Need Help Running Servlets

I have JRun installed along with IIS 5.0 and I'm learning Servlets through the book "Java Servlets" by Karl Moss. I have written my first servlet but he doesn't do a good job telling you how to get started. I need to know how to get my server ready to run the servlets and in what format to save the servlets. I have Homesite 5 and when I create a new servlet, it wants to save the file as a .java. I need some newbie help. Thanks, Jeremy

you should make sure of the follwoing when trying to run your servlet on the browser:
1. make sure that your classpath set properly,
2. make sure that the class path include the api related to servlets, such as servlet.jar, and other jar files.
3. complie your servlet, and package it properly, so that the container can locate it.
if you done the above, then things will work
I really advice you to check moreservlet.com, because it contains information on how to set up the environment when using either tomcat, jrun, or iplanet
regards

Similar Messages

Need help with servlets!!!

Hi, I'm a beginner in Oracle and Servlets. So far I was able to make a servlet which could run a query to an existing table of an oracle database and return this data in an HTML form generated by that same servlet.
I need some help on making a servlet that can accept user input and make an insert into that same existing table.
null

I suggest you break up the problem into manageable sub projects and solve each one in isolation. First, create a 'hello world' servlet. Search google for examples. Here is one problem with your code: if WelcomeServlet3 is in a package called 'myServlets, then you would use something like this: <servlet-class>myServlets.WelcomeServlet3<;/servlet-class> in the web.xml file.
Next, is your database connection: I suggest you create a database connection in a class with a 'public static void main(String[] args) method to call it. Have the configuration data within the class. Dont get it from an xml file. This way, you can run it stand-alone by right clicking on the class and choosing 'run as application' and therefore ensure it works.
Next go to the tomcat home page and read up on how to configure a database in tomcat by putting the configuration data in an xml file. Make sure you're reading the about the version of tomcat you're using. For all versions of tomcat, its something like this: If your web application is called 'myWebProject', then there should be an configuration xml file called 'myWebProject.xml' that goes under one of the tomcat sub folders. You use JNI to get the configuration data out of that xml file to configure the database. There is no database configuration data in the web.xml file.

NEED Help Running Out Of Time+++Q:Opening a PSD file in Illustrator Question???

Hello everyone!!! Hope everyone is staying dry and warm!!!
I have some artwork im doing for screen printing and a friend has been sending me some artwork to work on. The problem we are having is some of the artwork will open in Illustrator or CorelX4 and stay editable but then he will send me some that when I open in Illustrator it gives me this message and then will not be editable:
"""This document has greater than 8-bit depth it will be imported as an 8-bit flat composite""""
Can anyone tell us why this is happening??? I have researched this with no answers so far??? He is using PSD2 and Im usin PSD4 and Illustrator4
Please help!!!!! Running out of time for this artwork to be completed.
Thanks
Bobby

Photoshop is capable of saving files that are 16 or 32 bit depth. This has to do with the amount of colors that are accessable. The message you are seeing is telling you that it will convert the file back to 8 bit color space for you. This bit depth is talking about per channel, not over all. So a cmyk file would have 8 bits for cyan, 8 for megenta, 8 for yellow and 8 for black. Having a higher amount of bits per channel, photoshop is then capable of doing things like smoother gradients, retreiving data from raw images to produce an image that shows more highlights and shadows without the clipping and so forth.
Most basic monitors are only 8 bit, same goes for most printers. So unless you need to access the extra color depth, you should be fine in 8 bit. If you don't want to see this message, just tell your friend to send the images at 8 bit.

Beginner needs help running internet from Airport to Airport.

My fathers laptop has the internet running through ethernet connection. i want to be able to the internet to run through the airport card to my apple mac upstairs which has airport card too.
Now ive set up a serve and both computers are reconizing each other, on the internet connect it says computer to computer. When i check the internet status the airport card on my fathers mac gives a green signal but the computer upstairs has a yellow signal. i cant seem to share the internet connection. what am i doing wrong?.

It sounds like you need to either disable the firewall on your father's Mac or open port 443 on the firewall on the AirPort side. A tool like WaterRoof might make it easier.
The longer you use this setup the more of these issues you will discover. That is why I recommend that you get an inexpensive wireless router and eliminate all of these issues.

