SAP JCo 例子 | SAP Java Connector 参考 ｜ Java 调用 SAP 接口¶

import java.io.File;
import java.io.FileOutputStream;
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.ext.DestinationDataProvider;

public class Generator {

    static String DESTINATION_NAME1 = "ABAP_AS_WITHOUT_POOL";
    static String DESTINATIOn_NAME2 = "ABAP_AS_WITH_POOL";

    static void createDestinationDataFile(String destinationName, Properties connectProperties) {

        File destConfigiration = new File(destinationName + ".jcoDestination");

        try {
            FileOutputStream fos = new FileOutputStream(destConfigiration, false);
            connectProperties.store(fos, "Generator");
            fos.close();
        } catch (Exception e) {
            throw new RuntimeException("Unable create file!");
        }
    }

    public static void stepConnectionWithoutPool() throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination(DESTINATION_NAME1);
        System.out.println("Attributes:");
        System.out.println(destination.getAttributes());
        System.out.println();

    }

    public static void stepConnectionWithPool() throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination(DESTINATIOn_NAME2);

        destination.ping();

        System.out.println("Attributes");
        System.out.println(destination.getAttributes());
        System.out.println();

    }

    public static void main(String[] args) throws JCoException {

        Properties connectProperties = new Properties();

        // Basic configuration
        connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, "{{your host}}");
        connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR, "00");
        connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, "500");
        connectProperties.setProperty(DestinationDataProvider.JCO_USER, "{{USERNAME}}");
        connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, "{{PASSWORD}}");
        connectProperties.setProperty(DestinationDataProvider.JCO_LANG, "ZH");
        connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, "3");
        connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, "10");

        // Further configuration
        connectProperties.setProperty(DestinationDataProvider.JCO_SERIALIZATION_FORMAT, "columnBased");
        connectProperties.setProperty(DestinationDataProvider.JCO_NETWORK, "lan");
        connectProperties.setProperty(DestinationDataProvider.JCO_EXPIRATION_TIME, "600000");
        connectProperties.setProperty(DestinationDataProvider.JCO_EXPIRATION_PERIOD, "120000");


        createDestinationDataFile(DESTINATION_NAME1, connectProperties);
        createDestinationDataFile(DESTINATIOn_NAME2, connectProperties);

        System.out.println("Generate DESTINATION_NAME1 finished!");
        System.out.println("Generate DESTINATION_NAME2 finished!");

        // Test connection
        Generator.stepConnectionWithoutPool();
        Generator.stepConnectionWithPool();
    }

}

import com.sap.conn.jco.AbapException;
import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoFunction;
import com.sap.conn.jco.JCoStructure;
import com.sap.conn.jco.JCoTable;

public class Invoker {

    public static void main(String[] args) throws JCoException {

        String functionName = "BAPI_COMPANYCODE_GETLIST";  // 调用的 Function moudule 名称，需要开启远程调用
        JCoDestination destination = JCoDestinationManager.getDestination("ABAP_AS_WITH_POOL");  // 获取工程根目录下的文件 ABAP_AS_WITH_POOL.jcoDestination
        JCoFunction function = destination.getRepository().getFunction(functionName);

        if (function == null) {
            throw new RuntimeException(functionName + " not found in SAP");
        }

        try {
            function.execute(destination);
        } catch (AbapException e) {
            System.out.println(e);
            return;
        }


        JCoStructure exportStructure = function.getExportParameterList().getStructure("RETURN");  // 获取导出参数

        for(int i = 0; i < exportStructure.getMetaData().getFieldCount(); i++) {
            System.out.println(exportStructure.getString(i));
        }

        JCoTable exportTable = function.getTableParameterList().getTable("COMPANYCODE_LIST");  // 获取 Table 参数

        for(int i = 0; i < exportTable.getNumRows(); i++) {
            exportTable.setRow(i);

            System.out.println(exportTable.getString("COMP_CODE") + "\t" + exportTable.getString("COMP_NAME"));

        }



    }

}

JCO.Pool pool = JCO.getClientPoolManage().getPool(POOL_NAME);

pool.setAbapDebug(true);