Dispatch request to an Async Servlet from managed bean generate exception
- by Thang Pham
when a button click, I need to have stuff running in my background, so I have a async Servlet. From my managed bean, if I do redirect, it works great (meaning that it execute my run() method inside my class that extends Runnable correctly). Like this
String url = externalContext.getRequestContextPath() + "/ReportExecutionServlet";
externalContext.redirect(url);
But if I switch to dispatch, like this
externalContext.redirect("/ReportExecutionServlet");
it fail when I try to obtain the AsyncContext
AsyncContext aCtx = request.startAsync(request, response);
The error is below
Caused By: java.lang.IllegalStateException: The async-support is disabled on this request: weblogic.servlet.internal.ServletRequestImpl
Any idea how to fix this please?
NOTE: This is how to execute my async servlet, just in case:
AsyncContext aCtx = request.startAsync(request, response);
//delegate long running process to an "async" thread
aCtx.addListener(new AsyncListener() {
@Override
public void onComplete(AsyncEvent event) throws IOException {
logger.log(Level.INFO, "ReportExecutionServlet handle async request - onComplete");
}
@Override
public void onTimeout(AsyncEvent event) throws IOException {
logger.log(Level.WARNING, "ReportExecutionServlet handle async request - onTimeout");
}
@Override
public void onError(AsyncEvent event) throws IOException {
logger.log(Level.SEVERE, "ReportExecutionServlet handle async request - onError");
}
@Override
public void onStartAsync(AsyncEvent event) throws IOException {
logger.log(Level.INFO, "ReportExecutionServlet handle async request - onStartAsync");
}
});
// Start another service
ScheduledThreadPoolExecutor executor = new ScheduledThreadPoolExecutor(10);
executor.execute(new AsyncRequestReportProcessor(aCtx));
