Servlet reloading doesn't work
Running WL 5.1 SP6 and can't get servlet reloading to work. Have the
necessary lines in weblogic.properties:
weblogic.httpd.servlet.classpath=<my classpath>
weblogic.httpd.servlet.reloadCheckSecs=1
The servlets are in a web app so I have the web app's WEB-INF/classes, where
the servlets reside, in weblogic.httpd.servlet.classpath.
Possibly this is a problem only with web apps? Anyone else run into this?
Thanks.
From my understanding, putting the servlet classes in the WEB-INF/classes
directory eliminates the need to put them into any classpath (servlet, weblogic,
or otherwise). Put them back into the WEB-INF /classes directory and make sure
that this directory is not in the weblogic or servlet classpath.
Hope this helps,
Robert
Paul Folbrecht wrote:
> Ok, that makes sense. But, I tried what you suggested in your mail- moving
> them to /servletclasses instead of /classes, and putting that directory on
> the servlet classpath with this line:
>
> weblogic.httpd.servlet.classpath=e:/development/Projects/ExampleWebApp/deplo
> yment/Web-inf/servletclasses
>
> I then get a ClassNotFoundException when trying to hit any servlet. Don't
> know what could be wrong.
>
> Mike Reiche <[email protected]> wrote in message
> news:[email protected]...
> >
> > Well, you have to figure something else out or put up with that
> > behavior.
> >
> > As long as the servlet classes are in your WEBLOGICCLASSPATH, they
> > will not get reloaded. The servlet class loader first tries to
> > get the servlet class from the 'parent' class loader - and if it
> > can find it there, it will not load a new one. That is why your
> > modified servlets do not get reloaded.
> >
> > Mike
> >
> > "Paul Folbrecht" <[email protected]> wrote:
> > >I'm afraid I can't agree. Also, I tried it, and it doesn't
> > >work. Putting
> > >servlets in WEB-INF/servletclasses results in ClassNotFoundExceptions
> > >on
> > >the servlet. The server doesn't know about this directory-
> > >why should it?
> > >There is no such directory mentioned anywhere in the J2EE
> > >webapp spec. I
> > >see only WEB-INF/classes mentioned.
> > >
> > >Also, the servlet classpath is explicity set in weblogic.properties
> > >as I
> > >noted below.
> > >
> > >In addition,
> > >Mike Reiche <[email protected]> wrote in message
> > >news:[email protected]...
> > >>
> > >> The servlets should be in something like WEB-INF/servletclasses
> > >> which is ONLY in weblogic.httpd.servlet.classpath.
> > >>
> > >> You say you have them in WEB-INF/classes, which is also
> > >in
> > >WEBLOGICCLASSPATH
> > >> (?) so they won't be reloaded.
> > >>
> > >> Mike
> > >>
> > >>
> > >>
> > >> "Paul Folbrecht" <[email protected]> wrote:
> > >> >Running WL 5.1 SP6 and can't get servlet reloading
> > >to
> > >> >work. Have the
> > >> >necessary lines in weblogic.properties:
> > >> >
> > >> >weblogic.httpd.servlet.classpath=<my classpath>
> > >> >weblogic.httpd.servlet.reloadCheckSecs=1
> > >> >
> > >> >The servlets are in a web app so I have the web app's
> > >> >WEB-INF/classes, where
> > >> >the servlets reside, in weblogic.httpd.servlet.classpath.
> > >> >
> > >> >Possibly this is a problem only with web apps? Anyone
> > >> >else run into this?
> > >> >
> > >> >Thanks.
> > >> >
> > >> >
> > >> >
> > >>
> > >
> > >
> >
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Mapping paths to servlets doesn't work anymore in SP5 ??
Hello,
see subject.
I have a small web application which is contained in a WAR-file named
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at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:251)
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at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135)
Sat Aug 26 15:58:54 CEST 2000:<E> <WebAppServletContext-httpdump> Servlet failed with ServletException
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at weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl.java:379)
at weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.java:187)
at weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.java:118)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:760)
at weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContextImpl.java:707)
at weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletContextManager.java:251)
at weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:369)
at weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135)
So, it seems the WLS has interpreted the <servlet-mapping> tag in the
DD correctly, but is then looking for the servlet class in the wrong
places..?
My system configuration:
$ java weblogic.Admin t3://localhost:7001 VERSION
WebLogic Build: 5.1.0 Service Pack 5 08/17/2000 07:21:55 #79895
$ uname -a
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Any hints?
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Olaf Klischat | TU Berlin computer science
Oberfeldstrasse 132 |
12683 Berlin, Germany |
phone: +49 30 54986231 | eMail: [email protected]
Hi,
we jared our servlets up and placed them in /WEB-INF/lib/....jar. The
mapping is working without any problems.
Daniel Hoppe
-----Original Message-----
From: Kumar Allamraju [mailto:[email protected]]
Posted At: Saturday, August 26, 2000 7:57 PM
Posted To: servlet
Conversation: mapping paths to servlets doesn't work anymore in SP5 ??
Subject: Re: mapping paths to servlets doesn't work anymore in SP5 ??
Yes, this is already a known problem in SP5.
Fix will be available in the upcoming service packs.
I guess the workaround is to put servlet classes in servlet classpath.
Sorry about the regression.
Kumar
Olaf Klischat wrote:
> Hello,
>
> see subject.
>
> I have a small web application which is contained in a WAR-file named
> "httpdump.war". Its deployment descriptor (web.xml) maps the servlet
> httpdump.HttpDumpServlet to the path /servletpath/* with the following
> XML statements:
>
> <servlet>
> <servlet-name>HttpDumpServlet</servlet-name>
> <display-name>The HTTP Dump Servlet</display-name>
> <servlet-class>httpdump.HttpDumpServlet</servlet-class>
> </servlet>
>
> <servlet-mapping>
> <servlet-name>HttpDumpServlet</servlet-name>
> <url-pattern>/servletpath/*</url-pattern>
> </servlet-mapping>
>
> In weblogic.properties, I have:
>
> weblogic.httpd.webApp.httpdump=httpdump.war
>
> The WAR-file is structured as follows:
>
> $ jar tf httpdump.war
> META-INF/
> META-INF/MANIFEST.MF
> WEB-INF/classes/httpdump/HttpDumpServlet.class
> WEB-INF/web.xml
> dummy.jsp
> $
>
> Now a request like http://host:port/httpdump/servletpath/xyz should be
> directed to my servlet, right?
>
> This works flawlessly in WLS 5.1 SP 3. With SP 5, I get the following:
>
> Sat Aug 26 15:58:54 CEST 2000:<E> <WebAppServletContext-httpdump>
Error loading servlet: httpdump.HttpDumpServlet
> java.lang.ClassNotFoundException: httpdump.HttpDumpServlet
> at
weblogic.boot.ServerClassLoader.findLocalClass(ServerClassLoader.java:35
5)
> at
weblogic.boot.ServerClassLoader.loadClass(ServerClassLoader.java:111)
> at java.lang.ClassLoader.loadClass(ClassLoader.java:243)
> at
weblogic.utils.classloaders.GenericClassLoader.parentLoadClass(GenericCl
assLoader.java:503)
> at
weblogic.utils.classloaders.GenericClassLoader.reallyLoadClass(GenericCl
assLoader.java:366)
> at
weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoa
der.java:182)
> at
weblogic.utils.classloaders.GenericClassLoader.loadClass(GenericClassLoa
der.java:156)
> at
weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl
.java:371)
> at
weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.jav
a:187)
> at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.
java:118)
> at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContex
tImpl.java:760)
> at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContex
tImpl.java:707)
> at
weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletCon
textManager.java:251)
> at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:3
69)
> at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135)
>
> Sat Aug 26 15:58:54 CEST 2000:<E> <WebAppServletContext-httpdump>
Servlet failed with ServletException
> javax.servlet.ServletException: Servlet class:
httpdump.HttpDumpServlet could not be loaded - the requested class
wasn't found in the classpath
>
> at
weblogic.servlet.internal.ServletStubImpl.prepareServlet(ServletStubImpl
.java:379)
> at
weblogic.servlet.internal.ServletStubImpl.getServlet(ServletStubImpl.jav
a:187)
> at
weblogic.servlet.internal.ServletStubImpl.invokeServlet(ServletStubImpl.
java:118)
> at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContex
tImpl.java:760)
> at
weblogic.servlet.internal.ServletContextImpl.invokeServlet(ServletContex
tImpl.java:707)
> at
weblogic.servlet.internal.ServletContextManager.invokeServlet(ServletCon
textManager.java:251)
> at
weblogic.socket.MuxableSocketHTTP.invokeServlet(MuxableSocketHTTP.java:3
69)
> at
weblogic.socket.MuxableSocketHTTP.execute(MuxableSocketHTTP.java:269)
> at weblogic.kernel.ExecuteThread.run(ExecuteThread.java:135)
>
> So, it seems the WLS has interpreted the <servlet-mapping> tag in the
> DD correctly, but is then looking for the servlet class in the wrong
> places..?
>
> My system configuration:
>
> $ java weblogic.Admin t3://localhost:7001 VERSION
> WebLogic Build: 5.1.0 Service Pack 5 08/17/2000 07:21:55 #79895
>
> $ uname -a
> Linux localhost.localdomain 2.2.14 #1 Wed Aug 16 01:57:42 CEST 2000
i686 unknown
>
> $ java -version
> java version "1.2.2"
> Classic VM (build 1.2.2-L, green threads, nojit)
> $
>
> Any hints?
>
> Thanks,
> Olaf
> --
> Olaf Klischat | TU Berlin computer science
> Oberfeldstrasse 132 |
> 12683 Berlin, Germany |
> phone: +49 30 54986231 | eMail: [email protected]
-
I clicked "yes" to upgrade iTunes and now it doesn't work. I get an error message stating my computer is missing MSVCR80 and then a message stating Error 7 (Windows Error 126). I've tried reloading iTunes twice. What can I do?
Go to Control Panel > Add or Remove Programs (Win XP) or Programs and Features (later)
Remove all of these items in the following order:
iTunes
Apple Software Update
Apple Mobile Device Support (if this won't uninstall move on to the next item)
Bonjour
Apple Application Support
Reboot, download iTunes, then reinstall, either using an account with administrative rights, or right-clicking the downloaded installer and selecting Run as Administrator.
The uninstall and reinstall process will preserve your iTunes library and settings, but ideally you would back up the library and your other important personal documents and data on a regular basis. See this user tip for a suggested technique.
Please note:
Some users may need to follow all the steps in whichever of the following support documents applies to their system. These include some additional manual file and folder deletions not mentioned above.
HT1925: Removing and Reinstalling iTunes for Windows XP
HT1923: Removing and reinstalling iTunes for Windows Vista, Windows 7, or Windows 8
tt2 -
Servlet reloading not working with WLS 5.1 sp8
I downloaded and installed WLS 5.1's sp8 to fix the "java.net.SocketException: Connection aborted by peer: socket write error"
problem. Although that problem is fixed, I have found that, however, the servlet (automatic) reloading does not
work anymore. If I remove the sp8 from my Java system classpath and WL classpath (i.e. not using sp8), then
the servler reloading works fine.
Does anybody experience similar problem or have I forgot to do something?
WLS properties/env vars setting:
- weblogic.httpd.servlet.reloadCheckSecs=0
- WEBLOGIC_CLASSPATH=%WEBLOGIC_HOME%\lib\weblogic510sp8.jar;...
- JAVA_CLASSPATH=%WEBLOGIC_HOME%\lib\weblogic510sp8boot.jar;...
Thanks in advance for any help.
I've experienced the same problem with both sp6 and sp8. In both cases I performed several test, including
- varied the value of weblogic.httpd.servlet.reloadCheckSecs
- changes to the package depth the servlet belonged to
- changes to the string length of the package names the servlet belonged to
At best, the servlet would reload sometimes. I've moved back to sp5 and the problem has subsided.
Note: I did not try registering the servlet to see how that would effect the dynamic reloading.
Hope this helps
- Dave
"Michel Dinh" <[email protected]> wrote:
>
>I downloaded and installed WLS 5.1's sp8 to fix the "java.net.SocketException: Connection aborted by peer: socket write error"
>problem. Although that problem is fixed, I have found that, however, the servlet (automatic) reloading does not
>work anymore. If I remove the sp8 from my Java system classpath and WL classpath (i.e. not using sp8), then
>the servler reloading works fine.
>
>
>Does anybody experience similar problem or have I forgot to do something?
>
>WLS properties/env vars setting:
>
>- weblogic.httpd.servlet.reloadCheckSecs=0
>- WEBLOGIC_CLASSPATH=%WEBLOGIC_HOME%\lib\weblogic510sp8.jar;...
>- JAVA_CLASSPATH=%WEBLOGIC_HOME%\lib\weblogic510sp8boot.jar;...
>
>Thanks in advance for any help.
-
I have been using FIREFOX since a long time back and am quite happy with FIREFOX 4.
But a little uncanny situation since release of FIREFOX RC is that 'Reload which used to come under view option is no longer visible,but appears as an icon(button) in toolbar...which sometimes doesn't work(becomes blur and sometimes firefox hangs)'.
