Aspose Demos > Java Components > Aspose.BarCode for Java > Java > Barcode Generator > Linear, 2D and Postal Barcodes

Welcome to theAspose.BarCode for Java Featured Demos!

Aspose evaluation watermark is injected into image when this demo runs without a license in evaluation mode.

This is a simple demo that generates a BarCode of selected Symbology Type. You can set the CodeText using the textbox provided on the webpage and generate the BarCode. You can right click on the image and save in your local disk.

For more details please see the following topics:



Codetext:
Symbology Type:
JAVA

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//////////////////////////////////////////////////////////////////////////
// Copyright 2002-2010 Aspose Pty Ltd. All Rights Reserved.
//
// This file is part of Aspose.BarCode. The source code in this file
// is only intended as a supplement to the documentation, and is provided
// "as is", without warranty of any kind, either expressed or implied.
//////////////////////////////////////////////////////////////////////////
package com.aspose.barcode.demos;

import com.aspose.barcode.*;
import java.io.Serializable;
import javax.faces.el.ValueBinding;

public class BarCodeGenerator extends Demo implements Serializable {

    public BarCodeGenerator() {
    }

    public void execute() throws Exception {
        try {
            // Get the symbology type selected by user.
            String symbologyType = request.getParameter("symbologytype");
            ValueBinding theBean = context.getApplication().createValueBinding("#{mycontext.symbologytype}");
            if (null != theBean) {
                symbologyType = (String) theBean.getValue(context);
            } else {
                symbologyType = "CODE39STANDARD";
            }

            String strCodetext = request.getParameter("codetext");
            ValueBinding theBeanCodetext = context.getApplication().createValueBinding("#{mycontext.codetext}");
            if (null != theBeanCodetext) {
                strCodetext = (String) theBeanCodetext.getValue(context);
            } else {
                strCodetext = "test-123";
            }

            // generate the barcode
            BarCodeBuilder builder = new BarCodeBuilder();
            builder.setCodeText(strCodetext);

            builder.setSymbology(Symbology.parse(symbologyType));

            // save barcode in "generated" folder
            builder.save(mGeneratedDir.getAbsolutePath() + "/barcode.jpg");
        } catch (Exception ex) {
            throw ex;
        }
    }

    public String executeDemo() {

        try {
            init();

            execute();

            sendToBrowser(mGeneratedDir.getAbsolutePath() + "\\barcode", ".jpg", true);
        } catch (Exception e) {
            throw new RuntimeException(e);
        }

        return "";
    }
}








		


JAVA



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package com.aspose.barcode.demos;

import java.io.*;

public class AsposeContext implements Serializable {

    private String _codtextColor = "BLACK";
    public String getCodetextColor() {
        return _codtextColor;
    }
    public void setCodetextColor(String v) {
        _codtextColor = v;
    }

    private String _xdimension = "0.6";
    public String getXdimension() {
        return _xdimension;
    }
    public void setXdimension(String v) {
        _xdimension = v;
    }

    private String _rotationAngle = "0";
    public String getRotationAngle() {
        return _rotationAngle;
    }
    public void setRotationAngle(String v) {
        _rotationAngle = v;
    }

    private String _imageQuality = "DEFAULT";
    public String getImageQuality() {
        return _imageQuality;
    }
    public void setImageQuality(String v) {
        _imageQuality = v;
    }

    private String _readType = "CODE128";
    public String getReadtype() {
        return _readType;
    }
    public void setReadtype(String v) {
        _readType = v;
    }

    private String _symbologyType = "CODE128";
    public String getSymbologytype() {
        return _symbologyType;
    }
    public void setSymbologytype(String v) {
        _symbologyType = v;
    }

    private String _codetext = "codetext";
    public String getCodetext() {
        return _codetext;
    }
    public void setCodetext(String v) {
        _codetext = v;
    }

    private String _mimeType = "image/jpg";
    public String getMimetype() {
        return _mimeType;
    }

    private Boolean _openNew = false;

    public Boolean getOpennewwindow() {
        return _openNew;
    }
    public void setOpennewwindow(Boolean v) {
        _openNew = v;
    }

    // Default Constructor
    public AsposeContext() {
    }
}








		


JAVA



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//////////////////////////////////////////////////////////////////////////
// Copyright 2002-2010 Aspose Pty Ltd. All Rights Reserved.
//
// This file is part of Aspose.BarCode. The source code in this file
// is only intended as a supplement to the documentation, and is provided
// "as is", without warranty of any kind, either expressed or implied.
//////////////////////////////////////////////////////////////////////////
package com.aspose.barcode.demos;

import java.io.File;
import java.net.URL;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.faces.context.FacesContext;

