Re: Servlets and JSP Error Pages
I think it's easier:
Put this line every JSP:
1. %@ page errorPage=errorHandler.jsp%
2. Create an errorhandler JSP. (Example is attached.)
Every throwable error will redirect to errorhandler.jsp.
bye: horZsolt
- Original Message -
From: Arnaud Héritier [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Monday, October 01, 2001 3:45 PM
Subject: RE: Servlets and JSP Error Pages
It's not a really clean solution but you can do it like this :
try{
.
}catch(Exception e){
RequestDispatcher rd =
getServletContext().getRequestDispatcher(MyErrorPage.jsp);
request.setAttribute(javax.servlet.jsp.jspException, e);
rd.forward(request, response);
}
I tested it and it works.
arno
-Message d'origine-
De: Brendan McKenna [SMTP:[EMAIL PROTECTED]]
Date: lundi 1 octobre 2001 15:35
À: [EMAIL PROTECTED]
Objet: Servlets and JSP Error Pages
Hi,
Is there a way to route exceptions thrown in servlets to a JSP
error page?
Brendan
--
Brendan McKennaEmail: [EMAIL PROTECTED]
Development StrategistPhone: +353-61-338177
Taringold Ltd.Fax: +353-61-338065
errorHandler.jsp
Re: NullPointerException in getSession
You get this error message in 2 cases: 1. You want to acces the session, but it doesn't exist (use getSession(true)) 2. You want to acces a session value, but it doesn't exist: e.g: request.getSession().getValue(ANYTHING), and ANYTHING variable not in the session. - Original Message - From: Manu KY [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Monday, October 01, 2001 4:34 PM Subject: Re: NullPointerException in getSession Hi, please paste the code for easy debugging!!!. did you do getSession(true)? Manu Hi all. Does anyone know a solution to the exception presented below? It happens when I try to get an http session. The interesting thing is that this problem is not deterministic: sometimes it happens and sometimes it does not (obviously, using the same code and the same environment). Any help is welcome! Thanks, Daniel Novy. java.lang.NullPointerException at org.apache.tomcat.core.RequestImpl.getSession(RequestImpl.java:497) at org.apache.tomcat.facade.HttpServletRequestFacade.getSession(HttpServletReq u estFacade.java:382) at cetip.web.CtpRequest.getHttpSession(CtpRequest.java:350) at cetip.web.CtpWebUser.getSessionAttribute(CtpWebUser.java:467) _ Do You Yahoo!? Get your free @yahoo.com address at http://mail.yahoo.com
Re: precompiling JSP
public void precompileFile(File file) {
try {
URL precompileURL = new URL(rootURL,
file.getName()+?jsp_precompile=true);
HttpURLConnection conn = (HttpURLConnection)
precompileURL.openConnection();
int responseCode = conn.getResponseCode();
}catch (Exception exc) {
System.out.println(Exception: +exc.toString()+ for
+startDir+file.getName());
}
}
- Original Message -
From: Atanas Michev [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Friday, August 24, 2001 11:17 AM
Subject: precompiling JSP
Hi,
I would appreciate if someone can tell me how to:
- precompile a JSP file step by step
- precompile more than one JSP file in one Servlet in order to make faster
their approaching when calling them for the first time.
Many thanks in advance
Atanas
_
Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp
web.xml
Hi ! How can I set more than 1 context-parameter in the WEB.XML file. I do this: context-param param-nameserverIp/param-name param-value192.168.2.3/param-value descriptionMT web application/description param-namejobType_1/param-name param-value01./param-value descriptionMT web application/description /context-param , but when I ask this parameter's value's in JSP I get NULL ! If I use only one context-parameter no problem Anybody can help me?
Re: Direct servlet Access ?
/servlet/com.fivia.adfront.sales.Test - Original Message - From: Loïc Lefèvre [EMAIL PROTECTED] To: Mailing List Tomcat [EMAIL PROTECTED] Sent: Friday, July 27, 2001 4:20 PM Subject: Direct servlet Access ? The story continue... I've reinstalled Tomcat 3.2.3 on my server and http://lol.fivia.com:8080/examples/servlet/HelloWorldExample works well. I have installed a war file that work well on NT in [linux] %TOMCAT_HOME%/webapps What is the url to access the class Test (com.fivia.adfront.sales.Test) ? server.xml: ... Context path= docBase=webapps/adfront crossContext=false debug=0 reloadable=true /Context ... [adfront.war].web.xml: ... web-app servlet servlet-nameAdFront/servlet-name servlet-classcom.fivia.adfront.sales.Test/servlet-class /servlet servlet-mapping servlet-nameAdFront/servlet-name url-pattern/adfront/url-pattern /servlet-mapping session-config session-timeout30/session-timeout /session-config /web-app
getinitParameter
Hi
!I have a web.xml file with this
lines:
context-param
param-namevalami/param-name
param-valuesun.jdbc.odbc.JdbcOdbcDriver/param-value
description The database
driver's type.
/description
/context-param
servlet-namegetInit/servlet-name
descriptionNo desc.
/description
servlet-classgetinit.mainServlet/servlet-class
init-param
param-namevalami/paramName
param-valuecom.mycompany.myactions.ListOrdersAction/param-value
/init-param /servletHow can I acces
the valami variable inside a servlet (in JSP works). I use
getServletConfig.getInitParameter("valami") and I always get null !!! I don't
understand !!!
Or I have to
use getServletContext.getInitParameter instead
?Thanx.
