配置初始化参数
<context-param>
<param-name>url</param-name>
<param-value>woshishabi:;</param-value>
</context-param>
获取并输出
public class ServletDemo03 extends HelloServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
ServletContext context=this.getServletContext();
String url=context.getInitParameter("url");
resp.getWriter().println(url);
}
public class ServletDemo04 extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
ServletContext context=this.getServletContext();
context.getRequestDispatcher("/gp").forward(req,resp);//请求转发
}
}
请求转发和重定向
Properties类可以和文件输入流配合使用，
load(文件流)
标签：应用,url,resp,req,HttpServletResponse,servletContext,context,Override From： https://www.cnblogs.com/guojianglong/p/17041561.html