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：

  1 package cn.com.sony.newsis.common.tools;
  2 
  3 import java.io.File;
  4 import java.io.FileOutputStream;
  5 import java.text.SimpleDateFormat;
  6 import java.util.Date;
  7 import java.util.List;
  8 import java.util.Properties;
  9 import java.util.concurrent.ConcurrentHashMap;
 10 
 11 import cn.com.sony.npc.util.Props.PropsUtil;
 12 
 13 import com.sap.conn.jco.AbapException;
 14 import com.sap.conn.jco.JCo;
 15 import com.sap.conn.jco.JCoDestination;
 16 import com.sap.conn.jco.JCoDestinationManager;
 17 import com.sap.conn.jco.JCoException;
 18 import com.sap.conn.jco.JCoFunction;
 19 import com.sap.conn.jco.JCoParameterList;
 20 import com.sap.conn.jco.ext.DestinationDataProvider;
 21 
 22 
 23 public class AUJcoClient
 24 {
 25     static String ABAP_AS_POOLED = "AU_AS_WITH_POOL";
 26     static String[] jcoPara=Operate.getAUJcoPara();
 27     static int timeOut=Integer.parseInt(jcoPara[8]);
 28     public static int FUNCTIONCOUNT=0;
 29     public static long FOLLOWCOUNT=0;
 30     public static int PEAK_LIMIT=Integer.parseInt(jcoPara[7]);
 31     
 32     public static ConcurrentHashMap<Long,Long> hm=new ConcurrentHashMap<Long,Long>();
 33     
 34 
 35     /**
 36      * initial JCO connection
 37      */
 38     static{
 39         for(int i=0;i<jcoPara.length;i++){
 40             System.out.print(jcoPara[i]+",");
 41         }
 42         Properties connectProperties = new Properties();
 43         connectProperties.setProperty(DestinationDataProvider.JCO_ASHOST, jcoPara[0]);
 44         connectProperties.setProperty(DestinationDataProvider.JCO_SYSNR,  jcoPara[1]);
 45         connectProperties.setProperty(DestinationDataProvider.JCO_CLIENT, jcoPara[2]);
 46         connectProperties.setProperty(DestinationDataProvider.JCO_USER,   jcoPara[3]);
 47         connectProperties.setProperty(DestinationDataProvider.JCO_PASSWD, jcoPara[4]);
 48         connectProperties.setProperty(DestinationDataProvider.JCO_LANG,   jcoPara[5]);
 49         connectProperties.setProperty(DestinationDataProvider.JCO_POOL_CAPACITY, jcoPara[6]);
 50         connectProperties.setProperty(DestinationDataProvider.JCO_PEAK_LIMIT, jcoPara[7]);
 51         
 52         createDataFile(ABAP_AS_POOLED, "jcoDestination", connectProperties);
 53         
 54    }
 55     
 56     static void createDataFile(String name, String suffix, Properties properties){
 57         File cfg = new File(name+"."+suffix);
 58         if(!cfg.exists()){
 59             FileOutputStream fos = null;
 60             try{
 61                 fos = new FileOutputStream(cfg, false);
 62                 properties.store(fos, "for tests only !");
 63             }catch (Exception e){
 64                 //Point 4 –  handle this exception
 65                 throw new RuntimeException("Unable to create the destination file " + cfg.getName(), e);
 66             }finally{
 67                 try{
 68                     if(fos!=null) fos.close(); 
 69                 }catch(Exception e){
 70                     e.printStackTrace();
 71                 }
 72             }
 73         }
 74     }
 75     
 76     /**
 77      * access JCO Interface 'Z_CREDIT_EXPOSURE'
 78      * @param customerAccountNumber
 79      * @param companyCode
 80      * @param creditControlArea
 81      * @param dateCreditExposure
 82      * @return
 83      * @throws JCoException 
 84      */
 85     public static String[] functionCallcreditExposure(String customerAccountNumber,String companyCode,String creditControlArea,String dateCreditExposure) throws Exception{
 86         String[] res = new String[3];
 87         String  creditLimit = null;
 88         String  Receivable = null;
 89         String  creditExposure = null;
 90         try{
 91         JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
 92         JCoFunction function = destination.getRepository().getFunction("Z_CREDIT_EXPOSURE");
 93         JCoParameterList inParm  = function.getImportParameterList();
 94             inParm.setValue("KUNNR", "4002485");
 95             inParm.setValue("BUKRS",  "AU40");
 96             inParm.setValue("KKBER","AU40");
 97             inParm.setValue("DATE_CREDIT_EXPOSURE","99991231");
 98             FUNCTIONCOUNT++;
 99             function.execute(destination);
100             FOLLOWCOUNT++;
101             if(FOLLOWCOUNT>100000) FOLLOWCOUNT=0; 
102             hm.put(new Long(FOLLOWCOUNT), new Date().getTime()/1000);
103             creditExposure = function.getExportParameterList().getString("SUM_OPENS").toString();
104             Receivable = function.getExportParameterList().getString("OPEN_ITEMS").toString();
105             creditLimit = function.getExportParameterList().getString("CREDITLIMIT").toString();
106             res[0] = creditExposure;
107             res[1] = Receivable;
108             res[2] = creditLimit;
109         }catch (JCoException e) {
110             throw e;
111         }finally{
112             FUNCTIONCOUNT--;
113         }
114         return res;
115     }
116 
117     /**
118      * access JCO Interface 'Y_RFC_AP_ACC_GETKEYDATEBALANC'
119      * @param  material String
120      * @param  req_qty String
121      * @param  customer String
