Java Picture Conversion Tool

 Packagecom.sicdt.sicsign.web.utils;ImportJava.awt.image.BufferedImage;ImportJava.io.ByteArrayInputStream;ImportJava.io.ByteArrayOutputStream;ImportJava.io.File;Importjava.io.FileNotFoundException;Importjava.io.IOException;ImportJavax.imageio.ImageIO;Importorg.apache.commons.io.FileUtils;Importcom.itextpdf.text.Document;Importcom.itextpdf.text.DocumentException;ImportCom.itextpdf.text.Image;Importcom.itextpdf.text.PageSize;ImportCom.itextpdf.text.pdf.PdfWriter; Public classMyimgutil {/*** <br> Description: Convert picture BASE64 string to binary array * <br> Author: seven Pulse *@parambase64 New Image (); Img.src or Canvas.todataurl ("Image/png") *@return     * @throwsIOException*/     Public Static byte[] imgbase64tobytes (String base64) {Sun.misc.BASE64Decoder decoder=NewSun.misc.BASE64Decoder (); //because the parameter base64 source is different, the attachment data replacement needs to be emptied out. If this entry comes from Canvas.todataurl ("Image/png");Base64 = Base64.replaceall ("Data:image/png;base64,", "" "); //base64 decoding and converting to a binary array        byte[] bytes =NULL; Try{bytes=Decoder.decodebuffer (base64);  for(inti = 0; i < bytes.length; ++i) {if(Bytes[i] < 0) {//Adjust Exception DataBytes[i] + = 256; }            }        } Catch(IOException e) {e.printstacktrace (); }        returnbytes; }        /*** <br> Description: Image/File to binary array, this method has many, write only one * <br> Author: seven Pulse *@paramimgpath Picture Path *@return     * @throwsFileNotFoundException*/     Public Static byte[] imgtobytes (String imgpath) {File file=NewFile (Imgpath); BufferedImage Bi=NULL; Bytearrayoutputstream BAOs=NULL; Try {            //files using other toolsBI =imageio.read (file); BAOs=NewBytearrayoutputstream (); intindex = Imgpath.lastindexof (".")); String format= Imgpath.substring (index+1);            Imageio.write (BI, format, BAOs); byte[] bytes =Baos.tobytearray ();            Baos.close (); returnbytes; } Catch(IOException e) {e.printstacktrace (); }        return NULL; }        /*** <br> Description: Convert binary to Picture * <br> Author: seven Pulse *@paramOutpath where to export the picture *@paramSavepath Save Location*/     Public Static voidBytestoimg (byte[] bytes,string Savepath) {Bytearrayinputstream BAOs=Newbytearrayinputstream (bytes); Try{bufferedimage bi=Imageio.read (BAOs); File File=NewFile (Savepath); Imageio.write (BI,"PNG", file);        Baos.close (); } Catch(IOException e) {//TODO auto-generated Catch blockE.printstacktrace (); }    }        /*** <br> Description: Picture binary array to PDF binary array * <br> Author: seven Pulse *@paramimgbytes Binary array of images *@return     */     Public Static byte[] Imgbytestopdfbytes (byte[] imgbytes) {            byte[] bytes =NULL; Document Document=NewDocument (); Bytearrayoutputstream BAOs=NewBytearrayoutputstream (); Try{pdfwriter.getinstance (document, BAOs); //set the size of a documentdocument.setpagesize (PAGESIZE.A4); //Open DocumentDocument.open (); //read a pictureImage image =image.getinstance (imgbytes); floatImageWidth =image.getscaledwidth (); inti = 0;  while(ImageWidth > 600) {image.scalepercent (100-i); I++; ImageWidth=image.getscaledwidth ();                } image.setalignment (Image.align_center); //Insert a pictureDocument.add (image); //go to binary arraybytes =Baos.tobytearray (); returnbytes; } Catch(documentexception e) {e.printstacktrace (); } Catch(IOException e) {e.printstacktrace (); } finally {                if(NULL!=BAOs) {                    Try{baos.close (); } Catch(IOException e) {e.printstacktrace (); }                }                if(NULL!=document)                {Document.close (); }            }            returnbytes; }            /*** <br> Description: Binary to file, what binary to what kind of file * <br> Author: seven Pulse *@parambytes Binary array *@paramSavepath File Save path*/     Public Static voidBytearraytofile (byte[] bytes,string Savepath) {        Try{fileutils.writebytearraytofile (NewFile (Savepath), bytes); } Catch(IOException e) {e.printstacktrace (); }    }         Public Static voidMain (string[] args)throwsIOException {//bytestoimg (Imgtobyte ("C://Users//Administrator//Desktop//test.png ")," C://Users//Administrator//Desktop//bytes2img.png ");Bytearraytofile (Imgtobyte ("C://users//administrator//desktop//test.png"), "c://users//administrator//desktop// Test2.png "); }}

Java Picture Conversion Tool