Please try to fix it if its only my problem or include it in next release.Thanks!I have been using FIREFOX since a long time back and am quite happy with FIREFOX 4.
But a little uncanny situation since release of FIREFOX RC is that 'Reload which used to come under view option is no longer visible,but appears as an icon(button) in toolbar...which sometimes doesn't work(becomes blur and sometimes firefox hangs)'.
Please try to fix it if its only my problem or include it in next release.Thanks! -
Filter doesn't work for filter-servlet name mapping
Filter doesn't work for filter-servlet name mapping.
it only works for filtering url-pattern.
Does anybody has some idea?
BTW, does anybody know if filter will be invoked when
call RequestDispatcher.include/forward?
Version: WLS6.1 SP1 on solaris.
Thanks a lot.
Heng
The Filter defined will only be run in the context that it is defined in. Since you are creating a new context, you will have to assign a new Filter. BTW, why not include the static content in the WAR with the dynamic stuff?
-
Servlet (html code doesn't work correctly on IE6)
Hi, i've a problem with code html on servlet...my page works correctly with firefox but on IE6 i've a lot of bugs about table alignment and CSS looks like not exist . This is code that doesn't work:
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
String context = request.getContextPath();
response.setContentType("text/html");
out.println("<html>");
out.println("<head>");
out.println("<title>RisultatoRicerca Servlet</title>");
out.println("<link rel='stylesheet' type='text/css' href='"+context+"/css/cd.css'>");
out.println("<script>");
out.println("</script>");
out.println("</head>");
out.println("<body>");
DbUtility utility = new DbUtility();
GestioneCd gestioneCd =new GestioneCd();
GestioneNoleggio gestioneNoleggio=new GestioneNoleggio();
Cd cd = newCd();
cd.setArgomento(request.getParameter("argomento")==null?"":request.getParameter("argomento"));
cd.setEtichetta(request.getParameter("etichetta")==null?"":request.getParameter("etichetta"));
cd.setUbicazione(request.getParameter("ubicazione")==null?"":request.getParameter("ubicazione"));
int valoreRadio=request.getParameter("attivo")==null?0:Integer.parseInt(request.getParameter("attivo"));
if (valoreRadio==1){
cd.setAttivo(true);
}else if (valoreRadio==2){
cd.setAttivo(false);
Connection con = null;
LinkedList cdFromRisultatoRicerca=new LinkedList();
try{
con=utility.getConnection();
cdFromRisultatoRicerca=gestioneCd.getRisultatoRicercaCd(con, cd,valoreRadio);
ListIterator iterator = cdFromRisultatoRicerca.listIterator();
int id=0;
String argomento="";
String etichetta="";
String ubicazione="";
out.println("<form name='visualizza' method='post'");
out.println("<table align='center'>"); // NOT WORKS , table alignment not respected on IE6
out.println("<tr><td colspan='9' align='center'></td></tr>");
out.println("<tr><td colspan='9' align=center class='titolo'>Risultato ricerca</td></tr>");
out.println("<tr>");
out.println(" <td align='left' class='titolo'>Id</td>");
out.println(" <td align='left' class='titolo'>Argomento</td>");
out.println(" <td align='left' class='titolo'>Etichetta</td>");
out.println(" <td align='left' class='titolo'>Ubicazione</td>");
out.println(" <td align='center' class='titolo'>N.copie</td>");
out.println(" <td align='center' class='titolo'>Disponibili</td>");
out.println(" <td align='left' class='titolo'>Attivo</td>");
out.println(" <td class='titolo'> </td>");
out.println(" <td class='titolo'> </td>");
out.println("</tr>");
out.println("<tr>");
out.println(" <td colspan='7' align='center'>");
out.println(" <HR width='100%'>");
out.println(" </td>");
out.println(" <td> </td>");
out.println(" <td> </td>");
out.println("</tr>");
int copie=0;
while (iterator.hasNext()){
cd=(Cd)iterator.next();
out.println("<tr>"); // NOT WORKS, on IE6 lines appears not in a table
out.println(" <td>"+cd.getId()+"</td>");
out.println(" <td>"+cd.getArgomento()+"</td>");
out.println(" <td>"+cd.getEtichetta()+"</td>");
out.println(" <td>"+cd.getUbicazione()+"</td>");
out.println(" <td align='center'>"+cd.getCopie()+"</td>");
int copieNoleggiate=gestioneNoleggio.getCopieNoleggiate(con,cd);
int copieDisponibili=(cd.getCopie())-(copieNoleggiate);
out.println(" <td align='center'>"+copieDisponibili+"</td>");
out.println(" <td align='center'>");
if (cd.isAttivo()==true){
out.println("<img src="+context+"/immagini/pulsanteverde2.gif>");
}else{
