待整理
The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path
http://blog.csdn.net/testcs_dn/article/details/36455669
Multiple annotations found at this line: CoreException: Could not get the value for parameter com
Maven的JDK版本
http://jingyan.baidu.com/article/84b4f565efc39e60f7da326b.html
原文：http://www.cnblogs.com/windJcoder/p/5382143.html