- servlet获取一些常用对象 « ~SingleForum~无废话记录~

servlet获取一些常用对象

Started 2 years ago by admin. | Tags: java . servlet .

JAVA:

//在servlet中获得application和session
//ServletContext就相当于JSP页面上的application这个对象。
HttpSession session=(HttpSession)request.getSession();
ServletContext application=(ServletContext)session.getServletContext();
//在servlet中获得out对象
PrintWriter writer = res.getWriter();
writer.print("！！！");
writer.close();
//获取pageContext
PageContext pageContext = JspFactory.getDefaultFactory().getPageContext(this, (ServletRequest) req,(ServletResponse) res, null, true,JspWriter.DEFAULT_BUFFER, true);