Re: How to pass init parameter to a JSP
... %! String variable = ;% % variable = getServletContext().getInitParameter(variable);% The value is: %=variable% ... - Original Message - From: Simon Chan [EMAIL PROTECTED] To: [EMAIL PROTECTED] Sent: Tuesday, July 17, 2001 12:24 PM Subject: How to pass init parameter to a JSP Hi, How to pass initial parameters to a JSP? I know how to pass initial parameters to a servlet via web.xml file (init-param). However, I don't know where to put for JSP. This is my JSP file ... % String c = config.getInitParameter(cfg); ... Thanks in advance skc
Re: How to make a war file
Hi !
See the attached files. Edit the build.xml and change this line:
property name=app.name value=SB_URM/
Set the value to your application's directory name, and run the batch. Thats
it.
- Original Message -
From: Anshul [EMAIL PROTECTED]
To: [EMAIL PROTECTED]
Sent: Tuesday, July 03, 2001 10:51 AM
Subject: How to make a war file
I have got all the file structure ready to make this archive. But how do
we
create one? I didn't find it being demonstrated at any place.
I studied that it's similar to jar. So what do I do? jar cvf xyz.jar abc?
And rename xyz.jar to xyz.war?
!-- A project describes a set of targets that may be requested
when Ant is executed. The default attribute defines the
target which is executed if no specific target is requested,
and the basedir attribute defines the current working directory
from which Ant executes the requested task. This is normally
set to the current working directory.
--
project name=Schichtbuch default=dist basedir=.
!-- Property Definitions
Each of the following properties are used by convention in this
build file. The values specified can be overridden at run time by
adding a -Dname=value argument to the command line that invokes Ant.
This technique is normally used to copy the values of the ANT_HOME
and TOMCAT_HOME environment variables into the ant.home and
tomcat.home properties, which are normally not defined explicitly.
app.name Base name of this application, used to
construct filenames and directories.
deploy.home The name of the directory into which the
deployment hierarchy will be created.
Normally, this will be the name of a
subdirectory under $TOMCAT_HOME/webapps.
dist.home The name of the base directory in which
distribution files are created.
dist.src The name of the distribution JAR file
containing the application source code,
to be stored in the dist.home directory.
This filename should end with .jar.
dist.war The name of the Web ARchive (WAR) file
containing our deployable application.
This filename should end with .war.
javadoc.home The name of the base directory in which
the JavaDoc documentation for this application
is generated.
tomcat.home The name of the base directory in which
Tomcat has been installed. This value is
normally set automatically from the value
of the TOMCAT_HOME environment variable.
In the example below, the application being developed will be deployed
to a subdirectory named myapp, and will therefore be accessible at:
http://localhost:8080/myapp
--
property name=app.name value=SB_URM/
property name=deploy.homevalue=${tomcat.home}/webapps/${app.name}/
property name=dist.home value=${deploy.home}/
property name=dist.src value=${app.name}.jar/
property name=dist.war value=${app.name}.war/
property name=javadoc.home value=${deploy.home}/javadoc/
!-- The prepare target is used to construct the deployment home
directory structure (if necessary), and to copy in static files
as required. In the example below, Ant is instructed to create
the deployment directory, copy the contents of the web/ source
hierarchy, and set up the WEB-INF subdirectory appropriately.
copydir src=web dest=${deploy.home}/
mkdir dir=${deploy.home}/WEB-INF/
copyfile src=etc/web.xml dest=${deploy.home}/WEB-INF/web.xml/
--
target name=prepare
mkdir dir=${deploy.home}/
mkdir dir=${deploy.home}/WEB-INF/classes/
mkdir dir=${deploy.home}/WEB-INF/lib/
copydir src=${deploy.home}/WEB-INF/lib dest=${deploy.home}/lib/
copydir src=${deploy.home}/WEB-INF/classes dest=${deploy.home}/classes/
mkdir dir=${javadoc.home}/
/target
!-- The clean target removes the deployment home directory structure,
so that the next time the compile target is requested, it will need
to compile everything from scratch.
--
target name=clean
deltree dir=${deploy.home}/
/target
!-- The compile target is used to compile (or recompile) the Java classes
that make up this web application. The recommended source code directory
structure makes this very easy because the javac task automatically
works its way down a source code hierarchy and compiles any class that
has not yet been compiled, or where the source file is newer than the
class file. After compilation is complete, any non-Java files (such as
properties files containing resource bundles) found in the source code
hierarchy are copied to a
Servlet registration
Hi ! How could I register my own servlets into TomCat ?? I put them into the %TOMCAT_HOME%/webapps/myapp/Web-inf/classes directory. AfterI create a web.xml file in the %TOMCAT_HOME%/webapps/myapp directory. The web.xml file contains this: !DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd" web-app display-name Web Application/display-name servlet servlet-nameServlet1/servlet-name servlet-classServlet1/servlet-class /servlet servlet-mapping servlet-nameServlet1/servlet-name url-pattern/Servlet1/url-pattern /servlet-mapping /web-app And I restarted the tomcat, but it doesn`t work ! What`s wrong? Please help for me: [EMAIL PROTECTED]
Servlet registration
Hi ! How could I register my own servlets into TomCat ?? I put them into the %TOMCAT_HOME%/webapps/myapp/Web-inf/classes directory. After I create a web.xml file in the %TOMCAT_HOME%/webapps/myapp directory. The web.xml file contains this: !DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD Web Application 2.2//EN" "http://java.sun.com/j2ee/dtds/web-app_2_2.dtd" web-app display-name Web Application/display-name servlet servlet-nameServlet1/servlet-name servlet-classServlet1/servlet-class /servlet servlet-mapping servlet-nameServlet1/servlet-name url-pattern/Servlet1/url-pattern /servlet-mapping /web-app And I restarted the tomcat, but it doesn`t work ! What`s wrong? Please help for me: [EMAIL PROTECTED]
