Question

我正在尝试将条形码打印成pdf，但是当我输入writer..getDirectContent（）;它显示错误。

我导入了以下内容

import com.itextpdf.text.Document;
import com.itextpdf.text.DocumentException; 
import com.itextpdf.text.Paragraph; 
import com.itextpdf.text.pdf.BaseFont;
import com.itextpdf.text.BaseColor;
import com.itextpdf.text.pdf.BarcodeEAN;
import com.itextpdf.text.pdf.PdfContentByte;
import com.itextpdf.text.pdf.PdfWriter;
import com.itextpdf.text.Rectangle;

结果集中的

我的代码我要在pdf中打印条形码

try{
    String sel_peince=jTextField33.getText();
    String des=jTextField29.getText();
    if((sel_peince.compareTo("")!=0)  && (des.compareTo("")!=0)){
    String sql="Select * from printing_press_inventory where unit_selling_price='"+sel_peince+"' and description ='"+des+"'";
                    pst=con.prepareStatement(sql);
                    rs = pst.executeQuery(sql);

                    rs.next();
                    String oitm=""+rs.getInt("item_id");
                    String Oqt=""+rs.getInt("quantity");
                    String description=rs.getString("description");


        Document doc=new Document();
        PdfWriter.getInstance(doc, new FileOutputStream("Barcode.pdf"));
        doc.open();
        doc.add(new Paragraph(new Chunk("Barcode for "+description+"")));

      PdfContentByte cb = writer.getDirectContent();
       BarcodeEAN codeEAN=new BarcodeEAN();
       codeEAN.setCode(oitm);
       Paragraph p=new Paragraph();
       codeEAN.setCodeType(BarcodeEAN.UPCA);
       doc.add(codeEAN.createImageWithBarcode(null, BaseColor.BLACK, BaseColor.BLACK));
       doc.add(p);
         doc.close();
}
    else{
         JOptionPane.showMessageDialog(null, "eerrrrr");  
    }
}
catch(Exception e){
    System.out.println(e);
}

谢谢！：D

java中的itext，不能使用PdfContentByte cb = writer.getDirectContent（）;

0 个答案: