DDD领域驱动设计初探（7）：Web层的搭建_html/css_WEB-ITnose

前言：好久没更新博客了，每天被该死的业务缠身，今天正好一个模块完成了，继续来完善我们的代码。之前的六篇完成了领域层、应用层、以及基础结构层的部分代码，这篇打算搭建下UI层的代码。

一、UI层介绍

在DDD里面，UI层的设计也分为BS和CS，本篇还是以Web为例来说明。我们的Web采用的是MVC+bootstrap的架构。Table组件使用的是bootstrap table，之所以用它是因为它的API比较全，并且博主觉得它的风格适用于各种类型的设备，无论是PC端还是手机端都都能很好的兼容各种浏览器。

这里还是贴出bootstrap API的相关地址。

Bootstrap中文网：http://www.bootcss.com/

Bootstrap Table Demo：http://issues.wenzhixin.net.cn/bootstrap-table/index.html

Bootstrap Table API：http://bootstrap-table.wenzhixin.net.cn/zh-cn/documentation/

Bootstrap Table源码：https://github.com/wenzhixin/bootstrap-table

Bootstrap DataPicker：http://www.bootcss.com/p/bootstrap-datetimepicker/

Bootstrap离线API

二、代码示例

上篇完成了WCF的设计代码，但是具体的业务逻辑的代码还没有，我们先来实现具体业务的CURD代码。

1、WCF代码

1.1 WCF服务业务接口代码

    ///     /// 权限管理模块接口契约    ///     [ServiceContract]    [ServiceInterface]    public interface IPowerManageWCFService    {        #region 用户管理        [OperationContract]        List GetUsers(ExpressionNode expressionNode);        [OperationContract]        DTO_TB_USERS AddUser(DTO_TB_USERS oUser);        [OperationContract]        bool DeleteUser(DTO_TB_USERS oUser);        [OperationContract]        bool DeleteUserByLamada(ExpressionNode expressionNode);        [OperationContract]        bool UpdateUser(DTO_TB_USERS oUser);        #endregion        #region 部门管理        [OperationContract]        List GetDepartments(ExpressionNode expressionNode);        [OperationContract]        DTO_TB_DEPARTMENT AddDepartment(DTO_TB_DEPARTMENT oDept);        [OperationContract]        bool DeleteDepartment(DTO_TB_DEPARTMENT oDept);        [OperationContract]        bool DeleteDeptByLamada(ExpressionNode expressionNode);        [OperationContract]        bool UpdateDepartment(DTO_TB_DEPARTMENT oDept);        #endregion        #region 角色管理        [OperationContract]        List GetRoles(ExpressionNode expressionNode);        [OperationContract]        DTO_TB_ROLE AddRole(DTO_TB_ROLE oRole);        #endregion        #region 菜单管理        [OperationContract]        List GetMenus(ExpressionNode expressionNode);        [OperationContract]        DTO_TB_MENU AddMenu(DTO_TB_MENU oMenu);        #endregion    }

