faq@purpletech.com"> ]> Purple Servlet FAQ and Resources Alex Chaffee alex@purpletech.com http://www.stinky.com/alex/ $Revision: 1.2 $ $Date: 2003/02/05 21:16:44 $ http://www.purpletech.com/servlet-faq/ &feedback;

The FAQ has moved http://www.jguru.com/faq/Servlets to jGuru!

I'm now maintaining the Servlet FAQ at jGuru http://www.jguru.com/faq/Servlets . All the existing questions have been moved over, plus there's a great interface for submitting questions and answers and feedback. This is all part of jGuru http://www.jguru.com/ 's plan to provide a great place for Java developers to learn from each other.

I'm going to keep the list of Servlet-Related Resources up to date on this page for the time being, so you can keep bookmarking this page http://www.purpletech.com/servlet-faq/ until further notice.

More news: I've put my Purple Technology Source Code http://www.purpletech.com/code/ online, including several sample Servlets.

If you want to see the old version of the FAQ written in XML and XSL using LotusXSLhttp://www.alphaworks.ibm.com/tech/lotusxsl/ and XML for Javahttp://www.alphaworks.ibm.com/tech/xml/ from IBM, the source files are faq.dtd, servletfaq.xml, and faq.xsl if you'd like to see how I did it.

$Log: servletfaq.xml,v $ Revision 1.2 2003/02/05 21:16:44 alex *** empty log message *** Revision 1.1 2002/01/19 18:50:22 alex new build structure, new web directory Revision 1.1 2001/07/15 03:39:41 alex Initial import 7/2001 Revision 1.1 2000/07/16 01:27:40 alex new webapp arrangement Revision 1.1 2000/03/10 12:00:59 alex adding from site Revision 2.6 2000/01/22 22:34:26 alex clarified "moved to jguru", fiddled with resources Revision 2.5 2000/01/08 01:35:52 alex Removed all questions (they're at jGuru now) Revision 2.4 2000/01/07 21:46:33 alex caucho, misc Revision 2.3 1999/09/04 00:43:22 alex added weblogic links added applet-servlet communication article Revision 2.2 1999/07/22 14:10:01 alex added may wone's debugging advice Revision 2.1 1999/06/29 13:22:27 alex converted to XML many minor corrections changed first question to more general CLASSPATH question Revision 1.32 1999/06/21 20:34:03 alex added JSP FAQ and reshuffled FAQs in References section Revision 1.31 1999/06/11 22:36:08 alex jsdk webserver added to debug section Revision 1.30 1999/06/11 21:17:09 alex note about Jason Hunter Revision 1.29 1999/06/11 21:06:45 alex more on encodeURL Revision 1.28 1999/06/11 20:57:17 alex encodeUrl -> encodeURL Revision 1.27 1999/06/02 20:34:49 alex added apache mod_rewrite info Revision 1.26 1999/06/02 15:52:06 alex Added question 20 (file upload) and 21 (database access) Revision 1.25 1999/06/01 20:26:01 alex Fixed answer to question 8 (getRequestURI) other minor changes Revision 1.24 1999/05/30 16:08:39 alex several more servlet engines, servlets.net, etc. Revision 1.23 1999/05/28 18:17:41 alex jdb password=[password] Revision 1.22 1999/05/28 16:38:21 alex added a user comment to debugging section, added Gefion products Revision 1.21 1999/05/28 15:06:19 alex added ECS, moved apache faq to java.apache.org/faq Revision 1.20 1999/05/28 14:58:58 alex formatting snafus Revision 1.19 1999/05/28 14:37:15 alex Added Image Processing Classes to References list Revision 1.18 1999/05/28 14:09:28 alex Added question 18, How can I debug my servlet, and 19, How do I create an image Added InstantASP, Qsmtp, SVWH, jGuru, GifServlet, Jimi, Acme Revision 1.17 1999/04/24 20:55:03 alex fixed typos, redid question 6, revamped References Revision 1.16 1999/04/24 19:25:51 alex added question 17, "How can my applet communicate with my servlet?" added and revised many references Revision 1.15 1999/04/24 18:00:16 purple misc Revision 1.14 1999/01/07 14:08:27 purple revised question 11. How do I use Session Tracking? Revision 1.13 1999/01/07 13:56:10 purple Added question 16, What is the difference between URL encoding and URL rewriting? Slightly revised question 13, How do I integrate HTML design into my Servlet? Other minor corrections Revision 1.12 1998/12/24 17:36:02 purple #15 ISPs who host Servlets Revision 1.11 1998/12/09 14:11:22 purple Question 14, how do I send email from a servlet? Revision 1.10 1998/12/01 16:34:38 purple fixed version, log formatting Revision 1.9 1998/12/01 16:29:55 purple Added questions 12 & 13
