accessing an image outside my webapp
I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
You'll probably want an action that gets the image and then streams it
to the html:img tag or c:url
html:img page=/image.do /
This way you wont be confined to the webapp.
e.g
response.setContentType(image/jpeg);
response.setHeader(Cache-Control, no-cache);
OutputStream ou = response.getOutputStream();
String imageStr = /path to image;
java.net.URI imgUri = new java.net.URI(imageStr);
File imageFile = new File(imgUri);
RandomAccessFile raf = new RandomAccessFile( imageFile, r );
FileInputStream imageFileStream = new FileInputStream(imageFile);
byte[] image = new byte[(int) imageFile.length()];
while ( (raf.read( image )) 0 ){
ou.write( image );
}
ou.flush();
ou.close();
return null;
map the action
action path=/image type=com.sparrow.struts.ImageAction /
On 15 Jan 2004, at 14:34, Alain Van Vyve wrote:
I have a JSP where I would like to show an image located outside my
webapp (e.g. in a c:\photo directory) ...
How to do that with the html:img Struts tag ??
Thanks
Alain
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RE: accessing an image outside my webapp
seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: accessing an image outside my webapp
I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
that makes a bit more sense now, so my original suggestion wasn't just the crack talking then :) On 15 Jan 2004, at 15:25, Robert Nocera wrote: I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: accessing an image outside my webapp
Actually Martin, if the link is file:///test.jpg, as in the message, it isn't a relative request. If it was just /test.jpg it would be relative to the context of the web-app, but it's not. -Rob -Original Message- From: Martin Gainty [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:29 AM To: Struts Users Mailing List; [EMAIL PROTECTED] Subject: Re: accessing an image outside my webapp Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
I think robert it right, i've just tested it too. And i don't think that anyone is confused between absolute and relative addressing. http://www.peevish.co.uk/slang/c.htm see chocolate fireguard On 15 Jan 2004, at 15:28, Martin Gainty wrote: Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
I think It is an intersting debate about relative versus absolute addressing ... but I'm not relatively but absolutely lost ... Here is my jsp source ... What do I have to change ? Thanks td img src='bean:write name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' alt='bean:write name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' border=0 /td At 15:44 15/01/2004 +, you wrote: I think robert it right, i've just tested it too. And i don't think that anyone is confused between absolute and relative addressing. http://www.peevish.co.uk/slang/c.htm see chocolate fireguard On 15 Jan 2004, at 15:28, Martin Gainty wrote: Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
Have an action that write the image to the response
response.setContentType(image/jpeg);
response.setHeader(Cache-Control, no-cache);
OutputStream ou = response.getOutputStream();
String imageStr = /path to image;
java.net.URI imgUri = new java.net.URI(imageStr);
File imageFile = new File(imgUri);
RandomAccessFile raf = new RandomAccessFile( imageFile, r );
FileInputStream imageFileStream = new FileInputStream(imageFile);
byte[] image = new byte[(int) imageFile.length()];
while ( (raf.read( image )) 0 ){
ou.write( image );
}
ou.flush();
ou.close();
return null;
//map the action
action path=/image type=com.sparrow.struts.ImageAction /
//
call the action
html:img page=/image.do /
On 15 Jan 2004, at 15:45, Alain Van Vyve wrote:
I think It is an intersting debate about relative versus absolute
addressing ...
but I'm not relatively but absolutely lost ...
Here is my jsp source ...
What do I have to change ?
