Generate barcode tool class

Java barcode generation technology-Barcode4j

Bar code encoding method-----The difference between Code 39 and code 128 barcodes

java generates barcode with JBarcode component

Java barcode generation (1D barcode)

 

Tools:

import java.awt.image.BufferedImage;
import java.io.ByteArrayOutputStream;

import javax.imageio.ImageIO;

import org.apache.commons.lang.StringUtils;
import org.jbarcode.JBarcode;
import org.jbarcode.encode.Code128Encoder;
import org.jbarcode.encode.EAN13Encoder;
import org.jbarcode.encode.InvalidAtributeException;
import org.jbarcode.paint.BaseLineTextPainter;
import org.jbarcode.paint.EAN13TextPainter;
import org.jbarcode.paint.WidthCodedPainter;

import sun.misc.BASE64Encoder;
 
public class BarcodeUtil {
	
	/**
     * 128 barcode
     *
     * @param strBarCode
     * Barcode: 0-100 digits
     * @param dimension
     * Product barcode: size
     * @param barheight
     * Product barcode: height
     * @return image (Base64 encoding)
     */
	  public static String generateBarCode128(String strBarCode,String dimension,String barheight) {
	        
	 
	        try {
	        	ByteArrayOutputStream outputStream = null;
	            BufferedImage bi = null;
	            int len = strBarCode.length();
	            JBarcode productBarcode = new JBarcode(Code128Encoder.getInstance(),
	                    WidthCodedPainter.getInstance(),
	                    EAN13TextPainter.getInstance());
	 
	            // size, area, size density
	            productBarcode.setXDimension(Double.valueOf(dimension).doubleValue());
	            // Height 10.0 = 1cm default 1.5cm
	            //productBarcode.setBarHeight(Double.valueOf(barheight).doubleValue());
	            // width
	            //productBarcode.setWideRatio(Double.valueOf(30).doubleValue());
// whether to display the font
	            productBarcode.setShowText(true);
// show font style
	            productBarcode.setTextPainter(BaseLineTextPainter.getInstance());
	 
	            // generate QR code
	            bi = productBarcode.createBarcode(strBarCode);
	            
	            outputStream = new ByteArrayOutputStream();
	            ImageIO.write(bi, "jpg", outputStream);
	            BASE64Encoder encoder = new BASE64Encoder();
//	          System.err.println(encoder.encode(outputStream.toByteArray()));

	            return encoder.encode(outputStream.toByteArray());
	        } catch (Exception e) {
	            e.printStackTrace ();
	            return "encodeError";
	        }
	    }
	
	
	
	
 
    /**
     * Product barcode
     * @param strBarCode
     * Product barcode: 13 digits
     * @param dimension
     * Product barcode: size
     * @param barheight
     * Product barcode: height
     * @return image (Base64 encoding)
     */
    public static String generateBarCode(String strBarCode,String dimension,String barheight) {
// Is isNumeric a numeric value
// Check. . . . .
        
 
        try {
        	ByteArrayOutputStream outputStream = null;
            BufferedImage bi = null;
            int len = strBarCode.length();
            JBarcode productBarcode = new JBarcode(EAN13Encoder.getInstance(),
                    WidthCodedPainter.getInstance(),
                    EAN13TextPainter.getInstance());
            
            String barCode = strBarCode.substring(0, len - 1);
            String code = strBarCode.substring (len - 1, len);
            
            //check 13 digits
            String checkCode = productBarcode.calcCheckSum(barCode);
            if (!code.equals(checkCode)) {
                return "checkCodeError";
            }
 
 
            // size, area, size
            productBarcode.setXDimension(Double.valueOf(dimension).doubleValue());
            // Height 10.0 = 1cm default 1.5cm
            productBarcode.setBarHeight(Double.valueOf(barheight).doubleValue());
            // width
            productBarcode.setWideRatio(Double.valueOf(25).doubleValue());
            
            // Whether to check 13 digits, default false
            productBarcode.setShowCheckDigit(true);
            
          //Display whether the check code content is displayed in the string content
//          productBarcode.setShowCheckDigit(true);
 
            // generate QR code
            bi = productBarcode.createBarcode(barCode);
            
            outputStream = new ByteArrayOutputStream();
            ImageIO.write(bi, "jpg", outputStream);
            BASE64Encoder encoder = new BASE64Encoder();
//          System.err.println(encoder.encode(outputStream.toByteArray()));

            return encoder.encode(outputStream.toByteArray());
        } catch (Exception e) {
            e.printStackTrace ();
            return "encodeError";
        }
    }
 
    /**
     * @param args
     * @throws InvalidAtributeException
     */
    public static void main(String[] args) throws InvalidAtributeException {
 
        //String encode = BarcodeUtil.generateBarCode("6936983800013","0.5","30");
        String encode2 = BarcodeUtil.generateBarCode128("69369833450938430579753045230800013","0.5","30");
 
        //System.out.println(encode);
        System.out.println(encode2);
 
    }
 
}

 See attachment for JAR package.