Advanced Excel user needing help running VBA program in Numbers 09

I am preparing for Dental school, a very tough program, indeed, and wanted to use a powerful tool that helped me out in my undergrad:
I have developed a Visual Basic program in Excel which gives the user a few simple forms through which I can enter data (terms and definitions, or possible test information) and then take short tests, play a silly game, print flash cards and so on.
I worked very hard to get this going on Office 2007 - very VERY hard given Office 07 is the most evil creation ever!!
I may resort to running gulp Vista to get this running, but what a pain! I am aware that Applescript is an option, but would hope there is some compatibility with my previous work. The more code I can preserve from my previous program the less time I will have to invest in developing the Mac version.
This is a highly advanced thing to do, and I realize most people don't do this sort of thing. If anyone is as crazy (and geeky) as me your help would be much appreciated. Thanks in advance!

Where are you finding Applescript 3.2.1 ?
As far as I know, the current AppleScript is 2.1.2 and is part of mac Os X 10.6.
Office for mac is unable to use VBA.
Numbers is unable to take benefit of this missing VBA.
AppleScript may be used to mimic some VBA features.
Look at :
http://mactech.com/vba-transition-guide/index-091.html
In fact, I guess that you grabbed Xcode 3.2.1 hoping to be able to build AppleScript applications.
This require a serious learning curve.
Look at :
http://developer.apple.com/Mac/library/releasenotes/ScriptingAutomation/RN-Apple ScriptObjC/index.html
Yvan KOENIG (VALLAURIS, France) lundi 5 avril 2010 08:01:27

Need help running a Python script when DVD inserted

We had an intern that created a custom Python script to rip our old event recording DVDs back to a digital format. The script creates a JSON description file and asks a set of questions to create the metadata in the JSON file (e.g. Date of event).
The way the intern set this up was that you'd click on the Python script which would open a terminal window where you fill in the metadata. It then asks if the DVD is in the computer. At this point you place the DVD in. A few seconds later, the Python script notices the DVD and proceeds to rip the DVD at our specific file size requirements along with the inputted metadata.
We then upgraded the Mac from Mountain Lion to Lion and the script stopped working. Our intern has since left. I have now moved the Python script onto my Mountain Lion Mac. The intern's last message to me was that he had written an AppleScript that ran when the DVD was inserted which then referred to the Python script. The intern has since stopped replying to emails.
This is a very important project that I would like to continue. Any help would be greatly appreciated!

well, oddly, that should never have worked.
Try this: open the applescript editor, copy in the following line:
tell application "Terminal"
do script "python /Users/medialab/dvddrip rename"
activate
end tell
Save it, making sure that the 'File Format' pull down says Script (the new file will have a '.scpt' extension). You'll be able to select that file in the cd/dvd preferences.
I assumed that you wanted this to open in terminal so that you can enter options on the command line. If that's not correct, let me know.

Need Help Running a JavaScript in Acrobat Pro 4

How does one run a JavaScript in Acrobat Pro 4? I know it is an old version, but does someone still know?

Ok, I have figured out how to run a JavaScript file. What is wrong with the following code - are these commands not supported in Acrobat 4?
app.addMenuItem({ cName: "Collate Document", cParent: "Tools", nPos: 0, cExec: "collate()"});
Title: Collate Document
Purpose: User is prompted to select document to insert/collate.
Author: Sean Stewart, ARTS PDF, www.artspdf.com
function collate()
this.insertPages (0,"scan0002.pdf", 0);
// create an array to use as the rect parameter in the browse for field
var arRect = new Array();
arRect[0] = 0;
arRect[1] = 0;
arRect[2] = 0;
arRect[3] = 0;
// create a non-visible form field to use as a browse for field
var f = this.addField("txtFilename", "text", this.numPages - 1, arRect);
f.delay = true;
f.fileSelect = true;
f.delay = false;
// user prompted to select file to collate the open document with
app.alert("Select the PDF file to merge with; this should be the odd-numbered pages:")
// open the browse for dialog
f.browseForFileToSubmit();
var oddDocPath = f.value;
var halfOfPages = this.numPages;
// insert pages from selected document into open document
for (var i = 0;i < halfOfPages; i++) {
this.insertPages(halfOfPages-i, evenDocPath, i);
// remove unused field
this.removeField("txtFilename");

Need help running a function in a package

Hi,
I am trying to execute a function called "IsGuest" which is stored in a package called "PK_USER_ROLE". This procedure returns a boolean as a result. Here is the PHP code in the web page I am using:
     echo "<br/>Test to execute a stored procedure";
     $s = oci_parse($conn, "begin :ret := PK_USER_ROLE.IsGuest(:userid); end;") or die ('Can not parse query');
     $myid = "huppe";
     oci_bind_by_name($s, ':ret', $r, 40);
     oci_bind_by_name($s, ':userid', $myid);
     oci_execute($s);
     echo "<br/>result=".$r;
     echo "<br/>Completed<br/><br/>";
     oci_free_statement($s);
     oci_close($conn);
In Oracle, here is the package definition:
create or replace
PACKAGE PK_USER_ROLE IS
function IsGuest (i_unique_id in varchar2) return boolean;
END;
All I get back when I view the PHP file in the browser is:
Test to execute a stored procedure
result=
Completed
PHP 5.3.8
Oracle 11g
OCI8 extension
Any help would be appreciated

