JSP and FileOutputStream
Hi
I have done some simple form for inserting some data into input fields...
this input fields are inclosed into form tag... and action="AnotherJSP.jsp"
in this AnotherJSP.jsp i create java object...
this object prints data to my matrix printer (to print data i use
FileOutputStream v_out = new FileOutputStream("\\\\ip_of_hostprinter\\printername");
v_out.write(somedata);
...)
i have to do this that way because im using escape sequences for my matrix printer...
now when i create this class (with FileOutputStream inside) in
public static void main(String[] args) ..., it works.. it prints...
when i create this class (with FileOutputStream inside) in my JSP it outputs some error :
java.io.FileNotFoundException: \\ip_of_hostprinter\printername (Access is denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(Unknown Source)
at java.io.FileOutputStream.<init>(Unknown Source)
at Printing.Printing.initPrinter(Printing.java:76)
at Printing.Printing.<init>(Printing.java:68)
at org.apache.jsp.printPage_jsp._jspService(printPage_jsp.java:57)
at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:97)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:334)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:314)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:264)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11AprProcessor.process(Http11AprProcessor.java:833)
at org.apache.coyote.http11.Http11AprProtocol$Http11ConnectionHandler.process(Http11AprProtocol.java:639)
at org.apache.tomcat.util.net.AprEndpoint$Worker.run(AprEndpoint.java:1285)
at java.lang.Thread.run(Unknown Source)
and then ofcourse NULLpointerexception... because there is no v_out...
i wander why it work (from the same computer) if i call printing from main and does not work if i call (from the same comp.) from jsp...
?!?!!
any ideas?
