servlet中：
1 String servletPath = request.getServletPath(); 2 String methodName = servletPath.substring(1); 3 methodName = methodName.substring(0, methodName.length() - 3); 4 Method method; 5 try { 6 method = getClass().getDeclaredMethod(methodName, 7 HttpServletRequest.class, HttpServletResponse.class); 8 method.invoke(this, request,response); 9 } catch (NoSuchMethodException | SecurityException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) { 10 // TODO Auto-generated catch block 11 e.printStackTrace(); 12 } 13 14 } 15 16 private void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 17 18 System.out.println("update"); 19 } 20 private void query(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 21 List<User> list = dao.getAll(); 22 request.setAttribute("list", list); 23 request.getRequestDispatcher("/index.jsp").forward(request, response);; 24 System.out.println("query"); 25 } 26 private void delete(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 27 28 System.out.println("delete"); 29 }private void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 30 31 System.out.println("add"); 32 }
web.xml文件：
1 <servlet-mapping> 2 <servlet-name>UserServlet</servlet-name> 3 <url-pattern>*.do</url-pattern> 4 </servlet-mapping>
jsp：
<a href="add.do">add</a> <a href="delete.do">delete</a> <a href="query.do">query</a> <a href="update.do">update</a>