Javaweb Two-dimensional code

Description Related Packages

zxing-core3.3zxing-javase3.3junit4.12

Pom file

<dependency>    <groupId>Com.google.zxing</groupId>    <artifactId>Core</artifactId>    <version>3.3.0</version></dependency><dependency>    <groupId>Com.google.zxing</groupId>    <artifactId>Javase</artifactId>    <version>3.3.0</version></dependency><dependency>    <groupId>Junit</groupId>    <artifactId>Junit</artifactId>    <version>4.12</version></dependency>

Related code

Package com;import java.awt.image.BufferedImage;import Java.io.File;import java.io.IOException;import Java.nio.file.FileSystems;import Java.nio.file.Path;import Java.util.HashMap;import Java.util.Map;import Javax.imageio.ImageIO;import org.junit.Test;import Com.google.zxing.BarcodeFormat;import Com.google.zxing.Binarizer;import Com.google.zxing.BinaryBitmap;import Com.google.zxing.DecodeHintType;import Com.google.zxing.EncodeHintType;import Com.google.zxing.LuminanceSource;import Com.google.zxing.MultiFormatReader;import Com.google.zxing.MultiFormatWriter;import com.google.zxing.NotFoundException;import Com.google.zxing.Result;import com.google.zxing.WriterException;import Com.google.zxing.client.j2se.BufferedImageLuminanceSource;import Com.google.zxing.client.j2se.MatrixToImageConfig;import Com.google.zxing.client.j2se.MatrixToImageWriter;import Com.google.zxing.common.BitMatrix;import Com.google.zxing.common.HybridBinarizer;import Com.google.zxing.oned.Code128Writer; Public classDemo {Static classimageformat {Static FinalString PNG ="PNG";Static FinalString GIF ="GIF";Static FinalString BMP ="BMP";Static FinalString JPEG ="JPEG"; }@Test     Public void qrcodebuildtest() {//Output directoryString Outpath ="D:\\Demo\\";//Output file nameString outname ="Zxingdemo.png";//Generate contentString contents ="QRCode Demo"; Demo.Qrcodebuild(contents, Outpath, Outname, ImageFormat.PNG, $, $); }@Test     Public void barcodebuildtest() {//Output directoryString Outpath ="D:\\Demo\\";//Output file nameString outname ="Zxingdemo.png";//Generate contentString contents ="BarCode Demo"; Demo.Barcodebuild(contents, Outpath, Outname, ImageFormat.PNG, the, -); }@Test     Public void qrcodeparsetest() {//String content = Demo.qrcodeparse ("D:\\demo\\zxingdemo.png");String content = Demo.Qrcodeparse("Http://dl2.iteye.com/upload/attachment/0103/0259/f1c4cf6c-c825-3504-8c9e-97019e3796d1.png"); System. out.println(NULL= = content?"Parse failed": content); }/*** Two-dimensional code generation     *      * @param contents* Text content     * @param outpath* Output Directory     * @param outname* Output File     * @param format* Output File type (Png,jpeg ...)     * @param width* Create image width     * @param height* Create picture height     */     Public Static void Qrcodebuild(String contents, String Outpath, String outname, string format,intWidthintHeight) {Try{//Output Directory detection            if(!NewFile (Outpath).exists()) {NewFile (Outpath).mkdirs(); } Path Path = filesystems.Getdefault().GetPath(Outpath, outname);//related configuration (coded, white edge)Map<encodehinttype, object> hints =NewHashmap<encodehinttype, object> (); Hints.put(Encodehinttype.Character_set,"UTF-8"); Hints.put(Encodehinttype.MARGIN,1);//GenerateBitmatrix matrix =New Multiformatwriter().encode(contents, Barcodeformat.Qr_code, width, height, hints);//Output two-dimensional codeMatrixtoimageconfig config =New Matrixtoimageconfig(0xff000000,0xFFFFFFFF); Matrixtoimagewriter.Writetopath(Matrix, format, path, config);//output as file Stream (Web project)            //OutputStream stream = Response.getoutputstream ();            //Matrixtoimagewriter.writetostream (Matrix, Format, stream,config);System. out.println("Debug output: OK"); }Catch(Writerexception | IOException e) {e.Printstacktrace(); }    }/*** Two-dimensional code analysis     *      * @param inpath* QR code image address     * @returnTwo-dimensional code text content     */     Public StaticStringQrcodeparse(String Inpath) {//File detection        if(!NewFile (Inpath).exists()) {System. out.println("file does not exist:"+ Inpath);return NULL; The String content ="";Try{//Read picturesBufferedImage image = ImageIO.Read(NewFile (Inpath));//Extract picture pixelsLuminancesource Source =New Bufferedimageluminancesource(image);//Two value (set grayscale to 0 or 255)Binarizer Binarizer =New Hybridbinarizer(source);//Convert to binary pictureBinarybitmap Binarybitmap =New Binarybitmap(Binarizer);//Related configurationMap<decodehinttype, object> hints =NewHashmap<decodehinttype, object> (); Hints.put(Decodehinttype.Character_set,"UTF-8");//parsingResult result =New Multiformatreader().Decode(Binarybitmap, hints);//decode the image            //Get textContent = result.GetText();//Output barcode type (I use the QR code, so will output Qr_code)System. out.println(result.)Getbarcodeformat()); }Catch(IOException | Notfoundexception e) {e.Printstacktrace(); }returnContent }/**** One-dimensional code generation     *      * @param content* Text     * @param outpath* Output Directory     * @param outname* Output File name     * @param format* file Format     * @param width* Create image width     * @param height* Create picture height     */     Public Static void Barcodebuild(string content, String Outpath, String outname, string format,intWidthintHeight) {//File detection        if(!NewFile (Outpath).exists()) {NewFile (Outpath).mkdirs(); } Path Path = filesystems.Getdefault().GetPath(Outpath, outname);Try{Code128writer writer =New Code128writer(); Bitmatrix matrix = writer.encode(Content, Barcodeformat.code_128, width, height); Matrixtoimagewriter.Writetopath(Matrix, format, path); System. out.println("Debug output: OK"); }Catch(Writerexception | IOException e) {e.Printstacktrace(); }    }}

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Javaweb Two-dimensional code