Thanks
td
img src='bean:write
name=HotelListForm
property='%= hotelList.hotel[ + i +
].urlPhoto %' /'
alt='bean:write
name=HotelListForm
property='%= hotelList.hotel[ + i +
].urlPhoto %' /'
border=0
/td
At 15:44 15/01/2004 +, you wrote:
I think robert it right, i've just tested it too. And i don't think
that anyone is confused between absolute and relative addressing.
http://www.peevish.co.uk/slang/c.htm
see chocolate fireguard
On 15 Jan 2004, at 15:28, Martin Gainty wrote:
Robert
The client browser is making a request to a webserver using a
relative
address I think it would be best to understand the difference
between
relative addressing and absolute addressing
I invite you to read
http://www.drizzle.com/~slmndr/tutorial/relabs.html
-Martin
- Original Message -
From: Robert Nocera [EMAIL PROTECTED]
To: 'Struts Users Mailing List' [EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:25 AM
Subject: RE: accessing an image outside my webapp
I don't think Tomcat does, but your local browser will. You are
sending
your browser a link that tells it to load a file on your file
system. It
will work fine if you are only running locally, but it won't work
if you
try
to access that link from a browser on another machine unless that
machine
also has the same file locally.
-Rob
-Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM
To: Struts Users Mailing List
Subject: Re: accessing an image outside my webapp
by jingo. it only works!!
just src rather than href
html:img src=file:///test.jpg /
I thought tomcat wouldn't have access to anything outside the
webapp.
On 15 Jan 2004, at 15:03, Richard Hightower wrote:
seems like an odd request... but here goes...
html:img href=file://c:/photo directory/foo.gif/
html:img supports three attributes for specifyin the location of an
image
forward (referes to a global forward), page (relative to the
current
web
context), and href (any valid URL).
Rick Hightower
Developer
Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm
Struts/J2EE consulting --
http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message-
From: Alain Van Vyve [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 7:35 AM
To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp
I have a JSP where I would like to show an image located outside my
webapp
(e.g. in a c:\photo directory) ...
How to do that with the html:img Struts tag ??
Thanks
Alain
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RE: accessing an image outside my webapp
You can do this so long as the parameter expects an output stream of some sort. How that stream gets there is of no consequence, so long as whatever you use as the src etc. is sufficient to tell the server what to send back. You can give a standard server URL and trust in the server to provide what the client needs or you can use something like: GetResource.do?file_type=giffile_name=some.gif with the appropriate class to get an output stream from the response object and return the data with the correct content type. I only return data this way, except with Applets, which are all screwed up. That way the organization of resources on the server is completely dark to the view, except for Applets, which are all screwed up. (Applets bifurcate the file and codebase names, making sensible organization impossible. Anyone interested in this solution is invited to ask for it from me. At 07:25 AM 1/15/2004, Robert Nocera wrote: I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
that assumes you are not working with jsp anymore for that page ...
I cannot do that because my page contains a lot of other things
...
Do you think it is possible to integrate that code in my jsp page
?
At 15:59 15/01/2004 +, you wrote:
Have an action that write the image
to the response
response.setContentType(image/jpeg);
response.setHeader(Cache-Control,
no-cache);
OutputStream ou = response.getOutputStream();
String imageStr = /path to image;
java.net.URI imgUri = new java.net.URI(imageStr);
File imageFile = new File(imgUri);
RandomAccessFile raf = new RandomAccessFile( imageFile, r
);
FileInputStream imageFileStream = new FileInputStream(imageFile);
byte[] image = new byte[(int) imageFile.length()];
while ( (raf.read( image )) 0 ){
ou.write(
image );
}
ou.flush();
ou.close();
return null;
//map the action
action path=/image
type=com.sparrow.struts.ImageAction /
//
call the action
On 15 Jan 2004, at 15:45, Alain Van Vyve wrote: I think It is an
intersting debate about relative versus absolute addressing ...
but I'm not relatively but absolutely lost ... Here is my jsp source
... What do I have to change ? Thanks
name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' alt=' name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' border=0 At 15:44 15/01/2004 +, you wrote: I think robert it right, i've just tested it too. And i don't think that anyone is confused between absolute and relative addressing. http://www.peevish.co.uk/slang/c.htm see chocolate fireguard On 15 Jan 2004, at 15:28, Martin Gainty wrote: Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera To: 'Struts Users Mailing List' Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webappI don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href I thought tomcat wouldn't have access to anything outside the webapp.On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED]] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the Struts tag ?? Thanks Alain--- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]--- -- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
??
I'm not sure what you mean, you don't forward with this action just
return null. You can pass what you need as parameters, I just gave you
an example with the perhaps naive expectation that you might work the
rest out.
On 15 Jan 2004, at 16:42, Alain Van Vyve wrote:
that assumes you are not working with jsp anymore for that page ...
I cannot do that because my page contains a lot of other things ...
Do you think it is possible to integrate that code in my jsp page ?
At 15:59 15/01/2004 +, you wrote:
Have an action that write the image to the response
response.setContentType(image/jpeg);
response.setHeader(Cache-Control, no-cache);
OutputStream ou = response.getOutputStream();
String imageStr = /path to image;
java.net.URI imgUri = new java.net.URI(imageStr);
File imageFile = new File(imgUri);
RandomAccessFile raf = new RandomAccessFile( imageFile, r );
FileInputStream imageFileStream = new FileInputStream(imageFile);
byte[] image = new byte[(int) imageFile.length()];
while ( (raf.read( image )) 0 ){
ou.write( image );
}
ou.flush();
ou.close();
return null;
//map the action
action path=/image type=com.sparrow.struts.ImageAction /
//
call the action
On 15 Jan 2004, at 15:45, Alain Van Vyve wrote: I think It is an
intersting debate about relative versus absolute addressing ...
but I'm not relatively but absolutely lost ... Here is my jsp source
... What do I have to change ? Thanks
image.tiffname=HotelListForm property='%= hotelList.hotel[ +
i + ].urlPhoto %' /' alt=' name=HotelListForm
property='%= hotelList.hotel[ + i + ].urlPhoto %' /'
border=0 At 15:44 15/01/2004 +, you wrote: I think
robert it right, i've just tested it too. And i don't think that
anyone is confused between absolute and relative addressing.
http://www.peevish.co.uk/slang/c.htm see chocolate fireguard
On 15 Jan 2004, at 15:28, Martin Gainty wrote: Robert
The client browser is making a request to a webserver using a
relative address I think it would be best to understand the
difference between relative addressing and absolute
addressing I invite you to read
http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin
- Original Message - From: Robert Nocera To:
'Struts Users Mailing List' Sent: Thursday, January 15, 2004
10:25 AM Subject: RE: accessing an image outside my webapp
I don't think Tomcat does, but your local browser will. You are
sending your browser a link that tells it to load a file on
your file system. It will work fine if you are only running
locally, but it won't work if you try to access that
link from a browser on another machine unless that machine
also has the same file locally. -Rob -Original
Message- From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users
Mailing List Subject: Re: accessing an image outside my webapp
by jingo. it only works!! just src rather than
href I thought tomcat wouldn't have access to
anything outside the webapp.On 15 Jan 2004, at
15:03, Richard Hightower wrote: seems like an odd
request... but here goes... html:img supports
three attributes for specifyin the location of an image
forward (referes to a global forward), page (relative to the
current web context), and href (any valid URL).
Rick Hightower Developer Struts/J2EE training
--http://www.arc-mind.com/strutsCourse.htm Struts/J2EE
consulting --
http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message- From: Alain Van Vyve
[mailto:[EMAIL PROTECTED] Sent: Thursday,
January 15, 2004 7:35 AM To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp
I have a JSP where I would like to show an image located outside
my webapp (e.g. in a c:\photo directory) ...
How to do that with the Struts tag ?? Thanks
Alain
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Re: accessing an image outside my webapp
This is not quite right. The only thing you have to do is to give the
server whatever it needs to retrieve the data. This can be a relative or
absolute url or a protocol you develop on your own. The idea is that you
have to tell the server what to do. That will depend on your set up. My
site uses src='RESOURCE.MICHAELMcGRADY?file_type=[some mime or defined
type, e.g. gif, jpeg, css]file_name=[name of the file, not fully
qualified]' to return resources, including Flash in the object tag.
