asp.net MVC2 初探十五

今天做个简单的登录页面，前些天用Nhibernate实体映射出了不少问题。老板有换ADO.NET ENTITY DATA MODEL 的冲动。先看看实体模型。

 

接着再看看控制器

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.Mvc;
namespace TestExample.Controllers
{
         public class LoginController : Controller
        {
                 //
                 // GET: /Login/
                TestExample.Models.testEntities2 t = new Models.testEntities2();
                 public ActionResult Index()
                {
                        ViewData.Model = t.SS_USER;
                         return View();
                }

                 public ActionResult Login()
                {
                         return View( "Login");
                }

                [HttpPost]
                 public ActionResult Login(FormCollection fc)
                {
                         string userName = fc[0];
                         string password = fc[1];
                        var x = from m in t.SS_USER where m.C_USER_PW == password && m.C_USER_NM == userName select m;
                         if (x != null && x.ToList().Count > 0)
                        {
                                 return RedirectToAction( "Index");
                        }
                         else
                        {
                                ViewData.Add( "msg", "用户名或者密码不正确");
                                 return View( "Login");
                        }
                }
        }
}

再看看我的View页面

< %@ Page Title ="" Language="C#" MasterPageFile ="~/Views/Shared/Site.Master" Inherits="System.Web.Mvc.ViewPage<TestExample.Models.SS_USER >" %>

< asp:Content ID ="Content1" ContentPlaceHolderID ="TitleContent" runat ="server" >
        ViewPage1
</asp:Content>
< asp:Content ID ="Content2" ContentPlaceHolderID ="MainContent" runat ="server" >
         < h2 >
                ViewPage1 </h2>
         < script language ="javascript" type ="text/javascript" >
                function validate() {
                        if (document.getElementById("UserName").getAttribute("value") == "") {
                                userValidate.innerHTML = " < font color=red >用户名不能为空 </font>";
                                return false;
                        }
                        else {
                                userValidate.innerHTML = "";
                        }
                        if (document.getElementById("Pwd").getAttribute("value") == "") {
                                pwdValidate.innerHTML = " < font color=red >密码不能为空 </font>";
                                return false;
                        }
                        else {
                                pwdValidate.innerHTML = "";
                        }
                }

                function validateEmpty(id, tdId) {
                        if (document.getElementById(id).getAttribute("value") != "") {
                                tdId.innerHTML = "";
                        }
                }
         </script>
        <% using (Html.BeginForm("Login", "Login", FormMethod.Post))
             { %>
         < table style ="width: 40%;" >
                 < tr >
                         < td >
                                用户名：
                         </td>
                         < td >
                                 < %: Html.TextBoxFor(Model = > Model.C_USER_NM, new { id = "UserName", onblur = "validateEmpty('UserName',userValidate)" })%>
                         </td>
                         < td id ="userValidate" >
                         </td>
                 </tr>
                 < tr >
                         < td >
                                密码：
                         </td>
                         < td >
                                 < %: Html.TextBoxFor(Model = > Model.C_USER_PW, new { id = "Pwd", onblur = "validateEmpty('Pwd',pwdValidate)" })%>
                         </td>
                         < td id ="pwdValidate" >
                         </td>
                 </tr>
                 < tr >
                         < td colspan ="3" style ="text-align: center" >
                                 < input type ="submit" value ="登录" onclick ="return validate()" />
                                 < input type ="reset" value ="重置" />
                         </td>
                 </tr>
                 < tr >
                         < td style ="color: Red" colspan ="3" >
                                 < %=ViewData["msg"] == null ? "" : ViewData["msg"]% >
                         </td>
                 </tr>
         </table>
         < %} % >
</asp:Content>

这里我们进行了非空验证和用户名密码正确性的验证。运行效果如下

最后我在用Nhibernate2.0.1的时候发现在执行如下的Save方法的时候如果映射文件里面包含DateTime类型，就会报日期溢出错误

public class HibernateSave<T, PK> : IHibernateCallback
        {
                 private T entity;
                 private PK pk;
                 public HibernateSave(T t)
                {
                         this.entity = t;
                }
                 public object DoInHibernate(ISession session)
                {
                        session.FlushMode = FlushMode.Auto;
                        pk = (PK)session.Save(entity);
                        session.Flush();
                         return pk;
                }
        }

经过SqlServer自带的跟踪我发现发送给数据库服务器的SQL语句只要是DateTime类型的都带的是双引号。如下

着实很郁闷，那位仁兄如果解决过这个问题，请联系我。