Servlet API and the Servlet Development Kit http://java.sun.com/products/servlet/ Sun's official Servlet page Java Server Pages http://java.sun.com/products/jsp/ Sun's official JSP page The Java-Apache Project a volunteer effort, developing Apache JServ, JSSI, JMeter, Cocoon, etc. http://java.apache.org/ The Jakarta Project http://jakarta.apache.org/ Developers of Tomcat, an implementation of the Java Servlet 2.2 and JavaServer Pages 1.1 Specifications Servlets.com http://www.servlets.com/ Jason Hunter's web site companion to his "Java Servlet Programming" by O'Reilly Servlet Central the server-side Java magazine - lots of information about servlets, including a list of available servlets http://www.servletcentral.com/ Servlet Source http://www.servletsource.com/ code, tips, tutorials Servlets Taverne http://www.interpasnet.com/JSS/ Daily news and product announcements on Servlets, Web Servers, EJB, XML, JDBC
A "relatively old" Servlet API Whitepaper http://jserv.java.sun.com/products/java-server/documentation/webserver1.1/servlets/api.html Java Servlet API Spec Version 2.1 http://java.sun.com/products/servlet/2.1/ Java Servlet API Spec Version 2.2 http://java.sun.com/products/servlet/2.2/ Public Draft now available JSP Spec http://java.sun.com/products/jsp/techinfo.html Version 1.1 is available for public review RFC2045 - MIME http://info.internet.isi.edu/in-notes/rfc/files/rfc2045.txt RFC 2109 - Cookies http://info.internet.isi.edu/in-notes/rfc/files/rfc2109.txt
jGuru Servlet FAQhttp://www.jguru.com/faq/Servlets Java-Apache FAQ http://java.apache.org/faq/ New Atlanta Servlet FAQ http://www.newatlanta.com/servlets/servlet-faq.html Purple Technology Servlet FAQ (this document) http://www.purpletech.com/servlet-faq/ Java Web Server FAQ (from Sun) http://www.sun.com/software/jwebserver/faq/faq.html Java Server Pages (JSP) FAQs jGuru JSP FAQhttp://www.jguru.com/faq/JSP Sun JSP FAQ http://java.sun.com/products/jsp/faq.html Esperanto JSP FAQ http://www.esperanto.org.nz/jsp/jspfaq.html Richard Vowles
Java Web Server Documentation http://www.sun.com/software/jwebserver/techinfo/docs.html
JavaSoft Servlet Tutorial http://java.sun.com/docs/books/tutorial/servlets/index.html Required reading Java Web Server Servlet Tutorial http://jserv.java.sun.com/products/java-server/documentation/webserver1.1/servlets/servlet_tutorial.html Also available in the JWS download "Servlet Essentials" Tutorial by Stefan Zeiger http://www.novocode.com/doc/servlet-essentials/ "Building Java Servlets with JBuilder" walks you through creating servlets that utilize JDBC, RMI, and CORBA. http://jrun.com/support/whitepapers.html XML Java Tutorial Nazmul Idris has a section on using Servlets with XML http://developerlife.com/xmljavatutorial1/#usingtheservletapi Using Apache JServ 1.0b1 Ari Halberstadt http://www.magiccookie.com/computers/apache-jserv/ "a wonderful step-by-step process for bootstrapping Jserv and testing a simple servlet" - Reid M. Pinchback reidmp@MIT.EDU WebMonkey Servlet Tutorial Dr. Richard Blaylock http://www.hotwired.com/webmonkey/99/07/index3a.html
Intelligence.com http://www.intelligence.com/product.asp?id=248 has a wealth of links to articles about Servlets (as well as pretty much any other technology you can think of!) The Servlet Series http://java.sun.com/products/servlet/ stories from java.sun.com Servlet Central http://www.servletcentral.com/ The server-side Java magazine "Migrating CGI Scripts to Java Servlets" Java Developer's Journal, Jan 98 http://www.sys-con.com/java/feature/3-1/cgi-scripts/index.html "Developing 3-Tier Database Apps w/ Java Servlets" Java Developer's Journal, Feb 98 http://www.sys-con.com/java/feature/3-2/3-tier/index.html