The general solution is to create or obey some protocol which tells the
server to return the appropriate output stream to the response object. My
basic class, without the utility/helper classes is:
public final class ActionResource
extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException,
ServletException {
new Facade().handle(request, response);
return null;
}
}
The Facade class is as follows:
public class Facade
implements FacadeIF {
public Facade() {
super();
}
public void handle(HttpServletRequest request,
HttpServletResponse response) {
new WriteResponse().write(new InitResponse().init(request, response),
response);
return;
}
}
The key is that you use the response object to get the output stream and
return a null after writing the object in the response. This is set up on
my system so that the GUI people just have to indicate the type and the
name of their resource. They need know nothing else and all the crap
about how to locate and to return images, which is always arising, is
completely avoided. Cool, eh?
At 07:34 AM 1/15/2004, you wrote:
that makes a bit more sense now, so my original suggestion wasn't just the
crack talking then :)
On 15 Jan 2004, at 15:25, Robert Nocera wrote:
I don't think Tomcat does, but your local browser will. You are sending
your browser a link that tells it to load a file on your file system.
It
will work fine if you are only running locally, but it won't work if you try
to access that link from a browser on another machine unless that machine
also has the same file locally.
-Rob
-Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM
To: Struts Users Mailing List
Subject: Re: accessing an image outside my webapp
by jingo. it only works!!
just src rather than href
html:img src=file:///test.jpg /
I thought tomcat wouldn't have access to anything outside the webapp.
On 15 Jan 2004, at 15:03, Richard Hightower wrote:
seems like an odd request... but here goes...
html:img href=file://c:/photo directory/foo.gif/
html:img supports three attributes for specifyin the location of an
image
forward (referes to a global forward), page (relative to the current
web
context), and href (any valid URL).
Rick Hightower
Developer
Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm
Struts/J2EE consulting --
http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message-
From: Alain Van Vyve [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 7:35 AM
To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp
I have a JSP where I would like to show an image located outside my
webapp
(e.g. in a c:\photo directory) ...
How to do that with the html:img Struts tag ??
Thanks
Alain
-
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Re: accessing an image outside my webapp
The issue, again, is not about absolute versus relative addressing. The issue is whether you are giving the server the information it needs to return the resource. That can be accomplished in innumerable ways. At 07:45 AM 1/15/2004, Alain Van Vyve wrote: I think It is an intersting debate about relative versus absolute addressing ... but I'm not relatively but absolutely lost ... Here is my jsp source ... What do I have to change ? Thanks td img src='bean:write name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' alt='bean:write name=HotelListForm property='%= hotelList.hotel[ + i + ].urlPhoto %' /' border=0 /td At 15:44 15/01/2004 +, you wrote: I think robert it right, i've just tested it too. And i don't think that anyone is confused between absolute and relative addressing. http://www.peevish.co.uk/slang/c.htm see chocolate fireguard On 15 Jan 2004, at 15:28, Martin Gainty wrote: Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
RE: accessing an image outside my webapp
The truth is that relative and absolute are not that helpful. The thing to understand is that there are protocols or ways of telling the computer what to do. http://www.amazon.com/CHUCKLES.do?forty=twenty involves lots of protocols, for example. What they are depends upon the setup on the server. At 07:41 AM 1/15/2004, you wrote: Actually Martin, if the link is file:///test.jpg, as in the message, it isn't a relative request. If it was just /test.jpg it would be relative to the context of the web-app, but it's not. -Rob -Original Message- From: Martin Gainty [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:29 AM To: Struts Users Mailing List; [EMAIL PROTECTED] Subject: Re: accessing an image outside my webapp Robert The client browser is making a request to a webserver using a relative address I think it would be best to understand the difference between relative addressing and absolute addressing I invite you to read http://www.drizzle.com/~slmndr/tutorial/relabs.html -Martin - Original Message - From: Robert