jbars
Class BarcodeServlet

java.lang.Object
  |
  +--javax.servlet.GenericServlet
        |
        +--javax.servlet.http.HttpServlet
              |
              +--jbars.BarcodeServlet

All Implemented Interfaces:

java.io.Serializable, javax.servlet.Servlet, javax.servlet.ServletConfig

public class BarcodeServlet

extends javax.servlet.http.HttpServlet

Barcode generator servlet A servlet that creates PNG image of a barcode according to the parameters sent to a the servlet Mandatory HTTP parameters:

• barcodeType
• barcodeValue
• barcodeType

Parameter Values:

• barcodeType: CODE128, CODE93 or INTERLEAVED2OF5
• barcodeValue: Any text if code128 or code93, any integer number if interleaved2of5
• sizeY: height in pixels of the image(default value: 50)
• rotation: angle to rotate the image: 0,90,180 or 270
• barColor:color of the bars: black,green, etc
• textColor:color of the text: black,green, etc
• showText: Show the text true/false
• transparent: Use transparent background true/false
• alignment: Text alignment: CENTER, LEFT or RIGHT
• fontName: anme of the font, for example Helvetica
• fontSize:Font size
• fontStyle: Font style: BOLD, ITALIC or PLAIN

A very basic form to post data to generate a barcode

      <form method="POST" action="/JBars/BarcodeServlet">
        Barcode Type
        <input type="text" name="barcodeType" >
        <br>
        Text to encode:
        <input type="text" name="barcodeValue" >
        <br>
        Size Y(in pixels):
        <input type="text" name="sizeY" >
        <br>
        Rotation:
        <input type="text" name="rotation" >
        <br>
        Bar Color:
        <input type="text" name="barColor" >
        <br>
        showText:
        <input type="text" name="showText" >
        <br>
        fontName:
        <input type="text" name="fontName" >
        <br>
        fontSize:
        <input type="text" name="fontSize" >
        <br>
        fontStyle:
        <input type="text" name="fontStyle" >
        <br>
        transparent:
        <input type="text" name="transparent" >
        <br>
        alignment:
        <input type="text" name="alignment" >
        <br>
        <input type="submit" value="Generator Barcode">
        

Author:

Andres Ederra

See Also:

Serialized Form

Constructor Summary

BarcodeServlet()

Method Summary

protected void	doGet(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) HTTP GET handler Fecha de creación: (10/03/2003 13:28:37)
protected void	doPost(javax.servlet.http.HttpServletRequest req, javax.servlet.http.HttpServletResponse res) HTTP POST handler points to the HTTP GET handler Fecha de creación: (10/03/2003 13:28:37)

Methods inherited from class javax.servlet.http.HttpServlet

doDelete, doHead, doOptions, doPut, doTrace, getLastModified, service, service

Methods inherited from class javax.servlet.GenericServlet

destroy, getInitParameter, getInitParameterNames, getServletConfig, getServletContext, getServletInfo, getServletName, init, init, log, log

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

BarcodeServlet

public BarcodeServlet()

Method Detail

doGet

protected void doGet(javax.servlet.http.HttpServletRequest req,
                     javax.servlet.http.HttpServletResponse res)

HTTP GET handler Fecha de creación: (10/03/2003 13:28:37)

Overrides:

doGet in class javax.servlet.http.HttpServlet

Parameters:

res - javax.servlet.http.HttpServletResponse

doPost

protected void doPost(javax.servlet.http.HttpServletRequest req,
                      javax.servlet.http.HttpServletResponse res)

HTTP POST handler points to the HTTP GET handler Fecha de creación: (10/03/2003 13:28:37)

Overrides:

doPost in class javax.servlet.http.HttpServlet

Parameters:

res - javax.servlet.http.HttpServletResponse