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ASP.NET MVC3手把手教你构建Web

2020-01-17 23:09:09
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开发工具:VS2010+MSSQL2005,需要使用MVC3.0

环境配置

第一步:到官方网站下载MVC3,提供了简体中文。先安装 AspNetMVC3ToolsUpdateSetup.exe,然后安装AspNetMVC3ToolsUpdateVS11Setup.exe

http://www.microsoft.com/download/en/details.aspx?displaylang=en&id=1491

第二步:新建数据库,创建测试表。然后往表里insert些测试数据

USE [yanComdb] GO /****** 对象: Table [dbo].[NewsEntity] 脚本日期: 03/12/2012 22:03:59 ******/ SET ANSI_NULLS ON GO SET QUOTED_IDENTIFIER ON GO CREATE TABLE [dbo].[NewsEntity](  [NId] [int] IDENTITY(1,1) NOT NULL,  [Title] [nvarchar](100) COLLATE Chinese_PRC_CI_AS NOT NULL,  [Information] [text] COLLATE Chinese_PRC_CI_AS NULL,  [Time] [datetime] NOT NULL CONSTRAINT [DF_NewsEntity_Time] DEFAULT (getdate()),  CONSTRAINT [PK_NewsEntity] PRIMARY KEY CLUSTERED (  [NId] ASC )WITH (PAD_INDEX = OFF, IGNORE_DUP_KEY = OFF) ON [PRIMARY] ) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY] 

构建列表页面

第一步:打开VS,新建选择MVC3 web应用程序,输入项目名称以及目录

第二步:创建NewsEntity类,本文使用自己手写实体类(没有使用LinqtoSql,EF等orm)

[TableAttribute("NewsEntity")]//这行很重要,因为mvc框架默认去db中找类名复数的表名  public class NewsEntity  {   [Key]//设置主键   public int NId { get; set; }    [StringLength(100)]//设置验证信息   [Required(ErrorMessage="标题不能为空")]   [DisplayName("标题")]   public string Title { get; set; }    [Required(ErrorMessage = "正文必须填写")]   [DisplayName("正文")]   public string Information { get; set; }    public DateTime Time { get; set; }  } 

第三步:配置数据库连接字符,注意此处的name对应下一步中创建的类名。

<connectionStrings> <add name="ProjectEntity" connectionString="Data Source=ip;Initial Catalog=yanComdb;Persist Security Info=True;User ID=;Password=" providerName="System.Data.SqlClient" /> </connectionStrings> 

第四步:创建ProjectEntity类,需要继承DbContext

public class ProjectEntity : DbContext  {   public DbSet<NewsEntity> NewsEntity { get; set; }  } 

第五步:新建Controller,

ProjectEntity PE = new ProjectEntity();   public ActionResult News()   {    try    {     var list = PE.NewsEntity.ToList();     return View(list);    }    catch (Exception e)    {     throw e;    }   } 

第六步:在News上右键,新建视图。勾选“创建强类型视图”,选择NewsEntity,支架模块选择List


添加后,cshtml代码如下:

@model IEnumerable<TaiQiu.Models.NewsEntity> @{  ViewBag.Title = "后台新闻管理列表";  Layout = "~/Views/Shared/_MLayout.cshtml"; } <h2>  新闻列表</h2> <p>  @Html.ActionLink("添加", "Create") </p> <table>  <tr>   <th width="50px">    ID   </th>   <th width="300px">    标题   </th>   <th width="150px">    时间   </th>   <th>   </th>  </tr>  @foreach (var item in Model)  {   <tr>    <td>     @Html.DisplayFor(modelItem => item.NId)    </td>    <td>     @Html.DisplayFor(modelItem => item.Title)    </td>    <td>     @Html.DisplayFor(modelItem => item.Time)    </td>    <td>     @Html.ActionLink("编辑", "EditNews", new { id = item.NId }) |     @Html.ActionLink("删除", "DeleteNews", new { id=item.NId })    </td>   </tr>  } </table> 

运行后效果图如下:


到此,第一个列表页面就完成了(未涉及分页,后续会更新)。关于添加,修改,删除也就很容易了。

添加Controller代码:

[HttpPost]   [ValidateInput(false)]   public ActionResult Create(NewsEntity news)   {    if (ModelState.IsValid)    {     news.Time = DateTime.Now;     PE.NewsEntity.Add(news);     try     {      PE.SaveChanges();      return RedirectToAction("News");     }     catch (Exception e)     {      throw e;     }     }    return View();   } 

添加页面:

@model TaiQiu.Models.NewsEntity @{  ViewBag.Title = "添加新闻";  Layout = "~/Views/Shared/_MLayout.cshtml"; } <h2>  添加新闻</h2> <script src="@Url.Content("~/Scripts/jquery.validate.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/jquery.validate.unobtrusive.min.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/kindeditor/kindeditor.js")" type="text/javascript"></script> <script src="@Url.Content("~/Scripts/kindeditor/lang/zh_CN.js")" type="text/javascript"></script> <script type="text/javascript">   var editor;   KindEditor.ready(function (K) {    editor = K.create('textarea[name="Information"]', {     allowFileManager: true    });   }); </script> @using (Html.BeginForm()) {  @Html.ValidationSummary(true)  <fieldset>   <legend>News</legend>   <div class="editor-label">    @Html.LabelFor(model => model.Title)   </div>   <div class="editor-field">    @Html.TextBoxFor(model => model.Title, new { style = "width:500px" })    @Html.ValidationMessageFor(model => model.Title)   </div>   <div class="editor-label">    @Html.LabelFor(model => model.Information)   </div>   <div class="editor-field">    @Html.TextAreaFor(model => model.Information, new { style="width:800px;height:400px"})    @Html.ValidationMessageFor(model => model.Information)   </div>   <p>    <input type="submit" value="Create" />   </p>  </fieldset> } <div>  @Html.ActionLink("返回列表", "Index") </div> 

修改页面一样,Controller稍微有点修改:

[HttpPost]   [ValidateInput(false)]   public ActionResult EditNews(NewsEntity news)   {    if (ModelState.IsValid)    {     news.Time = DateTime.Now;     PE.Entry(news).State = EntityState.Modified;//修改     PE.SaveChanges();     return RedirectToAction("News");    }    return View(news);   } 

删除Controller代码:

public ActionResult DeleteNews(int id)   {    var model = PE.NewsEntity.Find(id);    PE.NewsEntity.Remove(model);    PE.SaveChanges();    return RedirectToAction("News");   } 

小编刚接触MVC3,本文也只是本人学习中的一点点积累,有很多不好的地方,希望大家多提意思。

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