昌意子工常出版社， Publishing House of Electronics Industry 第一节编写Servlet @WebServlet(name="helloServlet",urlPatterns=[" hello.do"]) public class Hello extends HttpServlet public void init(ServletConfig config) throws ServletException super.init(config);第一节 编写Servlet @WebServlet(name="helloServlet",urlPatterns={"/ hello.do"}) public class Hello extends HttpServlet { public void init (ServletConfig config) throws ServletException { super.init(config); }