一、启动jetty8后，访问页面时出现
PWC6345: There is an error in invoking javac. A full JDK (not just JRE) is required
问题是我的jre的目录不对
解决办法：点击window->preference->java->Installed JREs
选中之后点击edit
jre的路径为你jdk目录下的jre我的本地的环境变量位置是（C:\Program Files\Java\jdk1.6.0_43\jre）
点击完成即可！
二，再次刷新页面时会出现以下错误
The Struts dispatcher cannot be found. This is usually caused by using Struts tags without the associated filter. Struts tags are only usable when the request has passed through its servlet filter, which initializes the Struts dispatcher needed for this tag. - [unknown location]
原因是我页面用了struts标签，网上搜了说这是jetty8的一个bug，在web.xml中将struts2的拦截器改一下就可以了
<filter-mapping>
<filter-name>struts2</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>