1.2 WCF接口实现代码：

[ServiceClass]    public class PowerManageWCFService :BaseService, IPowerManageWCFService    {        #region Fields        [Import]        private IUserRepository userRepository { get; set; }        [Import]        private IDepartmentRepository departmentRepository { get; set; }        [Import]        private IRoleRepository roleRepository { get; set; }        [Import]        private IMenuRepository menuRepository { get; set; }         #endregion        #region Constust        public PowerManageWCFService()        {        }        #endregion        #region WCF服务接口实现        #region 用户管理        //这里参数为什么不直接用Expression>这种类型，是因为Expression不支持序列化，无法用于WCF数据的传递        public List GetUsers(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            var lstRes = base.GetDtoByLamada(userRepository, selector);            return lstRes;        }        public DTO_TB_USERS AddUser(DTO_TB_USERS oUser)        {            return base.AddDto(userRepository, oUser);        }        public bool DeleteUser(DTO_TB_USERS oUser)        {            var bRes = false;            try            {                base.DeleteDto(userRepository, oUser);                bRes = true;            }            catch            {             }            return bRes;        }        public bool DeleteUserByLamada(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            var bRes = false;            try            {                base.DeleteDto(userRepository, selector);                bRes = true;            }            catch            {            }            return bRes;        }        public bool UpdateUser(DTO_TB_USERS oUser)        {            var bRes = false;            try            {                base.UpdateDto(userRepository, oUser);                bRes = true;            }            catch            {            }            return bRes;        }        #endregion        #region 部门管理        public List GetDepartments(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            return base.GetDtoByLamada(departmentRepository, selector);        }        public DTO_TB_DEPARTMENT AddDepartment(DTO_TB_DEPARTMENT oDept)        {            return base.AddDto(departmentRepository, oDept);        }        public bool DeleteDepartment(DTO_TB_DEPARTMENT oDept)        {            var bRes = false;            try            {                base.DeleteDto(departmentRepository, oDept);                bRes = true;            }            catch            {             }            return bRes;        }        public bool DeleteDeptByLamada(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            var bRes = false;            try            {                base.DeleteDto(departmentRepository, selector);                bRes = true;            }            catch            {            }            return bRes;        }        public bool UpdateDepartment(DTO_TB_DEPARTMENT oDept)        {            var bRes = false;            try            {                base.UpdateDto(departmentRepository, oDept);                bRes = true;            }            catch            {             }            return bRes;        }        #endregion        #region 角色管理        public List GetRoles(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            return base.GetDtoByLamada(roleRepository, selector);        }        public DTO_TB_ROLE AddRole(DTO_TB_ROLE oRole)        {            return base.AddDto(roleRepository, oRole);        }        #endregion        #region 菜单管理        public List GetMenus(ExpressionNode expressionNode)        {            Expressionbool>> selector = null;            if (expressionNode != null)            {                selector = expressionNode.ToExpressionbool>>();            }            return base.GetDtoByLamada(menuRepository, selector);        }        public DTO_TB_MENU AddMenu(DTO_TB_MENU oMenu)        {            return base.AddDto(menuRepository, oMenu);        }        #endregion        #endregion    }

这里要说明一点，在通过lamada表达式查询的方法里面为什么不直接用Expression>这种类型，而要使用ExpressionNode这种类型的变量呢？

这是因为Expression不支持序列化，无法用于WCF数据的传递。ExpressionNode这个对象的使用需要添加Serialize.Linq这个dll的引用，还好有我们神奇的NuGet，让我们再也不用去网上找一大堆的dll了。

我们公用的增删改查封装到了BaseService这个父类里面。

1.3 BaseService代码

public class BaseService    {        #region Fields        private bool bInitAutoMapper = false;        #endregion        #region Construct         public BaseService()        {            //注册MEF            Regisgter.regisgter().ComposeParts(this);        }        #endregion        #region 查询        ///         /// 通用单表查询方法        ///         /// DTOmodel        /// 领域模型        /// 需要传过来的仓储接口对象        /// 前端传过来的lamada表达式        ///         public List GetDtoByLamada(IRepository oRepository, Expressionbool>> selector = null)            where DomainModel : AggregateRoot            where DtoModel : Dto_BaseModel        {            InitAutoMapper();            if (selector == null)            {                var lstDomainModel = oRepository.Entities.ToList();                return Mapper.Map, List>(lstDomainModel);            }            //得到从Web传过来和DTOModel相关的lamaba表达式的委托            Funcbool> match = selector.Compile();            //创建映射Expression的委托            Func mapper = AutoMapper.QueryableExtensions.Extensions.CreateMapExpression(Mapper.Engine).Compile();            //得到领域Model相关的lamada            Expressionbool>> lamada = ef_t => match(mapper(ef_t));            List list = oRepository.Find(lamada).ToList();            return Mapper.Map, List>(list);        }         #endregion        #region 新增        public DtoModel AddDto(IRepository oRepository, DtoModel oDtoModel)            where DomainModel : AggregateRoot            where DtoModel : Dto_BaseModel        {            InitAutoMapper();            var oDomain = Mapper.Map(oDtoModel);            oRepository.Insert(oDomain);            return Mapper.Map(oDomain);        }        #endregion        #region 删除        public int DeleteDto(IRepository oRepository, DtoModel oDtoModel)            where DomainModel : AggregateRoot            where DtoModel : Dto_BaseModel        {            InitAutoMapper();            var oDomain = Mapper.Map(oDtoModel);            return oRepository.Delete(oDomain);        }        public int DeleteDto(IRepository oRepository, Expressionbool>> selector = null)            where DomainModel : AggregateRoot            where DtoModel : Dto_BaseModel        {            InitAutoMapper();            if (selector == null)            {                return 0;            }            //得到从Web传过来和DTOModel相关的lamaba表达式的委托            Funcbool> match = selector.Compile();            //创建映射Expression的委托            Func mapper = AutoMapper.QueryableExtensions.Extensions.CreateMapExpression(Mapper.Engine).Compile();            //得到领域Model相关的lamada            Expressionbool>> lamada = ef_t => match(mapper(ef_t));            return oRepository.Delete(lamada);        }         #endregion        #region 更新        public void UpdateDto(IRepository oRepository, DtoModel oDtoModel)            where DomainModel : AggregateRoot            where DtoModel : Dto_BaseModel        {            InitAutoMapper();            var oDomain = Mapper.Map(oDtoModel);            oRepository.Update(oDomain);        }        #endregion        #region Private        private void InitAutoMapper()        {            var oType = Mapper.FindTypeMapFor();            if (oType==null)            {                Mapper.CreateMap();                Mapper.CreateMap();            }        }        #endregion    }

