GenerateQRCode.java

package sharefiles;

import java.io.File;
import java.io.IOException;
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.WriterException;
import com.google.zxing.client.j2se.MatrixToImageWriter;
import com.google.zxing.common.BitMatrix;
import com.google.zxing.qrcode.decoder.ErrorCorrectionLevel;
import javax.swing.filechooser.FileSystemView;

public class GenerateQRCode {

    String str, path;
    int height, width;
    String charset = "UTF-8";

    public GenerateQRCode(String text, int height, int width) {
        this.str = text;
        this.path = FileSystemView.getFileSystemView().getHomeDirectory() + "/Quote.png";
        this.height = height;
        this.width = width;
    }

    public boolean generateQRcode() throws WriterException, IOException {
        Map<EncodeHintType, ErrorCorrectionLevel> hashMap = new HashMap<>();
        hashMap.put(EncodeHintType.ERROR_CORRECTION, ErrorCorrectionLevel.L);
        BitMatrix matrix = new MultiFormatWriter().encode(new String(str.getBytes(charset), charset), BarcodeFormat.QR_CODE, width, height);
        MatrixToImageWriter.writeToFile(matrix, path.substring(path.lastIndexOf('.') + 1), new File(path));
        return matrix != null;
    }

    public String getStr() {
        return str;
    }

    public void setStr(String str) {
        this.str = str;
    }

    public String getPath() {
        return path;
    }

    public void setPath(String path) {
        this.path = path;
    }

    public int getHeight() {
        return height;
    }

    public void setHeight(int height) {
        this.height = height;
    }

    public int getWidth() {
        return width;
    }

    public void setWidth(int width) {
        this.width = width;
    }

}