pageContext对象是javax.servlet.jsp.PageContext类的实例,主要表示JSP页面的上下文
常用方法:
Public abstract void forward(String relativeUrlPath)throws ServletException,IOException 页面跳转;
Public void include(String relativeUrlPath)throws ServletException,IOException 页面包含;
Publilc servletConfig getServletConfig() 取得ServletConfig对象;
Public servletContext getServletContext() 取得ServletContext对象;
Public ServletRequest getRequest() 取得ServletRequest对象;
Public ServletResponse getResponse() 取得ServletResponse对象;
Public HttpSession getSession() 取得HttpSession对象;