使用Java Spring Boot生成二维码与条形码

import com.google.zxing.BarcodeFormat;
import com.google.zxing.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.QRCodeWriter;
import com.google.zxing.oned.Code128Writer;
 
import java.io.IOException;
import java.nio.file.FileSystems;
import java.nio.file.Path;
 
public class BarcodeGenerator {
 
    public static void main(String[] args) {
        String qrText = "https://www.example.com";
        String barcodeText = "123456789012";
 
        try {
            generateQRCodeImage(qrText, "qrcode.png");
            generateBarcodeImage(barcodeText, "barcode.png");
        } catch (WriterException | IOException e) {
            e.printStackTrace();
        }
    }
 
    private static void generateQRCodeImage(String text, String imagePath) throws WriterException, IOException {
        QRCodeWriter qrCodeWriter = new QRCodeWriter();
        BitMatrix bitMatrix = qrCodeWriter.encode(text, BarcodeFormat.QR_CODE, 500, 500);
        Path path = FileSystems.getDefault().getPath(imagePath);
        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
    }
 
    private static void generateBarcodeImage(String text, String imagePath) throws IOException {
        Code128Writer code128Writer = new Code128Writer();
        BitMatrix bitMatrix = code128Writer.encode(text, BarcodeFormat.CODE_128, 500, 100);
        Path path = FileSystems.getDefault().getPath(imagePath);
        MatrixToImageWriter.writeToPath(bitMatrix, "PNG", path);
    }
}

这段代码使用了google zxing库来生成二维码和条形码。首先，我们创建了一个BarcodeGenerator类和一个main方法。在main方法中，我们定义了要编码的字符串，并调用相应的方法生成二维码和条形码图像。generateQRCodeImage方法使用QRCodeWriter来生成二维码，而generateBarcodeImage方法使用Code128Writer来生成128编码的条形码。每个方法都捕获了异常，并在必要时打印堆栈跟踪。