Im having a problem with PrintWriter in a servlet.
I am trying to store users PrintWriter and use them again at a later date to output
javascript commands to the browsers at a later date. it store as a coyotewriter -
[EMAIL PROTECTED]
To do this they are dumped in a hashtable. But they dont seem to work when i try to
write output with them? Is there any way around this??
this is the error I get but only when i include the flush() line.
If anybody can help it would be most appreciated
To write out to users browser - retrieves from hashtable
--------------------------------------------
System.out.println("Is this even working: Receivedevent!!!!!!! "+useroutputstream);
PrintWriter usersout = (PrintWriter)useroutputstream.get("derrick");
usersout.println("Testing received event status"+receivedevent);
usersout.print("<script type=\"text/javascript\">");
usersout.print("receivedEvent('your dinner is ready');");
usersout.print("</script>");
//extraline
usersout.flush(); -----> Exception: lbp.LBPServlet.doGet(LBPServlet.java:98)
I dont know if this is also part of the problem but if i use the .flush(), it seems to
start throwing exceptions.
java.lang.NullPointerException
org.apache.coyote.http11.InternalOutputBuffer.commit(InternalOutputBuffer.java:547)
org.apache.coyote.http11.Http11Processor.action(Http11Processor.java:735)
org.apache.coyote.Response.action(Response.java:223)
org.apache.coyote.http11.InternalOutputBuffer.doWrite(InternalOutputBuffer.java:518)
org.apache.coyote.Response.doWrite(Response.java:532)
org.apache.coyote.tomcat5.OutputBuffer.realWriteBytes(OutputBuffer.java:392)
org.apache.tomcat.util.buf.ByteChunk.flushBuffer(ByteChunk.java:439)
org.apache.coyote.tomcat5.OutputBuffer.flush(OutputBuffer.java:350)
org.apache.coyote.tomcat5.CoyoteWriter.flush(CoyoteWriter.java:119)
lbp.LBPServlet.doGet(LBPServlet.java:98)
javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
org.apache.catalina.servlets.InvokerServlet.serveRequest(InvokerServlet.java:466)
org.apache.catalina.servlets.InvokerServlet.doGet(InvokerServlet.java:180)
javax.servlet.http.HttpServlet.service(HttpServlet.java:743)
javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
filters.ExampleFilter.doFilter(ExampleFilter.java:149)
filters.ExampleFilter.doFilter(ExampleFilter.java:149)
