• MVC新闻提交小练习+Session登录提交练习


    控制器端代码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Mvc;
    using MvcApplication9.Models;
    
    namespace MvcApplication9.Controllers
    {
        public class NewsController : Controller
        {
            //
            // GET: /News/
    
            public ActionResult Add()
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                return View();
            }
            public ActionResult Insert(string title,string author,string sourse,string content)
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                DateTime dt = DateTime.Now;
                new NewsDA().Insert(title,author,sourse,content);
                return RedirectToAction("Add");
            }
            public ActionResult Index()
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                List<News> list = new NewsDA().Select();
                return View(list);
            }
            public ActionResult Edit(int newsid)
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                News data = new NewsDA().Select(newsid);
                return View(data);
            }
            public ActionResult Update(int newsid,string title, string author, string sourse, string content)
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                new NewsDA().Update(newsid,title, author, sourse, content);
                return RedirectToAction("Index");
            }
            public ActionResult Delete(int newsid)
            {
                if (Session["user"] == null)
                {
                    return RedirectToAction("Index", "Login");
                }
                new NewsDA().Delete(newsid);
                return RedirectToAction("Index");
            }
        }
    }

    新闻添加页面代码:

    @{
        Layout = null;
    }
    @using MvcApplication9.Models;
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>Add</title>
        <style type="text/css">
            .test {
                400px;
            }
            .test1 {
                400px;
                height:350px;
            }
            </style>
    </head>
    <body>
        <div>
            @using(Html.BeginForm("Insert","News", FormMethod.Post)){
            <h1>新闻发布</h1>
            <div>
              
                <div>
                标题:@Html.TextBox("title", "",new { @class="test"})<br/>
                作者:@Html.TextBox("author", "", new { @class="test"})<br/> 
                来源:@Html.TextBox("sourse", "", new { @class="test"})<br/>
                内容:@Html.TextArea("content", "", new { @class="test"})<br/>   
                <input id="Submit1" type="submit" value="提交" />  <a href="/News/Index"><input id="Button1" type="button" value="查看" /></a> @Html.ActionLink("查看", "Index", "News", new { }, new { })
                  
                </div>
        </div>
            }
    </body>
    </html>

    新闻修改视图:

    @{
        Layout = null;
    }
    @model News
    @using MvcApplication9.Models;
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>Add</title>
        <style type="text/css">
            .test {
                400px;
            }
            .test1 {
                400px;
                height:350px;
            }
            </style>
    </head>
    <body>
        <div>
            @using(Html.BeginForm("Update","News", FormMethod.Post)){
            <h1>新闻发布</h1>
            <div>
              
                <div>
                @Html.HiddenFor(p=>p.newsid)
                标题:@Html.TextBoxFor(p=>p.title) <br/>
                作者:@Html.TextBoxFor(p=>p.author) <br/> 
                来源:@Html.TextBoxFor(p=>p.sourse) <br/>
                内容:@Html.TextAreaFor(p=>p.content) <br/> 
                @Html.HiddenFor(p=>p.time)  
                <input id="Submit1" type="submit" value="提交" /> 
                  
                </div>
        </div>
            }
    </body>
    </html>
    @{
        Layout = null;
    }
    
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>Edit</title>
    </head>
    <body>
        <div>
            
        </div>
    </body>
    </html>

    新闻主界面视图:

    @{
        Layout = null;
    }
    @using MvcApplication9.Models;
    @model List<News>
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>Index</title>
        <style type="text/css">
            
            .tbhead {
                background-color:navy;
                text-align:center;
                color:white;
                font-weight:bold;
            }
            .tbrow {
                text-align:center;
                background-color:#FFFFcc;
            }
        </style>
    </head>
    <body>
        <div>
            <table id="tbinfo" width="100%" cellpadding="4" cellspacing="1" bgcolor="black" border="0">
                <tr class="tbhead">
                    <td>新闻代号</td>
                    <td>新闻标题</td>
                    <td>作者</td>
                    <td>来源</td>
                    <td>内容</td>
                    <td>时间</td>
                </tr>
      