Nocera [EMAIL PROTECTED] To: 'Struts Users Mailing List' [EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:25 AM Subject: RE: accessing an image outside my webapp I don't think Tomcat does, but your local browser will. You are sending your browser a link that tells it to load a file on your file system. It will work fine if you are only running locally, but it won't work if you try to access that link from a browser on another machine unless that machine also has the same file locally. -Rob -Original Message- From: Mark Lowe [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing List Subject: Re: accessing an image outside my webapp by jingo. it only works!! just src rather than href html:img src=file:///test.jpg / I thought tomcat wouldn't have access to anything outside the webapp. On 15 Jan 2004, at 15:03, Richard Hightower wrote: seems like an odd request... but here goes... html:img href=file://c:/photo directory/foo.gif/ html:img supports three attributes for specifyin the location of an image forward (referes to a global forward), page (relative to the current web context), and href (any valid URL). Rick Hightower Developer Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm Struts/J2EE consulting -- http://www.arc-mind.com/consulting.htm#StrutsMentoring -Original Message- From: Alain Van Vyve [mailto:[EMAIL PROTECTED] Sent: Thursday, January 15, 2004 7:35 AM To: [EMAIL PROTECTED] Subject: accessing an image outside my webapp I have a JSP where I would like to show an image located outside my webapp (e.g. in a c:\photo directory) ... How to do that with the html:img Struts tag ?? Thanks Alain - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] - To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
Re: accessing an image outside my webapp
I kind of thought the example i gave did that, although i did just have
dummy text for the path to image. Passing a few parameters or setting
the directory name in a properties file not a huge leap to make (at
least i thought not).
Any links explaining all this facade business?
On 15 Jan 2004, at 17:02, Michael McGrady wrote:
This is not quite right. The only thing you have to do is to give the
server whatever it needs to retrieve the data. This can be a relative
or absolute url or a protocol you develop on your own. The idea is
that you have to tell the server what to do. That will depend on your
set up. My site uses src='RESOURCE.MICHAELMcGRADY?file_type=[some
mime or defined type, e.g. gif, jpeg, css]file_name=[name of the
file, not fully qualified]' to return resources, including Flash in
the object tag.
The general solution is to create or obey some protocol which tells
the server to return the appropriate output stream to the response
object. My basic class, without the utility/helper classes is:
public final class ActionResource
extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException,
ServletException {
new Facade().handle(request, response);
return null;
}
}
The Facade class is as follows:
public class Facade
implements FacadeIF {
public Facade() {
super();
}
public void handle(HttpServletRequest request,
HttpServletResponse response) {
new WriteResponse().write(new InitResponse().init(request,
response), response);
return;
}
}
The key is that you use the response object to get the output stream
and return a null after writing the object in the response. This is
set up on my system so that the GUI people just have to indicate the
type and the name of their resource. They need know nothing else and
all the crap about how to locate and to return images, which is
always arising, is completely avoided. Cool, eh?
At 07:34 AM 1/15/2004, you wrote:
that makes a bit more sense now, so my original suggestion wasn't
just the crack talking then :)
On 15 Jan 2004, at 15:25, Robert Nocera wrote:
I don't think Tomcat does, but your local browser will. You are
sending
your browser a link that tells it to load a file on your file system.
It
will work fine if you are only running locally, but it won't work if
you try
to access that link from a browser on another machine unless that
machine
also has the same file locally.
-Rob
-Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM
To: Struts Users Mailing List
Subject: Re: accessing an image outside my webapp
by jingo. it only works!!
just src rather than href
html:img src=file:///test.jpg /
I thought tomcat wouldn't have access to anything outside the webapp.
On 15 Jan 2004, at 15:03, Richard Hightower wrote:
seems like an odd request... but here goes...
html:img href=file://c:/photo directory/foo.gif/
html:img supports three attributes for specifyin the location of an
image
forward (referes to a global forward), page (relative to the current
web
context), and href (any valid URL).
