Howdy, >How many differences exist between JSP2.0 and 1.3 or 1.4 or how >About servlet 1.3 to 1.4 spec? Will this cause me troubles >Upgrading?
The JSP spec went from version 1.2 to 2.0, and has many enhancements. It's has a new expression languages as a mandatory part of the spec, for example. The Servlet spec went from version 2.3 to version 2.4, and has fewer changes. There are a couple of new listeners, the web.xml went from a DTD to a schema (so the order of elements in the web.xml file is not as critical), you can have a servlet welcome file, and there have been behavioral clarifications regarding some lifecycle and mapping events. For the specs, as always, maximum effort is made at backwards compatibility. Tomcat, in going from version 4.x to 5.x, had many internal changes aimed at better performance and reliability. These include the HTTP processing pipeline, the request mapping mechanism, handling of welcome files, and many configuration differences. For someone who never used tomcat before, there's no problem just starting with tomcat 5. If you used tomcat 4 and relied on TC4-specific behavior, your upgrade path will be more difficult. So stick to the servlet specification and avoid common pitfalls, such as getRealPath() and absolute links, and you'll be fine. Yoav Shapira This e-mail, including any attachments, is a confidential business communication, and may contain information that is confidential, proprietary and/or privileged. This e-mail is intended only for the individual(s) to whom it is addressed, and may not be saved, copied, printed, disclosed or used by anyone else. If you are not the(an) intended recipient, please immediately delete this e-mail from your computer system and notify the sender. Thank you. --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
