Problem with a simple hello world JSP

We have just installed WLS Express 7.0 (just downloaded) on a Solaris 8 server. Using the dmwiz.sh, we have created a new domain with a managed server. Both the Admin Server and managed server have started and are running. When I tried to load a sample web application (a war file that has a hello world JSP), I got a HTTP 500 internal server error in serving the hello.jsp page. This sample works fine in Windows WLS Express 7.0.
Can someone please help? Thank you in advance.

Alex <[email protected]> wrote:
We have just installed WLS Express 7.0 (just downloaded) on a Solaris
8 server. Using the dmwiz.sh, we have created a new domain with a managed
server. Both the Admin Server and managed server have started and are
running. When I tried to load a sample web application (a war file
that has a hello world JSP), I got a HTTP 500 internal server error
in serving the hello.jsp page. This sample works fine in Windows WLS
Express 7.0.
Can someone please help? Thank you in advance.Hi,
It seems the installation of the server worked fine as you were able to start
the servers.
You may try posting this message to the weblogic.developer.interest.jsp newsgroup.
If you are
not using the latest service pack, please try using that.
regards,
Platform Team
BEA Systems

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Basic (and I mean basic) java problem with a simple hello world script

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}Ok, so I javac HelloWorld.java and get HelloWorld.class, so far so good.
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<HTML>
<HEAD>
<TITLE>Jay's Java Test Page</TITLE>
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This line of text comes after the applet.
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Caused by: java.io.FileNotFoundException: /home/jc158027/java/HelloWorld/class".class (No such file or directory)
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What am I missing here?

And if you put dots in where it expects a class name, it assumes those dots are to separate levels in a package name.
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I have double checked the classpaths and they all look fine..
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java.rmi.UnexpectedException: undeclared checked exception; nested exception is:
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java.rmi.UnexpectedException: undeclared checked exception; nested exception is:
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I am embarking on a huge assignment but if am having problems getting started..
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thanx and regards
Ranjit Iyer

First of all you should be posting this Q in the RMI forum :)
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>
Can u tell me how to execute the simple hello world programs in struts by using eclipse ID..
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>
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<Service name="Catalina">


<Connector
port="5050" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />

 



<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />






<Engine name="Catalina" defaultHost="localhost">




<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>







<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">









<Context path="/tdm" docBase="tdm" debug="0" reloadable="true" />
</Host>
</Engine>
</Service>
</Server>
I have set the context path to /tdm in the server.xml file. Should this be placed in context.xml?
My first page in the project is called Homepage.html. To start my project I give http://localhost:5050/tdm/homepage.html
in a browser. Here I accept a username and password from the user and then do the validation in
a valid.jsp file, where I connect to the database and check and use jsp:forward to go to next pages
accordingly. However when I enter the username and password and click Go in the homepage, nothing is
displayed on the next page. The URL in the browser says valid.jsp but a blank screen appears.
WHY DOES IT HAPPEN SO? DOES IT MEAN THAT TOMCAT IS NOT RECOGNIZING JAVA IN MY SYSTEM OR IS IT A PROBLEM
WITH THE DATABASE CONNECTION OR SOMETHING ELSE? I FEEL THAT TOMCAT IS NOT EXECUTING JSP COMMANDS?
IS IT POSSIBLE?WHY WILL THIS HAPPEN?
I set the JAVA_HOME and CATALINA_HOME environment to the jdk and tomcat folders resp.
Is there any other thing that I need to set in classpath? Should I have my project as a
WAR file in the webapps of TOMCAT or just a folder i.e. directory structure will fine?

I am using Tomcat 5.5 and Jdk 1.5.0_12 and Oracle 10g. I am using jdbc-odbc bridge connection
to connect to the database. I have placed my project folder called
tdm under the webapps folder in Tomcat. This 'tdm' folder consists of
a collection of html pages,jsp pages and images of my project. Also I created a
WEB-INF folderand in that I have lib folder which contains catalina-root.jar
, classes12.jar and nls_charset.jar files. And also in the WEB-INF folder I have the web.xml
file which looks like this
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app>
<resource-ref>
<description>Oracle Datasource example</description>
<res-ref-name>jdbc/gdn</res-ref-name>
<res-type>javax.sql.DataSource</res-type>
<res-auth>Container</res-auth>
</resource-ref>
</web-app>
My Server.xml file in Tomcat\conf folder is as follows



<Server port="8005" shutdown="SHUTDOWN">

<Listener className="org.apache.catalina.mbeans.ServerLifecycleListener" />
<Listener className="org.apache.catalina.mbeans.GlobalResourcesLifecycleListener" />

<GlobalNamingResources>

<Environment name="simpleValue" type="java.lang.Integer" value="30"/>

<Resource name="UserDatabase" auth="Container"
type="org.apache.catalina.UserDatabase"
description="User database that can be updated and saved"
factory="org.apache.catalina.users.MemoryUserDatabaseFactory"
pathname="conf/tomcat-users.xml" />
<Resource name="jdbc/gdn" auth="Container"
type="javax.sql.DataSource" driverClassName="sun.jdbc.odbc.JdbcOdbcDriver"
url="jdbc:odbc:gdn"
username="system" password="tiger" maxActive="20" maxIdle="10"
maxWait="-1"/>
</GlobalNamingResources>


<Service name="Catalina">


<Connector
port="5050" maxThreads="150" minSpareThreads="25" maxSpareThreads="75"
enableLookups="false" redirectPort="8443" acceptCount="100"
connectionTimeout="20000" disableUploadTimeout="true" />

 



<Connector port="8009"
enableLookups="false" redirectPort="8443" protocol="AJP/1.3" />






<Engine name="Catalina" defaultHost="localhost">




<Realm className="org.apache.catalina.realm.UserDatabaseRealm"
resourceName="UserDatabase"/>







<Host name="localhost" appBase="webapps"
unpackWARs="true" autoDeploy="true"
xmlValidation="false" xmlNamespaceAware="false">









<Context path="/tdm" docBase="tdm" debug="0" reloadable="true" />
</Host>
</Engine>
</Service>
</Server>
I have set the context path to /tdm in the server.xml file. Should this be placed in context.xml?
My first page in the project is called Homepage.html. To start my project I give http://localhost:5050/tdm/homepage.html
in a browser. Here I accept a username and password from the user and then do the validation in
a valid.jsp file, where I connect to the database and check and use jsp:forward to go to next pages
accordingly. However when I enter the username and password and click Go in the homepage, nothing is
displayed on the next page. The URL in the browser says valid.jsp but a blank screen appears.
WHY DOES IT HAPPEN SO? DOES IT MEAN THAT TOMCAT IS NOT RECOGNIZING JAVA IN MY SYSTEM OR IS IT A PROBLEM
WITH THE DATABASE CONNECTION OR SOMETHING ELSE? I FEEL THAT TOMCAT IS NOT EXECUTING JSP COMMANDS?
IS IT POSSIBLE?WHY WILL THIS HAPPEN?
I set the JAVA_HOME and CATALINA_HOME environment to the jdk and tomcat folders resp.
Is there any other thing that I need to set in classpath? Should I have my project as a
WAR file in the webapps of TOMCAT or just a folder i.e. directory structure will fine?

Simple "hello world" program

I have the following code:
public class hello
public static void main(String[] args)
System.out.println("Hello World");
I get the following message when I try to run this program:
Exception in thread "main" java.lang.NoClassDefFoundError: hello
Does anyone know what could be the cause of this error?
Thanks in Advance!!

Please check your class path. Make sure that current working directory is included in it.
If not add it as shown below
set classpath=%classpath%;.;

Problem with a simple hello world JSP

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