【归纳总结】JavaEE之开发Servlet的方式、Servlet的生命周期、url-pattern、Context域
开发Servlet的三种方式方式一:继承GenericServletpublicclassFirstServletextendsGenericServlet{@Overridepublicvoidservice(ServletRequestservletRequest,ServletResponseservletResponse)throwsServletException,IOException