1、新建类库WPFProjectShared，在类库下新建文件夹Dtos，新建BaseDto.cs，继承INotifyPropertyChanged，实现通知更新。
public class BaseDto : INotifyPropertyChanged{public int Id { get; set; }public event PropertyChangedEventHandler? PropertyChanged;/// <summary>/// 实现通知更新/// </summary>/// <param name="propertyName"></param>public void OnPropertyChanged([CallerMemberName] string propertyName = ""){PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));}}2、WPFProjectAPI添加引用WPFProjectShared
3、新建待办事项传输实体TodoDto.cs，继承BaseDto.cs
/// <summary>/// 待办事项传输实体/// </summary>public class TodoDto : BaseDto{/// <summary>/// 标题/// </summary>private string title;public string Title{get { return title; }set { title = value; OnPropertyChanged(); }}/// <summary>/// 内容/// </summary>private string content;public string Content{get { return content; }set { content = value; OnPropertyChanged(); }}/// <summary>/// 状态/// </summary>private string status;public string Status{get { return status; }set { status = value; OnPropertyChanged(); }}}4、在api层引入AutoMapper，并新建文件夹Extensions，新建帮助类AutoMapperProFile.cs，继承ProFile
public class AutoMapperProFile : Profile{public AutoMapperProFile(){CreateMap<ToDo, TodoDto>().ReverseMap();}}5、在program.cs中注册AutoMapper的服务
//注册AutoMapper服务
builder.Services.AddAutoMapper(typeof(AutoMapperProFile));6、IToDoService.cs修改代码传入ToDoDto，相应的ToDoService.cs的代码也要修改
public interface IToDoService : IBaseService<TodoDto>{}public class ToDoService : IToDoService{private readonly IUnitOfWork unitOfWork;private readonly IMapper mapper;public ToDoService(IUnitOfWork unitOfWork, IMapper mapper){this.unitOfWork = unitOfWork;this.mapper = mapper;}/// <summary>/// 新增待办事项/// </summary>/// <param name="model"></param>/// <returns></returns>public async Task<ApiResponse> AddEntityAsync(TodoDto model){try{var todo = mapper.Map<ToDo>(model);await unitOfWork.GetRepository<ToDo>().InsertAsync(todo);if(await unitOfWork.SaveChangesAsync() > 0){return new ApiResponse(true, model);}else{return new ApiResponse(false, "添加数据失败！");}}catch (Exception ex){return new ApiResponse(false, ex.Message);}}/// <summary>/// 删除待办事项/// </summary>/// <param name="id"></param>/// <returns></returns>public async Task<ApiResponse> DeleteEntityAsync(int id){try{var repository = unitOfWork.GetRepository<ToDo>();var todo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(id));repository.Delete(todo);if (await unitOfWork.SaveChangesAsync() > 0){return new ApiResponse(true, "删除数据成功！");}else{return new ApiResponse(false, "删除数据失败！");}}catch (Exception ex){return new ApiResponse(false, ex.Message);}}/// <summary>/// 查询所有数据/// </summary>/// <returns></returns>public async Task<ApiResponse> GetAllAsync(){try{var repository = unitOfWork.GetRepository<ToDo>();var todo = await repository.GetAllAsync();if (todo != null){return new ApiResponse(true, todo);}else{return new ApiResponse(false, "查询数据失败！");}}catch (Exception ex){return new ApiResponse(false, ex.Message);}}/// <summary>/// 根据Id查询数据/// </summary>/// <param name="id"></param>/// <returns></returns>public async Task<ApiResponse> GetSingleAsync(int id){try{var repository = unitOfWork.GetRepository<ToDo>();var todo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(id));if (todo != null){return new ApiResponse(true, todo);}else{return new ApiResponse(false, $"未查询到Id={id}的数据！");}}catch (Exception ex){return new ApiResponse(false, ex.Message);}}/// <summary>/// 更新数据/// </summary>/// <param name="model"></param>/// <returns></returns>/// <exception cref="NotImplementedException"></exception>public async Task<ApiResponse> UpdateEntityAsync(TodoDto model){try{var dbTodo = mapper.Map<ToDo>(model);var repository = unitOfWork.GetRepository<ToDo>();var todo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(dbTodo.Id));if (todo != null){todo.Title = dbTodo.Title;todo.Content = dbTodo.Content;todo.Status = dbTodo.Status;todo.UpdateDate = DateTime.Now;repository.Update(todo);if(await unitOfWork.SaveChangesAsync() > 0){return new ApiResponse(true, "更新数据成功！");}else{return new ApiResponse(true, "更新数据失败！");}}else{return new ApiResponse(false, $"未查询到Id={model.Id}的数据！");}}catch (Exception ex){return new ApiResponse(false, ex.Message);}}}7、F5运行项目
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