Java GS1-DataBar Generator Tutorial

// Build Java GS1-DataBar barcode object 
GS1DataBar barcode = new GS1DataBar(); 

// Encode GS1-DataBar data
barcode.setData("GS1DataBar-JAVA"); 

// Generate GS1DataBar barcode & print into Graphics2D object
barcode.drawBarcode("Java Graphics2D object"); 

// Generate GS1DataBar barcode & encode into GIF format
barcode.drawBarcode("C://barcode-gs1-databar.gif"); 

// Generate GS1DataBar barcode & render into JPEG format
barcode.drawBarcode("C://barcode-gs1-databar.jpg"); 

// Draw GS1DataBar barcode & paint into EPS image format
barcode.drawBarcode2EPS("C://barcode-gs1-databar.eps"); 

import com.onbarcode.barcode.AbstractBarcode; 
import com.onbarcode.barcode.GS1DataBar; 
import javax.servlet.http.HttpServlet; 
import javax.servlet.http.HttpServletRequest; 
import javax.servlet.http.HttpServletResponse; 
import javax.servlet.ServletException; 
import javax.servlet.ServletOutputStream; 
   
public class BarcodeServlet extends HttpServlet 
{ 
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException 
    { 
        try { 
            GS1DataBar barcode = new GS1DataBar(); 
            barcode.setData("11111555551234"); 
                 
            ServletOutputStream servletoutputstream = response.getOutputStream(); 
              
            response.setContentType("image/jpeg"); 
            response.setHeader("Pragma", "no-cache"); 
            response.setHeader("Cache-Control", "no-cache"); 
            response.setDateHeader("Expires", 0); 
           
            // Generate EAN128 barcode & output to ServletOutputStream
            barcode.drawBarcode(servletoutputstream); 
      
        } catch (Exception e) { 
            throw new ServletException(e); 
        } 
    } 
}