这个父类主要做了两件事：一是MEF的初始化；二是通用增删改查的实现。所有dto对象和领域model的映射都在这里统一管理。

2、UI层代码

UI层里面，为了更好分离代码，我们引入了接口编程的机制，引入了ESTM.Web.IBLL和ESTM.Web.BLL两个项目，如图：

为什么要有这么一个接口层？之前 MEF实现设计上的“松耦合”（终结篇：面向接口编程）这篇已经做过介绍，对面向接口编程不了解的朋友可以看看。

2.1 ESTM.Web.IBLL代码

这个dll主要定义接口规则。

 public interface IPowerManager    {        List GetUsers(Expressionbool>> selector = null);        DTO_TB_USERS AddUser(DTO_TB_USERS oUser);        bool DeleteUser(DTO_TB_USERS oUser);        bool UpdateUser(DTO_TB_USERS oUser);        bool DeleteUser(Expressionbool>> selector = null);        List GetDepartments(Expressionbool>> selector = null);        DTO_TB_DEPARTMENT AddDepartment(DTO_TB_DEPARTMENT oDept);        bool DeleteDepartment(DTO_TB_DEPARTMENT oDept);        bool DeleteDepartment(Expressionbool>> selector = null);        bool UpdateDepartment(DTO_TB_DEPARTMENT oDept);        List GetRoles(Expressionbool>> selector = null);        List GetMenus(Expressionbool>> selector = null);    }

2.2 ESTM.Web.BLL代码

这个dll用于实现ESTM.Web.IBLL里面的接口方法

[Export(typeof(IPowerManager))]    public class PowerManager : IPowerManager    {        #region Fields　　　　 //创建WCF服务连接对象        private ServiceReference_PowerManager.PowerManageWCFServiceClient oService = CreatePowerManagerService.GetInstance();         #endregion        #region 接口实现        public List GetUsers(Expressionbool>> selector = null)        {            return oService.GetUsers(GetExpressionNode(selector));        }        public List GetDepartments(Expressionbool>> selector = null)        {            return oService.GetDepartments(GetExpressionNode(selector));        }        public List GetRoles(Expressionbool>> selector = null)        {            return oService.GetRoles(GetExpressionNode(selector));        }        public List GetMenus(Expressionbool>> selector = null)        {            return oService.GetMenus(GetExpressionNode(selector));        }         #endregion        #region Privates        //将lamada表达式转换为可用于WCF传递的ExpressionNode类型        private ExpressionNode GetExpressionNode(Expressionbool>> selector)        {            if (selector == null)            {                return null;            }            ExpressionConverter expressionConverter = new ExpressionConverter();            ExpressionNode expressionNode = expressionConverter.Convert(selector);            return expressionNode;        }        #endregion        public DTO_TB_USERS AddUser(DTO_TB_USERS oUser)        {            return oService.AddUser(oUser);        }        public bool DeleteUser(DTO_TB_USERS oUser)        {            return oService.DeleteUser(oUser);        }        public bool DeleteUser(Expressionbool>> selector = null)        {            if (selector == null)            {                return false;            }            ExpressionConverter expressionConverter = new ExpressionConverter();            ExpressionNode expressionNode = expressionConverter.Convert(selector);            return oService.DeleteUserByLamada(expressionNode);        }        public bool UpdateUser(DTO_TB_USERS oUser)        {            return oService.UpdateUser(oUser);        }        public DTO_TB_DEPARTMENT AddDepartment(DTO_TB_DEPARTMENT oDept)        {            return oService.AddDepartment(oDept);        }        public bool DeleteDepartment(DTO_TB_DEPARTMENT oDept)        {            return oService.DeleteDepartment(oDept);        }        public bool UpdateDepartment(DTO_TB_DEPARTMENT oDept)        {            return oService.UpdateDepartment(oDept);        }        public bool DeleteDepartment(Expressionbool>> selector = null)        {            if (selector == null)            {                return false;            }            ExpressionConverter expressionConverter = new ExpressionConverter();            ExpressionNode expressionNode = expressionConverter.Convert(selector);            return oService.DeleteDeptByLamada(expressionNode);        }    }

