Free java api to generate qr codes in your java or android application

Posted By : Deepak Agrawal | 19-Dec-2014

You can get FREE JAVA API to generate QR Codes For your java/android application from zxing under License

Steps to integrate Zxing in grails application add below lines in buildConfig.groovy file under conf directory:

1. add respository mavenRepo 'https://oss.sonatype.org/content/repositories/snapshots'

2. add dependency compile ("net.glxn.qrgen:javase:2.0")

3. Now generate QRCodes for free

import java.io.File;
import net.glxn.qrgen.core.image.ImageType;
import net.glxn.qrgen.javase.QRCode;
import org.apache.commons.codec.binary.Base64;
import org.apache.commons.io.FileUtils;
....
....

File file=QRCode.from("Hello World").to(ImageType.PNG).file();

//here we have convert generated image file into a base64 code to store in database.
String imageCode=Base64.encodeBase64String(FileUtils.readFileToByteArray(file));
		
System.out.println(imageCode);

For more usage visit on kenglxn

Thanks