RFC

Connect to SAP using sapjco in Java. Environment OS: Windows10 Java version: 1.8 Library: sapjco3 Import libs Reference files: saro-lab/sap-jco-manager on Github Sapjco.jar can also be find in this site: JAR download Sapjco3.dll is needed to put in "C:/windows/system32/" or "C:/windows/SysWOW64/". (Depends on your running environment.) Import the sapjco3.jar into your project. Codes Devided into 3 parts: SAP connection configuration class. Functions to connect to SAP. RFC. SAP connection configuration class package com.sap; public class SapConn { // SAP server private String JCO_ASHOST; // SAP system number private String JCO_SYSNR; // SAP client private String JCO_CLIENT; // SAP user name private String JCO_USER; // SAP user password private String JCO_PASSWD; // SAP language private String JCO_LANG; // MAX connection private String JCO_POOL_CAPACITY; // MAX thread private String JCO_PEAK_LIMIT; // SAP ROUTER private String JCO_SAPROUTER; public SapConn(String JCO_ASHOST, String JCO_SYSNR, String JCO_CLIENT, String JCO_USER, String JCO_PASSWD, String JCO_LANG, String JCO_POOL_CAPACITY, String JCO_PEAK_LIMIT, String JCO_SAPROUTER) { this.JCO_ASHOST JCO_ASHOST; this.JCO_SYSNR JCO_SYSNR; this.JCO_CLIENT JCO_CLIENT; this.JCO_USER JCO_USER; this.JCO_PASSWD JCO_PASSWD; this.JCO_LANG JCO_LANG; this.JCO_POOL_CAPACITY JCO_POOL_CAPACITY; this.JCO_PEAK_LIMIT JCO_PEAK_LIMIT; this.JCO_SAPROUTER JCO_SAPROUTER; } public SapConn(){} public String getJCO_ASHOST() { return JCO_ASHOST; } public void setJCO_ASHOST(String JCO_ASHOST) { this.JCO_ASHOST JCO_ASHOST; } public String getJCO_SYSNR() { return JCO_SYSNR; } public void setJCO_SYSNR(String JCO_SYSNR) { this.JCO_SYSNR JCO_SYSNR; } public String getJCO_CLIENT() { return JCO_CLIENT; } public void setJCO_CLIENT(String JCO_CLIENT) { this.JCO_CLIENT JCO_CLIENT; } public String getJCO_USER() { return JCO_USER; } public void setJCO_USER(String JCO_USER) { this.JCO_USER JCO_USER; } public String getJCO_PASSWD() { return JCO_PASSWD; } public void setJCO_PASSWD(String JCO_PASSWD) { this.JCO_PASSWD JCO_PASSWD; } public String getJCO_LANG() { return JCO_LANG; } public void setJCO_LANG(String JCO_LANG) { this.JCO_LANG JCO_LANG; } public String getJCO_POOL_CAPACITY() { return JCO_POOL_CAPACITY; } public void setJCO_POOL_CAPACITY(String JCO_POOL_CAPACITY) { this.JCO_POOL_CAPACITY JCO_POOL_CAPACITY; } public String getJCO_PEAK_LIMIT() { return JCO_PEAK_LIMIT; } public void setJCO_PEAK_LIMIT(String JCO_PEAK_LIMIT) { this.JCO_PEAK_LIMIT JCO_PEAK_LIMIT; } public String getJCO_SAPROUTER() { return JCO_SAPROUTER; } public void setJCO_SAPROUTER(String JCO_SAPROUTER) { this.JCO_SAPROUTER JCO_SAPROUTER; } @Override public String toString() { return "SapConn{" + "JCO_ASHOST'" + JCO_ASHOST + '\'' + ", JCO_SYSNR'" + JCO_SYSNR + '\'' + ", JCO_CLIENT'" + JCO_CLIENT + '\'' + ", JCO_USER'" + JCO_USER + '\'' + ", JCO_PASSWD'" + JCO_PASSWD + '\'' + ", JCO_LANG'" + JCO_LANG + '\'' + ", JCO_POOL_CAPACITY'" + JCO_POOL_CAPACITY + '\'' + ", JCO_PEAK_LIMIT'" + JCO_PEAK_LIMIT + '\'' + ", JCO_SAPROUTER'" + JCO_SAPROUTER + '\'' + '}'; } } Functions to connect to SAP package com.sap; import java.io.File; import java.io.FileOutputStream; import java.util.Properties; import com.sap.conn.jco.*; import com.sap.conn.jco.ext.DestinationDataProvider; public class SAPConnUtils { private static final String ABAP_AS_POOLED "ABAP_AS_WITH_POOL"; /** * Establish SAP interface * @param name ABAP name * @param suffix file suffix * @param properties file content */ private static void createDataFile(String name, String suffix, Properties properties){ File cfg new File(name+"."