Servlet Interest Mailing List http://java.sun.com/products/servlet/list.html jserv-interest@javasoft.com - to subscribe, send "SUBSCRIBE java-interest Joe Blow" in the body of a message to listserv@javasoft.com JSP Interest Mailing List http://java.sun.com/products/jsp/ jsp-interest@javasoft.com - to subscribe, send "SUBSCRIBE jsp-interest Joe Blow" in the body of a message to listserv@javasoft.com The Java-Apache Project Mail Lists http://java.apache.org/mail-list.html Separate lists for users of mod_jserv and developers of mod_jserv ServletExec Mailing List to subscribe, send "subscribe servletexec" in the body of a message to list-requests@newatlanta.com
Purple Technology - Java Training http://www.purpletech.com/ Write to training@purpletech.com jGuru Java Training http://www.jGuru.com/ the MageLang Institute http://www.magelang.com/ the best Java training in the known universe Advanced Web Technologies http://www.javatrain.com/ Nova Laboratories http://www.nova-labs.com/ Java Developer Kitchen Series
Sun's definitive list of servlet runners http://java.sun.com/products/servlet/runners.html The Java Web Server Sun Microsystems JWS Home Page http://www.sun.com/software/jwebserver/index.html JWS Download/purchase http://www.sun.com/software/jwebserver/buy/index.html Documentation http://www.sun.com/software/jwebserver/techinfo/index.html Upgrades http://www.sun.com/software/jwebserver/upgrade/index.html Java Server Product Group http://java.sun.com/products/java-server/index.html IBM's WebSphere http://www.software.ibm.com/webservers Lotus Domino Application Server Avenida http://www.avenida.co.uk/ certified 100% Pure Java web server Jetty http://www.mortbay.com/software/Jetty.html Jetty is an Open Source HTTP Servlet Server written in 100% Java LiteWebServer http://www.gefionsoftware.com/LiteWebServer A small (less than 100 KB) pure Java web server with support for the Servlet 2.1 API jo! http://www.webapp.de/ A small, pure Java HTTP server with support for Servlet API 2.1.1, part of WebApp Framework. Jigsaw http://www.w3.org/Jigsaw/ W3C's open-source Java HTTP server M5 Web Server http://m5.peakin.com/ Inexpensive Java web server Zeus Web Server http://www.zeustech.net/ Commercial web application server Paperclip http://www.tapsellferrier.co.uk/paperclips.html Open-source Servlet 2.1 Server BEA WebLogic http://weblogic.beasys.com/ "With 4.5 we fully implement JSP 1.0 as well"
Servlet Engines make servlets run inside existing web servers Apache JServ a servlet engine for Apache Web Server http://java.apache.org/ Tomcat http://jakarta.apache.org/ an implementation of the Java Servlet 2.2 and JavaServer Pages 1.1 Specifications JRun http://www.livesoftware.com/ Supports: Apache, Microsoft IIS and PWS, O'Reilly WebSite, Netscape FastTrack & Enterprise, StarNine WebSTAR, Apple AppleShare IP Live Software ServletExec New Atlanta Communications http://www.newatlanta.com/ Supports: Microsoft Internet Information Server (IIS), Netscape FastTrack & Enterprise servers, Apache (including on Linux) and all major Mac OS web servers WAICoolRunner Gefion Software http://www.gefionsoftware.com/ Supports: Netscape servers WebSphere IBMhttp://www.ibm.com/ http://www.software.ibm.com/webservers/appserv/ Supports: Lotus Domino Go Webserver, Apache HTTP Server, Microsoft IIS, and Netscape Enterprise Server
