Do NOT use getRealPath("/")!!! If you read the API for this method it
says this functionality is optional and does not have to be supported,
particularly if the application is deployed as a WAR. It just so
happens to work in Tomcat but in most real EE servers this method does
not return anything.
The best thing to do is either use the code you mentioned below to get
the temp directory or use System.getProperty("java.io.tmpdir") An EE
server should be configured to allow writing to a temp directory. In
Tomcat's case this system property gets set to tomcat_home/temp but real
app servers usually go to the operating system real temp directory. The
advantage of using a real temp directory is that the operating system
will automatically purge old files for you.
-----Original Message-----
From: Giovanni Azua [mailto:[EMAIL PROTECTED]
Sent: Tuesday, October 09, 2007 10:21 AM
To: Struts Users Mailing List
Subject: OT: can't use JFreeChart plugin so ...
hi all,
Since I have a use-case where I can't use the JFreeChart plugin then
ended up handling the writing and reading of the generated chart image
files myself.
So my action implements ServletContextAware and using the function
getRealPath("/") I can generate the png files with unique names (using
an Id generator) and have them accessible to all my JSPs. Now this works
but I know it is not the cleanest solution i.e. it is filling up my web
app with temporary data ... is there any other place accessible to my
JSP files that I can use? would that be
ServletContext.getAttribute("javax.servlet.context.tempdir")?
TIA,
regards,
Giovanni
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