ASP.NET Core MVC开发实战之商城系统(一)

经过一段时间的准备,新的一期【ASP.NET Core MVC开发实战之商城系统】已经开始,今天着重讲解布局设计,环境搭建,系统配置,及首页商品类型,banner条,友情链接等功能的开发。.
首页布局设计

首页是商城系统的门面,首页设计的好坏关系着用户的体验,在本示例中,首页主要分为以下几个模块,如下所示:

ASP.NET Core MVC开发实战之商城系统(一)

项目环境搭建


1. 安装第三方库
所谓“工欲善其事必先利其器”,在开发程序之前,先将项目配置好。项目需要安装的第三方库,可通过Nuget包管理器进行安装。目前项目用到的第三方库有三个:
  • 日志组件:NLog,NLog.Web.AspNetCore,主要用于记录系统日子。
  • 数据库组件:目前采用SqlSugarCore,访问数据库程序。
具体安装库和版本如下所示:
ASP.NET Core MVC开发实战之商城系统(一)
2. 启动配置
项目启动配置主要配置注入服务,及路由,主要有以下几个:
  • Session服务,由于到进行用户身份验证,所以需要用到Session。
  • 鉴权/授权组件,主要用于什么验证及权限管理。
  • 日志组件,记录程序执行过程的日志,便于问题分析和解决。
  • 路由组件注入。
具体配置【Program.cs】如下所示:
using EasyBuyShop.DAL;using EasyBuyShop.Utils;using Microsoft.AspNetCore.Authentication.Cookies;using NLog.Web; var builder = WebApplication.CreateBuilder(args); // Add services to the container.builder.Services.AddControllersWithViews(); //1. 往容器中添加Session服务,启用Session服务builder.Services.AddSession(option =>{    option.IdleTimeout = TimeSpan.FromMinutes(10);    option.Cookie.Name = "DemoMvcCore";}); //添加鉴权服务builder.Services.AddAuthentication(options =>{    options.DefaultScheme = CookieAuthenticationDefaults.AuthenticationScheme; }).AddCookie(CookieAuthenticationDefaults.AuthenticationScheme, options =>{    options.LoginPath = "/Auth/Login";    options.LogoutPath = "/Auth/Logout";}); // NLog: Setup NLog for Dependency injectionbuilder.Logging.ClearProviders();builder.Host.UseNLog(); LogHelper.LoadConfiguration(); var app = builder.Build(); //启动时获取数据库连接字符串BaseDal.ConnStr = app.Configuration.GetConnectionString("Default"); // Configure the HTTP request pipeline.if (!app.Environment.IsDevelopment()){    app.UseExceptionHandler("/Home/Error");    // The default HSTS value is 30 days. You may want to change this for production scenarios, see https://aka.ms/aspnetcore-hsts.    app.UseHsts();} //2.使用Session中间件,主要用于拦截Http请求app.UseSession(); app.UseHttpsRedirection();app.UseStaticFiles(); app.UseRouting(); app.UseAuthentication(); app.UseAuthorization(); app.MapControllerRoute(    name: "default",    pattern: "{controller=Home}/{action=Index}/{id?}"); app.Run();
3. 配置文件
配置文件【appsetting.json】主要配置数据库连接字符串,及其他信息。如下所示:
{  "ConnectionStrings": {    "Default": "Server=localhost;Database=EasyBuyShop;Trusted_Connection=True;User Id=sa;Password=abc123"  },  "Logging": {    "LogLevel": {      "Default": "Information",      "Microsoft.AspNetCore": "Warning"    }  },  "AllowedHosts": "*"}
4. 日志配置
日志配置【nlog.config】主要配置NLog组件需要的日志保存路径以及层级等信息。如下所示:
<?xml version="1.0" encoding="utf-8" ?><nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"      xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"      autoReload="true"      internalLogLevel="Info"      internalLogFile="\Logs\internal-nlog-AspNetCore.txt">   <!-- enable asp.net core layout renderers -->  <extensions>    <add assembly="NLog.Web.AspNetCore"/>  </extensions>   <!-- the targets to write to -->  <targets>    <!-- File Target for all log messages with basic details -->    <target xsi:type="File" name="allfile" fileName="${basedir}\Logs\nlog-all-${shortdate}.log"        layout="${longdate}|${event-properties:item=EventId:whenEmpty=0}|${level:uppercase=true}|${logger}|${message} ${exception:format=tostring}" />     <!-- File Target for own log messages with extra web details using some ASP.NET core renderers -->    <target xsi:type="File" name="ownFile-web" fileName="${basedir}\Logs\nlog-own-${shortdate}.log"        layout="${longdate}|${event-properties:item=EventId:whenEmpty=0}|${level:uppercase=true}|${logger}|${message} ${exception:format=tostring}|url: ${aspnet-request-url}|action: ${aspnet-mvc-action}" />     <!--Console Target for hosting lifetime messages to improve Docker / Visual Studio startup detection -->    <target xsi:type="Console" name="lifetimeConsole" layout="${MicrosoftConsoleLayout}" />  </targets>   <!-- rules to map from logger name to target -->  <rules>    <!--All logs, including from Microsoft-->    <logger name="*" minlevel="Info" writeTo="allfile" />     <!--Output hosting lifetime messages to console target for faster startup detection -->    <logger name="*" minlevel="Info" writeTo="lifetimeConsole, ownFile-web" final="true" />     <!--Skip non-critical Microsoft logs and so log only own logs (BlackHole) -->    <logger name="Microsoft.*" minlevel="Info" final="true" />    <logger name="System.Net.Http.*" minlevel="Info" final="true" />     <logger name="*" minlevel="Info" writeTo="ownFile-web" />  </rules></nlog>
注意:NLog日志组件不支持相对路径配置,如果想让日志保存在程序根目录,需要通过${basedir}进行配置,否则日志无法保存。

