Java Two-dimensional code

When HTTP://WWW.OSTOOLS.NET/QR saw a tool to generate a QR code, an idea was created:

Why don't you do a two-dimensional code generation and parsing tools? Spent a lot of time, hey, do it ...

Take a look at it first:

CODE_QR:

code_128:

pdf_417:

Two-dimensional code means:

Here are the steps to proceed:

One: Download the zxing package:

Can be downloaded here: http://code.google.com/p/zxing/downloads/list

zxing-2.1.zip:http://code.google.com/p/zxing/downloads/detail?name=zxing-2.1.zip&can=2&q=

Get:

Zxing-2.1\core\core.jar

Zxing-2.1\javase\javase.jar

Two: Add him to the inside of your project:

/qrcodes/src/com/b510/qrcode/qrcode.java

  1/** 2 * 3 */4 package com.b510.qrcode;  5 6 Import Java.awt.image.BufferedImage;  7 Import Java.io.File;  8 Import java.io.IOException; 9 Import java.util.Hashtable; Ten import Java.util.Map; Import Javax.imageio.ImageIO; Import Com.google.zxing.BarcodeFormat; Com.google.zxing.BinaryBitmap import; Com.google.zxing.DecodeHintType import; + Import Com.google.zxing.EncodeHintType; Import Com.google.zxing.LuminanceSource; Import Com.google.zxing.MultiFormatReader; Import Com.google.zxing.MultiFormatWriter; Com.google.zxing.ReaderException import; Import Com.google.zxing.Result; Com.google.zxing.Writer import; Import com.google.zxing.WriterException; Import Com.google.zxing.client.j2se.BufferedImageLuminanceSource; Com.google.zxing.common.BitMatrix import; Com.google.zxing.common.HybridBinarizer import; Com.google.zxing.oned.CodaBarWriter import; Import Com.google.zxing.oned.Code128Writer; Import com.google.zxing.oned.Code39writer; Import Com.google.zxing.oned.EAN13Writer; Import Com.google.zxing.oned.EAN8Writer; Com.google.zxing.oned.ITFWriter import; Com.google.zxing.oned.UPCAWriter import; Com.google.zxing.pdf417.encoder.PDF417Writer import; Com.google.zxing.qrcode.QRCodeWriter import; 37 38/** 39 * Use zxing Open Source tool to generate QR code qrcode * * * @date 2012-10-26 * @author XHW * * * * * * */public class Qrco De {The private static final int BLACK = 0xff000000; a private static final int white = 0xFFFFFFFF; 48 49/* * @param args * * * public static void Main (string[] args) {qrcode test = new QRCode (); The file File = new file ("C://test.png"); 55/** 56 * In the Com.google.zxing.MultiFormatWriter class, we define some codes that we don't know, and the QR code is just one of them. <br> * Public Bitmatrix Encode (String contents, barcodeformat format, int Widt h, int height, Map<EncodeHintType,?> hints) throws Writerexception {for writer writer; Case ean_8:64 writer = new Ean8writer (); break; ean_13:67 writer = new Ean13writer (); ; upc_a:70 writer = new Upcawriter (); ; Qr_code case://Here is the two-dimensional code of the writer = new Qrcodewriter (); a break; code_39:76 writer = new Code39writer (); a break; code_128 Case://This can be generated by the writer = new Code128writer (); break; Bayi Case itf:82 writer = new Itfwriter (); The break; Case pdf_417://This can generate the Pdf417writer writer = new (); The break; Case CODabar:88 writer = new Codabarwriter (); ; default:91 throw new IllegalArgumentException ("No encoder available for format" + forma T); Writer.encode} (contents, format, width, height, hints); 94} * * * Test.encode ("Helloworld,i ' m hongten.welcome to my zone:http://www.cnblogs.com /hongten ", File, Barcodeformat.qr_code, $, (+), NULL); 98 Test.decode (file); 99}100 101/**102 * Generate qrcode QR code <br> 103 * When encoding requires &L in Com.google.zxing.qrcode.encoder.Encoder.java t;br>104 * Static final String default_byte_mode_encoding = "Iso8859-1"; <br>105 * modified to UTF-8, otherwise Chinese post-compilation parsing is not <br>106 */107 public void encode (String contents, file file, barcodeformat format, int width, int height, Map<encodehinttype,?> hints) {108 try {
                 //Eliminate garbled characters
contents = new String (contents.getbytes ("UTF-8"), "iso-8859-1");109 Bitmatrix Bitmatrix = new Multiformatwriter (). Encode (contents, format, width, height);     Etofile (Bitmatrix, "PNG", file), 111} catch (Exception e) {e.printstacktrace (); 113}114            }115 116/**117 * Generate two-dimensional code picture <br>118 * 119 * @param matrix120 * @param format121 * Picture Format 122 * @param file123 * generate QR Code picture location 124 * @throws IOException125 */126 public Stat IC void WriteToFile (Bitmatrix matrix, String format, file file) throws IOException {127 BufferedImage image = Tobu       Fferedimage (matrix); Imageio.write (image, format, file), 129}130 131/**132 * Generate two-dimensional code content <br>133  * 134 * @param matrix135 * @return136 */137 public static BufferedImage Tobufferedimage (Bitmatrix MATRIX) {138 int width = matrix.getwidth (); 139 int height = matrix.getheight (); bufferedimage Image = New BufferedimagE (width, height, bufferedimage.type_int_argb); 141 for (int x = 0; x < width; + +) {142 for (int y = 0; Y < height; y++) {143 Image.setrgb (x, Y, Matrix.get (x, y) = = true?      Black:white); 144}145}146 return image;147}148 149/**150 * Parse qrcode QR code 151 */152 @SuppressWarnings ("unchecked") 153 public void decode (file file) {154 try {155 Buffere Dimage image;156 try {157 image = Imageio.read (file); 158 if (image = = null) {1 System.out.println ("Could not decode image");}161 Luminancesour Ce Source = new Bufferedimageluminancesource (image); 162 Binarybitmap bitmap = new Binarybitmap (New HYBRIDB Inarizer (source)) 163 Result result;164 @SuppressWarnings ("Rawtypes") 165 H ashtable hints = new Hashtable (); 166//Decoding settings are encoded as: utf-8167 hints.put (Decodehinttype.character_set, "Utf-8"); 168 result = new Multi Formatreader (). Decode (bitmap, hints); 169 String resultstr = Result.gettext (); System.ou T.PRINTLN ("Parsed content:" + resultstr); 171} catch (IOException IoE) {172 System.out.println (ioe.tost             Ring ()); 173} catch (Readerexception re) {174 System.out.println (re.tostring ()); 175 }176} catch (Exception ex) {177 System.out.println (ex.tostring ()); 178}179}180}

is not very simple .....

SOURCE Download: Http://files.cnblogs.com/hongten/QRCodes.rar

Java Two-dimensional code