+suffix); if(cfg.exists()){ cfg.deleteOnExit(); } try{ FileOutputStream fos new FileOutputStream(cfg, false); properties.store(fos, "for tests only !"); fos.close(); }catch (Exception e){ System.out.println("Create Data file fault, error msg: " + e.toString()); throw new RuntimeException("Unable to create the destination file " + cfg.getName(), e); } } /** * Init SAP connection */ private static void initProperties(SapConn sapConn) { Properties connectProperties new Properties(); // SAP server location connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, sapConn.getJCO_ASHOST()); // SAP system number connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR, sapConn.getJCO_SYSNR()); // SAP client connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, sapConn.getJCO_CLIENT()); // SAP user ID connectProperties.setProperty(DestinationDataProvider.JCO_USER, sapConn.getJCO_USER()); // SAP user PW connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, sapConn.getJCO_PASSWD()); // SAP language connectProperties.setProperty(DestinationDataProvider.JCO_LANG, sapConn.getJCO_LANG()); // MAX connection connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, sapConn.getJCO_POOL_CAPACITY()); // MAX connection threads connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, sapConn.getJCO_PEAK_LIMIT()); // SAP ROUTER connectProperties.setProperty(DestinationDataProvider.JCO_SAPROUTER, sapConn.getJCO_SAPROUTER()); createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties); } /** * Get SAP connection * @return SAP connection object */ public static JCoDestination connect(SapConn sapConn){ System.out.println("Connecting to SAP..."); JCoDestination destination null; initProperties(sapConn); try { destination JCoDestinationManager.getDestination(ABAP_AS_POOLED); destination.ping(); System.out.println("Connection estiblished."); } catch (JCoException e) { System.out.println("Connect SAP fault, error msg: " + e.toString()); } return destination; } } RFC import java.util.ArrayList; import com.sap.conn.jco.JCoDestination; import com.sap.conn.jco.JCoFunction; import com.sap.conn.jco.JCoTable; public class RfcFunctions { public ArrayList sendData(JCoDestination des, ArrayList dataList){ LT_DATA1Data LT_DATA1 null; ArrayList arrayReturnData new ArrayList(); JCoFunction null; try{ des.getRepository().getFunctionTemplate("SAP_RFC").getFunction(); if (null ) { throw new RuntimeException("get not found in sap"); } else { JCoTable INPUT_TABLE .getTableParameterList().getTable("TABLE_INPUT_NAME"); JCoTable OUTPUT_TABLE null; for(int i0;i < dataList.size();i++){ INPUT_TABLE.appendRow(); // Build your RFC request table input LT_DATA1 (LT_DATA1Data) dataList.get(i); INPUT_TABLE.setValue("TEST1", "VAL01"); INPUT_TABLE.setValue("DATA1", "DATA1"); INPUT_TABLE.setValue("DATA2", "DATA2"); INPUT_TABLE.setValue("DATA3", "DATA3"); INPUT_TABLE.setValue("DATA4", "DATA4"); } .execute(des); OUTPUT_TABLE .getTableParameterList().getTable("TABLE_RETURN_NAME"); System.out.println(OUTPUT_TABLE.toString()); if(OUTPUT_TABLE.getNumRows() ! 0){ for (int i 0; i < OUTPUT_TABLE.getNumRows(); i++) { // Get return table OUTPUT_TABLE.setRow(i); // Parse return table here. // arrayReturnData.add(LT_RETURNData); } }else{} } }catch(Exception e){ System.err.println(e.toString()); } return arrayReturnData; } } Send data to SAP Using RFC import java.util.ArrayList; import java.util.Iterator; import com.sap.conn.jco.JCoDestination; public class sendDatatoSAP { public String doProcess(String JCO_HOST, String JCO_CLIENT, String JCO_USER, String JCO_PASSWD)throws Exception { JCoDestination destination null; String returnStr ""; // Configuration of SAP connection SapConn con new SapConn(JCO_HOST, "00", JCO_CLIENT, JCO_USER, JCO_PASSWD, "ZH", "", "", ""); destination SAPConnUtils.connect(con); RfcFunctions RfcFunctions new RfcFunctions(); ArrayList dataList new ArrayList(); ArrayList LT_RETURN new ArrayList(); dataList.add(new LT_DATA1Data("TEST1","Data1","Data2","Data3","Data4")); LT_RETURN RfcFunctions.sendData(destination, dataList); Iterator iterator LT_RETURN.iterator(); if(iterator.hasNext()){ while(iterator.hasNext()){ returnStr + iterator.next(); returnStr + "\n"; } }else{ returnStr "Success!"; } return returnStr; Above, ArrayList and are defined by user. You can use other struct design.

RFC

[Java] Connect to SAP Using Sapjco

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