页面布局


其中Header,Footer,前台各个页面都会用到,所以采用Layout布局页面展示【_Layout.cshtml】。如下所示:
<!DOCTYPE html><html lang="en"><head>    <meta charset="utf-8" />    <meta name="viewport" content="width=device-width, initial-scale=1.0" />    <title>@ViewData["Title"] - 易购商城</title>    <link rel="stylesheet" href="~/lib/bootstrap/dist/css/bootstrap.min.css" />    <link rel="stylesheet" href="~/css/shop_style.css" />    <link rel="stylesheet" href="~/css/site.css" asp-append-version="true" />    <link rel="stylesheet" href="~/EasyBuyShop.styles.css" asp-append-version="true" /></head><body>    <header class="py-3 mb-3 border-bottom container" style="padding-left: 0px;padding-right: 0px;">        <div class="container-fluid d-grid gap-3 align-items-center" style="grid-template-columns: 1fr 9fr;width:100%;padding-left: 0px;padding-right: 0px;">            <div class="dropdown">                <a href="/Home/Index" class="d-flex align-items-center col-lg-4 mb-2 mb-lg-0 link-dark text-decoration-none dropdown-toggle">                    <h2>易购商城</h2>                </a>            </div>             <div class="d-flex align-items-center">                <form class="w-100 me-3" role="search" action="/Product/Index/">                    <div>                        <input type="search" class="form-control" placeholder="商品名称" aria-label="Search" style="width:85%;display:inline-block;line-height:1.7" name="productName">                        <button type="submit" class="btn btn-outline-primary">搜索</button>                    </div>                </form>                 <div class="flex-shrink-0 dropdown">                    @if (!string.IsNullOrEmpty(ViewBag.UserName))                    {                        <a href="#" class="d-block link-dark text-decoration-none dropdown-toggle" data-bs-toggle="dropdown" aria-expanded="false">                            <span>@ViewBag.RealName</span>                        </a>                        <ul class="dropdown-menu text-small shadow" style="">                            <li><a class="dropdown-item" href="/Cart/Index">购物车</a></li>                            <li><a class="dropdown-item" href="/Personal/Setting">设置</a></li>                            <li><a class="dropdown-item" href="/Personal/Index">个人信息</a></li>                            <li><hr class="dropdown-divider"></li>                            <li><a class="dropdown-item" href="/Auth/Logout">登出</a></li>                        </ul>                    }                    else                    {                        <a href="/Auth/Login" class="d-block link-dark text-decoration-none">                            <span>亲,请登录</span>                        </a>                    }                                    </div>            </div>        </div>    </header>    <div class="container" style="padding-left:0px;padding-right:0px;">        <main role="main" class="pb-3">            @RenderBody()        </main>    </div>    <footer class="py-3 my-4 border-top footer text-muted" style="line-height:10px;margin-bottom:0.5rem!important;">        <p class="text-center text-muted">© 2023-2024 易购商城 老码识途 公子小六</p>    </footer>    <script src="~/lib/jquery/dist/jquery.min.js"></script>    <script src="~/lib/bootstrap/dist/js/bootstrap.bundle.min.js"></script>    <script src="~/js/site.js" asp-append-version="true"></script>    @await RenderSectionAsync("Scripts", required: false)</body></html>
布局页面效果如下所示:
页头【Header】包含一个Form表单,用于查询商品信息,如下所示:
ASP.NET Core MVC开发实战之商城系统(一)
页脚【Footer】用于设置版权信息,如下所示:
ASP.NET Core MVC开发实战之商城系统(一)

