how to show a default image

I have this code in which I show an image on a JSP page
<tr>
<td width="386"><a border ='0' href="/chapters/pub"><img src="/chapters/attachments/images/<%=chapter_ID%>LOGO" width="386" height="61"></a></td>
</tr>

Now how can I write code which checks if an image with this name exists, if it doesn't show a default page

Any help will be greatly appreciated

huzefaq

Asked: 2006-06-30

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1 Solution

LVL 28

rrzCommented: 2006-06-30

Here is one way.
<%
File file = new File(application.getRealPath("/chapters/attachments/images/" + chapter_ID + "LOGO"));
if(file.exists()){
%>
<tr>
<td width="386"><a border ='0' href="/chapters/pub"><img src="/chapters/attachments/images/<%=chapter_ID%>LOGO" width="386" height="61"></a></td>
</tr>
<%
}else{ response.sendRedirect(request.getContextPath() + "/default.jsp"); return;}
%>

huzefaqAuthor Commented: 2006-07-06

Thanks a lot

I actually end up with this code

<%
file = new File(application.getRealPath("attachments/images/" + chapter_ID + "SIMAGE.jpg"));
if(file.exists()){
              %>
                   <tr>
                        <td><img src="attachments/images/<%=chapter_ID%>SIMAGE.jpg" width="140" height="140"></td>
                   </tr>
              <%
                  }else{
              %>
                   <tr>
                        <td><img src="attachments/images/DefaultSIMAGE.jpg" width="140" height="140"></td>
                   </tr>
              <%
              }
              %>

huzefaqAuthor Commented: 2006-07-06

If you don't mind I just wanted to know what does this code do

else{ response.sendRedirect(request.getContextPath() + "/default.jsp"); return;}

LVL 28

rrzCommented: 2006-07-06

>if it doesn't show a default page
I thought you wanted to go to another page. The code would have redirected the browser.

huzefaqAuthor Commented: 2006-07-06

ok, thanks

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