Recent Notes

Displaying keyword search results 1 - 5
Created by Dr. Xi on April 19, 2012 10:10:08    Last update: April 19, 2012 10:11:06
The default servlet for Tomcat is declared in $CATALINA_HOME/conf/web.xml : <servlet> <servlet-name>default</servle... Therefore, static content is rendered by the default configuration unless you override it with your own definitions. If you want to allow directory listing, just change the listing parameter to true : <init-param> <param-name>listings</para... Change the welcome-file-list to display a default page in lieu of a directory listing: <welcome-file-list> <welcome-file>home.xhtml</... Welcome pages are defined at the Web application level.
Created by nogeek on December 30, 2011 13:25:28    Last update: December 30, 2011 13:57:37
By default, tomcat uses an enhanced java.util.logging implementation called JULI, which can be configured at two different levels: Globally, with the ${catalina.base}/conf/logging.properties file. Per web application, with WEB-INF/classes/logging.properties . The configuration file is a normal Java properties file: Logging handlers are specified with the handlers property. handlers = 1catalina.org.apache.juli.FileHandler, ... The root logger can define its set of handlers using the .handlers property. .handlers = 1catalina.org.apache.juli.FileHandler,... A prefix may be added to handler names. The prefix starts with a digit and ends with a dot ( . ), for example: # 1catalina. is a prefix 1catalina.org.apache.j... System property replacement is performed for property values which contain ${systemPropertyName} . Each handler can have its own specific properties: 3manager.org.apache.juli.FileHandler.level = FINE ... Loggers can define their own...
Created by Fang on April 01, 2010 22:24:58    Last update: April 02, 2010 02:49:38
In this note I'll show you how to create and package a JSP custom tag. The purpose of this tag is to display a random splash image for a home page, among a set of images. We should be able to add or delete candidate splash images from the WAR archive without the need to change the JSP. This is the intended use of the tag: <%@ taglib uri="http://custom.tag.com/demo" prefix... In the above example you provide a set of images named splash*.png (e.g., splash1.png, spalsh2.png, ...), and the tag will pick a random one to display when the JSP is rendered. Let's get started. I'll use Maven for this purpose. Create the standard Maven directory structure ./pom.xml ./src ./src/main ./src/main/jav... pom.xml <project xmlns="http://maven.apache.org/POM/4.0.0"... SplashTag.java package tagdemo; import java.util.ArrayList......
Created by Dr. Xi on February 10, 2010 23:39:37    Last update: February 10, 2010 23:39:37
Example web.xml that includes most frequently used elements. This sample is for Servlet Specification 2.4. <?xml version="1.0" encoding="UTF-8"?> <web-ap...
Created by Dr. Xi on September 05, 2008 21:37:35    Last update: September 05, 2008 21:43:13
The DirectoryIndex directive sets the list of resources to look for, when the client requests an index of the directory. For example, DirectoryIndex index.html index.txt /cgi-bin/index... will cause Apache to look for index.html and index.txt in the requested directory in turn, and run /cgi-bin/index.pl if neither is found. DirectoryIndex overrides the Indexes option and can be used in server config , virtual host and directory sections, or in the .htaccess file. The Indexes option allows Apache to return a directory listing when a directory is requested: <Directory /web/docs> Options Indexes FollowSym...