How to generate QR image using java and spring boot
To generate a QR code image using Java and Spring Boot, you can use the zxing library which is an open-source, multi-format 1D/2D barcode image processing library implemented in Java. Here are the steps to generate a QR code image using Java and Spring Boot: 1. Add the zxing library to your Spring Boot project by adding the following dependency to your pom.xml file: <dependency> <groupId>com.google.zxing</groupId> <artifactId>core</artifactId> <version>3.4.1</version> </dependency> 2. Create a QRCodeGenerator class that will generate the QR code image. Here's an example of a QRCodeGenerator class: import com.google.zxing.BarcodeFormat; import com.google.zxing.EncodeHintType; import com.google.zxing.WriterException; import com.google.zxing.common.BitMatrix; import com.google.zxing.qrcode.QRCodeWriter; import org.springframework.stereotype.Component; import javax.imageio.ImageIO; import java.aw