本次参考学习了

https://www.cnblogs.com/ymnets/p/3424309.htmlC

这个人的教程

但是由于时代久远，教程节奏快，版本的问题。对于初学者来说，很不友好。

正好我也要学习，所以自己重新写一下，顺带改一改其中的小bug。

系统目标：实现一个权限管理案例用户—角色—权限

本节目标：采用IOC控制反转

1.Unity

vs2017 有Nu Get工具

右键项目打开这个工具

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

下载安装这个包

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

在Apps.Core中添加以下2个类：主要是注入配置使用

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

DependencyRegisterType

using Apps.App.BLL;
using Apps.App.DAL;
using Apps.App.IBLL;
using Apps.App.IDAL;
using Unity;

namespace App.Core
{
    public class DependencyRegisterType
    {
        //系统注入
        public static void Container_Sys(ref UnityContainer container)
        {
            container.RegisterType<ISysSampleBLL, SysSampleBLL>();//样例
            container.RegisterType<ISysSampleRepository, SysSampleRepository>();
        }
    }
}

UnityDependencyResolver

using System;
using System.Collections.Generic;
using System.Web;
using System.Web.Mvc;
using Unity;

namespace App.Core
{
    public class UnityDependencyResolver : IDependencyResolver
    {
        private const string HttpContextKey = "perRequestContainer";

        private readonly IUnityContainer _container;

        public UnityDependencyResolver(IUnityContainer container)
        {
            _container = container;
        }

        public object GetService(Type serviceType)
        {
            if (typeof(IController).IsAssignableFrom(serviceType))
            {
                return ChildContainer.Resolve(serviceType);
            }

            return IsRegistered(serviceType) ? ChildContainer.Resolve(serviceType) : null;
        }

        public IEnumerable<object> GetServices(Type serviceType)
        {
            if (IsRegistered(serviceType))
            {
                yield return ChildContainer.Resolve(serviceType);
            }

            foreach (var service in ChildContainer.ResolveAll(serviceType))
            {
                yield return service;
            }
        }

        protected IUnityContainer ChildContainer
        {
            get
            {
                var childContainer = HttpContext.Current.Items[HttpContextKey] as IUnityContainer;

                if (childContainer == null)
                {
                    HttpContext.Current.Items[HttpContextKey] = childContainer = _container.CreateChildContainer();
                }

                return childContainer;
            }
        }

        public static void DisposeOfChildContainer()
        {
            var childContainer = HttpContext.Current.Items[HttpContextKey] as IUnityContainer;

            if (childContainer != null)
            {
                childContainer.Dispose();
            }
        }

        private bool IsRegistered(Type typeToCheck)
        {
            var isRegistered = true;

            if (typeToCheck.IsInterface || typeToCheck.IsAbstract)
            {
                isRegistered = ChildContainer.IsRegistered(typeToCheck);

                if (!isRegistered && typeToCheck.IsGenericType)
                {
                    var openGenericType = typeToCheck.GetGenericTypeDefinition();

                    isRegistered = ChildContainer.IsRegistered(openGenericType);
                }
            }

            return isRegistered;
        }
    }
}

在系统开始运行时候我们就把构造函数注入。所以我们要在Global文件写入代码

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

2.自定义Model

前一节我们已经做过这部分工作了

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Web;

namespace Apps.Models.Sys
{
    public class SysSampleModel
    {
        [Display(Name = "ID")]
        public string Id { get; set; }


        [Display(Name = "名称")]
        public string Name { get; set; }


        [Display(Name = "年龄")]
        [Range(0, 10000)]
        public int? Age { get; set; }

        [Display(Name = "生日")]
        public DateTime? Bir { get; set; }

        [Display(Name = "照片")]
        public string Photo { get; set; }


        [Display(Name = "简介")]
        public string Note { get; set; }

        [Display(Name = "创建时间")]
        public DateTime? CreateTime { get; set; }
    }
}