///////////////////////
import java.text.SimpleDateFormat;
import com.icesoft.faces.context.ByteArrayResource;
import com.icesoft.faces.context.Resource;
import java.io.BufferedInputStream;
import java.io.ByteArrayOutputStream;
import java.io.FileInputStream;
import java.io.IOException;
import java.util.Date;
import java.util.Locale;
import java.lang.reflect.*;

/**
 * Base class for Aspose.BarCode.Demos classes that execute specific demos.
 */
public abstract class Demo {

    private byte[] imgBytes = null;
    protected static final String GENERATED_DIR_SHORT_NAME = "generated";

    /**
     * Called before launching any concrete demo-classes.
     * We need application path so we can find the database and template documents.
     */
    private void initDemo() throws Exception {
        //calculate common project dirs and files used by all demos.
        mProjectDir = getProjectDir();
        mGeneratedDir = new File(mProjectDir, "generated");

        //wipe out the dir for generated files.
        if (mGeneratedDir.exists()) {
            File[] files = mGeneratedDir.listFiles();
            for (int i = 0; i < files.length; i++) {
                files[i].delete();
            }
        } else {
            mGeneratedDir.mkdir();
        }

        context = FacesContext.getCurrentInstance();
        request = (HttpServletRequest) context.getExternalContext().getRequest();
        response = (HttpServletResponse) context.getExternalContext().getResponse();

        initLicense(new com.aspose.barcode.License());
        initLicense(new aspose.pdf.License());
        initLicense(new com.aspose.words.License());
        initLicense(new com.aspose.cells.License());
        initLicense(new com.aspose.pdf.kit.License());

        //LicenseUtil.setLicenses();
    }

    /**
     * Calculates the root dir of the demo project.
     *
     * The demo project dir is "demos/Aspose.BarCode.Demos".
     * It is proposed that compiled classes will be placed by compiler into "classes" subdir
     * of the project dir, so Demo.class (this) will be placed into
     * "demos/Aspose.BarCode.Demos/classes/com/aspose/BarCode/demos/Demo.class".
     */
    private static File getProjectDir() {
        URL url = Demo.class.getResource("Demo.class");

        String path = new File(url.getPath()).getAbsolutePath();
        String subPath = "\\classes\\com\\aspose\\barcode\\demos\\Demo.class";

        return new File(path.substring(0, path.length() - subPath.length()));
    }

    /**
     * Called by concrete demo-class. Calculates paths to files used solely by this concrete demo.
     */
    protected void init() throws Exception {
        initDemo();
    }
    /**
     * Project dir. Something like: 'Aspose.BarCode.Java installation path'\\demos\\Aspose.BarCode.Demos
     */
    protected static File mProjectDir;
    /**
     * Directory for images generated by the demos: demos\\generated.
     */
    protected static File mGeneratedDir;

    /**
     * Sends the document to the client browser.
     * demoName = full path + filename - no extention
     * formatType = extention
     */
    protected void sendToBrowser(String demoName, String formatType, boolean openNewWindow)
            throws Exception {
        //System.out.println("Sending " + demoName + ", " + formatType);
        imgBytes = null;
        String fileName = demoName + formatType;

        // NOTE by Vit - IceFaces has a standard ice:outputResource control
        // to allow downloading resources. We don't have to use response for this purpose.

        // response.getOutputStream()
        ByteArrayOutputStream out = new ByteArrayOutputStream();

        //Set Response content type
        //response.setContentType("application/msword");
//        setResptype("image/jpg");

        BufferedInputStream bis = new BufferedInputStream(new FileInputStream(fileName));
        int c;
        while ((c = bis.read()) > -1) {
            out.write(c);
        }
        imgBytes = out.toByteArray();
        bis.close();
        //out.reset();

        setResponse(formatType, out);
        //context.responseComplete();
    }

    protected void setResponse(String formatType, ByteArrayOutputStream out) throws IOException {
        setFilename(formatType);
        resp = out.toByteArray();
        out.close();
        // outputStream.write(this.response);
    }

    public void setFilename(String formatType) {

        SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MMM-dd_hh_mm_ss-", Locale.US);
        String curDate = formatter.format(new Date());

        this.fileName = curDate + FILE_NAME + formatType;

        //System.out.println("Response: " + this.fileName + " (" + v + ")");
    }
    
    protected FacesContext context;
    protected HttpServletRequest request;
    protected HttpServletResponse response;
    //////////////////////////////////////////////////////////
    protected final String FILE_NAME = "barcode";

    public Resource getGeneratedfile() {
        byte[] res = getResult();
        if (null == res || res.length < 1) {
            return null;
        }
        return new ByteArrayResource(res);
    }
    private String fileName = FILE_NAME;

    public String getFilename() {
        return fileName;
    }
    private String respType = "image/jpg";

    public String getResptype() {
        return respType;
    }

    public void setResptype(String v) {
        respType = v;
    }

    
    public byte[] getResult() {
        return resp;
    }

    protected byte[] resp;

