java call sap

1、下载需要的jar,windows用dll,linux用so

　　win下载地址     linux下载地址 win下载地址new

2、环境：

　　windows -> sapjco3.dll放到windows目录下

　　linux -> libsapjco3.so 放到lib目录下(没权限就建个环境变量让后放进去)

3、代码：

 package cn.com.sony.newsis.common.tools;

 import java.io.File;
 import java.io.FileOutputStream;
 import java.text.SimpleDateFormat;
 import java.util.Date;
 import java.util.List;
 import java.util.Properties;
 import java.util.concurrent.ConcurrentHashMap;

 import cn.com.sony.npc.util.Props.PropsUtil;

 import com.sap.conn.jco.AbapException;
 import com.sap.conn.jco.JCo;
 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.JCoParameterList;
 import com.sap.conn.jco.ext.DestinationDataProvider;

 public class AUJcoClient
 {
     static String ABAP_AS_POOLED = "AU_AS_WITH_POOL";
     static String[] jcoPara=Operate.getAUJcoPara();
     static int timeOut=Integer.parseInt(jcoPara[8]);
     public static int FUNCTIONCOUNT=0;
     public static long FOLLOWCOUNT=0;
     public static int PEAK_LIMIT=Integer.parseInt(jcoPara[7]);

     public static ConcurrentHashMap<Long,Long> hm=new ConcurrentHashMap<Long,Long>();

     /**
      * initial JCO connection
      */
     static{
         for(int i=0;i<jcoPara.length;i++){
             System.out.print(jcoPara[i]+",");
         }
         Properties connectProperties = new Properties();
         connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, jcoPara[0]);
         connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR,  jcoPara[1]);
         connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, jcoPara[2]);
         connectProperties.setProperty(DestinationDataProvider.JCO_USER,   jcoPara[3]);
         connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, jcoPara[4]);
         connectProperties.setProperty(DestinationDataProvider.JCO_LANG,   jcoPara[5]);
         connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, jcoPara[6]);
         connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, jcoPara[7]);

         createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties);

    }

     static void createDataFile(String name, String suffix, Properties properties){
         File cfg = new File(name+"."+suffix);
         if(!cfg.exists()){
             FileOutputStream fos = null;
             try{
                 fos = new FileOutputStream(cfg, false);
                 properties.store(fos, "for tests only !");
             }catch (Exception e){
                 //Point 4 –  handle this exception
                 throw new RuntimeException("Unable to create the destination file " + cfg.getName(), e);
             }finally{
                 try{
                     if(fos!=null) fos.close();
                 }catch(Exception e){
                     e.printStackTrace();
                 }
             }
         }
     }

     /**
      * access JCO Interface 'Z_CREDIT_EXPOSURE'
      * @param customerAccountNumber
      * @param companyCode
      * @param creditControlArea
      * @param dateCreditExposure
      * @return
      * @throws JCoException
      */
     public static String[] functionCallcreditExposure(String customerAccountNumber,String companyCode,String creditControlArea,String dateCreditExposure) throws Exception{
         String[] res = new String[3];
         String  creditLimit = null;
         String  Receivable = null;
         String  creditExposure = null;
         try{
         JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
         JCoFunction function = destination.getRepository().getFunction("Z_CREDIT_EXPOSURE");
         JCoParameterList inParm  = function.getImportParameterList();
             inParm.setValue("KUNNR", "4002485");
             inParm.setValue("BUKRS",  "AU40");
             inParm.setValue("KKBER","AU40");
             inParm.setValue("DATE_CREDIT_EXPOSURE","99991231");
             FUNCTIONCOUNT++;
             function.execute(destination);
             FOLLOWCOUNT++;
             if(FOLLOWCOUNT>100000) FOLLOWCOUNT=0;
             hm.put(new Long(FOLLOWCOUNT), new Date().getTime()/1000);
             creditExposure = function.getExportParameterList().getString("SUM_OPENS").toString();
             Receivable = function.getExportParameterList().getString("OPEN_ITEMS").toString();
             creditLimit = function.getExportParameterList().getString("CREDITLIMIT").toString();
             res[0] = creditExposure;
             res[1] = Receivable;
             res[2] = creditLimit;
         }catch (JCoException e) {
             throw e;
         }finally{
             FUNCTIONCOUNT--;
         }
         return res;
     }

     /**
      * access JCO Interface 'Y_RFC_AP_ACC_GETKEYDATEBALANC'
      * @param  material String
      * @param  req_qty String
      * @param  customer String
      * @return String part status
      */
     public static String functionCallGetBalance(String vendorAccountNumber,String companyCode,String dateCreditExposure) throws Exception{
         String  vendorBalance = null;
         try{
         JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
         JCoFunction function = destination.getRepository().getFunction("Y_RFC_AP_ACC_GETKEYDATEBALANC");
         JCoParameterList inParm    = function.getImportParameterList();
             inParm.setValue("VENDOR", vendorAccountNumber);
             inParm.setValue("COMPANYCODE",  companyCode);
             inParm.setValue("KEYDATE",dateCreditExposure);
             FUNCTIONCOUNT++;
             function.execute(destination);
             FOLLOWCOUNT++;
             if(FOLLOWCOUNT>100000) FOLLOWCOUNT=0;
             hm.put(new Long(FOLLOWCOUNT), new Date().getTime()/1000);
             vendorBalance = function.getExportParameterList().getString("LC_BAL").toString();
         } catch(AbapException e) {
             System.out.println(e.toString());
         }finally{
             FUNCTIONCOUNT--;
         }
         return vendorBalance;
     }

     /**
      * Control Maximum concurrency
      * @param  material String
      * @param  req_qty String
      * @param  customer String
      *@return part status
      */
     public static Object functionControlGetBalance(String VendoraccountNumber,String CompanyCode,String DateCreditExposure) throws Exception {

         String status=null;
         Object partStat=null;
         Date d1=null;
         Date d2=null;
                 String path= PropsUtil.get("JCO_ROOT");
         try{
             /*
              * WAS的自动重启机制会产生"Library is already loaded in another ClassLoader"的bug，必须黑屏重启jvm
              * Java虚拟机为了在JNI本地库中确保基于classloader的命名空间隔离，因而不允许一个JNI本地库被两个不同的classloader加载。
              * 只要将JNI class单独发布成jar包，并放在配置公共(default、all或share)的lib目录中，问题就可以解决
              */
             JCo.setTrace(0, path);
         }catch (Exception e) {
             System.err.println("Jco loader error:"+e);
         }

         LayOut lo=new LayOut(path+"/AUJcoPrint.log");

         SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
         SimpleDateFormat sdf2=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
         StringBuffer sb=new StringBuffer("");

         try{
             sb.append(sdf2.format(new Date())).append("\t").append("VendoraccountNumber:")
             .append(VendoraccountNumber).append("\t").append("CompanyCode:").append(CompanyCode)
             .append("\t").append("DateCreditExposure:").append(DateCreditExposure).append("\r\n");
                 int i=0;
                 //最大并发量PEAK_LIMIT，超时timeOut秒
                 while(FUNCTIONCOUNT>PEAK_LIMIT && i<timeOut){
                     Thread.sleep(1000);
                     i++;
                 }
                 if(FUNCTIONCOUNT<PEAK_LIMIT){
                     d1=new Date();
                     //访问JCO接口
                     partStat=functionCallGetBalance(VendoraccountNumber,CompanyCode,DateCreditExposure);
                     if(partStat==null){
                         partStat="sku not exist";
                     }
                     d2=new Date();
                     status="OK";
                 }else{
                     status="reached the maximum number of JCO_PEAK_LIMIT";
                     partStat="timeout";
                     System.err.println(FUNCTIONCOUNT+"    "+new Date().toLocaleString());
                 }
 //            }
         }catch(Exception e){
             //连接失败异常
             status=e.getMessage();
             e.printStackTrace();
         }finally{
             StringBuffer sb2=new StringBuffer("");
             long responseTime=-1;
             if(d1!=null&&d2!=null) responseTime=d2.getTime()-d1.getTime();
             sb2.append(sdf2.format(new Date())).append("\t").append("ExecID:")
             .append(FOLLOWCOUNT).append("\t").append("InvocationTime:")
             .append(d1==null?"null":sdf.format(d1)).append("\t").append("ResponseReceivedTime:")
             .append(d2==null?"null":sdf.format(d2)).append("\t")
             .append("TotalTimeTaken:").append(responseTime).append("\t")
             .append("Status:").append(status);
             lo.writeFile(sb.append(sb2).toString());
         }
         return partStat;
     }

 /*    public static void main(String[] args){
         try{
             System.out.println("=======AUbegin=============");
             String xx = functionCallGetBalance("A1053905A","1","1000053");
             String[] res = functionCallcreditExposure("632","AU40","AU40","99991231");
             System.out.println("======end==============:");
         }catch(Exception e){
             e.printStackTrace();
         }
     }*/
 }