122      * @return String part status
123      */
124     public static String functionCallGetBalance(String vendorAccountNumber,String companyCode,String dateCreditExposure) throws Exception{
125         String  vendorBalance = null;
126         try{
127         JCoDestination destination = JCoDestinationManager.getDestination(ABAP_AS_POOLED);
128         JCoFunction function = destination.getRepository().getFunction("Y_RFC_AP_ACC_GETKEYDATEBALANC");
129         JCoParameterList inParm    = function.getImportParameterList();
130             inParm.setValue("VENDOR", vendorAccountNumber);
131             inParm.setValue("COMPANYCODE",  companyCode);
132             inParm.setValue("KEYDATE",dateCreditExposure);
133             FUNCTIONCOUNT++;
134             function.execute(destination);
135             FOLLOWCOUNT++;
136             if(FOLLOWCOUNT>100000) FOLLOWCOUNT=0; 
137             hm.put(new Long(FOLLOWCOUNT), new Date().getTime()/1000);
138             vendorBalance = function.getExportParameterList().getString("LC_BAL").toString();
139         } catch(AbapException e) {
140             System.out.println(e.toString());
141         }finally{
142             FUNCTIONCOUNT--;
143         }
144         return vendorBalance;
145     }
146     
147     /**
148      * Control Maximum concurrency
149      * @param  material String
150      * @param  req_qty String
151      * @param  customer String
152      *@return part status
153      */
154     public static Object functionControlGetBalance(String VendoraccountNumber,String CompanyCode,String DateCreditExposure) throws Exception {
155         
156         String status=null;
157         Object partStat=null;
158         Date d1=null;
159         Date d2=null;
160                 String path= PropsUtil.get("JCO_ROOT");
161         try{
162             /*
163              * 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
164              * 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。
165              * 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
166              */
167             JCo.setTrace(0, path);
168         }catch (Exception e) {
169             System.err.println("Jco loader error:"+e);
170         }
171         
172         LayOut lo=new LayOut(path+"/AUJcoPrint.log");
173 
174         SimpleDateFormat sdf=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
175         SimpleDateFormat sdf2=new SimpleDateFormat("yyyy-MM-dd HH:mm:ss:SSS");
176         StringBuffer sb=new StringBuffer("");
177         
178         try{
179             sb.append(sdf2.format(new Date())).append("	").append("VendoraccountNumber:")
180             .append(VendoraccountNumber).append("	").append("CompanyCode:").append(CompanyCode)
181             .append("	").append("DateCreditExposure:").append(DateCreditExposure).append("
");
182                 int i=0;
183                 //最大并发量PEAK_LIMIT，超时timeOut秒
184                 while(FUNCTIONCOUNT>PEAK_LIMIT && i<timeOut){
185                     Thread.sleep(1000);
186                     i++;
187                 }
188                 if(FUNCTIONCOUNT<PEAK_LIMIT){
189                     d1=new Date();
190                     //访问JCO接口
191                     partStat=functionCallGetBalance(VendoraccountNumber,CompanyCode,DateCreditExposure);
192                     if(partStat==null){
193                         partStat="sku not exist";
194                     }
195                     d2=new Date();
196                     status="OK";
197                 }else{
198                     status="reached the maximum number of JCO_PEAK_LIMIT";
199                     partStat="timeout";
200                     System.err.println(FUNCTIONCOUNT+"    "+new Date().toLocaleString());
201                 }
202 //            }
203         }catch(Exception e){
204             //连接失败异常
205             status=e.getMessage();
206             e.printStackTrace();
207         }finally{
208             StringBuffer sb2=new StringBuffer("");
209             long responseTime=-1;
210             if(d1!=null&&d2!=null) responseTime=d2.getTime()-d1.getTime();
211             sb2.append(sdf2.format(new Date())).append("	").append("ExecID:")
212             .append(FOLLOWCOUNT).append("	").append("InvocationTime:")
213             .append(d1==null?"null":sdf.format(d1)).append("	").append("ResponseReceivedTime:")
214             .append(d2==null?"null":sdf.format(d2)).append("	")
215             .append("TotalTimeTaken:").append(responseTime).append("	")
216             .append("Status:").append(status);
217             lo.writeFile(sb.append(sb2).toString());
218         }
219         return partStat;
220     }
221     
222 /*    public static void main(String[] args){
223         try{
224             System.out.println("=======AUbegin=============");
225             String xx = functionCallGetBalance("A1053905A","1","1000053");
226             String[] res = functionCallcreditExposure("632","AU40","AU40","99991231");
227             System.out.println("======end==============:");
228         }catch(Exception e){
229             e.printStackTrace();
230         }
231     }*/
232 }
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原文地址：https://www.cnblogs.com/sprinng/p/4245112.html