    public class CreatePowerManagerService    {        private static ServiceReference_PowerManager.PowerManageWCFServiceClient oPowerManagerClient = null;        private static object obj = new object();        public static ServiceReference_PowerManager.PowerManageWCFServiceClient GetInstance()        {            lock (obj)            {                if (oPowerManagerClient == null)                {                    oPowerManagerClient = new ServiceReference_PowerManager.PowerManageWCFServiceClient();                }            }            return oPowerManagerClient;        }    }

由于是采用的添加服务引用的方式引用的WCF服务，所以在这一层需要添加WCF服务的引用。在实现这部分代码的时候博主遇到过一个问题，在此和朋友们分享一下。由于在WCF服务的设计里面用到了DTO对象，而在ESTM.Web.BLL这个项目里面也要用到DTO，但是添加WCF服务引用的时候默认的是WCF服务里面的DTO，而不是ESTM.Common.DtoModel这个项目的DTO对象，这样就有问题了，每次如果我们需要改动下dto的内容，那么我们就需要更新下服务引用。还好，微软给我们选择的机制，我们来看图

这样就能解决上面的问题了。

2.3 ESTM.Web代码

按照面向接口的机制，ESTM.Web项目是不需要添加ESTM.Web.BLL这个实现层项目引用的，通过MEF动态导入ESTM.Web.BLL里面的对象。我们来看代码：