Rick Hightower
Developer
Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm
Struts/J2EE consulting --
http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message-
From: Alain Van Vyve [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 7:35 AM
To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp
I have a JSP where I would like to show an image located outside my
webapp
(e.g. in a c:\photo directory) ...
How to do that with the html:img Struts tag ??
Thanks
Alain
-
To unsubscribe, e-mail: [EMAIL PROTECTED]
For additional commands, e-mail: [EMAIL PROTECTED]
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Re: accessing an image outside my webapp
Actually, this does not require that the page be JSP. This solution works
with HTML just as well. So long as you have some mechanism for notifying
the server that the request should go to a controller, then HTML and JSP
work the same. The controller, not the page handles the Java, so the page
need not be Java smart.
At 09:01 AM 1/15/2004, you wrote:
??
I'm not sure what you mean, you don't forward with this action just return
null. You can pass what you need as parameters, I just gave you an example
with the perhaps naive expectation that you might work the rest out.
On 15 Jan 2004, at 16:42, Alain Van Vyve wrote:
that assumes you are not working with jsp anymore for that page ...
I cannot do that because my page contains a lot of other things ...
Do you think it is possible to integrate that code in my jsp page ?
At 15:59 15/01/2004 +, you wrote:
Have an action that write the image to the response
response.setContentType(image/jpeg);
response.setHeader(Cache-Control, no-cache);
OutputStream ou = response.getOutputStream();
String imageStr = /path to image;
java.net.URI imgUri = new java.net.URI(imageStr);
File imageFile = new File(imgUri);
RandomAccessFile raf = new RandomAccessFile( imageFile, r );
FileInputStream imageFileStream = new FileInputStream(imageFile);
byte[] image = new byte[(int) imageFile.length()];
while ( (raf.read( image )) 0 ){
ou.write( image );
}
ou.flush();
ou.close();
return null;
//map the action
action path=/image type=com.sparrow.struts.ImageAction /
//
call the action
On 15 Jan 2004, at 15:45, Alain Van Vyve wrote: I think It is an
intersting debate about relative versus absolute addressing ... but
I'm not relatively but absolutely lost ... Here is my jsp source ...
What do I have to change ?
Thanks image.tiffname=HotelListForm property='%=
hotelList.hotel[ + i + ].urlPhoto %' /' alt='
name=HotelListForm property='%= hotelList.hotel[ + i +
].urlPhoto %' /' border=0 At 15:44 15/01/2004 +,
you wrote: I think robert it right, i've just tested it too. And i
don't think that anyone is confused between absolute and relative
addressing. http://www.peevish.co.uk/slang/c.htm see chocolate
fireguard On 15 Jan 2004, at 15:28, Martin Gainty
wrote: Robert The client browser is making a request to a
webserver using a relative address I think it would be best to
understand the difference between relative addressing and
absolute addressing I invite you to
read http://www.drizzle.com/~slmndr/tutorial/relabs.html
-Martin - Original Message - From: Robert Nocera
To: 'Struts Users Mailing List' Sent: Thursday, January 15, 2004
10:25 AM Subject: RE: accessing an image outside my
webappI don't think Tomcat does, but your local browser
will. You are sending your browser a link that tells it to load
a file on your file system. It will work fine if you are only
running locally, but it won't work if you try to access
that link from a browser on another machine unless that machine
also has the same file locally. -Rob -Original
Message- From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM To: Struts Users Mailing
List Subject: Re: accessing an image outside my webapp by
jingo. it only works!! just src rather than
href I thought tomcat wouldn't have access to
anything outside the webapp.On 15 Jan 2004, at
15:03, Richard Hightower wrote: seems like an odd request...
