Generating Barcode in Java using Barcode4J API

Barcode4J is an open source JAVA API which is used to generate flexible barcodes. Using Barcode4J one can generate almost all type of barcode formats like Bar Code 11, Bar Code 39, Bar Code 93, Bar Code 128, Bar Code 128A, and Bar Code 128B. 

If you want to know details about Barcode4J, you can find some details here. Below is a sample code demo that demonstrates how to generate barcode of 3 of 9 format (Bar-Code 39) and Bar-Code128.

MyBarCodeUtility.java

import java.awt.image.BufferedImage;

import java.io.File;

import java.io.FileOutputStream;

import java.io.IOException;

import org.krysalis.barcode4j.impl.code128.Code128Bean;

import org.krysalis.barcode4j.impl.code39.Code39Bean;

import org.krysalis.barcode4j.output.bitmap.BitmapCanvasProvider;

import org.krysalis.barcode4j.tools.UnitConv;

public class MyBarCodeUtility {

  private String barCodePath = "D:/";

  

  public void createBarCode128(String fileName) {

    try {

      Code128Bean bean = new Code128Bean();

      final int dpi = 160;

      //Configure the barcode generator

      bean.setModuleWidth(UnitConv.in2mm(2.8f / dpi));

      bean.doQuietZone(false);

      //Open output file

      File outputFile = new File(barCodePath + fileName + ".JPG");

      FileOutputStream out = new FileOutputStream(outputFile);

    

      BitmapCanvasProvider canvas = new BitmapCanvasProvider(

          out, "image/x-png", dpi, BufferedImage.TYPE_BYTE_BINARY, false, 0);

      //Generate the barcode

      bean.generateBarcode(canvas, fileName);

   

      //Signal end of generation

      canvas.finish();

    

      System.out.println("Bar Code is generated successfully…");

    }

    catch (IOException ex) {

      ex.printStackTrace();

    }

  }

  public void createBarCode39(String fileName) {

        try {

          Code39Bean bean39 = new Code39Bean();

          final int dpi = 160;

          //Configure the barcode generator

          bean39.setModuleWidth(UnitConv.in2mm(2.8f / dpi));

          bean39.doQuietZone(false);

          //Open output file

          File outputFile = new File(barCodePath + fileName + ".JPG");

        

          FileOutputStream out = new FileOutputStream(outputFile);

        

          //Set up the canvas provider for monochrome PNG output

          BitmapCanvasProvider canvas = new BitmapCanvasProvider(

              out, "image/x-png", dpi, BufferedImage.TYPE_BYTE_BINARY, false, 0);

          //Generate the barcode

          bean39.generateBarcode(canvas, fileName);

       

          //Signal end of generation

          canvas.finish();

        

          System.out.println("Bar Code is generated successfully…");

        }

        catch (IOException ex) {

            ex.printStackTrace();

        }

      }

  public static void main (String str[])

  {

      MyBarCodeUtility barCodeUtil = new MyBarCodeUtility();

    

      // This will generate Bar-Code 3 of 9 format

      barCodeUtil.createBarCode39("naeemgik - 12345");

    

      // This will generate Bar-Code 128 format

      barCodeUtil.createBarCode128("0123456789");

    

  }

}

After executing the above code snippet two Bar Codes should generate at mentioned path of your hard drive. It should look like:

Bar-Code 39 format

                                  

Bar-Code 128 format