public class PowerManagerController : BaseController    {        [Import]        private IPowerManager PowerManager { set; get; }        #region Views        // GET: PowerManager        public ActionResult User()        {            return View();        }        public ActionResult Role()        {            return View();        }        public ActionResult Menu()        {            return View();        }        public ActionResult Department()        {            return View();        }         #endregion        #region 部门管理        public JsonResult GetDepartments(int limit, int offset, string departmentname, string statu)        {            //得到lamada表达式            var oLamadaExtention = new LamadaExtention();            if (!string.IsNullOrEmpty(departmentname))            {                oLamadaExtention.GetExpression("DEPARTMENT_NAME", departmentname, ExpressionType.Contains);            }            if (!string.IsNullOrEmpty(statu))            {                oLamadaExtention.GetExpression("STATUS", statu, ExpressionType.Contains);            }            var lamada = oLamadaExtention.GetLambda();            var lstRes = PowerManager.GetDepartments(lamada);            return Json(new { rows = lstRes.Skip(offset).Take(limit).ToList(), total = lstRes.Count }, JsonRequestBehavior.AllowGet);        }        public object GetDepartmentEdit(string strPostData)        {            var oDepartment = Newtonsoft.Json.JsonConvert.DeserializeObject(strPostData);            if (string.IsNullOrEmpty(oDepartment.DEPARTMENT_ID))            {                oDepartment.DEPARTMENT_ID = Guid.NewGuid().ToString();                oDepartment = PowerManager.AddDepartment(oDepartment);            }            else            {                PowerManager.UpdateDepartment(oDepartment);            }            return oDepartment;        }        public object DeleteDept(string strID)        {            PowerManager.DeleteDepartment(x=>x.DEPARTMENT_ID == strID);            return new object();        }        #endregion        #region 菜单管理        public JsonResult GetMenus(int limit, int offset, string menuname, string menuurl)        {            var oLamadaExtention = new LamadaExtention();            if (!string.IsNullOrEmpty(menuname))            {                oLamadaExtention.GetExpression("MENU_NAME", menuname, ExpressionType.Contains);            }            if (!string.IsNullOrEmpty(menuurl))            {                oLamadaExtention.GetExpression("MENU_URL", menuurl, ExpressionType.Contains);            }            var lamada = oLamadaExtention.GetLambda();            var lstRes = PowerManager.GetMenus(lamada).ToList();            return Json(new { rows = lstRes.Skip(offset).Take(limit).ToList(), total = lstRes.Count }, JsonRequestBehavior.AllowGet);        }        public object GetMenuEdit(string strPostData)        {            var oMenu = Newtonsoft.Json.JsonConvert.DeserializeObject(strPostData);            if (string.IsNullOrEmpty(oMenu.MENU_ID))            {                //oMenu = MenuManager.Add(oMenu);            }            else            {                //MenuManager.Update(oMenu);            }            return oMenu;        }        public object DeleteMenu(string strID)        {            //MenuManager.Delete(strID);            return new object();        }        public object GetParentMenu()        {            var lstMenu = PowerManager.GetMenus(x => x.MENU_LEVEL == "1");            //var lstRes = RoleManager.Find().ToList();            //var oRes = new PageRowData();            //oRes.rows = lstRes.Skip(offset).Take(limit).ToList();            //oRes.total = lstRes.Count;            return lstMenu; ;        }        public object GetChildrenMenu(string strParentID)        {            var lstMenu = PowerManager.GetMenus(x => x.MENU_LEVEL == "2" & x.PARENT_ID == strParentID).ToList();            //var lstRes = RoleManager.Find().ToList();            //var oRes = new PageRowData();            //oRes.rows = lstRes.Skip(offset).Take(limit).ToList();            //oRes.total = lstRes.Count;            return lstMenu; ;        }        #endregion        #region 权限管理        public JsonResult GetRole(int limit, int offset, string rolename, string desc)        {            var oLamadaExtention = new LamadaExtention();            if (!string.IsNullOrEmpty(rolename))            {                oLamadaExtention.GetExpression("ROLE_NAME", rolename, ExpressionType.Contains);            }            if (!string.IsNullOrEmpty(desc))            {                oLamadaExtention.GetExpression("DESCRIPTION", desc, ExpressionType.Contains);            }            var lamada = oLamadaExtention.GetLambda();            var lstRes = PowerManager.GetRoles(lamada).ToList();            return Json(new { rows = lstRes.Skip(offset).Take(limit).ToList(), total = lstRes.Count }, JsonRequestBehavior.AllowGet);        }        #endregion        #region 用户管理        public JsonResult GetUsers(int limit, int offset, string username, string fullname)        {            var oLamadaExtention = new LamadaExtention();            if (!string.IsNullOrEmpty(username))            {                oLamadaExtention.GetExpression("USER_NAME", username, ExpressionType.Contains);            }            if (!string.IsNullOrEmpty(fullname))            {                oLamadaExtention.GetExpression("FULLNAME", fullname, ExpressionType.Contains);            }            var lamada = oLamadaExtention.GetLambda();            var lstRes = PowerManager.GetUsers(lamada).ToList();            return Json(new { rows = lstRes.Skip(offset).Take(limit).ToList(), total = lstRes.Count }, JsonRequestBehavior.AllowGet);        }        public object GetUserEdit(string strPostData)        {            var oUser = Newtonsoft.Json.JsonConvert.DeserializeObject(strPostData);            if (string.IsNullOrEmpty(oUser.USER_ID))            {                oUser.USER_ID = Guid.NewGuid().ToString();                oUser = PowerManager.AddUser(oUser);            }            else            {                PowerManager.UpdateUser(oUser);            }            return oUser;        }        public object DeleteUser(string strID)        {            PowerManager.DeleteUser(x => x.USER_ID == strID);            return new object();        }        #endregion    }

