BE THE CODER > Barcodes > Barcode4j Examples

Barcode4J is a free and flexible Java library for Barcode generation. This requires the libraries barcode4j.jar, avalon-framework-4.2.0.jar to be in classpath. The following example shows generating Royal Mail Barcode.

File Name :	com/bethecoder/tutorials/barcode4j/RoyalMailCBCTest.java
Author :	Sudhakar KV
Email :	[email protected]


package com.bethecoder.tutorials.barcode4j;



import java.awt.image.BufferedImage;

import java.io.FileOutputStream;

import java.io.IOException;

import java.io.OutputStream;



import org.apache.avalon.framework.configuration.Configuration;

import org.apache.avalon.framework.configuration.ConfigurationException;

import org.apache.avalon.framework.configuration.DefaultConfiguration;

import org.krysalis.barcode4j.BarcodeException;

import org.krysalis.barcode4j.BarcodeGenerator;

import org.krysalis.barcode4j.BarcodeUtil;

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



public class RoyalMailCBCTest {



  /**

   * @param args

   * @throws BarcodeException 

   * @throws ConfigurationException 

   * @throws IOException 

   */

  public static void main(String[] args) throws ConfigurationException, BarcodeException, IOException {



    BarcodeUtil util = BarcodeUtil.getInstance();

    BarcodeGenerator gen = util.createBarcodeGenerator(buildCfg("royal-mail-cbc"));



    OutputStream fout = new FileOutputStream("royal-mail-cbc.jpg");

    int resolution = 200;

    BitmapCanvasProvider canvas = new BitmapCanvasProvider(

        fout, "image/jpeg", resolution, BufferedImage.TYPE_BYTE_BINARY, false, 0);



    gen.generateBarcode(canvas, "0123416");

    canvas.finish();

  }



  private static Configuration buildCfg(String type) {

    DefaultConfiguration cfg = new DefaultConfiguration("barcode");



    //Bar code type

    DefaultConfiguration child = new DefaultConfiguration(type);

      cfg.addChild(child);

    

      //Human readable text position

      DefaultConfiguration attr = new DefaultConfiguration("human-readable");

      DefaultConfiguration subAttr = new DefaultConfiguration("placement");

        subAttr.setValue("bottom");

        attr.addChild(subAttr);

        

        child.addChild(attr);

    return cfg;

  }

}