    /**
     *
     * Initializes license (if demo license is available).
     * you may insert your licensing code here that would use obj's
     * setLicense based on InputStream rather than passing it on
     * to 3rd-party class.
     *
     */
    public static void initLicense(Object obj) {
        try {

            Class myclass = Class.forName("com.aspose.demos.Common");
            if (null == myclass) {
                System.out.println("initLicense not found");
                return;
            }

            //Use reflection to list methods and invoke them
            Method[] methods = myclass.getMethods();
            Object object = myclass.newInstance();

            Class partypes[] = new Class[1];
            partypes[0] = Object.class;

            Method meth = myclass.getMethod("initLicense", partypes);
            if (null != meth) {

                //System.out.println("Calling " + meth.getName());
                Object arglist[] = new Object[1];
                arglist[0] = obj;

                meth.invoke(object, arglist);
            }
        } catch (ClassNotFoundException cnfe) {
            // Ignore
        } catch (Exception ex) {
            ex.printStackTrace();
        }
    }

    public byte[] getImgBytes() {
        return imgBytes;
    }
}








		


XHTML



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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
      xmlns:ice="http://www.icesoft.com/icefaces/component"
      xmlns:ui="http://java.sun.com/jsf/facelets"
      xmlns:h="http://java.sun.com/jsf/html"
      xmlns:f="http://java.sun.com/jsf/core"
      xmlns:c="http://java.sun.com/jstl/core"
      xmlns:jsf="http://www.aspose.com/jsf"
      >

    <ui:composition template="/WEB-INF/includes/templates/page-template.xhtml">

        <ui:define name="pageTitle">
            Generate BarCode - Aspose.BarCode for Java Demos
        </ui:define>

        <ui:define name="page-content">
            <ui:decorate template="/WEB-INF/includes/templates/tabbed_container.xhtml">
                <ui:define name="example">

                    <p class="componentDescriptionTxt">Welcome to the <STRONG>Aspose.BarCode for Java</STRONG> Featured Demos!</p>
                    <p class="componentDescriptionTxt">Aspose evaluation watermark is injected into
                        image when this demo runs without a license in evaluation mode.</p>

                    <p class="componentDescriptionTxt" align="left">
                        This is a simple demo that generates a BarCode of selected Symbology Type. 
                        You can set the CodeText using the textbox provided on the webpage and generate the BarCode.
                        You can right click on the image and save in your local disk.<br/><br/>
                        For more details please see the following topics:
                    </p>

                    <ul>
                        <li style="text-align: left">
                            <a href="http://www.aspose.com/documentation/java-components/aspose.barcode-for-java/set-code-text-for-barcode.html">Set Code Text for BarCode</a>
                        </li>
                        <li style="text-align: left">
                            <a href="http://www.aspose.com/documentation/java-components/aspose.barcode-for-java/specify-symbologies-for-barcodes.html">Specify Symbologies for BarCode</a>
                        </li>
                        <li style="text-align: left">
                            <a href="http://www.aspose.com/documentation/java-components/aspose.barcode-for-java/save-barcode-images-to-different-formats.html">Save BarCode Images to Different Formats</a>
                        </li>
                    </ul>
                    <br></br><br></br>
                    <table>
                        <tr>
                            <td align="left">Codetext:</td>
                            <td width="10"></td>
                            <td align="left">
                                <h:inputText id="codetext" value="#{mycontext.codetext}"></h:inputText>
                            </td>
                        </tr>
                        <tr>
                            <td align="left">Symbology Type:</td>
                            <td width="10"></td>
                            <td><ui:include src="/WEB-INF/includes/templates/symbology-types.xhtml" /></td>
                        </tr>

                        <tr>
                            <td></td>
                            <td width="10"></td>
                            <td></td>
                        </tr>
                    </table>

                    <h:commandButton id="generate" action="#{generate.executeDemo}" value="Generate BarCode" />

                    <ice:outputResource id="outResource"
                                        mimeType="image/jpg"
                                        resource="#{generate.generatedfile}"
                                        fileName="#{generate.filename}"
                                        shared="false" />
                    <ice:graphicImage value="#{generate.imgBytes}"
                                      ></ice:graphicImage>
                </ui:define>
            </ui:decorate>
        </ui:define>
    </ui:composition>
</html>