out.println("<img src="+context+"/immagini/pulsanterosso2.gif>");
out.println(" </td>");
out.println(" <td>");
out.println(" <a href='javascript:;' onclick=\"javascript:window.open('"+context+"/servlet/ModificaCd?id="+cd.getId()+"','Modifica','width=500,height=300,top=200,left=300');\" target='main'>Modifica</a>");
out.println(" </td>");
if (cd.isAttivo()){
out.println(" <td>");
out.println(" <a href='javascript:;' onclick=\"javascript:window.open('"+context+"/servlet/ConfermaDisattiva?id="+cd.getId()+"','Disattiva','width=300,height=70,top=250,left=350');\" target='main'>Disattiva</a>");
out.println(" </td>");
}else{
out.println(" <td>");
out.println(" <a href='javascript:;' onclick=\"javascript:window.open('"+context+"/servlet/ConfermaAttiva?id="+cd.getId()+"','Attiva','width=300,height=70,top=250,left=350');\" target='main'>Attiva</a>");
out.println(" </td>");
out.println("</tr>");
out.println("<tr>");
out.println(" <td colspan='7' align='center'>");
out.println(" <HR width='100%'>");
out.println(" </td>");
out.println(" <td> </td>");
out.println(" <td> </td>");
out.println("</tr>");
out.println("<tr>");
out.println(" <td colspan='9' align='center'>");
out.println(" <a href='"+context+"/jsp/index.jsp' target='main'>Torna Home</a>");
out.println(" </td>");
out.println("</tr>");
out.println("</table>");
out.println("</form>");
}catch (SQLException e){
out.println(e.getMessage());
out.println(e.getSQLState());
}finally{
try {utility.closeConnection(con);} catch (Exception e) {con=null;}
out.println("</body>");
out.println("</html>");
out.close();
}And this is CSS :
BODY {
background : #CCCCCC ;
color : #000000 ;
font-family : sans-serif ;
font-size : 13px ;
A {
color : #D2691E ;
font-weight : bold ;
font-family : sans-serif ;
font-size : 12px ;
text-decoration : none ;
TABLE {
background : #CCCCCC ;
color : #000000 ;
font-family : sans-serif ;
font-size : 13px ;
border : 1px ;
.titolo {
background-color : #CCCCFF ;
font-family : sans-serif ;
color : #000000 ;
font-size : 13px ;
font-style : normal ;
font-weight : bold ;
}Thx for your attenction :Dout.println("<form name='visualizza'
'visualizza' method='post'");
out.println("<table align='center'>");
'center'>"); // NOT WORKS , table alignment not
respected on IE6You're missing a > at the end of the form start tag. -
SignalExpress program doesn't work when reloaded
I am new to SignalExpress and am trying to do a simple program in as a example to show a customer how to use a USB-6008 as a device to control and measure one of their devices. I am using digital outputs and they work correctly when I first enter and run the program. However if I exit and reload the same program, any "digital port output" blocks that precede a "Sequence" block fail to correctly output a "1". My sequence blocks have "allow hardware reuse" checked (so I can flip the same bits in different parts of the program).
I can tell when a "digital port output" block isn't going to work correctly by turning on the "preview" pane for it. If the "Value to Write" box is "High" this pane should show a filled radio button. This is set correctly when I first create the block. But if I close SignalExpress and reload the program this radio button will not be filled, and the USB-6008 won't correctly set the output to a "1".
If I manually set the output control to "0" and then back to "1", then the radio button will be filled again, and the program will work correctly again.
At first glance this appears to be a bug. Any help or suggestions appreciated. A copy of the SignalExpress VI and screen snapshots is attached. Thanks.
Chuck
When it works correctly (note radio button near top is filled):
When it doesn't work correctly (note all setttings are the same but radio button near top is empty):
This shows a snapshot of the Sequence block:
Attachments:
SignalExpress_Digital_Problem.zip 238 KBThanks for looking at this. Sorry about the duplicate post, but I realized I had put it in the wrong place and couldn't figure out how to delete it from the first string.
I was using the Sequence blocks so that I could set a digital line high, wait for 30 ms, set it low, and then make an ADC measurement and a limit test. Then if that passed other patterns would be generated. When I tried to do this is seperate blocks I was told I couldn't use the same resource without using the Sequence block with resource sharing turned on. That was why I added the Sequence block.
Chuck
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