCO.Table codes = null; codes = function.getTableParameterList ().getTable("COMPANYCODE_LIST"); for (int i = 0; i < codes.getNumRows(); i++) { codes.setRow(i); System.out.println(codes.getString("COMP_CODE") + ' ' + codes.getString("COMP_NAME")); } // JCO.Table codes = null; codes = function.getTableParameterList ().getTable("COMPANYCODE_LIST"); for (int i = 0; i < codes.getNumRows(); i++, codes.nextRow() ) { System.out.println(codes.getString("COMP_CODE") + ' ' + codes.getString("COMP_NAME") ); }

/////////////////////////////////////////////////////////////////////////// mConnection.disconnect(); } catch (Exception ex) { ex.printStackTrace(); System.exit(1); }

}

public static void main (String args[]) { CallFunction app = new CallFunction(); app.Connect1(); } }