Download servlet 2.4

The setCharacterEncoding method pairs with the preexisting getCharacterEncoding method to provide an easy way to manipulate and view the response's character encoding charset. The new getContentType method pairs with the preexisting setContentType method to expose the content type you've assigned. Formerly, this wouldn't have been too interesting, but now the type might be dynamically set with a combination of setContentType , setLocale , and setCharacterEncoding calls, and this method provides a way to view the generated type string.

So which is better, setLocale or setCharacterEncoding? It depends. The former lets you specify a locale like ja for Japanese and lets the container handle the work of determining an appropriate charset. That's convenient, but, of course, many charsets might work for a given locale, and the developer has no choice in the matter. However, the story doesn't end there. It looks like this:. These values could later be changed to UTF-8 when it grows more popular among clients.

Any locales not mentioned in the list will use the container-specific defaults as before. In case you've forgotten, when you forward to a servlet, the servlet container changes the target servlet's path environment as if it were the first servlet being invoked. However, sometimes an advanced forward target servlet might like to know the true original request URI. For this, Servlet 2. Inside a forwarded servlet you'll see getRequestURI return the path to the target servlet as always, but now if you want the original path, you can call request.

One special caveat: if forward happens through a getNamedDispatcher call, these attributes aren't set because, in that case, the original path elements aren't changed. However, these work just the opposite of the forward attributes. In an include , the path elements don't change, so the include attributes act as the backdoor to access the target servlet's path elements. Compare this with a forward where the path elements change so the forward attributes represent the backdoor to the original path elements.

Yes, it gets complicated. As soon as servlets began to use the URI space as an internal dispatch mechanism, the door to complexity opened. Another area where we see this complexity is in the interaction between the RequestDispatcher and filters. Should filters invoke for forwarded requests? Included requests?

Before Servlet 2. Now Servlet 2. This indicates the filter should be applied to requests directly from the client as well as forward requests. Mix and match for what you want. The last RequestDispatcher change is to allow, for the first time, relative paths in request. The path will be interpreted relative to the current request's path. It's a minor change, but comes in handy when dispatching to a sibling servlet. The request variety of listeners were added primarily to help debugging tools hook into the request handling.

The practical applications beyond that may be slim, so I don't dig into details here. Here are the latest Insider stories. More Insider Sign Out. Sign In Register. Please note that although we offer downloads and documentation of older releases, such as Apache Tomcat 7. We recognize that upgrading across major versions may not be a trivial task, and some support is still offered on the mailing list for users of old versions.

However, because of the community-driven support approach, the older your version, fewer people will be interested or able to support you. When voting for a release, reviewers specify the stability level that they consider the release has reached. Initial releases of a new major version typically process from Alpha, through Beta to Stable over a period of several months. However, the Stable level is only available once the Java specifications the release implements have been finalised.

This means a release that in all other respects is considered stable, may still be labelled as Beta if the specifications are not final. The download pages will always show the latest stable release and any newer Alpha or Beta release if one exists. Alpha and beta releases are always clearly marked on the download pages. Stability is a subjective judgement and you should always read carefully the release notes for any version you intend to make use of. If you are an early adopter of a release, we would love to hear your opinion about its stability as part of the vote: it takes place on the development mailing list.

Beta releases are not expected to run stably. Stable releases may contain a small number of relatively minor bugs. Stable releases are intended for production use and are expected to run stably for extended periods of time. Apache Tomcat It builds on Tomcat Apache Tomcat 9. In addition to this, it includes the following significant improvements:.

Apache Tomcat 8. In addition to that, it includes the following significant improvements:. It was created in March as a fork from Tomcat 9.

M4 alpha milestone release. A stable release of Tomcat 9. Tomcat 8. Please refer to Migration guide for guidance on migrating to Tomcat 8. There are significant changes in many areas under the hood, resulting in improved performance, stability, and total cost of ownership. Please refer to the Apache Tomcat 8.

Users of Tomcat 8. Apache Tomcat 7. In addition to that, it includes the following improvements:. Users of Tomcat 7 should be aware that Tomcat 7 has now reached end of life. Users of Tomcat 7. Apache Tomcat 6. Users of Tomcat 6 should be aware that Tomcat 6 has now reached end of life. Users of Tomcat 6. Apache Tomcat 5. Please refer to the Apache Tomcat 5.

Users of Tomcat 5 should be aware that Tomcat 5 has now reached end of life.