Java UPC-A Generator Tutorial
Generate, create barcode UPC-A images in Java applications(Servlet, Class, Jasper Report)
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Generate, Create, Print, Draw UPC-A barcode in Java projects

  • Easy to generate UPC-A barcodes in Java Class, J2EE applications
  • Simple to redistribute Java UPC-A barcode library. No registration key. No activation code.
  • Generating high quality UPC-A Bar Code images in GIF, JPEG, Png & EPS formats
  • Generate UPC A barcodes in Jasper Reports, iReport & Eclipse BIRT
  • Completely developed in Java
  • Creating UPC-A with addon symbols of two or five digits
  • Mature UPC A barcode generation Java library used by 2000+ clients





Java Barcode UPC-A Generator Introduction
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Java Barcode is a Java barcode generator which generates high quality 1D (linear) and 2D (matrix) barcodes in Java, Jasper Reports, iReport, and Eclipse BIRT projects.

Barcode UPC-A Introduction

UPC-A is also known as Universal Product Code version A, UPC-A Supplement 5/Five-digit Add-On, UPC-A Supplement 2/Two-digit Add-On, UPC-A+5, UPC-A+2, UPC Code, UPC Symbol, GTIN-12, GS1-12, UCC-12

Java UPC-A Generator - Valid Data Scope

Java UPC-A Generator encodes:

  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9
How to Generate UPC-A Barcodes in Java Class?
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Provided below is some Java demo code for generating UPC-A barcode images in Java class. You can simply copy to your barcoding project for a test. Here is some more advanced UPC-A settings and sample codings: Java UPC-A Generator Demo Source Code
// Create Java UPCA object 
UPCA barcode = new UPCA();

// Set UPCA data text to encode. It must be 11 digits, without the first number system
and the last checksum digit.
barcode.setData("12345678912");

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

// Generate UPCA barcode & encode into GIF format
barcode.drawBarcode("C://barcode-upca.gif");

// Generate UPCA barcode & encode into JPEG format
barcode.drawBarcode("C://barcode-upca.jpg");

// Generate UPCA barcode & encode into EPS
barcode.drawBarcode2EPS("C://barcode-upca.eps");
How to Create UPC-A Image in Html or JSP Pages?
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  1. Under demo package, copy barcode folder and its contents to your tomcat
  2. Start tomcat, navigate to http://YourDomain:Port/barcode/barcode?DATA=12345678912&TYPE=UPCA
  3. To create UPC-A bar code images in html or JSP pages, you can insert a image tag (img) into your page
  4. Example tag, <img src="http://YourDomain:Port/barcode/barcode?DATA=12345678912&TYPE=UPCA" />
How to Generate UPC-A Image in Java Servlet Class?
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import com.onbarcode.barcode.AbstractBarcode; 
import com.onbarcode.barcode.UPCA;
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 {
UPCA barcode = new UPCA();
barcode.setData("12345678912");

ServletOutputStream servletoutputstream = response.getOutputStream();

response.setContentType("image/jpeg");
response.setHeader("Pragma", "no-cache");
response.setHeader("Cache-Control", "no-cache");
response.setDateHeader("Expires", 0);

// Generate UPCA barcode & output to ServletOutputStream
barcode.drawBarcode(servletoutputstream);

} catch (Exception e) {
throw new ServletException(e);
}
}
}
How to Generate & Print Barcode UPC-A Image in Jasper Reports?
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This Java Barcode Generator supports generating UPC-A barcodes in Jasper Reports. Two methods are supported: through JRRenderable implementation or Java Generator buildin Servlet application. Here is the Complete Guide for Barcode Generation in Jasper Reports.
How to Generate & Print Barcode UPC-A Image in iReport?
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Besides Jasper Report, this Java Generator also supports creating & embedding UPC-A linear barcode images in iReport with two methods. Here is the detailed guide: Complete Guide for Barcode Generation in iReport
How to Generate & Print Barcode UPC-A Image in Eclipse BIRT?
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How to Set Generated Barcode UPC-A Image Width and Height?
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  1. You can set barcode image width and height through properties barcodeWidth and barcodeHeight values.
  2. Or else you can set X (bar module width) and Y (bar module height) values
Java UPC-A Generator - Property Settings
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Java UPC-A Generator in Java Class: com.onbarcode.barcode.UPCA

Category Properties Value Comments
Basic Property: data
URL: DATA
Type: String
Default: ""
Barcode value to encode

UPC-A Valid Data Char Set:
  • 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 (Digits)

UPC-A Valid data length:
  • 11 digits only, excluding the last checksum digit.

Property: addCheckSum
iReport & URL: ADD-CHECK-SUM
Type: boolean
Default: false
addCheckSum property is not applied here. Java Barcode will always add a check character in the last digit (modulo 10).
 
