DDD领域驱动设计初探（7）：Web层的搭建
<p>来自： <a href="/misc/goto?guid=4959670426185356491" rel="nofollow">http://blog.jobbole.com/99390/</a></p> <p>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。</p> <h2>一、UI层介绍</h2> <p>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。</p> <p>这里还是贴出bootstrap API的相关地址。</p> <p>Bootstrap中文网： <a href="/misc/goto?guid=4958532246454818584" rel="nofollow,noindex">http://www.bootcss.com/</a></p> <p>Bootstrap Table Demo： <a href="/misc/goto?guid=4959670426312175653" rel="nofollow,noindex">http://issues.wenzhixin.net.cn/bootstrap-table/index.html</a></p> <p>Bootstrap Table API： <a href="/misc/goto?guid=4959670426404246823" rel="nofollow,noindex">http://bootstrap-table.wenzhixin.net.cn/zh-cn/documentation/</a></p> <p>Bootstrap Table源码： <a href="/misc/goto?guid=4958865022484382996" rel="nofollow,noindex">https://github.com/wenzhixin/bootstrap-table</a></p> <p>Bootstrap DataPicker： <a href="/misc/goto?guid=4959670426524700158" rel="nofollow,noindex">http://www.bootcss.com/p/bootstrap-datetimepicker/</a></p> <p><a href="/misc/goto?guid=4959670426615601981" rel="nofollow,noindex">Bootstrap离线API</a></p> <h2>二、代码示例</h2> <p>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。</p> <h3>1、WCF代码</h3> <p>1.1 WCF服务业务接口代码</p> <pre> /// /// 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 }</pre> <p>1.2 WCF接口实现代码：</p> <pre> [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 }</pre> <p>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？</p> <p>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。</p> <p><img src="https://simg.open-open.com/show/11cb468da933181a94818a9b1f972182.png"></p> <p>我们公用的增删改查封装到了BaseService这个父类里面。</p> <p>1.3 BaseService代码</p> <pre> 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 }</pre> <p>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。</p> <h3>2、UI层代码</h3> <p>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：</p> <p><img src="https://simg.open-open.com/show/c3ea0c06211c873064804d5d7589e8e6.png"></p> <p>为什么要有这么一个接口层？之前 <a href="/misc/goto?guid=4959670426709613980" rel="nofollow,noindex"> MEF实现设计上的“松耦合”（终结篇：面向接口编程）</a> 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。</p> <p>2.1 ESTM.Web.IBLL代码</p> <p>这个dll主要定义接口规则。</p> <pre> 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); }</pre> <p>2.2 ESTM.Web.BLL代码</p> <p>这个dll用于实现ESTM.Web.IBLL里面的接口方法</p> <pre> [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); } }</pre> <pre> 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; } }</pre> <p>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</p> <p><img src="https://simg.open-open.com/show/5097f583f1ff5c51117038666e89dbaf.png"></p> <p><img src="https://simg.open-open.com/show/78add29e8c4a1768b37bd1d97363f0d6.png"></p> <p>这样就能解决上面的问题了。</p> <p>2.3 ESTM.Web代码</p> <p>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：</p> <pre> 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 }</pre> <p>View页面</p> <pre> <!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></pre> <pre> @{ 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">×</span></button> <h4 class="modal-title" id="myModalLabel">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></pre> <p>JS代码我们来看一个页面就好了，其他页面类似：</p> <pre> $(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; };</pre> <p>效果图：</p> <p><img src="https://simg.open-open.com/show/fd6066f200d15441428db6620aad97e3.png"></p> <p><img src="https://simg.open-open.com/show/844b20855e057f3738b3c732836d2523.png"></p> <p><img src="https://simg.open-open.com/show/97c70418757575b53cc6c3f128d1d03d.png"></p> <p>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：</p> <p>在仓储的公共实现类中将</p> <pre> public virtual IQueryable Entities { get { return UnitOfWork.context.Set(); } }</pre> <p>改成</p> <pre> public virtual IQueryable Entities { get { return UnitOfWork.context.Set().AsNoTracking() as IQueryable; } }</pre> <p>就可以了。</p> <p>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。</p> <p>DDD领域驱动设计初探系列文章：</p> 本文由用户 tsums 自行上传分享，仅供网友学习交流。所有权归原作者，若您的权利被侵害，请联系管理员。
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