This guide will show you how to generate Barcode & QR code with the invisible the textual data using Spire.Barcode for Java.
Installing Spire.barcode jar
If you create a Maven project, you can easily import the jar in your application using the following configurations. For non-Maven projects, download the Barcode jar file and add it as a dependency in your application.
<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</artifactId>
<version>4.1.2</version>
</dependency>
</dependencies>
Generate a 1D barcode without the Text Data When Creating a Barcode
import com.spire.barcode.BarCodeGenerator;
import com.spire.barcode.BarCodeType;
import com.spire.barcode.BarcodeSettings;
import javax.imageio.ImageIO;
import java.awt.*;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class CreateBarcode {
public static void main(String[] args) throws IOException {
//Instantiate BarcodeSettings object
BarcodeSettings settings = new BarcodeSettings();
//Set the Barcode type
settings.setType(BarCodeType.Codabar);
//Set the Barcode data
settings.setData("123456789");
//Make the textual data invisible
settings.setShowText(false);
//Make the textual data visible at the Barcode
settings.setShowTextOnBottom(true);
//Set width for the black and white stripes
settings.setX(0.8f);
//Set height for the created Barcode image
settings.setImageHeight(50);
//Set width for the created Barcode image
settings.setImageWidth(70);
//Make the border visible
settings.hasBorder(true);
//Set the border color
settings.setBorderColor(new Color(135,206,250));
settings.setBorderWidth(1);
settings.setBackColor(new Color(240,255,255));
//Instantiage BarCodeGenerator object
BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);
//Generate image data based on settings and save it to BufferedImage instance
BufferedImage bufferedImage = barCodeGenerator.generateImage();
//Save the Barcode as PNG
ImageIO.write(bufferedImage, "png", new File("Codabar.png"));
}
}
Output:
Generate a QR code without the Text Data When Creating a Barcode
import com.spire.barcode.*;
import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
public class CreateQR {
public static void main(String[] args) throws IOException {
//Instantiate BarcodeSettings object
BarcodeSettings settings = new BarcodeSettings();
//Set Barcode type as QR code
settings.setType(BarCodeType.QR_Code);
//Set the data
settings.setData("Hello 123456789");
// Make the textual data invisible
settings.setShowText(false);
settings.setQRCodeDataMode(QRCodeDataMode.Alpha_Number);
settings.setImageWidth(50);
settings.setImageHeight(50);
settings.setX(3.0f);
settings.setQRCodeECL(QRCodeECL.H);
//make the border invisible
settings.hasBorder(false);
//Instantiage BarCodeGenerator object
BarCodeGenerator barCodeGenerator = new BarCodeGenerator(settings);
//Generate image data based on settings and save it to BufferedImage instance
BufferedImage bufferedImage = barCodeGenerator.generateImage();
//Save the QR code as PNG
ImageIO.write(bufferedImage, "png", new File("QRCode.png"));
}
}
Output:
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