3.修改部分代码

SysSampleBLL
ISysSampleBLL
SysSampleController
前台的视图

<1>SysSampleBLL

using Apps.App.IBLL;
using Apps.App.IDAL;
using Apps.App.Models;
using Apps.Models.Sys;
using System;
using System.Collections.Generic;
using System.Linq;
using Unity;

namespace Apps.App.BLL
{
    public class SysSampleBLL : ISysSampleBLL
    {
        DBContainer db = new DBContainer();
        [Dependency]
        public ISysSampleRepository Rep { get; set; }
        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="pager">JQgrid分页</param>
        /// <param name="queryStr">搜索条件</param>
        /// <returns>列表</returns>
        public List<SysSampleModel> GetList(string queryStr)
        {

            IQueryable<SysSample> queryData = null;
            queryData = Rep.GetList(db);
            return CreateModelList(ref queryData);
        }
        private List<SysSampleModel> CreateModelList(ref IQueryable<SysSample> queryData)
        {


            List<SysSampleModel> modelList = (from r in queryData
                                              select new SysSampleModel
                                              {
                                                  Id = r.Id,
                                                  Name = r.Name,
                                                  Age = r.Age,
                                                  Bir = r.Bir,
                                                  Photo = r.Photo,
                                                  Note = r.Note,
                                                  CreateTime = r.CreateTime,

                                              }).ToList();

            return modelList;
        }

        /// <summary>
        /// 创建一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="model">模型</param>
        /// <returns>是否成功</returns>
        public bool Create(SysSampleModel model)
        {
            try
            {
                SysSample entity = Rep.GetById(model.Id);
                if (entity != null)
                {
                    return false;
                }
                entity = new SysSample();
                entity.Id = model.Id;
                entity.Name = model.Name;
                entity.Age = model.Age;
                entity.Bir = model.Bir;
                entity.Photo = model.Photo;
                entity.Note = model.Note;
                entity.CreateTime = model.CreateTime;

                if (Rep.Create(entity) == 1)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (Exception ex)
            {
                //ExceptionHander.WriteException(ex);
                return false;
            }
        }
        /// <summary>
        /// 删除一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="id">id</param>
        /// <returns>是否成功</returns>
        public bool Delete(string id)
        {
            try
            {
                if (Rep.Delete(id) == 1)
                {
                    return true;
                }
                else
                {
                    return false;
                }
            }
            catch (Exception ex)
            {
                return false;
            }
        }

        /// <summary>
        /// 修改一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="model">模型</param>
        /// <returns>是否成功</returns>
        public bool Edit(SysSampleModel model)
        {
            try
            {
                SysSample entity = Rep.GetById(model.Id);
                if (entity == null)
                {
                    return false;
                }
                entity.Name = model.Name;
                entity.Age = model.Age;
                entity.Bir = model.Bir;
                entity.Photo = model.Photo;
                entity.Note = model.Note;


                if (Rep.Edit(entity) == 1)
                {
                    return true;
                }
                else
                {

                    return false;
                }

            }
            catch (Exception ex)
            {

                //ExceptionHander.WriteException(ex);
                return false;
            }
        }
        /// <summary>
        /// 判断是否存在实体
        /// </summary>
        /// <param name="id">主键ID</param>
        /// <returns>是否存在</returns>
        public bool IsExists(string id)
        {
            if (db.SysSample.SingleOrDefault(a => a.Id == id) != null)
            {
                return true;
            }
            return false;
        }
        /// <summary>
        /// 根据ID获得一个实体
        /// </summary>
        /// <param name="id">id</param>
        /// <returns>实体</returns>
        public SysSampleModel GetById(string id)
        {
            if (IsExist(id))
            {
                SysSample entity = Rep.GetById(id);
                SysSampleModel model = new SysSampleModel();
                model.Id = entity.Id;
                model.Name = entity.Name;
                model.Age = entity.Age;
                model.Bir = entity.Bir;
                model.Photo = entity.Photo;
                model.Note = entity.Note;
                model.CreateTime = entity.CreateTime;

                return model;
            }
            else
            {
                return new SysSampleModel();
            }
        }