but here goes... html:img supports three
attributes for specifyin the location of an image forward
(referes to a global forward), page (relative to the current
web context), and href (any valid URL). Rick
Hightower Developer Struts/J2EE training
--http://www.arc-mind.com/strutsCourse.htm Struts/J2EE
consulting
-- http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message- From: Alain Van Vyve
[mailto:[EMAIL PROTECTED] Sent: Thursday,
January 15, 2004 7:35 AM To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp I
have a JSP where I would like to show an image located outside my
webapp (e.g. in a c:\photo directory) ... How to do
that with the Struts tag ?? Thanks
Alain
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Re: accessing an image outside my webapp
The Facade is just a pattern. A simple use of it in this case. If you
want the code, request it at [EMAIL PROTECTED]
At 09:07 AM 1/15/2004, you wrote:
I kind of thought the example i gave did that, although i did just have
dummy text for the path to image. Passing a few parameters or setting
the directory name in a properties file not a huge leap to make (at
least i thought not).
Any links explaining all this facade business?
On 15 Jan 2004, at 17:02, Michael McGrady wrote:
This is not quite right. The only thing you have to do is to give the
server whatever it needs to retrieve the data. This can be a relative
or absolute url or a protocol you develop on your own. The idea is
that you have to tell the server what to do. That will depend on your
set up. My site uses src='RESOURCE.MICHAELMcGRADY?file_type=[some
mime or defined type, e.g. gif, jpeg, css]file_name=[name of the
file, not fully qualified]' to return resources, including Flash in
the object tag.
The general solution is to create or obey some protocol which tells
the server to return the appropriate output stream to the response
object. My basic class, without the utility/helper classes is:
public final class ActionResource
extends Action {
public ActionForward execute(ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response)
throws IOException,
ServletException {
new Facade().handle(request, response);
return null;
}
}
The Facade class is as follows:
public class Facade
implements FacadeIF {
public Facade() {
super();
}
public void handle(HttpServletRequest request,
HttpServletResponse response) {
new WriteResponse().write(new InitResponse().init(request,
response), response);
return;
}
}
The key is that you use the response object to get the output stream
and return a null after writing the object in the response. This is
set up on my system so that the GUI people just have to indicate the
type and the name of their resource. They need know nothing else and
all the crap about how to locate and to return images, which is
always arising, is completely avoided. Cool, eh?
At 07:34 AM 1/15/2004, you wrote:
that makes a bit more sense now, so my original suggestion wasn't
just the crack talking then :)
On 15 Jan 2004, at 15:25, Robert Nocera wrote:
I don't think Tomcat does, but your local browser will. You are
sending
your browser a link that tells it to load a file on your file system.
It
will work fine if you are only running locally, but it won't work if
you try
to access that link from a browser on another machine unless that
machine
also has the same file locally.
-Rob
-Original Message-
From: Mark Lowe [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 10:14 AM
To: Struts Users Mailing List
Subject: Re: accessing an image outside my webapp
by jingo. it only works!!
just src rather than href
html:img src=file:///test.jpg /
I thought tomcat wouldn't have access to anything outside the webapp.
On 15 Jan 2004, at 15:03, Richard Hightower wrote:
seems like an odd request... but here goes...
html:img href=file://c:/photo directory/foo.gif/
html:img supports three attributes for specifyin the location of an
image
forward (referes to a global forward), page (relative to the current
web
context), and href (any valid URL).
Rick Hightower
Developer
Struts/J2EE training -- http://www.arc-mind.com/strutsCourse.htm
Struts/J2EE consulting --
http://www.arc-mind.com/consulting.htm#StrutsMentoring
-Original Message-
From: Alain Van Vyve [mailto:[EMAIL PROTECTED]
Sent: Thursday, January 15, 2004 7:35 AM
To: [EMAIL PROTECTED]
Subject: accessing an image outside my webapp
I have a JSP where I would like to show an image located outside my
webapp
(e.g. in a c:\photo directory) ...
How to do that with the html:img Struts tag ??
Thanks
Alain
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