Java连接SAP

1.在SE37中创建z_get_scar.

FUNCTION z_get_scar.
*"----------------------------------------------------------------------
*"*"本地接口：
*"  IMPORTING
*"     VALUE(I_CARRID) LIKE  SCARR-CARRID
*"  EXPORTING
*"     VALUE(E_CARRNAME) LIKE  SCARR-CARRNAME
*"----------------------------------------------------------------------
  SELECT SINGLE carrname
     INTO e_carrname
     FROM scarr
     WHERE carrid = i_carrid.
  IF sy-subrc IS NOT INITIAL.
    RAISE carr_not_found.
  ENDIF.
ENDFUNCTION.

特别注意点：

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2.创建配置文件ABAP_AS.jcoDestionation

jco.client.lang=en  ##语言设置
jco.client.client=001  ##客户端编码
jco.client.passwd=sapadmin2  ##登陆密码
jco.client.user=bcuser ##登陆账号
jco.client.sysnr=00   ##实例编号
jco.client.ashost=192.168.65.100  ##sap服务器ip

内容参考

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3.Java编码

import com.sap.conn.jco.JCoDestination;
import com.sap.conn.jco.JCoDestinationManager;
import com.sap.conn.jco.JCoException;
import com.sap.conn.jco.JCoFunction;
public class Programm {
    public static void main(String[] args) throws JCoException {
        JCoDestination destination = JCoDestinationManager.getDestination("ABAP_AS");
        JCoFunction function = destination.getRepository().getFunction("Z_GET_SCAR");
        function.getImportParameterList().setValue("I_CARRID","AC");
        try {
            function.execute(destination);
            System.out.println(function.getExportParameterList().getString("E_CARRNAME"));
        } catch (JCoException ex){
            if(ex.getKey().equals("CARR_NOT_FOUND")){
                System.out.println("Airline company not found with given id");
            }
        }
    }
}

4.系统输出

Air Canada