商品类型功能


首先每一个商品有类型,类型分为大类【Category】,中类,小类【SubCategory】,细类等,本文为了简化,只分为大类,小类两种。
1. 数据库设计
大类Category表,如下所示:
ASP.NET Core MVC开发实战之商城系统(一)
建表语句如下所示:
CREATE TABLE [dbo].[EB_Category](  [Id] [bigint] IDENTITY(1,1) NOT NULL,  [Category] [varchar](100) NULL,  [Description] [varchar](500) NULL,  [CreateTime] [datetime] NULL,  [CreateUser] [varchar](50) NULL,  [LastEditTime] [datetime] NULL,  [LastEditUser] [varchar](50) NULL) ON [PRIMARY]
小类SubCategory表,如下所示:
ASP.NET Core MVC开发实战之商城系统(一)
注意:数据表中的分类内容,是从某宝抄下来,整理,然后导入数据库。
建表语句如下所示:
CREATE TABLE [dbo].[EB_SubCategory](  [Id] [bigint] IDENTITY(1,1) NOT NULL,  [CategoryId] [bigint] NULL,  [SubCategory] [varchar](100) NULL,  [Description] [varchar](500) NULL,  [CreateTime] [datetime] NULL,  [CreateUser] [varchar](50) NULL,  [LastEditTime] [datetime] NULL,  [LastEditUser] [varchar](50) NULL) ON [PRIMARY]
2. 项目模型创建
SqlSurgar采用模型对象映射ORM操作数据库,所以需要先创建模型对象。
大类Category模型对象,如下所示:
using SqlSugar; namespace EasyBuyShop.Models{    [SugarTable("EB_Category")]    public class Category : EntityModel    {        [SugarColumn(ColumnName ="Category")]        public string CategoryName { get; set; }         public string Description { get; set; }    }}
小类SubCategory模型对象,如下所示:
using SqlSugar; namespace EasyBuyShop.Models{    [SqlSugar.SugarTable("EB_SubCategory")]    public class SubCategory : EntityModel    {        public long CategoryId { get; set; }         [SugarColumn(ColumnName = "SubCategory")]        public string SubCategoryName { get; set; }        public string Description { get; set; }    }}
其中EntityModel为模型基类,为公共类型,如下所示:
using SqlSugar;using System.ComponentModel.DataAnnotations.Schema;using System.Security.Principal; namespace EasyBuyShop.Models{    public class EntityModel    {        [SugarColumn(IsNullable = false, IsIdentity = true)]        [DatabaseGenerated(DatabaseGeneratedOption.Identity)]        public int Id { get; set; }        public DateTime CreateTime { get; set; }        public string CreateUser { get; set; }        public DateTime LastEditTime { get; set; }        public string LastEditUser { get; set; }    }}
3. 数据库操作类
数据库操作类位于DAL层,每一个表都有对应的DAL层,如下所示:
大类Category数据表操作DAL层,如下所示:
using EasyBuyShop.Models; namespace EasyBuyShop.DAL{    public class CategoryDal:BaseDal    {        public CategoryDal()        {         }         public List<Category> GetCategories()        {            return this.getTList<Category>();        }    }}
小类SubCategory数据表操作DAL层,如下所示:
using EasyBuyShop.Models; namespace EasyBuyShop.DAL{    public class SubCategoryDal : BaseDal    {        public List<SubCategory> GetSubCategories()        {            return this.getTList<SubCategory>();        }    }}
其中BaseDal为基类,数据库操作的公共方法,如下所示:
using EasyBuyShop.Utils;using SqlSugar; namespace EasyBuyShop.DAL{    public class BaseDal    {         public static string ConnStr = string.Empty;        /// <summary>        /// 获取程序数据库操作对象        /// </summary>        /// <param name="strConn">数据库连接字符串</param>        /// <returns></returns>        public SqlSugarClient GetDb(string strConn)        {            var db = new SqlSugarClient(                new ConnectionConfig()                {                    ConnectionString = strConn,                    