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Ajax uploads images and previews

Source: Internet
Author: User
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1. Directly on the simplest kind of Ajax upload images asynchronously and preview

Html:

1 <!DOCTYPE HTML>2 <HTML>3 <Head>4 <Metahttp-equiv= "Content-type"content= "text/html; charset=utf-8">5 <title>Image Upload | Cookies</title>6 </Head>7 <Body>8File<inputtype= "File"ID= "Images"name= "image" /><BR><BR>9Desc<inputtype= "text"ID= "desc"name= "desc" /><BR><BR>Ten     <inputtype= "button"value= "Upload"onclick= "upload ();"> One      A     <Divclass= "Images"></Div> -      - <Scripttype= "Text/javascript"src= "Js/jquery-1.12.4.min.js"></Script> the <Scripttype= "Text/javascript"src= "Js/upload.js"></Script> - <Scripttype= "Text/javascript"> -     functionupload () { - $.ajaxfileupload ({ + URL:'upload.htm', - Fileelementid:'Images', + DataType:'JSON', A data: {desc: $ ("#desc"). Val ()}, at Success:function(data) { -                 varHTML= $(". Images"). html (); - HTML+= ' "' +Data.url+ '">' -                 $(". Images"). HTML (HTML); -             } -         }) in         return false; -     } to </Script> + </Body> - </HTML>

Servlet:

1 protected voidDoPost (httpservletrequest request, httpservletresponse response)2             throwsservletexception, IOException {3Diskfileitemfactory factory =Newdiskfileitemfactory ();4         5Servletfileupload upload =Newservletfileupload (factory);6         7String path = Request.getservletcontext (). Getrealpath ("/upload");8String name =NULL;9         Try {Tenlist<fileitem> items =upload.parserequest (request); One              for(Fileitem item:items) { A                 if(Item.isformfield ()) { -System.out.println (Item.getfieldname () + ":" +item.getstring ()); -}Else { theName =item.getname (); -Item.write (NewFile (Path,name)); -                 } -             } +PrintWriter out =Response.getwriter (); -Out.print ("{"); +Out.print ("url:\" "+ name +" \ ""); AOut.print ("}"); at              -}Catch(Exception e) { - e.printstacktrace (); -         } -}

3. Here will use a ajaxupload.js, online much more, really can't find, also can private me, to you

Ajax uploads images and previews

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