I find it helpful to turn on errors and warnings in php.ini during
development.
    display_errors = On
    error_reporting = E_ALL | E_STRICTor use the ini_set() equivalents in your script. For production,
make sure errors are logged but not displayed to users.
Your script then gives:
    $ php54 t.php
    Test to execute a stored procedurePHP Warning: oci_execute(): ORA-06550: line 1, column 15:
    PLS-00382: expression is of wrong type
    ORA-06550: line 1, column 7:
    PL/SQL: Statement ignored in /tmp/t.php on line 10
    Warning: oci_execute(): ORA-06550: line 1, column 15:
    PLS-00382: expression is of wrong type
    ORA-06550: line 1, column 7:
    PL/SQL: Statement ignored in /tmp/t.php on line 10See the comment below the table in
http://docs.oracle.com/cd/E11882_01/appdev.112/e10646/oci03typ.htm#CEGIEEJI
+"The following two types are internal to PL/SQL and cannot be returned as values by OCI:+
+Boolean, SQLT_BOL+
+Record, SQLT_REC"+
Since PHP OCI8 is written in OCI, this limitation is inherited.
Try something like:
$s = oci_parse($conn, "begin if (IsGuest(:userid) = true) then :ret := 1; else :ret := 0; end if; end;") or die ('Can not parse query');

I need help running a Pandora app in the background while on the web

I cannot run Pandora in the background while on the web

If you create a console app and place it in a executable jar file, the program will run invisably, even if you have println statements. This is cos the jar file does not launch a console window, so no output will be displayed.
Hope that is what you wanted

Need help running amavis-stats

After some initial trouble, I managed to get amavis-stats running (thanks Dale).
Right off the bat though I'm getting things like:
No statistics available.
No statistics available.
No statistics available.
Generated by using command-line rrdtool
amavis-stats::error: No viruses/IDs seen.
amavis-stats::error: No viruses/IDs seen.
amavis-stats::error: No viruses/IDs seen.
Images don't load and there's nothing that looks like a RRD file in /usr/local/var/lib/amavis-stats, only 4 "amavis-stats.*" files. Also, /usr/local/var/cache/amavis-stats is empty.
Looks simple. Permissions issue? Those two directories are both owned by www:www.
Everything in amavis-stats.conf looks right. I don't have enough experience with amavis-stats to know how it normally behaves. What else should I be looking for?

Did restart.
This is 10.4.8 Server. amavis-stats is 0.1.22, RRDTool is 1.2.15, amavis is amavisd-new-2.2.0. Stock configuration otherwise.

Need help running 1.5 JRE on Windows with IE

I installed the new beta 1.5 JDK on Windows 2000. It appeared to have installed everything OK, and the standalone java.exe, javaw.exe and javac.exe work just fine. However, using this as the JRE with my browsers has been a nightmare.
I finally got it to work with Mozilla only by copying the files from the JRE's bin and lib dirs into bin and lib dirs at the root of my C: drive. This does not cut it with IE, however, which still insists that it cannot load jvm.dll at the following location:
<\bin\server\jvm.dll>
everytime it tries to load an applet. That is exactly the path given in the error dialog, and it's like the start of the path is truncated. I've checked the settings in the Java control panel, the registry, and my environment settings (for JAVA_HOME, JRE_HOME and the PATH) at least a dozen times with no luck. Anything I might be overlooking?

Check in %SystemRoot%\Downloaded Program Files and see what plugins you have...
%SystemRoot% = %Windir% = where ever win2k\XP is installed...
You should only see plugins for the "Java Runtime Environment 1.5.0" if you see something like 1.4.2 or below, remove it... That might help... Past that I can only guess from here...
-MaxxDmg...
- ' XP = 2K*NT'