DbType = DbType.SqlServer,                    IsAutoCloseConnection = true,                    InitKeyType = InitKeyType.Attribute,                    AopEvents = new AopEvents                    {                        OnLogExecuting = (sql, p) =>                        {                            LogHelper.Info(sql);                            LogHelper.Info(string.Join(",", p?.Select(it => it.ParameterName + ":" + it.Value)));                        }                    }                });            return db;        }           /// <summary>        /// 查询所有的用户记录        /// </summary>        /// <returns></returns>        public List<T> getTList<T>()        {            try            {                return this.GetDb(ConnStr).Queryable<T>().ToList();            }            catch (Exception ex)            {                LogHelper.Fatal(ex.Message);                return null;            }        }          /// <summary>        /// 插入一条记录        /// </summary>        /// <param name="model"></param>        /// <returns></returns>        public int InsertT<T>(T model) where T : class, new()        {            try            {                return this.GetDb(ConnStr).Insertable<T>(model).ExecuteCommand();            }            catch (Exception ex)            {                LogHelper.Fatal(ex.Message);                return -1;            }        }     }}
4. 商品类型控制器部分
商品类型只是首页【/Home/Index】的一小部分,所以在首页的控制器获取到商品类型信息,然后传递到视图层即可。如下所示:
public IActionResult Index(){    CategoryDal categoryDal = new CategoryDal();    SubCategoryDal subCategoryDal = new SubCategoryDal();    var categories = categoryDal.GetCategories();    var subCategories = subCategoryDal.GetSubCategories();    ViewData["Categories"] = categories;    ViewData["SubCategories"] = subCategories;    return View();}
5. 商品类型视图部分
商品类型视图在首页【/Home/Index.cshtml】中,如下所示:
<div mxs="x30_:_" class="left-nav" data-spm="1998549605" style="width: 280px;height: 280px;position: absolute;left: 0px;top: 0;z-index: 2;">  <div class="chanel-list-wrap" id="J_MAIN_CHANEL" style="background-color: #F8F8F8;border: 1px solid #eee;border-radius: 12px;font: 12px/1.5 tahoma, arial;height: 100%;">    @foreach(var category in ViewData["Categories"] as List<Category>)    {      var id = category.Id;       var subCategories = ViewData["SubCategories"] as List<SubCategory>;       var subCategoriesById = subCategories.Where(r => r.CategoryId == id);      <div class="chanel-container">        <div class="chanel-container-inner clearfix" style="border-radius: 12px 12px 0 0;">          <div class="chanel-tags-wrap">            <div class="chanel-title">              <a href="" class="atbfont" target="_blank">ↂ</a>              <a href="" class="title" target="_blank">@category.CategoryName</a>            </div>            <div class="chanel-tags clearfix">              @foreach(var subCategory in subCategoriesById)              {                <a href="/Product/Index/?CategoryId=@(id)&subCategoryId=@(subCategory.Id)" class="" target="_blank">@subCategory.SubCategoryName</a>              }            </div>          </div>        </div>      </div>    }  </div></div>
6. 商品类型示例
商品类型示例效果图,如下所示:
ASP.NET Core MVC开发实战之商城系统(一)

