<div>
some more headers to try are:-<br />
<br />
<br />
// always modified<br />
response.setHeader( &quot;Last-Modified&quot;,&quot;&quot;+(new Date()));<br />
&nbsp;<br />
// HTTP/1.1<br />
response.setHeader( &quot;Cache-Control&quot;,&quot;no-store,<wbr /> no-cache, must-revalidate&quot;);<br />
response.setHeader(&quot;Cache-<wbr />Control&quot;,&quot;<wbr />post-check<wbr />=0, pre-check=0&quot;);<br />

</div>


some more headers to try are:-


// always modified
response.setHeader( "Last-Modified",""+(new Date()));
 
// HTTP/1.1
response.setHeader( "Cache-Control","no-store, no-cache, must-revalidate");
response.setHeader("Cache-Control","post-check=0, pre-check=0");


<div>
<div class="content wysiwyg-content">
the new upload picture file does not display until i refresh the page. I believe this is a caching problem. So i added the following statements to prevent browser caching. But it didn't work. Is this a caching problem or something else? If this is a caching problem, how can i solve it?<br />
<br />
&nbsp;&lt;%<br />
response.setHeader( &quot;Cache-Control&quot;, &quot;no-cache&quot; );<br />
response.setHeader( &quot;Pragma&quot;, &quot;no-cache&quot; );<br />
response.setIntHeader( &quot;Expires&quot;, 0 );<br />
<br />
%&gt;
</div>
</div>


the new upload picture file does not display until i refresh the page. I believe this is a caching problem. So i added the following statements to prevent browser caching. But it didn't work. Is this a caching problem or something else? If this is a caching problem, how can i solve it?

 <%
response.setHeader( "Cache-Control", "no-cache" );
response.setHeader( "Pragma", "no-cache" );
response.setIntHeader( "Expires", 0 );

%>

upload file caching problem

JavaServer Pages (JSP) allow the development of dynamically generated web pages. It uses the Java programming language; JSP pages are translated into servlets at runtime, with each servlet being cached and reused until the JSP is modified. JSP allows Java code to be interleaved with static web markup content, so the resulting page can be compiled and executed on the server to deliver the content.