Beginner needing help with servlet setup

im trying to setup a simple servlet but it seems that my html page will not invoke the java servlet. perhaps it is due to the location of the servlet class, is there a special directory to store the servlet in? or will storing it in the same dir as the html page suffice? Im using j2ee application server here is the html code im using:
<FORM ACTION="UploadTest" ENCTYPE="multipart/form-data" METHOD=POST>
What is your Name? <INPUT TYPE=TEXT NAME=submitter> <BR>
Which file would you like to upload? <INPUT TYPE=FILE NAME=file> <BR>
<INPUT TYPE=SUBMIT>
</FORM>
the directory im working in is:
C:\Sun\AppServer\domains\domain1\docroot\upload
which contains the html and the .java servlet
the servlet is named UploadTest.java
any advice would be appreciated

ur class file should be in
WEB-INF\classes folder
then u should map this class with the urlpattern in the web.xml file
u can invoke the servlet only with url pattern ur giving in the web.xml
i think u get me
regards
shanu

What do I need to compile and run Servlets and JSP?

Hi there,
What do I need to run Servlets and JSP? I am developing on a Windows platform.
As far as I know, Tomcat and JDK is needed. My JDK (1.3rc1) cannot seem to compile servlet files (javax.servlet.* not found)
Can anyone please advise?
Thank you in advance.

If you mean "in a month", then the answer is "afaik, no.", sorry.
If you need something comfortable, you better should buy one of these heavy-weighters like Weblogic, or WebSphere. Cost some $$$$'s, though (between 2000-10000. I guess).
For servlets (and ejb's too), there is no "easy and quick" solution. You probably should think about buying a freelancer or such, which already has the appropriate know-how.

Help needed to run JSTL 1.1 in Tomcat 6.0.16

Hi All,Help needed to run JSTL 1.1 in Tomcat 6.0.16. I am trying to run the example given in http://tomcat.apache.org/tomcat-6.0-doc/jndi-datasource-examples-howto.html The example tries to connect to MySQL database from JSP using JSTL and JNDI Datasource.I am running the example using Eclipse 3.4.2 using Sysdeo plugin to start and stop Tomcat server from Eclipse IDE.
My web.xml file has <web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" id="WebApp_ID" version="2.5">
</web-app>
and test.jsp has proper taglib directives
<%@ taglib prefix="sql" uri="http://java.sun.com/jsp/jstl/sql" %>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
I have placed the jstl.jar and standard.jarof the jakarta-taglibs-standard-1.1.2.zip under E:\Deepa\workspace\DBTest\WebContent\WEB-INF\lib directory also placedcontext.xml file under E:\Deepa\workspace\DBTest\WebContent\META-INF and the content of context.xml is as below
<Context path="/DBTest" docBase="DBTest"
debug="5" reloadable="true" crossContext="true">
<Resource name="jdbc/TestDB" auth="Container" type="javax.sql.DataSource"
maxActive="100" maxIdle="30" maxWait="10000"
username="deepa" password="mysql" driverClassName="com.mysql.jdbc.Driver"
url="jdbc:mysql://localhost:3306/javatest?autoReconnect=true"/>
</Context>
Now while running the example, Eclipse creates one DBTest.xml file under C:\Program Files\Apache Software Foundation\Tomcat 6.0\conf\Catalina\localhost
which has the following line:
<Context path="/DBTest" reloadable="true" docBase="E:\Deepa\workspace\DBTest" workDir="E:\Deepa\workspace\DBTest\work" />
I am getting the following error when running http://localhost/DBTest/WebContent/test.jsp
in Browser:
<HTTP Status 500 -
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/sql cannot be resolved in either web.xml or the jar files deployed with this application
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:51)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:409)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:116)
org.apache.jasper.compiler.TagLibraryInfoImpl.generateTLDLocation(TagLibraryInfoImpl.java:315)
org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:148)
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:431)
org.apache.jasper.compiler.Parser.parseDirective(Parser.java:494)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1444)
org.apache.jasper.compiler.Parser.parse(Parser.java:138)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:216)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:103)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:154)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:315)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:295)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:282)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:586)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:317)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:342)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:267)
javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
In the Tomcat Server console, I am getting the following error:
INFO: Server startup in 7295 ms
May 20, 2009 6:36:48 AM org.apache.jasper.compiler.TldLocationsCache processWebDotXml
WARNING: Internal Error: File /WEB-INF/web.xml not found
May 20, 2009 6:36:48 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
org.apache.jasper.JasperException: The absolute uri: http://java.sun.com/jsp/jstl/sql cannot be resolved in either web.xml or the jar files deployed with this application
what is the problem with my code?
When running the same example, by creating a local server in Eclipse(creating new Server connection pointing to same Tomcat 6.0 installation) it runs fine without any error.

