java中条形码怎么自动生成

java import com.google.zxing.BarcodeFormat; import com.google.zxing.MultiFormatWriter; import com.google.zxing.common.BitMatrix; import com.google.zxing.oned.Code128Writer; import com.google.zxing.client.j2se.MatrixToImageWriter; public class BarcodeGenerator { public static void generateBarcode(String data, String filePath, int width, int height) { try { BitMatrix bitMatrix = new MultiFormatWriter().encode(data, BarcodeFormat.CODE_128, width, height); MatrixToImageWriter.writeToPath(bitMatrix, "PNG", new File(filePath).toPath()); } catch (Exception e) { e.printStackTrace(); } } public static void main(String[] args) { generateBarcode("123456789", "barcode.png", 200, 50); } }