Google App Engine does not provide a usual file system access.
You should implement certain Velocity interfaces to load the files via
classloader.
I have it working.

On 19 ноя, 22:26, vincwe <vincenzo.amor...@gmail.com> wrote:
> Hi to all,
> i'm try to use Apache velocity template for mailing,
> using the following code
>
> <code>
>         VelocityEngine ve = new VelocityEngine();
>         try {
>             ve.setProperty("resource.loader", "file");
>             ve.setProperty
> ("file.resource.loader.class","org.apache.velocity.runtime.resource.loader.FileResourceLoader");
>                 
> ve.setProperty("file.resource.loader.path","/template/email/");
>                 ve.setProperty( RuntimeConstants.RUNTIME_LOG_LOGSYSTEM_CLASS,
>               "org.apache.velocity.runtime.log.Log4JLogChute" );
>
>                  ve.setProperty("runtime.log.logsystem.log4j.logger",
>                  log.getName());
>                 // ve.setApplicationAttribute
> ("javax.servlet.ServletContext",this.servlet.getServletContext());
>                         ve.init();
>                 } catch (Exception e1) {
>                         // TODO Auto-generated catch block
>                     log.warning("EI:"+e1.getMessage());
>                 }
>
>                 VelocityContext context = new VelocityContext();
>         Template template =  null;
>
>                 try
>         {
>                 template = ve.getTemplate("mail1.vm");
>
>         }
>        .....
>
> </code>
>
> But at runtime gives this exception :
>
> 11-19 10:44AM 33.316 [wincheck123/4.337839622240022599].<stderr>:
> [error] ResourceManager.getResource() load exception
> W 11-19 10:44AM 33.316 [wincheck123/4.337839622240022599].<stderr>:
> access denied (java.io.FilePermission /template/email/mail1.vm read)
> W 11-19 10:44AM 33.316 [wincheck123/4.337839622240022599].<stderr>:
> java.security.AccessControlException: access denied
> (java.io.FilePermission /template/email/mail1.vm
> W 11-19 10:44AM 33.316 [wincheck123/4.337839622240022599].<stderr>: at
> java.security.AccessControlContext.checkPermission
> (AccessControlContext.java:355)
> ..
>
> Are there some security configuration to set for reading files on
> appengine? such as security policy or others
>
> Thank in advance
> Regards
> Vincenzo

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