Hi evnafets,
Wow, very helpful information, great insight into working of Eclipse. Thanks a lot.
I have one more question. I have a context.xml file under {color:#0000ff}E:\Deepa\workspace\DBTest\WebContent\META-INF{color} folder and that has the Resource element to connect to MySQL database:
{code{color:#000000}}{color}<Context path="/DBTest" docBase="DBTest" debug="5" reloadable="true" crossContext="true">
<Resource name="jdbc/TestDB" auth="Container" type="javax.sql.DataSource" maxActive="100" maxIdle="30" maxWait="10000" username="deepa" password="mysql" driverClassName="com.mysql.jdbc.Driver"
{color:#0000ff}url="jdbc:mysql://localhost:3306/javatest?autoReconnect=true"/>{color}
{color:#0000ff}</Context>{color}As usual when running application in local Tomcat server of Eclipse, this data source works fine. But when I run the application on Tomcat, by starting Sysdeo plugin from Eclipse, the DBTest.xml file created in C:\Tomcat 6.0\conf\Catalina\localhost has the context entry as<Context path="/DBTest" reloadable="true" docBase="E:\Deepa\workspace\DBTest\WebContent" workDir="E:\Deepa\workspace\DBTest\work">
</Context>The<Resource> element I have specified in the context.xml of \WebContent\META-INF folder is not taken into account by Tomcat and it gives the following error:May 21, 2009 5:20:04 AM org.apache.catalina.core.StandardWrapperValve invoke
SEVERE: Servlet.service() for servlet jsp threw exception
javax.servlet.jsp.JspException: Unable to get connection, DataSource invalid: "org.apache.tomcat.dbcp.dbcp.SQLNestedException_: Cannot create JDBC driver of class '' for connect URL 'null'"
_at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.getConnection(_QueryTagSupport.java:276_)
at org.apache.taglibs.standard.tag.common.sql.QueryTagSupport.doStartTag(_QueryTagSupport.java:159_)
at org.apache.jsp.test_jsp._jspx_meth_sql_005fquery_005f0(_test_jsp.java:113_)
at org.apache.jsp.test_jsp._jspService(_test_jsp.java:66_)
at org.apache.jasper.runtime.HttpJspBase.service(_HttpJspBase.java:70_)
at javax.servlet.http.HttpServlet.service(_HttpServlet.java:717_)
at org.apache.jasper.servlet.JspServletWrapper.service(_JspServletWrapper.java:374_)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(_JspServlet.java:342_)
at org.apache.jasper.servlet.JspServlet.service(_JspServlet.java:267_)
at javax.servlet.http.HttpServlet.service(_HttpServlet.java:717_)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(_ApplicationFilterChain.java:290_)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(_ApplicationFilterChain.java:206_)
at org.apache.catalina.core.StandardWrapperValve.invoke(_StandardWrapperValve.java:233_)
at org.apache.catalina.core.StandardContextValve.invoke(_StandardContextValve.java:191_)
at org.apache.catalina.core.StandardHostValve.invoke(_StandardHostValve.java:128_)
at org.apache.catalina.valves.ErrorReportValve.invoke(_ErrorReportValve.java:102_)
at org.apache.catalina.core.StandardEngineValve.invoke(_StandardEngineValve.java:109_)
at org.apache.catalina.connector.CoyoteAdapter.service(_CoyoteAdapter.java:286_)
at org.apache.coyote.http11.Http11Processor.process(_Http11Processor.java:845_)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(_Http11Protocol.java:583_)
at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(_JIoEndpoint.java:447_)
at java.lang.Thread.run(_Thread.java:619_)
{code}
So to overcome this error I had to place the <Resource> element in DBTest.xml under C:\Tomcat 6.0\conf\Catalina\localhost {color:#000000}and then it works fine. {color}{color:#ff0000}*Why is the context.xml file in META-INF not considered by Tomcat server using Sysdeo Plugin?*
*Thanks,*
*Deepa*{color}
{color}
Edited by: Deepa76 on May 26, 2009 9:32 PM

Need help. I am running a 27 in imac with 16 gigs of ram. Photoshop runs really fast, except when opening files. It takes 5-10 minutes to open even a small file of 1 meg. I cleaned and validated all the fonts and removed all questionable fonts. Reset pref

Need help. I am running a 27 in imac with 16 gigs of ram. Photoshop runs really fast, except when opening files. It takes 5-10 minutes to open even a small file of 1 meg. I cleaned and validated all the fonts and removed all questionable fonts. Reset preferences and still have problem. Slow to open and in force quit "Photoshop not responding" At this point should I uninstall and start over.

What are the performance Preferences?

Need Help Running Servlets

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