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Java Barcode QR Code Generator


Barcode QR-Code Generation in Java Class, Jasper Reports, iReport, BIRT

Java Barcode offers the most affordable Java barcode generator for barcode Java professionals.


Java QR-Code Introduction


QR-Code is also known as Denso Barcode, QRCode, Quick Response Code, JIS X 0510, ISO/IEC18004

QR Code is a kind of 2-D (two-dimensional) symbology developed by Denso Wave (a division of Denso Corporation at the time) and released in 1994 with the primary aim of being a symbol that is easily interpreted by scanner equipment.

QR Code is capable of handling all types of data, such as numeric and alphabetic characters, Kanji, Kana, Hiragana, symbols, binary, and control codes.

The symbol versions of QR Code range from Version 1 to Version 40. Each version has a different module configuration or number of modules (the module refers to the black and white dots that make up QR Code). "Module configuration" refers to the number of modules contained in a symbol, commencing with Version 1 (21 x 21 modules) up to Version 40 (177 x 177 modules). Each higher version number comprises 4 additional modules per side. Each QR Code symbol version has the maximum data capacity according to the amount of data, character type and error correction level. In other words, as the amount of data increases, more modules are required to comprise QR Code, resulting in larger QR Code symbols.

QR Code has error correction capability to restore data if the code is dirty or damaged. Four error correction levels are available for users to choose according to the operating environment. Raising this level improves error correction capability but also increases the amount of data QR Code size. To select error correction level, various factors such as the operating environment and QR Code size need to be considered. Level Q or H may be selected for factory environment where QR Code gets dirty, whereas Level L may be selected for clean environment with the large amount of data. Typically, Level M (15%) is most frequently selected. The QR Code error correction feature is implemented by adding a Reed-Solomon Code to the original data.


Java QR-Code Properties


Class Properties HTTP Parameters Default Comments
data data "" Barcode value to encode
uom uom PIXEL Unit of meature for all size related settings. 0: pixel; 1: cm; 2: inch. Default is pixel
moduleSize module-size 1 Width of barcode module (narrow bar), default is 1 pixel
leftMargin left-margin 0 Barcode image left margin
rightMargin right-margin 0 Barcode image right margin
topMargin top-margin 0 Barcode image top margin
bottomMargin bottom-margin 0 Barcode image bottom margin
resolution resolution 72 Barcode image resolution in dpi
rotate rotate 0 Barcode rotate angle, valid values: 0, 90, 180, 270
processTilde process-tilde false Set the processTilde property to true, if you want use the tilde character "~" to specify special characters in the input data. Default is false.
~NNN: is used to represent the ASCII character with the value of NNN. NNN is from 000 - 255.
dataMode data-mode 0 (MODE_AUTO)
  • QRCode.MODE_AUTO: It allows encoding all 256 possible 8-bit byte values. This includes all ASCII characters value from 0 to 127 inclusive and provides for international character set support
  • QRCode.MODE_ALPHANUMERIC: It allows encoding alphanumeric data (digits 0 - 9; upper case letters A -Z; nine other characters: space, $ % * + - . / : ).
  • QRCode.MODE_BYTE: It allows encoding byte data (default: ISO/IEC 8859-1).
  • QRCode.MODE_NUMERIC: It allows encoding numeric data (digits 0 - 9).
  • QRCode.MODE_KANJI: It allows encoding Kanji characters.
ecl ecl 0 (ECL_L) QR-Code Error Correction Level. Values: QRCode.ECL_L (0), QRCode.ECL_M (1), QRCode.ECL_Q (2), QRCode.ECL_H (3)
eci eci 3
fnc1Mode fnc1-mode 0 (none)
applicationIndicator ai 0
isStructuredAppend structured-append false If true, then Structured Append is enabled.
symbolCount symbol-count 1 Set the number of total symbols which make the sequence.
symbolIndex symbol-index 1 Set the position of current symbol in the secuence (Start with 0).
parity parity 0
version version 1 Set the position of current symbol in the secuence (Start with 0).



Java Barcode QR Code Generator - How to generate barcode QR-Code in Java Class?

The following Java code illustrates how to generate a barcode in Java class:

QRCode barcode = new QRCode(); 

// set barcode properties
barcode.setCodeText("QRCode"); 
  
// draw and generate barcode to buffered image object
BufferedImage qrcodeImage = barcode.drawBarCode2Image();


Java Barcode QR Code Generator - How to generate QR-Code barcodes to Java Servlet applicatons?

