Java批量生产条形码，并自定义打印机打印这些条形码

可以使用Java的开源库ZXing来批量生成条形码，并使用Java打印API来自定义打印机打印这些条形码。

下面是一个简单的示例代码：

import java.awt.Graphics2D;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import javax.imageio.ImageIO;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.oned.Code128Writer;
import com.google.zxing.qrcode.QRCodeWriter;

public class BarcodeGenerator {

    private static final int WIDTH = 300;
    private static final int HEIGHT = 100;
    private static final String FORMAT = "png";

    public static void main(String[] args) throws IOException, WriterException {
        String[] barcodes = {"1234567890", "0987654321", "5555555555"};

        for (String barcode : barcodes) {
            BufferedImage image = generateBarcode(barcode);
            printBarcode(image);
        }
    }

    private static BufferedImage generateBarcode(String barcodeText) throws WriterException {
        Code128Writer writer = new Code128Writer();
        BitMatrix bitMatrix = writer.encode(barcodeText, BarcodeFormat.CODE_128, WIDTH, HEIGHT);
        return MatrixToImageWriter.toBufferedImage(bitMatrix);
    }

    private static void printBarcode(BufferedImage image) throws IOException {
        // Replace with your own printer name
        String printerName = "MyPrinterName";

        // Create a PrinterJob
        PrinterJob printerJob = PrinterJob.getPrinterJob();
        printerJob.setPrintService(findPrintService(printerName));

        // Set the page format
        PageFormat pageFormat = printerJob.defaultPage();
        Paper paper = pageFormat.getPaper();
        paper.setImageableArea(0, 0, paper.getWidth(), paper.getHeight());
        pageFormat.setPaper(paper);
        printerJob.setPrintable((graphics, pageFormat, pageIndex) -> {
            if (pageIndex == 0) {
                Graphics2D g2d = (Graphics2D) graphics;
                g2d.drawImage(image, 0, 0, null);
                return Printable.PAGE_EXISTS;
            } else {
                return Printable.NO_SUCH_PAGE;
            }
        }, pageFormat);

        // Print the image
        printerJob.print();
    }

    private static PrintService findPrintService(String printerName) {
        PrintService[] printServices = PrinterJob.lookupPrintServices();
        for (PrintService printService : printServices) {
            if (printService.getName().equals(printerName)) {
                return printService;
            }
        }
        return null;
    }
}

在此例中，我们使用Code128Writer生成Code 128条形码，将其转换为BufferedImage格式，然后使用Java打印API打印条形码。请注意，您需要将示例代码中的打印机名称更改为您自己的打印机名称，以便正确打印条形码。