View页面

<!DOCTYPE html><html><head>    <meta name="viewport" content="width=device-width" />    <title>@ViewBag.Title</title>    @Styles.Render("~/Content/css")    @Styles.Render("~/Content/table-css")    @Scripts.Render("~/bundles/jquery")    @Scripts.Render("~/bundles/bootstrap")    @Scripts.Render("~/bundles/bootstrap-table")    @RenderSection("Scripts", false)</head><body>    @RenderBody()</body></html>

@{    ViewBag.Title = "部门管理";    Layout = "~/Views/Shared/_Layout.cshtml";}@Scripts.Render("~/bundles/PowerManage/DepartmentManage")<div class="panel-body" style="padding-bottom:0px;">    <div class="panel panel-default">        <div class="panel-heading">查询条件</div>        <div class="panel-body">            <div class="row">                <div class="col-md-4">                    <label for="txt_search_departmentname" class="col-sm-4 control-label" style="margin-top:6px;">部门名称</label>                    <span class="col-sm-8">                        <input type="text" class="form-control" id="txt_search_departmentname">                    </span>                </div>                <div class="col-md-4">                    <label for="txt_search_statu" class="col-sm-3 control-label" style="margin-top:6px;">状态</label>                    <span class="col-sm-8">                        <input type="text" class="form-control" id="txt_search_statu">                    </span>                </div>                <div class="col-md-4">                    <button type="button" id="btn_query" class="btn btn-primary">查询</button>                </div>            </div>        </div>    </div></div><div id="toolbar" class="btn-group">    <button id="btn_add" type="button" class="btn btn-default">        <span class="glyphicon glyphicon-plus" aria-hidden="true"></span>新增    </button>    <button id="btn_edit" type="button" class="btn btn-default">        <span class="glyphicon glyphicon-pencil" aria-hidden="true"></span>修改    </button>    <button id="btn_delete" type="button" class="btn btn-default">        <span class="glyphicon glyphicon-remove" aria-hidden="true"></span>删除    </button></div><table id="tb_departments"></table><form>    <div class="modal fade" id="myModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">        <div class="modal-dialog" role="document">            <div class="modal-content">                <div class="modal-header">                    <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>                    <h4 id="新增">新增</h4>                </div>                <div class="modal-body">                    <div class="form-group">                        <label for="txt_departmentname">部门名称</label>                        <input type="text" name="txt_departmentname" class="form-control" id="txt_departmentname" placeholder="部门名称">                    </div>                    <div class="form-group">                        <label for="txt_parentdepartment">上级部门</label>                        <input type="text" name="txt_parentdepartment" class="form-control" id="txt_parentdepartment" placeholder="上级部门">                    </div>                    <div class="form-group">                        <label for="txt_departmentlevel">部门级别</label>                        <input type="text" name="txt_departmentlevel" class="form-control" id="txt_departmentlevel" placeholder="部门级别">                    </div>                    <div class="form-group">                        <label for="txt_statu">状态</label>                        <input type="text" name="txt_statu" class="form-control" id="txt_statu" placeholder="状态">                    </div>                </div>                <div class="modal-footer">                    <button type="button" class="btn btn-default" data-dismiss="modal"><span class="glyphicon glyphicon-remove" aria-hidden="true"></span>关闭</button>                    <button type="button" id="btn_submit" class="btn btn-primary" data-dismiss="modal"><span class="glyphicon glyphicon-floppy-disk" aria-hidden="true"></span>保存</button>                </div>            </div>        </div>    </div></form>

JS代码我们来看一个页面就好了，其他页面类似：

$(function () {    $('#tb_departments').bootstrapTable({        url: '/PowerManager/GetDepartments',        method: 'post',        toolbar: '#toolbar',        pagination: true,        queryParams: queryParams,        queryParamsType: "limit",        //ajaxOptions: { departmentname: "", statu: "" },        sidePagination: "server",        pageSize: 5,        pageList: [5, 25, 50, 100],        search: true,        strictSearch: true,        showColumns: true,        showRefresh: true,        minimumCountColumns: 2,        clickToSelect: true,        columns: [{            checkbox: true        }, {            field: 'DEPARTMENT_NAME',            title: '部门名称'        }, {            field: 'PARENT_ID',            title: '上级部门'        }, {            field: 'DEPARTMENT_LEVEL',            title: '部门级别'        }, {            field: 'STATUS',            title: '状态'        }, ],        onLoadSuccess: function (data) {            var odata = data;        }    });    var oButtonInit = new ButtonInit();    oButtonInit.Init();});function queryParams(params) {  //配置参数    var temp = {   //这里的键的名字和控制器的变量名必须一直，这边改动，控制器也需要改成一样的        limit: params.limit,   //页面大小        offset: params.offset,  //页码        departmentname: $("#txt_search_departmentname").val(),        statu: $("#txt_search_statu").val()    };    return temp;}var ButtonInit = function () {    var oInit = new Object();    var postdata = {};    oInit.Init = function () {        $("#btn_add").click(function () {            $("#myModalLabel").text("新增");            $("#myModal").find(".form-control").val("");            $('#myModal').modal()            postdata.DEPARTMENT_ID = "";        });        $("#btn_edit").click(function () {            var arrselections = $("#tb_departments").bootstrapTable('getSelections');            if (arrselections.length > 1) {                //alert("只能选择一行进行编辑");                $("#btn_alert").alert();                return;            }            if (arrselections.length <= 0) {                //alert("请先选择需要编辑的行");                $("#btn_alert").alert()                return;            }            $("#myModalLabel").text("编辑");            $("#txt_departmentname").val(arrselections[0].DEPARTMENT_NAME);            $("#txt_parentdepartment").val(arrselections[0].PARENT_ID);            $("#txt_departmentlevel").val(arrselections[0].DEPARTMENT_LEVEL);            $("#txt_statu").val(arrselections[0].STATUS);            postdata.DEPARTMENT_ID = arrselections[0].DEPARTMENT_ID;            $('#myModal').modal();        });        $("#btn_delete").click(function () {            var arrselections = $("#tb_departments").bootstrapTable('getSelections');            if (arrselections.length <= 0) {                //alert("请先选择需要编辑的行");                $("#btn_alert").alert()                return;            }            if (!confirm("确定要删除选定的数据吗？")) {                return;            }            $.ajax({                type: "post",                url: "/PowerManager/DeleteDept",                data: { strID: arrselections[0].DEPARTMENT_ID },                success: function (data, status) {                    if (status == "success") {                        alert("提交数据成功");                        $("#tb_departments").bootstrapTable('refresh');                    }                },                error: function () {                    alert("error");                },                complete: function () {                    //alert("complete");                }            });        });        $("#btn_submit").click(function () {            postdata.DEPARTMENT_NAME = $("#txt_departmentname").val();            postdata.PARENT_ID = $("#txt_parentdepartment").val();            postdata.DEPARTMENT_LEVEL = $("#txt_departmentlevel").val();            postdata.STATUS = $("#txt_statu").val();            $.ajax({                type: "post",                url: "/PowerManager/GetDepartmentEdit",                data: { strPostData: JSON.stringify(postdata) },                success: function (data, status) {                    if (status == "success") {                        alert("提交数据成功");                        $("#tb_departments").bootstrapTable('refresh');                    }                },                error: function () {                    //alert("error");                },                complete: function () {                    //alert("complete");                }            });        });        $("#btn_query").click(function () {            $("#tb_departments").bootstrapTable('refresh');        });    };    return oInit;};

效果图：

在做页面数据更新的时候，博主又遇到一个问题：ObjectStateManager 中已存在具有同一键的对象。ObjectStateManager 无法跟踪具有相同键的多个对象。在此还是记录下解决方案：

在仓储的公共实现类中将

  public virtual IQueryable Entities  {     get { return UnitOfWork.context.Set(); }  }

改成

public virtual IQueryable Entities{  get { return UnitOfWork.context.Set().AsNoTracking() as IQueryable; }}

就可以了。

至此，从领域模型到Web前端的代码基本完成，可能很多代码并未完善，比如异常处理、数据验证等。

DDD领域驱动设计初探系列文章：

• 《DDD领域驱动设计初探（1）：聚合》
• 《DDD领域驱动设计初探（2）：仓储Repository（上）》
• 《DDD领域驱动设计初探（3）：仓储Repository（下）》
• 《DDD领域驱动设计初探（4）：WCF搭建》
• 《DDD领域驱动设计初探（5）：AutoMapper使用》
• 《DDD领域驱动设计初探（6）：领域服务》