The following Java code illustrates how to generate a barcode in Java Servlet class:

public class BarcodeServlet extends HttpServlet { 
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException 
    { 
        try { 
            QRCode barcode = new QRCode(); 

            // set barcode properties 
            barcode.setCodeText("QRCode");
            
            // draw and generate barcode to response's ServletOutputStream 
            ServletOutputStream servletoutputstream = response.getOutputStream(); 
            
            barcode.drawBarCode2Stream(servletoutputstream); 

        } catch (Exception e) { 
            throw new ServletException(e); 
        } 
    } 
}


Java Barcode QR Code Generator - How to create QR-Code barcodes through HTTP Request?

  1. Install Java Barcode Generator Servlet application to Tomcat or JBoss, developers need copy the barcode folder to your Tomcat application folder, and restart the Tomcat.

  2. After Tomcat restarted, open your browser and navigate to http://your_tomcat_url:port/barcode/qrcode?code-text=QRCODE

  3. You can also insert barcodes in HTML or JSP pages.

    <img src="http://your_tomcat_url:port/barcode/qrcode?code-text=QRCODE">


Java Barcode QR Code Generator - How to draw & print barcode QR-Code to java.awt.Image Object

The following Java source code shows how to generate a barcode in a java.awt.Image object:

public class BarcodeServlet extends HttpServlet { 
    public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException 
    { 
        try { 
            QRCode barcode = new QRCode(); 

            // set barcode properties 
            barcode.setCodeText("QRCode");
            
            // draw and generate barcode to response's ServletOutputStream 
            ServletOutputStream servletoutputstream = response.getOutputStream(); 
            
            barcode.drawBarCode2Stream(servletoutputstream); 

        } catch (Exception e) { 
            throw new ServletException(e); 
        } 
    } 
}




Java QR-Code Properties


Class Properties HTTP Parameters Default Comments
data data "" Barcode value to encode
uom uom PIXEL Unit of meature for all size related settings. 0: pixel; 1: cm; 2: inch. Default is pixel
moduleSize module-size 1 Width of barcode module (narrow bar), default is 1 pixel
leftMargin left-margin 0 Barcode image left margin
rightMargin right-margin 0 Barcode image right margin
topMargin top-margin 0 Barcode image top margin
bottomMargin bottom-margin 0 Barcode image bottom margin
resolution resolution 72 Barcode image resolution in dpi
rotate rotate 0 Barcode rotate angle, valid values: 0, 90, 180, 270
processTilde process-tilde false Set the processTilde property to true, if you want use the tilde character "~" to specify special characters in the input data. Default is false.
~NNN: is used to represent the ASCII character with the value of NNN. NNN is from 000 - 255.
dataMode data-mode 0 (MODE_AUTO)
  • QRCode.MODE_AUTO: It allows encoding all 256 possible 8-bit byte values. This includes all ASCII characters value from 0 to 127 inclusive and provides for international character set support
  • QRCode.MODE_ALPHANUMERIC: It allows encoding alphanumeric data (digits 0 - 9; upper case letters A -Z; nine other characters: space, $ % * + - . / : ).
  • QRCode.MODE_BYTE: It allows encoding byte data (default: ISO/IEC 8859-1).
  • QRCode.MODE_NUMERIC: It allows encoding numeric data (digits 0 - 9).
  • QRCode.MODE_KANJI: It allows encoding Kanji characters.
ecl ecl 0 (ECL_L) QR-Code Error Correction Level. Values: QRCode.ECL_L (0), QRCode.ECL_M (1), QRCode.ECL_Q (2), QRCode.ECL_H (3)
eci eci 3
fnc1Mode fnc1-mode 0 (none)
applicationIndicator ai 0
isStructuredAppend structured-append false If true, then Structured Append is enabled.
symbolCount symbol-count 1 Set the number of total symbols which make the sequence.
symbolIndex symbol-index 1 Set the position of current symbol in the secuence (Start with 0).
parity parity 0
version version 1 Set the position of current symbol in the secuence (Start with 0).





Java Barcode Generator supports most common linear (1d) and matrix (2d) bar code standards, including:

2D Barcodes Code-39 related Code-128 related Code-25 related EAN/UPC related Other Linear Barcodes
Data Matrix

PDF-417

QR-Code

Code-39

Code-93

Code-128

GS1-128/UCC/EAN-128 		Code 2 of 5

Interleaved 2 of 5

ITF-14

Identcode

Leitcode

EAN-8

EAN-13

ISBN

ISSN

UPC-A

UPC-E 		Codabar

Code-11

POSTNET

PLANET

USPS Intelligent Mail Barcode (OneCode)

RM4SCC

MSI Plessey






Java QR-Code, QR-Code java, Java QR-Code Generator

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