java - SAP jco を使用して複数の SAP システムにログインする方法

Question

私は SAP JCo を初めて使用します。SAP Jco を使用して複数の SAP システムを呼び出す必要があります。しかし、複数のSAPシステムを同時に接続することはできません......

コードは次のとおりです。

package com.sap.test;


import java.util.Properties;

import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoRepository;
import com.sap.conn.jco.ext.DestinationDataProvider;
import com.sap.conn.jco.ext.Environment;
import com.sap.utils.MyDestinationDataProvider;
import com.sap.utils.SapSystem;


public class TestMultipleSAPConnection {

    public static Properties properties;
    public static JCoDestination dest = null;
    public static JCoRepository repos = null;
    public static SapSystem system = null;
    String SAP_SERVER = "SAP_SERVER";
    MyDestinationDataProvider myProvider = null;



    public static void main(String[] args) throws JCoException {            
        getConnection_CRM();
        getConnection_R3();     
    }


public static JCoDestination getConnection_R3() {

        boolean connR3_flag = true;
        JCoDestination dest = null;
        JCoRepository repos = null;

        String SAP_SERVER = "SAP_SERVER";
        Properties properties = new Properties();
        SapSystem system = new SapSystem();

        system.setClient("100");
        system.setHost("r3devsvr.myweb.com");
        system.setLanguage("en");
        system.setSystemNumber("00");
        system.setUser("SAP-R3-USER");
        system.setPassword("init1234");

        properties.setProperty("jco.client.ashost", system.getHost());
        properties.setProperty("jco.client.sysnr", system.getSystemNumber());
        properties.setProperty("jco.client.client", system.getClient());
        properties.setProperty("jco.client.user", system.getUser());
        properties.setProperty("jco.client.passwd", system.getPassword());
        properties.setProperty("jco.client.lang", system.getLanguage());
        System.out.println("******* Connection Parameter Set *******");
        MyDestinationDataProvider myProvider = new MyDestinationDataProvider();
        System.out.println("******* Destination Provider Set *******");
        myProvider.changePropertiesForABAP_AS(properties);
        if (!Environment.isDestinationDataProviderRegistered()) {
            System.out.println("Registering Destination Provider R3");
            Environment.registerDestinationDataProvider((DestinationDataProvider) myProvider);
        }else{
            System.out.println("Destination Provider already set..R3");
            connR3_flag = false;
        }
        try {
            dest = JCoDestinationManager.getDestination((String) SAP_SERVER);
            repos = dest.getRepository();
            if (repos == null) {
                System.out.println("Repos is null.....");
            } else {
                System.out.println("Repos is not null.....");
            }
            System.out.println("After getting repos...");
            if(connR3_flag){
               System.out.println("R3 Connection Successfull...");
            }
        } catch (Exception ex) {
            System.out.println(ex);
        }
        return dest;
    }

    public static JCoDestination getConnection_CRM() {
        boolean connCRM_flag = true;
        JCoDestination dest = null;
        JCoRepository repos = null;

        String SAP_SERVER = "SAP_SERVER";
        Properties properties = new Properties();
        SapSystem system = new SapSystem();

        system.setClient("200");
        system.setHost("crmdevsvr.myweb.com");
        system.setLanguage("en");
        system.setSystemNumber("00");
        system.setUser("SAP-CRM-USER");
        system.setPassword("init1234");

        properties.setProperty("jco.client.ashost", system.getHost());
        properties.setProperty("jco.client.sysnr", system.getSystemNumber());
        properties.setProperty("jco.client.client", system.getClient());
        properties.setProperty("jco.client.user", system.getUser());
        properties.setProperty("jco.client.passwd", system.getPassword());
        properties.setProperty("jco.client.lang", system.getLanguage());
        System.out.println("******* Connection Parameter Set *******");
        MyDestinationDataProvider myProvider = new MyDestinationDataProvider();
        System.out.println("******* Destination Provider Set *******");
        myProvider.changePropertiesForABAP_AS(properties);
        if (!Environment.isDestinationDataProviderRegistered()) {
            System.out.println("Registering Destination Provider CRM");
            Environment.registerDestinationDataProvider((DestinationDataProvider) myProvider);
        }else{
            System.out.println("Destination Provider already set..CRM");
            connCRM_flag = false;
        }
        try {
            dest = JCoDestinationManager.getDestination((String) SAP_SERVER);
            repos = dest.getRepository();
            if (repos == null) {
                System.out.println("Repos is null.....");
            } else {
                System.out.println("Repos is not null.....");
            }
            System.out.println("After getting repos...");
            if(connCRM_flag){
               System.out.println("CRM Connection Successfull...");
            }
        } catch (Exception ex) {
            System.out.println(ex);
        }

        return dest;

    }

}