引入旧的Java项目的时候出现"Description Resource Path Location Type Date cannot be resolved to "解决方案

错误描述:

Description	Resource	Path	Location	Type
Date cannot be resolved to a type	add.jsp	/besto/WebRoot/WEB-INF/pages/series	line 176	JSP Problem

解决方案:

1.window-->preferences-->java-->Installed JREs-->Add 增加你要用的jdk
2.window-->preferences-->java-->compiler