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我应该使用 Jetty 的那个版本？

Jetty 9 是最新的版本，针对以前的 Jetty 版本，Jetty 9 进行了很多的改进。本文档也主要是针对 Jetty 9 的。

如果你还在使用其他老的 Jetty 版本，Jetty 官方建议你尽快升级到 Jetty 9， Jetty 9 的版本，官方还计划维护几年的时间，Jetty 7 和 8 官方已经不在进行任何维护和升级了。

Jetty 版本

Jetty 和 Java EE Web Profile

Jetty实现了Java EE 规范,主要是Servlet规范.Java EE 平台的最近版本介绍了Web Profile,意识到许多开发者在Java EE 范围内只需要许多技术的一个子集.

当然Jetty自身并不是所有的Web Profile技术,Jetty是这样的一种架构：你可以插入第三方实现,产生一个符合你的确切需求的自定义的容器.

Java EE 7 Web Profile

在即将发布的Java EE 7 规范中,Web Profile的更新反映在它的组件规范和加入的一些新的:

JavaEE7 Web Profile

Jetty EE 6 Web Profile

Here is the matrix of JSRs for Java EE 6 Web Profile, and how they relate to Jetty:

Table 1.3. Java EE 6 Web Profile

在 Maven 中找到 Jetty

Maven CoordinatesChangelogs in Maven Central

 Important

It is important that only stable releases are used in production environments. Versions that have been deprecated or are released as Milestones (M) or Release Candidates (RC) are 否t suitable for production as they may contain security flaws or incomplete/否n-functioning feature sets.

Maven Coordinates

Jetty has existed in Maven Central almost since its inception, though the coordinates have changed over the years. When Jetty was based at SourceForge and then The Codehaus it was located under the groupId of org.mortbay.jetty. With Jetty 7 the project moved to the Eclipse foundation and to a new groupId at that time to reflect its new home.

The top level Project Object Model (POM) for the Jetty project is located under the following coordinates.

<dependency>
  <groupId>org.eclipse.jetty</groupId>
  <artifactId>jetty-project</artifactId>
  <version>${project.version}</version>
</dependency>

Changelogs in Maven Central

The changes between versions of Jetty are tracked in a file called VERSIONS.txt, which is under source control and is generated on release. Those generated files are also uploaded into Maven Central during the release of the top level POM. You can find them as a classifier marked artifact.

http://central.maven.org/maven2/org/eclipse/jetty/jetty-project/

<dependency>
  <groupId>org.eclipse.jetty</groupId>
  <artifactId>jetty-project</artifactId>
  <version>${project.version}</version>
  <classifier>version</classifier>
  <type>txt</type>
</dependency>