javaweb1111111111111111111

package servlet; import java.io.IOException; import java.sql.SQLException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.annotation.WebServlet; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import bean.Orderbean; import service.OrderService; /** * Servlet implementation class OrderServlet * @param <OrderBean> */ @WebServlet("/order") public class OrderServlet<OrderBean> extends HttpServlet { private static final long serialVersionUID = 1L; /** * @see HttpServlet#HttpServlet() */ public OrderServlet() { super(); // TODO Auto-generated constructor stub } /** * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response) */ protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub String action=request.getParameter("action"); System.out.println(action); OrderService service=new OrderService(); String viewName=""; try { switch (action) { case "add": { String orderNo=request.getParameter("orderNo"); String ordertTime=request.getParameter("orderTime"); String orderNumber=request.getParameter("orderNumber"); Orderbean bean =new Orderbean(orderNo, ordertTime, orderNumber); if("".equals(request.getParameter("id"))) { int result = 0; result = service.insert(bean); if(result>0) { System.out.println("执行成功"); viewName="jsp/order_add.jsp"; request.setAttribute("msg", "操作成功"); }else { System.out.println("执行失败"); viewName="jsp/order_add.jsp"; request.setAttribute("msg", "操作失败"); } }else { bean.setId(Integer.valueOf(request.getParameter("id"))); int result = 0; result = service.update(bean); if(result>0) { System.out.println("执行成功"); //request.setAttribute("list", service.queryAll()); viewName="order?action=query"; request.setAttribute("msg", "操作成功"); }else { System.out.println("执行失败"); viewName="jsp/order_add.jsp"; request.setAttribute("msg", "操作失败"); } } } break; case "query": List<Orderbean> list =service.queryAll(); request.setAttribute("list", list); viewName="WEB-INF/success.jsp"; break; case "updateView": String id=request.getParameter("id"); Orderbean order=service.queryById(id); if(order==null) { request.setAttribute("mas", "查询失败"); } request.setAttribute("order", order); viewName="jsp/order_add.jsp"; System.out.println(id); break; case "delete": String deleteid=request.getParameter("id"); int result=service.delete(deleteid); if(result>0) { System.out.println("执行成功"); //request.setAttribute("list", service.queryAll()); viewName="order?action=query"; }else { System.out.println("执行失败"); viewName="order?action=query"; } break; default: break; } } catch (SQLException e) { // TODO Auto-generated catch block e.printStackTrace(); } request.getRequestDispatcher(viewName).forward(request, response); } /** * @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response) */ protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }