Java EAN-8 Barcodes Generator for Java, J2EE, JasperReports
EAN-8 is also known as European
Article Number 8, EAN-8 Supplement 5/Five-digit Add-On, EAN-8 Supplement
2/Two-digit Add-On, EAN-8+5, EAN-8+2, EAN8, EAN8+5, EAN13+2, UPC-8, GTIN-8,
GS1-8, EAN/UCC-8
An EAN-8 is a barcode and is derived from the longer European Article Number (EAN-13) code. It was introduced mainly to use on small packages where an EAN-13 barcode would be impractical; for example on cigarettes, pencils even though not used very common and chewing gum packets.
EAN-8 is a shortened version of the EAN-13 code. It includes a 2 or 3 digit country code, 4 or 5 data digits (depending on the length of the country code), and a checksum digit. The primary purpose of the EAN-8 is to be used on small packages, so the code must use as little space as possible.
EAN-8 codes are most common in the UK, and as such many UK-based companies use blocks of EAN-8 codes for own-brand products which are only sold in their stores. These are formatted as 1xxx xxxx.
Sample of an EAN-8 Barcode
2. Encoding Data Scope
EAN-8 Barcode for Java supports:
0, 1, 2, 3, 4, 5, 6, 7, 8, 9
3. How to Generate Barcode Image in Standalone Java Applications?
The following code illustrates how to create a barcode in a Java class
1 Linear linear = new Linear();
2 linear.setData("1234567");
3 linear.setType(Linear.EAN8);
4 linear.renderBarcode("c:/barcode.gif");
Create a Linear object (line 1)
set Linear object properties (line 2 - 3)
save into gif file (line 4)
4. How to Generate Barcode Image in Web Applications?
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/linear?Data=1234567&Type=EAN8
To create barcode image in your JSP or html page, you can pass the url to IMG tag src value.
For example, <img src="http://YourDomain:Port/barcode/linear?Data=1234567&Type=EAN8" />
The second method is similar with the way to generate barcode in Java applications.
Create a barcode image in server side
1 Linear linear = new Linear();
2 linear.setData("123456789");
3 linear.setType(Linear.EAN8);
4 linear.renderBarcode("C:/Tools/Tomcat 5.5/webapps/YourWebApp/bimages/barcode.gif");
In your JSP page, you can using IMG tag to display generated image, like <img src="http://YourDomain:Port/YourWebApp/bimages/barcode.gif" />
5. How to Generate Barcode Image in JasperReports?
The following jasper xml content illustrates how to insert a barcode into JasperReports
Just call Linear object method renderBarcode, e.g. linear.renderBarcode("c:/barcode.gif");
8. Barcode Property Settings
Set the type property to Linear.EAN8 or Linear.EAN8_2 or Linear.EAN8_5 Servlet Parameter: "Type".
Set the data property with the value to encode. Type is string.
Servlet Parameter: "Data".
Set the sData property with the supplementary data to encode. Type is string.
Servlet Parameter: "SData".
Setting up barcode image size:
Set property uom (Unit of Measure) for properties barWidth, barHeight, leftMargin, rightMargin, topMargin and bottomMargin.
Default is Linear.UOM_PIXEL (0). Valid values are Linear.UOM_PIXEL (0), Linear.UOM_CM (1), Linear.UOM_Inch (2).
Servlet Parameter: "UOM".
Set the X (for barcode module width) and Y (for barcode module height) properties. Both types are float.
Servlet Parameter: "X", "Y".
Set the leftMargin, rightMargin, topMargin and bottomMargin properties, and types are all float.
Servlet Parameter: "LeftMargin", "RightMargin", "TopMargin", "BottomMargin".
Set the barcodeWidth (barcode image width) and barcodeHeight (barcode image height) properties. Both types are float.
Servlet Parameter: "BarcodeWidth", "BarcodeHeight".
Set the resolution property (Value is expressed in DPI - Dots per inch).
Servlet Parameter: "Resolution".
Setting up text style in barcode image:
Set the showText properties. If this value is true, barcode data will be displayed with the barcode.
Servlet Parameter: "ShowText".
Set the textFont property. The font used to display text in barcode image.
Servlet Parameter: "TextFont".
Set bearerBars property, if you want to draw borders around barcode image. Value can be Linear.BEARERBAR_UNSPECIFIED (-1. let library decide whether draw bear bars or not), Linear.BEARERBAR_NONE (0. no bear bars), Linear.BEARERBAR_FRAME (1. top, bottom, left, right borders drawn), Linear.BEARERBAR_TOPBOTTOM (2. only top, bottom's are drawn).
Servlet Parameter: "BearerBars".
Set rotate property, if you want to rotate barcode image.
Value can be 0 (Linear.ANGLE_0),
1 (Linear.ANGLE_90),
2 (Linear.ANGLE_180),
3 (Linear.ANGLE_270)
Servlet Parameter: "Rotate".
addCheckSum property is not applied here. Barcode Library will always add a check character in the last digit (modulo 10).
Servlet Parameter: "AddCheckSum".
9. How to Set Generated Barcode Image Size?
To set barcode image width and height, there are two ways to do it.
1) You can set barcode image width and height through properties barcodeWidth and barcodeHeight values, barcode library will render the barcode image for you.
or
2) You can set X (barcode module width) and Y (barcode module height) values, barcode library will calculate the barcodeWidth and barcodeHeight values for you, and render the barcode image.