              @{ 
                  foreach( News data in Model)
                  {
                <tr class="tbrow">
                    <td>@data.newsid</td>
                    <td>@data.title</td>
                    <td>@data.author</td>
                    <td>@data.sourse</td>
                    <td>@data.content</td>
                    <td>@data.time</td>
                    <td>
                        @Html.ActionLink("修改", "Edit", "News", new {newsid=data.newsid}, new { })
                        @Html.ActionLink("删除", "Delete", "News", new {newsid = data.newsid }, new { onclick="return confirm('确认要删除吗?')"})
                    </td>
                </tr>
                }
              }
            </table>
            @Html.ActionLink("添加人员", "Add", "News")
        </div>
    </body>
    </html>

    新闻Model层方法代码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    
    namespace MvcApplication9.Models
    {
        public class NewsDA
        {
            private newsDataContext _Context = new newsDataContext();
            public List<News> Select()
            {
                return _Context.News.ToList();
            }
            public News Select(int id)
            {
                var query = _Context.News.Where(p => p.newsid == id);
                if (query.Count() > 0)
                {
                    return query.First();
                }
                return null;
            }
            public void Insert( string til, string aut, string sou, string con)
            {
                News data = new News
                {
                    title = til,
                    author = aut,
                    sourse = sou,
                    content = con,
                    time = DateTime.Now,
                };
                _Context.News.InsertOnSubmit(data);
                _Context.SubmitChanges();
            }
            public void Delete(int id)
            {
                var query = _Context.News.Where(p => p.newsid == id);
                if (query.Count() > 0)
                {
                    News data = query.First();
                    _Context.News.DeleteOnSubmit(data);
                    _Context.SubmitChanges();
                }
            }
            public void Update(int id,string til, string aut, string sou, string con)
            {
                var query = _Context.News.Where(p => p.newsid == id);
                if (query.Count() > 0)
                {
                    News data = query.First();
                    data.title = til;
                    data.author = aut;
                    data.sourse = sou;
                    data.content = con;
                    //data.time = DateTime.Now;//随时修改修改时间
                    _Context.SubmitChanges();
                }
            }
        }
    }

    登录界面控制器代码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    using System.Web.Mvc;
    using MvcApplication9.Models;
    
    namespace MvcApplication9.Controllers
    {
        public class LoginController : Controller
        {
            //
            // GET: /Login/
    
            public ActionResult Index()
            {
                return View();
            }
            public ActionResult CheckUidPwd(string uid, string pwd)
            {
                bool isOK = new LoginDA().Login(uid, pwd);
                if (isOK)
                {
                    //保存状态
                    Session["user"] = uid;
                    //跳转界面
                    return RedirectToAction("Index", "News");
                }
                else
                {
                    return RedirectToAction("Index");
                }
            }
        }
    }

    登录视图代码:

    @using MvcApplication9.Models;
    @{
        Layout = null;
    }
    
    <!DOCTYPE html>
    
    <html>
    <head>
        <meta name="viewport" content="width=device-width" />
        <title>Index</title>
    </head>
    <body>
        <div>
            <h1>登录</h1>
            @using(Html.BeginForm("CheckUidPwd","Login")){
            <div>
                用户名:@Html.TextBox("uid")<br/>
                密码:@Html.Password("pwd")<br/>
                <input type="submit" value="登录" />
            </div>
            }
        </div>
    </body>
    </html>

    登录Model层方法代码:

    using System;
    using System.Collections.Generic;
    using System.Linq;
    using System.Web;
    
    namespace MvcApplication9.Models
    {
        public class LoginDA
        {
            private newsDataContext _Context = new newsDataContext();
            public bool Login(string userName, string password)
            {
                var query = _Context.Login.Where(p => p.Username == userName && p.Password == password);
                return query.Count() > 0;
            }
        }
    }
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  • 原文地址:https://www.cnblogs.com/dlexia/p/4649191.html
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