Question

我使用zxing核心1.7，zxing j2se 1.7和网络摄像头捕获0.3.11库

IDE可能是netbeans 7.2和数据库的myqsl

问题是线程....我似乎无法打破标识符并将其跳转到另一种方法......我认为我做错了... 有任何想法吗？ T_T

 public void run() {
     do {
         try {
             Thread.sleep(300);
         } catch (InterruptedException e) {}
         Result result = null;
         BufferedImage image = null;
         if (webcam.isOpen()) {
             if ((image = webcam.getImage()) == null) {
                 continue;
             }
             LuminanceSource source = new BufferedImageLuminanceSource(image);
             BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));
             try {
                 result = new MultiFormatReader().decode(bitmap);
             } catch (NotFoundException e) {
             }
         }
         int a;
         a = (result.getText().length()); //thread error
         if (result != null) {
             txtID.setText(result.getText());
             try {
                 QRLOAD();
             } catch (Exception e) {} //method to load jtable        
             try {
                 Update_PIC();
             } catch (Exception e) {} //method to load picture jlabel
             try {
                 Time_inUP();
             } //method to to update the time
             catch (Exception e) {}
             if (a > 1) {
                 OperatorQR(); //method to close the thread and call the main panel
             } else {
             }
         }
     } while (true);
 }

Answer 1

我自己想出了答案......他将结果设置为int并获取长度将无效... 你只会在if参数中指出它... T_T

public void run() {

    do {

    try {


            Thread.sleep(300);
        } catch (InterruptedException e) {
        }

        Result result = null;
        BufferedImage image = null;

        if (webcam.isOpen()) {

            if ((image = webcam.getImage()) == null) {
                continue;
            }

            LuminanceSource source = new BufferedImageLuminanceSource(image);
            BinaryBitmap bitmap = new BinaryBitmap(new HybridBinarizer(source));

            try {

                 result = new MultiFormatReader().decode(bitmap);



            } catch (NotFoundException e) {



            }

        }


        if ( result != null  ) {


                                txtID.setText(result.getText());




                                         try{QRLOAD();}    //method to load jtable
                                      catch(Exception e){ }                 

                                try{Update_PIC();}          //method to load picture jlabel
                                   catch(Exception e){ }


                              try{Time_inUP();}        //method to to update the time
                          catch(Exception e){ }       

                         try{Update_PIC();}
                            catch(Exception e){ }          

                                try{QRLOAD();}
                           catch(Exception e){ }




                              if (result.getText().length()>1 ) {// This is the solution 


                                OperatorQR();  //method to close the thread,webcam and call the main panel

    } 

                    }


    }while (true);



}

QR扫描仪时间

1 个答案: