code did not work with french.

Illegal character: `  

  
The error occurred in D:\iis\cflove.org\examples\barcode\datamatrix.cfc: line 57

55 :     </cfswitch>
56 :    
57 :     <cfset Reader.generateBarcode(canvas, JavaCast('string',value))>
58 :     <cfset canvas.finish()>
59 :     <cfset out.close()>

The source code can be found here: http://www.cflove.org/examples/barcode/bc.rar

OK, I got this working for PDF417 barcodes. From what I can tell, the input params as specified in this J4L doc are incorrect (or I am missing the point there!): http://www.java4less.com/barcodes/barcodes.php?info=guide

The correct PDF417 input params are listed in the Java doc html page BarCode2D.html, in example 1. This html doc is located in the rbard10.zip file: location: rbard10\javadoc\com\java4less\rbarcode\BarCode2D.html.

To clarify, to create PDF417 barcodes you need only this jar file:
http://www.java4less.com/rbard10.zip copy only this file rbarcode.jar to the coldfusion8 lib folder as Ryan describes.

——–
CODE: there are 2 files:

1) The CFC: save as PDF417BarCode_j4l.cfc

<cfcomponent displayname="Wrapper for Java4Less 2D BarCode PDF417">
    <cffunction name="init">
        <!— used below, see comment there. —>
        <cfset var sys = ''>
        <!— create a temporary instance of the writer, just to make sure it is available.
        We can't create a persistance instance of this because it is not thread safe. —>
        <cfset var Writer = CreateObject('java',"com.java4less.rdatamatrix.RDataMatrix").init()>
        
        <cfreturn this>
    </cffunction>

    
    
    <cffunction name="createBarCode" access="public" returntype="Any" output="yes" hint="Creates a barcode and returns a ColdFusion image object containing the barcode.">
        <cfargument name="width" default="90">
        <cfargument name="height" default="250">
        <cfargument name="resolution" default="1">
        <cfargument name="PDFECLevel" default="4">
        
        <!— PDF_TEXT, PDF_BYTE, PDF_NUMERIC —>
        <cfargument name="PDFMode" default="PDF_TEXT">
        
        <cfargument name="barType" default="PDF417">
        <cfargument name="code" hint="Text to encode in barcode" required="yes">
        
        <!— dont know max? —>
        <cfargument name="PDFMaxRows" default="30">
        
        <!— 1 – 30 —>
        <cfargument name="PDFColumns" default="10">
        
        <!—  3 – 90 —>
        <cfargument name="PDFRows" default="10">
        
        <cfargument name="rotate" default="90">
        
        
        
        <!— create an image to place this barcode into —>
        <cfset var ReturnImage = ImageNew('',90,250,'grayscale')>
        
        <!— the writer is not thread safe, so we must create an instance of it for each request —>
        <cfset var Writer = CreateObject('java',"com.java4less.rbarcode.BarCode2D").init()>
        
        <cfset Writer.setSize(Arguments.width,Arguments.height)>
        <cfset Writer.resolution = Arguments.resolution>
        <cfset Writer.PDFECLevel = Arguments.PDFECLevel>
        <cfset Writer.PDFMode = Writer[Arguments.PDFMode]>
        <cfset Writer.barType = Writer[Arguments.barType]>
        <cfset Writer.code = Arguments.code>
        <cfset Writer.PDFMaxRows = Arguments.PDFMaxRows>
        <cfset Writer.PDFColumns = Arguments.PDFColumns>
        <cfset Writer.PDFRows = Arguments.PDFRows>
        <cfset Writer.rotate = Arguments.rotate>
        
        
        
        
        <!— now 'paint' the barcode into our ColdFusion image object —>
        <cfset Writer.paint(ImageGetBufferedImage(ReturnImage).createGraphics())>
        
        <cfreturn ReturnImage>
        
    </cffunction>

</cfcomponent>

2) The cfm file: save as test.cfm (in the same folder as the CFC above).

<cfset BarCoder = CreateObject("component","PDF417BarCode_j4l").init()>

<cfset ImageObjContainingBarcode = BarCoder.createBarCode(code='My text to encode')>

<p>
<cfimage action="writetobrowser" source="#ImageObjContainingBarcode#">
</p>
——————-

Nb. i have rotated the barcode, but you can change the rotate angle as you wish, see above in the CFC <cfargument name="rotate" default="90">

also note, in setting the input params there are 2 methods used above:
1. <cfset Writer.barType = Writer[Arguments.barType]>
2. <cfset Writer.code = Arguments.code>

1 used when selecting an option from an array of possible types.
2 used when setting a simple value like the code (text to encode).

good luck… and thanks again Ryan.

Right now I am working on modifying your cf code to write PDF417 barcodes, simple right, just change the java class and the correct param names/values… but no, I have hit a brick-wall and I would really appreciate your help if possible.

For writing matrix barcodes in your example, you specify the following input parameters, but I can't see how this is working, ie. the names you use are different to those as specified in the J4L documentation (help: http://www.java4less.com/barcodes/barcodes.php?info=guide#dm):

<cfset var Writer = CreateObject('java',"com.java4less.rdatamatrix.RDataMatrix").init()>
        
        <cfset Writer.code = Arguments.text>
        <cfset Writer.dotPixels = Arguments.dotPixels>
        <cfset Writer.encoding = Writer[Arguments.encoding]>
        <cfset Writer.preferredFormat = Writer[Arguments.preferredFormat]>
        <cfset Writer.margin = Arguments.margin>
        <cfset Writer.setSize(Arguments.width,Arguments.height)>

ie. you specify 'dotPixels' and 'code' but the J4L documentation specifies the Parameters and properties of the Java Class as
'DOT_PIXELS' and 'BARCODE'. There are others but I am just showing these examples.
Perhaps the J4L documentation wrong?

Also confusing: The J4L documentation (help url as above) specifies the 3 main RBarcode classes:

com.java4less.rbarcode.BarCode: for 1D symbologies
com.java4less.rbarcode.BarCode2D: for PDF417 and Macro PDF417 symbologies
com.java4less.rdatamatrix.DataMatrix: for Datamatrix symbology

But when you create the java object for a matrix barcode, you use:
com.java4less.rdatamatrix.RDataMatrix
ie. *R*DataMatrix, with an 'R'.

Could it be possible that your matrix barcode example uses different RBarcode java classes? Perhaps an earlier version to those as current on their site now?

Also…. if you could show a working example, writing a PDF417 barcode, I would be more than happy to make a nice donation via paypal.

Thanks in advance,
David

I'm trying to run this in Railo (v 3.1.1.000) and getting the following error:

"can't assign value to a Object of this type [com.java4less.rdatamatrix.RDataMatrix] with key DOTPIXELS"

for this source code line in your CFC:
<cfset Writer.dotPixels = Arguments.dotPixels>

The code is just the demo code from above. Any idea what I'm doing wrong?

Thanks.

<cfset objBarCoder = CreateObject("component","#APPLICATION.componentPath#/2DBarCode_j4l").init()>
<cfset BCImage = objBarCoder.createBarCode(text='my text to place into barcode',margin=50)>
<cfimage action = "writeToBrowser" source = "#BCImage#" >
<br />
<cfset results = objBarCoder.readFromImage(#BCImage#)>
<cfdump var=#results# /><br />
<cfset BCImage2 = objBarCoder.createBarCode(text='The quick brown fox jumps over the lazy dog',margin=50)>
<cfimage action = "writeToBrowser" source = "#BCImage2#" >
<br />
<cfset results2 = objBarCoder.readFromImage(#BCImage2#)>
<cfdump var=#results2# /><br />
<cfimage action = "writeToBrowser" source = "#BCImage2#" >
<br />
<cfset results2 = objBarCoder.readFromImage(#BCImage2#)>
<cfdump var=#results2# /><br />