QR code generation Tool Class Java edition

Note: Here I do not provide the path of the required jar package, I will display all the referenced jar packages, Google

 PackageCom.net.util;ImportJava.awt.BasicStroke;ImportJava.awt.Graphics;ImportJava.awt.Graphics2D;ImportJava.awt.Image;ImportJava.awt.Shape;ImportJava.awt.geom.RoundRectangle2D;ImportJava.awt.image.BufferedImage;ImportJava.io.File;ImportJava.io.OutputStream;Importjava.util.Hashtable;ImportJava.util.Random;ImportJavax.imageio.ImageIO;ImportCom.google.zxing.BarcodeFormat;ImportCom.google.zxing.BinaryBitmap;ImportCom.google.zxing.DecodeHintType;ImportCom.google.zxing.EncodeHintType;ImportCom.google.zxing.MultiFormatReader;ImportCom.google.zxing.MultiFormatWriter;ImportCom.google.zxing.Result;ImportCom.google.zxing.common.BitMatrix;ImportCom.google.zxing.common.HybridBinarizer;ImportCom.google.zxing.qrcode.decoder.ErrorCorrectionLevel;/******************************************************************************** * Description: Two-dimensional code making tool class *@authorZhangdi *@version1.0*/ Public classQrcodeutil {Private Static FinalString CHARSET = "Utf-8"; Private Static FinalString format_name = "JPG"; //Two-dimensional code size    Private Static Final intQrcode_size = 300; //logo Width    Private Static Final intWIDTH = 60; //Logo Height    Private Static Final intHEIGHT = 60; /*** Generate QR Code *@paramContent Source Contents *@paramImgpath generate QR Code save path *@paramneedcompress If you want to compress *@returnreturn QR code image *@throwsException*/      Private StaticBufferedImage createimage (string content, String Imgpath,Booleanneedcompress)throwsException {Hashtable hints=NewHashtable ();          Hints.put (Encodehinttype.error_correction, ErrorCorrectionLevel.H);          Hints.put (Encodehinttype.character_set, CHARSET); Hints.put (Encodehinttype.margin,1); Bitmatrix Bitmatrix=NewMultiformatwriter (). Encode (content, Barcodeformat.qr_code, qrcode_size, qrcode_size, hints); intwidth =bitmatrix.getwidth (); intHeight =bitmatrix.getheight (); BufferedImage Image=Newbufferedimage (width, height, bufferedimage.type_int_rgb);  for(intx = 0; x < width; X + +) {               for(inty = 0; Y < height; y++) {Image.setrgb (x, Y, Bitmatrix.get (x, y)? 0xff000000:0xffffffff); }          }          if(Imgpath = =NULL|| "". Equals (Imgpath)) {              returnimage; }          //Insert Pictureqrcodeutil.insertimage (image, Imgpath, needcompress); returnimage; }        /*** Insert a picture in the generated QR code *@paramSource *@paramImgpath *@paramneedcompress *@throwsException*/      Private Static voidInsertimage (bufferedimage source, String Imgpath,Booleanneedcompress)throwsException {File file=NewFile (Imgpath); if(!file.exists ()) {System.err.println ("+ Imgpath +" The file does not exist! "); return; } Image src= Imageio.read (NewFile (Imgpath)); intwidth = src.getwidth (NULL); intHeight = src.getheight (NULL); if(needcompress) {//Compression logo            if(Width >WIDTH) {Width=WIDTH; }              if(Height >HEIGHT) {Height=HEIGHT; } Image Image=src.getscaledinstance (width, height, image.scale_smooth); BufferedImage Tag=Newbufferedimage (width, height, bufferedimage.type_int_rgb); Graphics g=Tag.getgraphics (); G.drawimage (Image,0, 0,NULL);//draw a zoomed-out diagramG.dispose (); SRC=image; }          //Insert LogoGraphics2D graph =Source.creategraphics (); intx = (qrcode_size-width)/2; inty = (qrcode_size-height)/2; Graph.drawimage (src, x, y, width, height,NULL); Shape Shape=NewRoundrectangle2d.float (x, y, Width, width, 6, 6); Graph.setstroke (NewBasicstroke (3f));          Graph.draw (Shape);      Graph.dispose (); }        /*** Create a QR code with logo and save to disk *@paramcontent *@paramImgpath logo image *@paramDestPath *@paramneedcompress *@throwsException*/       Public Staticstring encode (string content, String Imgpath, String destpath,Booleanneedcompress)throwsException {bufferedimage image=qrcodeutil.createimage (content, Imgpath, needcompress);          Mkdirs (DestPath); String file=NewRandom (). Nextint (99999999) + ". jpg";//generate random file namesImageio.write (image, Format_name,NewFile (DestPath + "/" +file)); returnfile; }         Public Static voidmkdirs (String destpath) {File file=NewFile (DestPath); //when a folder does not exist, Mkdirs automatically creates a multi-tiered directory, distinguished from mkdir. (MkDir throws an exception if the parent directory does not exist)        if(!file.exists () &&!file.isdirectory ())          {File.mkdirs (); }      }         Public Static voidEncode (string content, String Imgpath, String destpath)throwsException {qrcodeutil.encode (content, Imgpath, DestPath,false); }         Public Static voidEncode (string content, String destpath,Booleanneedcompress)throwsException {qrcodeutil.encode (content,NULL, DestPath, needcompress); }         Public Static voidEncode (string content, String destpath)throwsException {qrcodeutil.encode (content,NULL, DestPath,false); }         Public Static voidEncode (string content, String Imgpath, OutputStream output,Booleanneedcompress)throwsException {bufferedimage image=qrcodeutil.createimage (content, Imgpath, needcompress);      Imageio.write (image, format_name, output); }         Public Static voidEncode (String content, outputstream output)throwsException {qrcodeutil.encode (content,NULL, Output,false); }              /*** from the QR code, parse the data *@paramfile QR code picture files *@returnreturns the data value parsed from the QR code *@throwsException*/       Public StaticString decode (file file)throwsException {bufferedimage image; Image=imageio.read (file); if(Image = =NULL) {              return NULL; } Bufferedimageluminancesource Source=NewBufferedimageluminancesource (image); Binarybitmap Bitmap=NewBinarybitmap (NewHybridbinarizer (source));          result result; Hashtable hints=NewHashtable ();          Hints.put (Decodehinttype.character_set, CHARSET); Result=NewMultiformatreader (). Decode (bitmap, hints); String ResultStr=Result.gettext (); returnResultStr; }         Public StaticString decode (String path)throwsException {returnQrcodeutil.decode (NewFile (path)); }  //try {////String Text = "Http://weifeng.nethangzhou.com/wf/weixin/getUserInfoCode"; //String Text = "http://www.lechuan100.com/plugin.php?id=haven_article&mod=my&aid=21 "; ////Create a QR code with logo////Qrcodeutil.encode (text, "D:/730.png", "D:/wfqrcode", true);////Create a QR code with no logo//Qrcodeutil.encode (Text, "", "D:/wfqrcode", true); //////Specify a QR code image to parse the return data////System.out.println (Qrcodeutil.decode ("d:/wps/75040887.jpg")); //} catch (Exception e) {//e.printstacktrace ();//}  }

QR code generation Tool Class Java edition