Includes CORBA 2.0 conformant object request broker and object server, supports Enterprise Java Beans (EJB) Locomotive http://www.locomotive.org an Open Source Java-based Web Application Server. Locomotive is built on Java and provides integration with Apache via the Apache API, Netscape servers via NSAPI and IIS servers via the ISAPI. The Locomotive currently supports Oracle, Informix, MySQL, Cloudscape:JDBMS, SQL Server. The Locomotive supports the Servlet API, has dynamic load balancing and failover capabilities and a sophisticated template language, STEAM. Dynamo Web Application Server ATGhttp://www.atg.com/ http://www.atg.com/
John Carnahan's Java Module for Apache (mod_java) http://wright.biology.ucla.edu/java-module/ Forks a new process for each servlet request N-Ary Consulting http://www.n-ary.com/consultancy/servlets/ Has several servlets for sale, also an interesting servlet interface to the comp.lang.java.programmer newsgroup. N-Ary comp.lang.java.programmer forum http://www.n-ary.com/consultancy/servlets/forum.html Spin http://www.zat.com an authoring tool based on JavaBeans that can author servlets Live Software Products http://www.livesoftware.com/products/ ServletDebuggerhelps test and debug servlets ServletWizardservlet project wizard for Symantec's Visual Cafe
ServletKiller stress test your site and applications WebApp Framework http://www.webapp.de
Here is a brief brief list of alternate page template systems (initially compiled by Dan Stiefel dan@entago.com) JSP http://www.javasoft.com/products/jsp/index.html GnuJSP a free implementation of Sun's Java Server Pages http://www.klomp.org/gnujsp/ GSP Gnu Server Pages http://www.bitmechanic.com/projects/gsp/ Apache JServSSI http://java.apache.org/jservssi/index.html Hamilton Open Source Application Server http://www.microstate.com/hamilton/ STEAM part of Locomotive http://www.locomotive.org FreeMarker (formerly Dexios) http://freemarker.org/ ASPy (Active Server Python) Script your HTML pages using JPython http://www.dstc.edu.au/aspy/ WebMacro Servlet Framework http://www.webmacro.org/ WASP http://www.wasp.org/ Web Application Server Platform. The WASP is an OpenSourceTM platform (library) for developing complex web applications. It is written in Java and runs under any system which will support the Java Servlet API. ExpertVista specializes in database access and report writing via XML http://www.netreturnllc.com/software/expertvista NetReturn http://www.netreturnllc.com/ HtmlScreen http://www.ticnet.com/bwit/download.htm WinWin Software's ATP Template Toolkit http://www.winwinsoft.com/atp/ CF_Anywhere http://www.livesoftware.com/products/ runs Cold Fusion CFML pages in a servlet Live Softwre http://www.livesoftware.com/ Instant ASP by Halcyon Software http://www.halcyonsoft.com/ Runs Microsoft IIS-style ASP pages in a servlet, allowing scripting in JScript, VBScript, Perl, JavaScript, and more, as well as JSP. ESP - ECMAScript Pages http://www.mindspring.com/~rrocha/esp.html a servlet add-on that allows you to write servlets directly in JavaScript (aka ECMAScript) and HTML Lightning Servlet Suite Page generation system built on JNDI http://www.webforged.com/LightningServletSuite/LightningServletSuite.html Metaphoria http://www.metaphoria.net/ Virtual Web Server architecture TRiX http://www-uk.hpl.hp.com/people/ak/java/#trix Template Resolution in XML/HTML Anders Kristensen http://www-uk.hpl.hp.com/people/ak/java/ ak@hplb.hpl.hp.com Caucho http://www.caucho.com/ Powerful JSP engine with built-in support for XSL and DOM and JavaScript
HTMLKona part of BEA WebLogic (formerly Tengah) http://www.weblogic.com/docs/classdocs/API_html.html BEA WebLogichttp://weblogic.beasys.com/ Mort Bay HTML Generation Classes Source code available as part of the Jetty release http://www.mortbay.com/software/Jetty.html Documentationhttp://www.mortbay.com/software/Utilities.html JSP Format Bean Library http://www.alphaworks.ibm.com/foundry.nsf/alphaBeans/61be4f19d691e45d88256706003acf9f IBM Alphaworkshttp://www.alphaworks.ibm.com/ Handy Servlet Beans for formatting HTML from JSP, including JSPTableFormat Bean. Element Construction Set (ECS) http://java.apache.org/ecs/ The Element Construction Set is a Java API for generating elements for various markup languages. It directly supports HTML 4.0 and XML. HTML Generation Package http://www-uk.hpl.hp.com/people/ak/java/#htmlgen an implementation of the java.servlet.html API, which has been removed from Sun's Java Web Server distribution Anders Kristensen http://www-uk.hpl.hp.com/people/ak/java/ ak@hplb.hpl.hp.com
