在条形码扫描仪扫描时用java打印条码

Question

只要条形码扫描在任何条形码的顶部，我想读取条形码并在简单的java程序中将其打印在控制台中。有什么办法吗？

Answer 1

final Scanner scanner; 

    try 
    { 
     scanner = new Scanner(); 

     try { 
      scanner.release(); 
      scanner.close(); 
     } catch (Exception e) { 

     } 

     scanner.open("MotorolaScannerUSB"); 

     scanner.claim(100); 
     scanner.setDeviceEnabled(true); 
     scanner.setDataEventEnabled(true); 

     scanner.addDataListener(new DataListener() 
     { 
      public void dataOccurred(DataEvent arg0) { 
       Scanner scn = (Scanner) arg0.getSource(); 

       if (scn.equals(scanner)) {      
        try { 
         scanner.claim(100); 
         System.out.println(new String(scanner.getScanData())); 
         scanner.claim(100); 
         scanner.setDeviceEnabled(true); 
         scanner.setDataEventEnabled(true); 
        } catch (JposException e) { 
         e.printStackTrace(); 
        } 
       } 
      } 
     }); 
    } 
    catch (Exception e) { 
     System.err.println("error"); 
    }