JSP页面顶端出现“红色”的报错信息：The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path。是由于在原来Javaweb工程类中没有添加Tomcat运行时相关类。
具体的解决方法如下：
1、右击web工程-》properties或Build Path-》Java Build Path->Libraries-> Add Libray...->Server Runtime -》Tomcat Server
2、切换到Java Build Path界面中的Orader and Export，选择Tomcat。 注意：
按以上方法操作时，若打开Server Runtime后一片空白，需要设置Apache服务器。设置方法为：window->Preferences->Server->Runtime Environment -> add --> 选择Apache的版本后点Next，再填入你apache服务器软件的安装（解压后）地址。
相关文章
- The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path。问题
- java错误：The superclass "javax.servlet.http.HttpServlet" was not found on the Java Bu
- 异常-----The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path。
- jsp页面提示“Multiple annotations found at this line: - The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path”解决方案
- The superclass “javax.servlet.http.HttpServlet" was not found on the Java Build Path错误
- web项目jsp出现The superclass javax.servlet.http.HttpServlet was not found on the Java Build Path错误
- maven The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path错误
- The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path解决方案
- JSP报错：The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path
- Eclipse导入JavaWeb项目报错：The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path