Servlet Central's Archive http://www.servletcentral.com/common/archivelist.dchtml Live Software Servlets http://www.livesoftware.com/products/ CF_Anywhereruns Cold Fusion CFML pages in a servlet Servlet Pack Oneservlets for sending email, maintaining file-based counters, looking up a user's domain name from their IP address, displaying sophisticated date/time information, performing database queries, and file uploading NewsServletallows for the reading and posting of messages to standard NNTP-based news servers Tim McCune's Servlet Toolbox http://www.lib.ksu.edu/tim/servlets/ WinCGI Servlet, PageCounter Servlet, WeatherBox Servlet, AtRandom Servlet JavaExchange Database Connection Broker servlet http://www.javaexchange.com/ Servc Servlet Authoring Tool http://www.geocities.com/SiliconValley/Pines/3185/ Mort Bay Tracker: A WWW Servlet for issue/defect tracking http://www.mortbay.com/software/Tracker.html Cookie Detector http://www.purpletech.com/code/CookieDetector.html Alex Chaffee Tries to drop a cookie on the user's browser, and detects whether the browser accepted my cookie or not. InstantOnline by Gefion http://www.gefionsoftware.com/InstantOnline/ A servlet suite for devlopment of dynamic web sites without coding. Components for database access, email, file upload, session data handling, and more. Java Software Anders Kristensen http://www-uk.hpl.hp.com/people/ak/java/ ak@hplb.hpl.hp.com http://www-uk.hpl.hp.com/people/ak/java/ WebSter http://www-uk.hpl.hp.com/people/ak/java/#webster gateway to Webster's English Dictionary servers JdbcGateway http://www-uk.hpl.hp.com/people/ak/java/#jdbc-gw display tables, get database metadata, and submit arbitrary SQL statements Servlet Utilities http://www-uk.hpl.hp.com/people/ak/java/#utils FormMultiPart parser, Cookie sender, HTML template stuff GifServlet Aaron Porter resize and recolor GIFs http://www.metawerx.com.au/aaron.porter
GifEncoder http://www.acme.com/java/software/Acme.JPM.Encoders.GifEncoder.html Jef Poskanser Create and export GIFs in 100% Java Acme Labshttp://www.acme.com Focus on Java: Creating Images from the Command Line a brief article describing the use of the Java 2 JPEGCodec class. http://java.miningco.com/library/weekly/aa090299.htm Essential JPEG a "surprisingly fast" JPEG encoder in Java that can write to a file http://www.obrador.com/essentialjpeg/ James R. Weeksjwweks@bayou.com Pure Image and ImageBuilder http://www.purpletech.com/code/ a class that can combine multiple transparent GIFs into a single GIF Purple Technologyhttp://www.purpletech.com/ Jimi Activated Intelligence http://www.activated.com/ a Java image processing toolkit http://www.activated.com/products/jimi/jimi.html GifServlet Aaron Porter resize and recolor GIFs http://www.metawerx.com.au/aaron.porter
Sun's JavaMail Home Page http://www.javasoft.com/products/javamail/index.html Intro to JavaMail article http://jrunmag.com/docs/IntroToJavaMail.html JRun Magazine Qsmtp by Jim Driscoll http://www.io.com/~maus/JavaPage.html version of Qsmtp rewritten by Alex Chaffee http://www.purpletech.com/code/ supports multiple recipients and additional headers Servlet Central article http://www.servletcentral.com/1998-10/wonderful.dchtml describes (and has code for using) the sun.net.smtp package IBM Alphaworks SMTP Bean http://www.alphaworks.ibm.com/foundry.nsf/system/technologies/D6D9AA48B649C5548825662E00235954?opendocument EasyMail http://www.rule-of-eight.com/components/easymail/ a very easy package for sending simple messages