web项目部署到tomcat报错：Eclipse javax.servlet.jsp.PageContext cannot be resolved to a type
解决办法：
1.项目右键--->Build Path--->Add Libraries
2.点击Server Runtime--->next
3.选中tomcat--->finish
4.Libraries中会有Tomcat
6.Order and Exception--->勾选Tomcat--->apply--->OK
问题解决！