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javatextqr-code

How to generate QR code with some text using JAVA?

I want to generate QR code with some text using JAVA like this. please check this image. This is how I want to generate my QR code. (with user name and event name text)

This is my code and this generate only (QR) code, (not any additional text). If anyone know how to generate QR code with text please help me.

import java.io.File;
import java.util.HashMap;
import java.util.Map;
import com.google.zxing.BarcodeFormat;
import com.google.zxing.EncodeHintType;
import com.google.zxing.MultiFormatWriter;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
public class Create_QR {
    public static void main(String[] args) {
        try {
            String qrCodeData = "This is the text";
            String filePath = "C:\\Users\\Nirmalw\\Desktop\\Projects\\QR\\test\\test_img\\my_QR.png";
            String charset = "UTF-8"; // or "ISO-8859-1"

            Map < EncodeHintType, ErrorCorrectionLevel > hintMap = new HashMap < EncodeHintType, ErrorCorrectionLevel > ();

            hintMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);

            BitMatrix matrix = new MultiFormatWriter().encode(new String(qrCodeData.getBytes(charset), charset),
                    BarcodeFormat.QR_CODE, 500, 500, hintMap);

            MatrixToImageWriter.writeToFile (matrix, filePath.substring(filePath.lastIndexOf('.') + 1), new File(filePath));

            System.out.println("QR Code created successfully!");
        } catch (Exception e) {
            System.err.println(e);
        }
    }
}
Solution

  • You can generate a QR code with text in Java using Free Spire.Barcode for Java API. First, download the API's jar from this link or install it from Maven Repository:

        <repositories>
    <repository>
        <id>com.e-iceblue</id>
        <name>e-iceblue</name>
        <url>https://repo.e-iceblue.com/nexus/content/groups/public/</url>
    </repository>
</repositories>
<dependencies>
    <dependency>
        <groupId>e-iceblue</groupId>
        <artifactId>spire.barcode.free</artifactId>
        <version>5.1.1</version>
    </dependency>
</dependencies>

    Next, refer to the following code sample:

    import com.spire.barcode.BarCodeGenerator;
import com.spire.barcode.BarCodeType;
import com.spire.barcode.BarcodeSettings;
import com.spire.barcode.QRCodeECL;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class GenerateQRCode {
    public static void main(String []args) throws IOException {
        //Instantiate a BarcodeSettings object
        BarcodeSettings settings = new BarcodeSettings();
        //Set barcode type
        settings.setType(BarCodeType.QR_Code);
        //Set barcode data
        String data = "https://stackoverflow.com/";
        settings.setData(data);
        //Set barcode module width
        settings.setX(2);
        //Set error correction level
        settings.setQRCodeECL(QRCodeECL.M);

        //Set top text
        settings.setTopText("User Name");
        //Set bottom text
        settings.setBottomText("Event Name");

        //Set text visibility
        settings.setShowText(false);
        settings.setShowTopText(true);
        settings.setShowBottomText(true);

        //Set border visibility
        settings.hasBorder(false);

        //Instantiate a BarCodeGenerator object based on the specific settings
        BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);
        //Generate QR code image
        BufferedImage bufferedImage = barCodeGenerator.generateImage();
        //save the image to a .png file
        ImageIO.write(bufferedImage,"png",new File("QR_Code.png"));
    }
}

    The following is the generated QR code image with text:

    Generate QR Code with Text in Java