Solved

Urgent

Posted on 2008-10-14
3
616 Views
Last Modified: 2012-08-13
I am taking ImageSnapshot of the flex component, i am sending this object to jsp page, I have to save this  object using request.setContectType(JPEG) on client  (Browser) location also client will able open it using jsp. attached code is the sample example which I did with flex. from flex i am sending this IImageSanpShot object to jsp. please let me know how will i write a jsp to save this image in JPEG format. I need JSP code, to receive this IimageSnapshot object. Can any body provide me sample jsp  file for this?
<?xml version="1.0" encoding="utf-8"?>
<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml" layout="absolute">
	
	<mx:Script>
		<![CDATA[
			import mx.graphics.codec.IImageEncoder;
			import mx.controls.Image;
			import mx.graphics.ImageSnapshot;
			import mx.controls.Alert;
			import mx.rpc.events.FaultEvent;
			import mx.graphics.codec.JPEGEncoder;
			
			[Bindable]
			private var buttonsEnabled : Boolean = true;
			[Bindable]
			private var imgData:Object;
			
			private function grabScreen() : Object
			{
				
				return ImageSnapshot.captureImage( chartsContainer, 0, JPEGEncoder as IImageEncoder  ) as Object;
			}
			
		private function exportImageToJPG() : void
			{
				
				buttonsEnabled = false;
				imgData = grabScreen();
				Alert.show("Sending imgData :->"+imgData.toString());
				httpService.send({"imgData":imgData});
			}
			
			
			private function onResult( message : String ) : void
			{
				
				Alert.show(message);
				buttonsEnabled = true;
			}
			
			private function onFault( event : FaultEvent ) : void
			{
				Alert.show("Server Fault: " + event.message);
				buttonsEnabled = true;
			}
			
		]]> 
	</mx:Script>
	
	<mx:Model id="data" source="sampleData.xml"/>
	
	
		
	<mx:HTTPService id="httpService" 
    	url="http://localhost:8080/export/SampleExport.jsp"
		result="onResult('Charts saved as JPG.')" method="POST" 
		resultFormat="object"
		fault="onFault(event)">
	
	</mx:HTTPService>
	<mx:Panel 
		title="Flex Charts Example for Screen Export"
		width="688" height="456" 
		layout="absolute"  
		horizontalCenter="0" 
		verticalCenter="0">
	
		<mx:Canvas width="100%" height="250" id="chartsContainer">
			
			<mx:HLOCChart 
				x="10" y="10" 
				id="hlocchart1" 
				dataProvider="{ data.item }" 
				width="320" height="240">
				
				<mx:series>
					<mx:HLOCSeries 
						openField="open" 
						closeField="close" 
						highField="high" 
						lowField="low"/>
				</mx:series>
			</mx:HLOCChart>
			
			<mx:PieChart 
				x="338" y="10" 
				id="piechart1" 
				dataProvider="{ data.item }" 
				width="320" height="240" >
				
				<mx:series>
					<mx:PieSeries 
						field="open" 
						labelPosition="inside" />
				</mx:series>
			</mx:PieChart>
			
		</mx:Canvas>
		
		<mx:DataGrid
			x="10" y="258" 
			width="648" height="118" 
			dataProvider="{ data.item }" />
	
		<mx:Button label="Export to Image" click="exportImageToJPG()" enabled="{ buttonsEnabled }"  x="10" y="384"/>
		
	</mx:Panel>
</mx:Application>

Open in new window

0
Comment
Question by:ASHISHRAIK11
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
3 Comments
 
LVL 23

Accepted Solution

by:
Siva Prasanna Kumar earned 500 total points
ID: 22711506
Your JSP sample code should look like this

<%@page import="java.io.*"%>
<%
String filename = "xyz.jpg";
String path = new String();

try {
ServletContext sc = this.getServletContext();
path = sc.getRealPath("/");
FileOutputStream fos = new FileOutputStream(path +"\\" + filename);
ServletInputStream instream = request.getInputStream();
int i=0;

while(i!=-1)
{
i=instream.read();
fos.write(i);
}
System.out.println("Created " + filename + " in " + path);
} catch (Exception e) {
out.println(e.printStackTrace());
}

%>

let me know if their are any issues.
0
 
LVL 19

Expert Comment

by:Gary Benade
ID: 22902306
please provide feedback or accept the answer above
0

Featured Post

Instantly Create Instructional Tutorials

Contextual Guidance at the moment of need helps your employees adopt to new software or processes instantly. Boost knowledge retention and employee engagement step-by-step with one easy solution.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article shows a few slightly more advanced techniques for Windows 7 gadget programming, including how to save and restore user settings for your gadget and how to populate the "details" panel that is displayed in the Windows 7 gadget gallery.  …
As more and more people are shifting to the latest .Net frameworks, the windows presentation framework is gaining importance by the day. Many people are now turning to WPF controls to provide a rich user experience. I have been using WPF controls fo…
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
This is a high-level webinar that covers the history of enterprise open source database use. It addresses both the advantages companies see in using open source database technologies, as well as the fears and reservations they might have. In this…

696 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question