banner条及友情链接


banner条主要用于广告位之类的显示,友情链接主要用于链接其他网站或者站内页面。目前banner条设计了两张静态图,友情链接参考了某宝内容,视图文件如下所示:
<div mxa="x30_:b" class="main-right clearfix">  <div mxa="x30_:c" class="main-right-top" style="height: 280px;position: relative;z-index: 1;font-size: 0;">    <div mxa="x30_:d" class="slide-container clearfix">      <div mxa="x30_:e" class="slide-wrap swiper swiper-container-horizontal" id="index-mainSlide">        <div mxa="x30_:f" class="slide-con swiper-wrapper" style="height:280px;position:relative;left:0px;display:flex">          <div class="con-pannel swiper-slide swiper-slide-duplicate-active" data-swiper-slide-index="1">            <a href="#" target="_blank">              <img class="swiper-lazy swiper-lazy-loaded" src="~/imgs/001.jpg" width="730" height="280" />            </a>          </div>          <div class="con-pannel swiper-slide swiper-slide-duplicate-active" data-swiper-slide-index="0">            <a href="#" target="_blank">              <img class="swiper-lazy swiper-lazy-loaded" src="~/imgs/002.jpg" width="730" height="280" />            </a>          </div>          <div class="con-pannel swiper-slide swiper-slide-duplicate-active" data-swiper-slide-index="1">            <a href="#" target="_blank">              <img class="swiper-lazy swiper-lazy-loaded" src="~/imgs/001.jpg" width="730" height="280" />            </a>          </div>          <div class="con-pannel swiper-slide swiper-slide-duplicate-active" data-swiper-slide-index="0">            <a href="#" target="_blank">              <img class="swiper-lazy swiper-lazy-loaded" src="~/imgs/002.jpg" width="730" height="280" />            </a>          </div>        </div>      </div>    </div>    <div mxa="x30_:g" class="bl-right-navigation">      <div mxs="x30_:e" class="right-brands-title" data-spm="19985674830">        <a target="_blank" href="/Home/Index" style="color:#ff0036;"><i class="atbfont">✮</i>我的商城</a>      </div>      <ul mxa="x30_:h" class="right-brands-list clearfix">        <li data-spm="19985674831">          <a target="_blank" href="/Home/Index" style="text-decoration: none!important;">            <i class="atbfont" style="font-size: 22px;color:#c50a0a;">易购商城</i>          </a>        </li>        <li data-spm="19985674832">          <a target="_blank" href="">            <img src="~/imgs/others/taobao.gif" width="119" height="61">          </a>        </li>        <li data-spm="19985674833">          <a target="_blank" href="">            <img src="~/imgs/others/juhuasuan.gif" width="119" height="61">          </a>        </li>        <li data-spm="19985674834">          <a target="_blank" href="">            <img src="~/imgs/others/chaojiyouxuan.png" width="119" height="61">          </a>        </li>        <li data-spm="19985674835">          <a target="_blank" href="" style="text-decoration: none!important;">            <i class="atbfont" style="font-size: 22px;color:#ff4400;">九块九</i>          </a>        </li>        <li data-spm="19985674836">          <a target="_blank" href="">            <img src="~/imgs/others/tianmaoguoji.png" width="119" height="61">          </a>        </li>        <li data-spm="19985674837">          <a target="_blank" href="">            <img src="~/imgs/others/tianmaochaoshi.gif" width="119" height="61">          </a>        </li>        <li data-spm="19985674838">          <a target="_blank" href="">            <img src="~/imgs/others/ailijiankang.png" width="119" height="61">          </a>        </li>      </ul>    </div>  </div></div>
banner条及友情链接效果图如下所示:

ASP.NET Core MVC开发实战之商城系统(一)

以上就是ASP.NET Core MVC开发实战之商城系统(一) 的全部内容,后续将继续介绍其他模块。关于本系列其他文章,可参考以下链接:
ASP.NET Core MVC开发实战之商城系统(开篇)