java - Inseting/Updating image to SQL Server database by reading from a directory -


i trying insert/update image(or blob) table , column has data type image in sql server 2012. source file directory has images , named according primary key of table. need read files selecting directory , bulk insert/update table respective rows. if possible please suggest example in primefaces dialog box select directory.

my code single file upload :

private byte[] resizeimage(byte[] imgbytes) { bufferedimage originalimage = null; try { bytearrayinputstream = new bytearrayinputstream(imgbytes); system.out.println("file size before resize "+is.available()); originalimage = imageio.read(is); } catch (ioexception e) { e.printstacktrace(); } int type = originalimage.gettype() == 0 ? bufferedimage.type_int_argb : originalimage.gettype();  bufferedimage resizedimage = new bufferedimage(192, 192, type);//set width , height of image graphics2d g = resizedimage.creategraphics(); g.drawimage(originalimage, 0, 0, 192, 192, null); g.dispose();  // bufferedimage bytearrayinputstream bytearrayoutputstream os = new bytearrayoutputstream(); try { imageio.write(resizedimage, "jpg", os); } catch (ioexception e) { // todo auto-generated catch block e.printstacktrace(); } system.out.println("file size after resize "+os.size()); return os.tobytearray(); }

and have :

public void upload(fileuploadevent event) {   try { if (validateimage(event.getfile())) { memberimage = new defaultstreamedcontent(event.getfile().getinputstream(), "image/jpeg"); memberinformationmodel.setphoto(resizeimage(event.getfile().getcontents())); } } catch (ioexception e1) { e1.printstacktrace(); } }   public boolean validateimage(uploadedfile file) { if (!(file.getcontenttype().startswith("image"))) { displayerrormessagetouser("file not image file"); //system.out.println("file not image file"); return false; } long filebyte = file.getcontents().length; if(filebyte > 102400){ //system.out.println("file size big (must @ 1mb)\n"); displayerrormessagetouser("file size big (must @ 100kb)\n"); return false; } return true; }

the above code file upload in primefaces. , saving part handled jpa/eclipselink.


Comments

Post a Comment

Popular posts from this blog

javascript - Using jquery append to add option values into a select element not working -

i'm looking dynamically populate select element names of items stored array. for reason it's not working , i'm not sure why. html: <div class="col-md-4 col-md-offset-4"> <select class="select1"> </select> , <select class="select2"> </select> </div> note i'm using bootstrap layout. here's jquery i'm using try , populate ".select1" jquery: select: function() { $.each(state.greens, function(index, value) { $(".select1").append("<option value =' " + index + " '>" + state.greens[index].name + "</option>"); }); } note function 'select' stored within object called 'display'. state.greens name of array i'm trying access. so @ end of html page call display.select(); call function. no error messages showing in console. also, saw question: appending
Read more

Android soft keyboard reverts to default keyboard on orientation change -

i'm building android soft keyboard , can't seem fix bug - have arabic , qwerty keyboard , when rotate device on qwerty keyboard (or arabic shift), it's if program has "restarted" , becomes arabic keyboard without shift. the onsaveinstancestate(bundle savedinstancestate) not work because application not extend activity inputmethodservice . i put following in android manifest android:configchanges="keyboard|keyboardhidden|orientation" android:windowsoftinputmode="stateunchanged|adjustresize"> i tried using @override public void onconfigurationchanged(configuration newconfig) { super.onconfigurationchanged(newconfig); log.i(mydebug, "config changed " + currentkeyboard.equals(qwerty)); } however, currentkeyboard.equals(qwerty)) results false , made sure true before orientation change. any appreciated. i think applications fault. if application restarting on orientation change
Read more

jquery - javascript onscroll fade same class but with different div -

i new @ javascript , want learn new. there wrong code : why div fades @ same time. i want ask how fade different div s same class name.can me , explain me. thanks in advance. javascript: $(window).scroll(function(){ if ($( "div.fade" ).offset().top - $(window).scrolltop() <= 100){ $('.fade').addclass( "fade-in"); } else { $('.fade').removeclass("fade-in"); } }); here jsfiddle onscroll = function () { var scrolltop = $(this).scrolltop() ; $("div.fade").each(function(){ if(($(this).offset().top - scrolltop) <= 100){ $(this).toggleclass("fade-in"); } }) }
Read more