        /// <summary>
        /// 判断一个实体是否存在
        /// </summary>
        /// <param name="id">id</param>
        /// <returns>是否存在 true or false</returns>
        public bool IsExist(string id)
        {
            return Rep.IsExist(id);
        }
    }
}

<2>ISysSampleBLL

using Apps.App.Common;
using Apps.Models.Sys;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace Apps.App.IBLL
{
    public interface ISysSampleBLL
    {
        /// <summary>
        /// 获取列表
        /// </summary>
        /// <param name="pager">JQgrid分页</param>
        /// <param name="queryStr">搜索条件</param>
        /// <returns>列表</returns>
        List<SysSampleModel> GetList(string queryStr);
        /// <summary>
        /// 创建一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="model">模型</param>
        /// <returns>是否成功</returns>
        bool Create(SysSampleModel model);
        /// <summary>
        /// 删除一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="id">id</param>
        /// <returns>是否成功</returns>
        bool Delete(string id);

        /// <summary>
        /// 修改一个实体
        /// </summary>
        /// <param name="errors">持久的错误信息</param>
        /// <param name="model">模型</param>
        /// <returns>是否成功</returns>
        bool Edit(SysSampleModel model);
        /// <summary>
        /// 根据ID获得一个Model实体
        /// </summary>
        /// <param name="id">id</param>
        /// <returns>Model实体</returns>
        SysSampleModel GetById(string id);
        /// <summary>
        /// 判断是否存在实体
        /// </summary>
        /// <param name="id">主键ID</param>
        /// <returns>是否存在</returns>
        bool IsExist(string id);
    }
}

<3>SysSampleController

using Apps.App.IBLL;
using Apps.Models.Sys;
using System.Collections.Generic;
using System.Web.Mvc;
using Unity;

namespace Apps.Controllers
{
    public class SysSampleController : Controller
    {
        //
        // GET: /SysSample/
        /// <summary>
        /// 业务层注入
        /// </summary>
        [Dependency]
        public ISysSampleBLL m_BLL { get; set; }
        public ActionResult Index()
        {
            List<SysSampleModel> list = m_BLL.GetList("");
            return View(list);
        }

    }
}

<4>前台的视图

@model List<Apps.Models.Sys.SysSampleModel>

@{
    Layout = null;
}

<!DOCTYPE html>

<html>
<head>
    <meta name="viewport" content="width=device-width" />
    <title>Index</title>
</head>
<body>
    <p>
        @Html.ActionLink("Create New", "Create")
    </p>
    <table>
        <tr>
            <th>
                名称
            </th>
            <th>
                年龄
            </th>
            <th>
                生日
            </th>
            <th>
                照片
            </th>
            <th>
                备注
            </th>
            <th>
                创建时间
            </th>
            <th></th>
        </tr>

        @foreach (var item in Model)
        {
            <tr>
                <td>
                    @Html.DisplayFor(modelItem => item.Name)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Age)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Bir)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Photo)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.Note)
                </td>
                <td>
                    @Html.DisplayFor(modelItem => item.CreateTime)
                </td>
                <td>
                    @Html.ActionLink("Edit", "Edit", new { id = item.Id }) |
                    @Html.ActionLink("Details", "Details", new { id = item.Id }) |
                    @Html.ActionLink("Delete", "Delete", new { id = item.Id })
                </td>
            </tr>
        }

    </table>
</body>
</html>

运行截图

没啥变化，就对了。

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

4.总结

仔细对比代码不同的地方

建议可以看看原文，深入理解一下原理

好了我们这一节的小任务就算完成了，不足的地方欢迎批评指正

ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

系统目标：实现一个权限管理案例用户—角色—权限

1.Unity

2.自定义Model

3.修改部分代码

4.总结

继续阅读

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ASP.NET MVC5+EF6+EasyUI 后台管理系统（5）1.Unity2.自定义Model3.修改部分代码4.总结

系统目标：实现一个权限管理案例 用户—角色—权限

1.Unity

2.自定义Model

3.修改部分代码

4.总结

继续阅读

系统目标：实现一个权限管理案例用户—角色—权限