Codabar is a linear barcode symbology developed in 1972 by Pitney Bowes Corp.
It was designed to be accurately read even when printed on dot-matrix printers for multi-part forms such as FedEx airbills and blood bank forms, where variants are still in use as of 2007.
This symbology is used by U.S. blood banks, photo labs, and on FedEx airbills.
Because Codabar is self-checking, it does not define a check digit. This
symbology starts and finishes with one of four possible characters A, B, C, or
D.
There are two ways to create barcode images in your Java web applications.
This is the simplest way to stream barcode image using our provided barcode servlet classes.
And it will not save barcode images in your server side.
Under demo package, copy barcode folder to your java servlet container like tomcat.
To test your installation, goto http://YourDomain:Port/barcode/barcode?Data=123456789&Type=CODE39
To create barcode image in your JSP page, you can pass the url to IMG tag src value.
For example, <img src="http://YourDomain:Port/barcode/barcode?Data=123456789&Type=CODE39" />
The second method is similar with the way to generate barcode in Java applications.
View all supported barcode types and values. Use the number value for the java bean class and the number or text value for the servlet.
For example, the servlet query url should include:
Type=CODE128 or Type=22
data
Data
""
This is the barcode text to be encoded. The type is String.
EAN 8: User should only provide 7 digits, and DO NOT include last digit checksum character.
EAN 13: User should only provide 12 digits, and DO NOT include last digit checksum character.
UPCA: User should only provide 11 digits, and DO NOT include last digit checksum character.
UPCE: User should only provide 6 digits, and DO NOT include last digit checksum character.
sData
SData
""
Supplement data for ISBN, ISSN, EAN 8, EAN 13, UPCA, UPCE only. The type is String.
addCheckSum
AddCheckSum
true
Valid values are true and false. If barcode type check sum is compulsory or not applied, addCheckSum will not work. Please check each barcode symbologies to get more details.
processTilde
ProcessTilde
true
For barcode Code 128 only. Set the ProcessTilde property to true, if you want use the tilde character "~" to specify special characters in the input data. Default is true. ~NNN: is used to represent the ASCII character with the value of NNN.
Codabar
codabarStartChar
CodabarStartChar
A
One of four possible start characters (A, B, C, or D).
codabarStopChar
CodabarStopChar
A
One of four possible stop characters (A, B, C, or D).
UPC-E
UPCENumberSystem
UPCENumberSystem
0
Valid values are 0 and 1. The default is 0. UPC-E may only be used if the number system is 0 or 1. The characters encoded are encoded with odd and even parity from the left-hand columns of the EAN-13 character formats in the table previously provided. The parity used for each character depends on the number system (0 or 1) and the check digit from the original UPC-A barcode.
Barcode Image Style
uom
UOM
0 (pixel)
Unit of measure for barcode size settings, type is float, default is 0 (pixel). Valid values are 0 (pixel), 1 (CM), 2 (Inch)
resolution
Resolution
96
Image resolution. Default is 96 DPI.
barWidth
BarWidth
0
Bar cell width, type is float. Its unit of measure is decided by uom.
leftMargin
LeftMargin
0
The left margin. Its unit of measure is decided by uom.
rightMargin
RightMargin
0
The right margin. Its unit of measure is decided by uom.
topMargin
TopMargin
0
The top margin. Its unit of measure is decided by uom.
bottomMargin
BottomMargin
0
The bottom margin. Its unit of measure is decided by uom.
showText
ShowText
true
If this value is true (T in servlet), barcode data will be
displayed with the barcode. The servlet convert "T" to true and
"F" to false.
textFont
TextFont
Arial
The font used to display text in barcode image. To change the font, use the following
format:
Font font = new Font("Arial", Font.BOLD, 13);
barcode.setTextFont(font);
and to change the font in the servlet, use this format:
&TextFont=Arial|Bold|13
imageFormat
ImageFormat
gif
Valid values are "gif" and "jpeg". This setting is only valid in Servlet not in bean class.
rotate
Rotate
0
If you want to rotate barcode image.
Value can be
0 (Image Bottom Facing Down),
1 (Image Bottom Facing Left),
2 (Image Bottom Facing Up),
3 (Image Bottom Facing Right)
Copyright 2008 BarcodeLib.com. Provides High Quality Barcode Codabar for Java, Barcode Codabar for JasperReports Library. All rights reserved.