Wednesday, 15 April 2009

JSP/Servlet Specifications

I never actually remember these things, so it's time to blog about it...

JSP/Servlet Version

Servlet VersionJSP VersionJSTL VersionJava EE Version
2.5 2.1 1.2 5
2.4 2.0 1.1 1.4
2.3 1.2 1.0 1.3
2.2
1.1
1.0
1.2

In order to use Servlet 2.2, the web.xml needs to require it:
<!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>
...

For Servlet 2.3, the web.xml starts with:
<!DOCTYPE web-app PUBLIC "-//Sun Microsystems, Inc.//DTD
Web Application 2.3//EN" "http://java.sun.com/j2ee/dtds/web-app_2_3.dtd">
<web-app>
...

For Servlet 2.4, the web.xml starts with:
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
...

For Servlet 2.5, the web.xml starts with:
<?xml version="1.0" encoding="ISO-8859-1"?>

<web-app xmlns="http://java.sun.com/xml/ns/j2ee"
xsi="http://www.w3.org/2001/XMLSchema-instance"
schemalocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_5.xsd"
version="2.5">
...

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