javax.servlet.jsp.pagecontext 无法解析为类型

javax.servlet.jsp.pagecontext 无法解析为类型 javax.servlet.jsp.jspexception无法解析为此类型 javax.servlet.jsp.JspException cannot be resolved to a type javax.servlet.jsp.JspException:Cannot find bean under name o javax.servlet.jsp.JspException:Cannot find ActionMappings or jsp:javax.servlet.jsp.JspException:In <parseDate>,a pa servletpackage servlet;import javax.servlet.http.HttpServlet The type javax.servlet.ServletContext cannot be resolved.It jsp+servlet跳转问题: Cannot call sendRedirect() after the respon 错误提示：严重:Servlet.service() for servlet [jsp] in context with 多个jsp页面调用同个servlet时出现错误Cannot call sendRedirect() after the jsp+servlet的问题,提交时报错：Cannot forward after response has been