UPC-A Related Property: supData
URL: SUP-DATA
Type: String
Default: ""
Set the supplement data to encode. Valid values are 2 or 5 digits
Property: supHeight
iReport & URL: SUP-HEIGHT
Type: float
Default: 0.8f
This is a multiplicator of the height of the bar module; The default is 0.8 (80% of Y - bar module height).
Property: supSpace
iReport & URL: SUP-SPACE
Type: float
Default: 15
The separation between the barcode and the supplement. Default is 15 pixel.
 
Barcode
Size
Related
Property: autoResize
iReport & URL: AUTO-RESIZE
Type: boolean
Default: false
Auto resize the generated barcode image
Property: barAlignment
iReport & URL: BAR-ALIGNMENT
Type: int
Default: 1 (center)
Barcode horizontal alignment inside the image. 0: left, 1: center, 2: right.
Property: uom
iReport & URL: UOM
Type: int
Default: 0 (pixel)
Unit of meature for all size related settings in the library.
Valid values: 0: pixel; 1: inch; 2: cm.
Property: X
iReport & URL: X
Type: float
Default: 1
Width of barcode bar module (narrow bar), default is 1 pixel
Property: Y
iReport & URL: Y
Type: float
Default: 30
Height of barcode bar module, default is 30 pixel
Property: barcodeWidth
iReport & URL: BARCODE-WIDTH
Type: float
Default: 0
Barcode image width.

If barcodeWidth setting is smaller than the barcode required minimum width, the library will automatically reset to barcode minimum width.
Property: barcodeHeight
iReport & URL: BARCODE-HEIGHT
Type: float
Default: 0
Barcode image height.

If barcodeHeight setting is smaller than the barcode required minimum height, the library will automatically reset to barcode minimum height.
Property: leftMargin
iReport & URL: LEFT-MARGIN
Type: float
Default: 0
Barcode image left margin size.
Property: rightMargin
iReport & URL: RIGHT-MARGIN
Type: float
Default: 0
Barcode image right margin size.
Property: topMargin
iReport & URL: TOP-MARGIN
Type: float
Default: 0
Barcode image top margin size.
Property: bottomMargin
iReport & URL: BOTTOM-MARGIN
Type: float
Default: 0
Barcode image bottom margin size.
Property: resolution
iReport & URL: RESOLUTION
Type: int
Default: 72
Barcode image resolution in DPI (Dots per inch).
Property: rotate
iReport & URL: ROTATE
Type: int
Default: 0 (IBarcode.ROTATE_0)
Valid values:

  • 0 (IBarcode.ROTATE_0)
  • 1 (IBarcode.ROTATE_90)
  • 2 (IBarcode.ROTATE_180)
  • 3 (IBarcode.ROTATE_270)
 
Barcode
Colors
Property: backColor
iReport & URL: BACK-COLOR
Type: Color
Default: white
Barcode image background color
Property: foreColor
iReport & URL: FORE-COLOR
Type: Color
Default: black
Barcode image foreground color
 
Font
Style
Property: showText
iReport & URL: SHOW-TEXT
Type: boolean
Default: true
If true, display barcode data text under the barcode, otherwise do not display.
Property: textFont
iReport & URL: TEXT-FONT
Type: Font
Default:
new Font("Arial", Font.PLAIN, 11)
Barcode text font style.

In Java Servlet web streaming, using the url paramter in the following format:
&TEXT-FONT=Arial|bold|9
Property: textMargin
iReport & URL: TEXT-MARGIN
Type: float
Default: 6
Space between barcode and barcode data text, default is 6 pixel
Property: textColor
iReport & URL: TEXT-COLOR
Type: Color
Default: black
Barcode text color
 
Methods
// generate barcode and output to OutputStream object
public boolean drawBarcode(OutputStream outputStream) throws Exception

// generate barcode into a new BufferedImage object
public BufferedImage drawBarcode() throws Exception

/*
    Use this method to generate barcode, and save into gif or jpeg files
    1. to save into gif file, filename ends with ".gif", like "c:\\barcode.gif"
    2. to save into jpeg file, filename ends with ".jpg", like "c:\\barcode.jpg"
    3. to save into png file, filename ends with ".png", like "c:\\barcode.png"
*/
public byte[] drawBarcodeToBytes() throws Exception

public boolean drawBarcode(String imageFile) throws Exception

// Generate barcode and save into EPS file, the filename must ends with ".eps"
public void drawBarcode2EPS(String filename) throws Exception

// Generate barcode on Graphics2D object within certain area
public void drawBarcode(Graphics2D g, Rectangle2D rectangle) throws Exception
Java Barcode Generator Supporting Barcode Symbology Types
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Barcode for Java - Bar Code Types Geneation
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