Java UPC-A Generator
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1. Generate UPC-A in Java class with the changing of barcode properties.
// 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("12345678900");
// 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");
2. Generate & encode UPC-A to EPS with changing the values concerned..
// UPCA 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 & encode into EPS
barcode.drawBarcode2EPS("C://barcode-upca.eps"); .
3. Generate & encode UPC-A in html or jsp pages.
1. Copy barcode folder and its contents from demo package to Apache Tomcat.
2. Start Apache Tomcat, go to http://YourDomain:Port/barcode/barcode?DATA=12345678900&TYPE=UPCA
3. Insert an image tag (img) into your page. For example,
<imgsrc="http://YourDomain:Port/barcode/barcode?DATA=12345678900&TYPE=UPCA" />
4. Two ways to set the width and height of generated barcode UPC-A image.
1. Set the values of the barcodeWidth and barcodeHeight properties.
or
2. Set X (bar module width) and Y (bar module height) values
UPC-A Basic Settings
| Properties | Value |
Comments
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| Property | URL | Options | Default | |
| data | DATA | (Data to encode in the Codabar) | "" | UPC-A value to encode UPC-A Character Set:
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| addCheckSum | ADD-CHECK-SUM | (Data to encode in the Codabar) | false | addCheckSum property is not applied here.Java Barcode will always add a check character in the last digit (modulo 10). |
UPC-A Special Settings
| Properties | Value | Comments |
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| Property | URL | Options | Default | |
supData |
NSUP-DATA |
String |
"" | Set the supplement data to encode. Valid values are 2 or 5 digits |
| supHeight | SUP-HEIGHT |
float |
0.8of | A multiplicator of the height of the bar module; The default is 0.8 (80% of Y - bar module height). |
supSpace |
SUP-SPACE |
float |
15 | The separation between the barcode and the supplement. Default is 15 pixel. |
UPC-A Text Settings
| Properties | Value | Comments |
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| Property | URL | Options | Default | |
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showText
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SHOW-TEXT |
true or false |
true |
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textColor
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TEXT-COLOR |
Color |
black | Color of the shown text |
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textFont
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TEXT-FONT
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Font |
new Font("Arial",Font.PLAIN,11 | The font, font style and font size of the text |
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textMargin
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TEXT-MARGIN
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float |
6 | The space between the text and the barcode symbol |
UPC-A Size Settings
| Properties | Value | Comments |
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| Property | URL | Options | Default | |
rotate
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ROTATE |
Degree0, 90, 180, 270 |
0 (Barcode.ROTATE) | Rotate the Angle of the Codabar images |
autoResize
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AUTO-RESIZE |
true or false |
false | Auto resize the generated barcode image |
barcodeHeight |
BARCODE-HEIGHT |
float |
0 | Barcode image Height |
barcodeWidth |
BARCODE-WIDTH |
float |
0 | Barcode image Width |
bottomMargin |
BOTTOM-MARGIN |
float |
0 | Barcode image bottom margin size |
| leftMargin | LEFT-MARGINE | float | 0 | Barcode image left margin size |
| rightMargin | RIGHT-MARGIN | float | 0 | Barcode image right margin size. |
| topMargin | TOP-MARGIN | float | 0 | Barcode image Top margin size |
| barAlignment | BARALIGMENT | int | 1(center) | Barcode horizontal alignment inside the image. 0: left, 1: center, 2: right. |
uom |
UOM |
Pixel, Cm, or Inch |
0(Pixel) | Unit of Measure for all numeric properties.Valid values: 0: pixel; 1: inch; 2: cm. |
| X | X | float | 1 | Width of barcode bar module (narrow bar), default is 1 pixel |
| Y | Y | float | 30 | Height of barcode bar module, default is 30 pixel |
UPC-A Color Settings
| Properties | Value | Comments |
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| Property | URL | Options | Default | |
backColor |
BACK -COLOR |
Color |
white | Barcode image background color |
foreColor |
FORE -COLOR |
Color |
black | Barcode image foreground color |
UPC-A Image Settings
| Properties | Value | Comments |
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| Property | URL | Options | Default | |
resolution |
RESOLUTION |
int |
72 | Resolution of Codabar Image, Dots Per Inch |
Method
// 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"
*/
public byte[] drawBarcodeToBytes() throws Exceptionpublic 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