java調用SAP RFC函數

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package jcoapp;

import com.sap.mw.jco.*;
import com.sap.conn.jco.*;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.util.Properties;

/**
 *
 * @author luolai
 */
import com.sap.conn.jco.ext.DestinationDataProvider;
import com.sap.mw.jco.JCO;
import com.sap.mw.jco.JCO.Table;
import java.util.Vector;

public class JCOClientDemo {

    static String ABAP_AS = "ABAP_AS_WITHOUT_POOL";
    static String ABAP_AS_POOLED = "ABAP_AS_WITH_POOL";
    static String DESTINATION_NAME1 = "ABAP_AS_WITHOUT_POOL";
    static String DESTINATION_NAME2 = "ABAP_AS_WITH_POOL";
//    private String JCO_ASHOST = "";
//    private String JCO_SYSNR = "";
//    private String JCO_CLIENT = "";
//    private String JCO_USER = "";
//    private String JCO_PASSWD = "";
//    private String JCO_LANG = "";
    LogInfo loginfo = new LogInfo();

    public JCOClientDemo(String JCO_ASHOST, String JCO_SYSNR, String JCO_CLIENT, String JCO_USER, String JCO_PASSWD,
            String JCO_LANG) {
        Properties connectProperties = new Properties();
        connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, JCO_ASHOST);
        connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR, JCO_SYSNR);
//      connectProperties.setProperty(DestinationDataProvider.JCO_R3NAME, "C01");
        connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, JCO_CLIENT);
        connectProperties.setProperty(DestinationDataProvider.JCO_USER, JCO_USER);
        connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, JCO_PASSWD);
        connectProperties.setProperty(DestinationDataProvider.JCO_LANG, JCO_LANG);
//        createDataFile(ABAP_AS, "jcoDestination", connectProperties);

        connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, "3");
        connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, "5");
        createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties);
    }

    static void createDataFile(String name, String suffix, Properties properties) {
        File cfg = new File(name + "." + suffix);
        if (cfg.exists()) {
            cfg.delete();
        }
        if (!cfg.exists()) {
            FileOutputStream fos = null;
            try {
                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);
            } finally {
                try {
                    fos.close();
                } catch (IOException e) {
                }
            }
        }
    }

    public static String callFuction(String strF, String echo) throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
        JCoFunction function = destination.getRepository().getFunction(strF);
        if (function == null) {
            throw new RuntimeException(strF + " not found in SAP.");
        }
        try {
            function.execute(destination);
        } catch (AbapException e) {
            System.out.println(e.toString());
            return "Error";
        }

        //System.out.println(" Echo: " + function.getExportParameterList().toXML());
        //System.out.println(" Echo: " + function.getExportParameterList().getString(echo));
        return function.getExportParameterList().getString(echo);
    }

    public static void call(String thread) throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
        JCoFunction function = destination.getRepository().getFunction("STFC_CONNECTION");
        if (function == null) {
            throw new RuntimeException("STFC_CONNECTION 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("thread:" + thread);
        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 step1Connect() throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
        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("STFC_CONNECTION 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("RFC_SYSTEM_INFO 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(DESTINATION_NAME2);
        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"));
        }
        System.out.println("COMP_CODE" + '\t' + "COMP_NAME");
        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();
        System.out.println("COMP_CODE" + '\t' + "COUNTRY" + '\t' + "CITY");
        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
    }

    public static void main(String[] args) {
        // Print the version of the underlying JCO library
        System.out.println("\nVersion of the JCO-library:\n" + "---------------------------\n" + JCO.getMiddlewareVersion());
        try {
            System.out.println(JCOClientDemo.callFuction("ZWMF_GET_FUNCTION", "ITAB"));
            //JCOClientDemo.call("");
            //JCOClientDemo.step4WorkWithTable();
        } catch (JCoException e) {
            e.printStackTrace();
        }
    }
}