WPF实战项目十三（API篇）：备忘录功能api接口、优化待办事项api接口
1、新建MenoDto.cs
///
/// 备忘录传输实体
///
public class MenoDto : BaseDto
{
private string title;
///
/// 标题
///
public string Title
{
get { return title; }
set { title = value; }
}
private string content;
///
/// 内容
///
public string Content
{
get { return content; }
set { content = value; }
}
}2、添加映射关系
CreateMap().ReverseMap(); 3、新建服务接口IMemoService
public interface IMemoService : IBaseService
{
} 4、新建服务MemoService
public class MemoService : IMemoService
{
private readonly IUnitOfWork _unitOfWork;
private readonly IMapper mapper;
public MemoService(IMapper mapper, IUnitOfWork unitOfWork)
{
this.mapper = mapper;
_unitOfWork = unitOfWork;
}
///
/// 新增备忘录
///
///
/// AddEntityAsync(MemoDto model)
{
try
{
var memo = mapper.Map(model);
await _unitOfWork.GetRepository().InsertAsync(memo);
if(await _unitOfWork.SaveChangesAsync() > 0)
{
return new ApiResponse(true, memo);
}
else
{
return new ApiResponse(false, "添加数据失败！");
}
}
catch (Exception ex)
{
return new ApiResponse(false, ex.Message);
}
}
///
/// 删除备忘录
///
///
/// DeleteEntityAsync(int id)
{
try
{
var repository = _unitOfWork.GetRepository();
var memo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(id));
if(memo != null)
{
repository.Delete(memo);
}
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);
}
}
///
/// 查询所有备忘录
///
/// GetAllAsync()
{
try
{
var repository = _unitOfWork.GetRepository();
var memo = await repository.GetAllAsync();
if(memo != null)
{
return new ApiResponse(true, memo);
}
else
{
return new ApiResponse(false, "查询数据失败！");
}
}
catch (Exception ex)
{
return new ApiResponse(false, ex.Message);
}
}
///
/// 根据Id查询备忘录
///
///
/// GetSingleAsync(int id)
{
try
{
var repository = _unitOfWork.GetRepository();
var memo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(id));
if(memo != null)
{
return new ApiResponse(true, memo);
}
else
{
return new ApiResponse(false, $"查询Id={id}的数据失败！");
}
}
catch (Exception ex)
{
return new ApiResponse(false, ex.Message);
}
}
///
/// 更新备忘录
///
///
/// UpdateEntityAsync(MemoDto model)
{
try
{
var dbmemo = mapper.Map(model);
var repository = _unitOfWork.GetRepository();
var memo = await repository.GetFirstOrDefaultAsync(predicate: t => t.Id.Equals(dbmemo.Id));
if( memo != null)
{
memo.Title = dbmemo.Title;
memo.Content = dbmemo.Content;
memo.UpdateDate = DateTime.Now;
repository.Update(memo);
if(await _unitOfWork.SaveChangesAsync() > 0)
{
return new ApiResponse(true, "更新数据成功！");
}
else
{
return new ApiResponse(false, "更新数据失败！");
}
}
else
{
return new ApiResponse(false, $"未查询到Id={dbmemo.Id}的数据！");
}
}
catch (Exception ex)
{
return new ApiResponse(false, ex.Message);
}
}
} 5、新增MemoController控制器
public class MemoController : BaseApiController
{
private readonly IUnitOfWork _unitOfWork;
private readonly IMemoService memoService;
public MemoController(IMemoService memoService, IUnitOfWork unitOfWork)
{
this.memoService = memoService;
_unitOfWork = unitOfWork;
}
[HttpGet]
public async Task GetMemoById(int Id)
{
return await memoService.GetSingleAsync(Id);
}
[HttpPost]
public async Task AddMemo([FromBody] MemoDto memoDto)
{
return await memoService.AddEntityAsync(memoDto);
}
[HttpDelete]
public async Task DeleteMemo(int Id)
{
return await memoService.DeleteEntityAsync(Id);
}
[HttpGet]
public async Task GetAllMemo()
{
return await memoService.GetAllAsync();
}
[HttpPost]
public async Task UpdateMemo(MemoDto memoDto)
{
return await memoService.UpdateEntityAsync(memoDto);
}
} 6、在program.cs添加服务
builder.Services.AddTransient(); 7、F5运行项目
8、针对查询数据可以做个优化，增加查询的页数、内容、数据量等，新建查询参数类
public class QueryParameter
{
public int PageIndex { get; set; }
public int PageSize { get; set; }
public string Search { get; set; }
}9、在IToDoService.cs和IMemoService.cs中添加分页查询的接口
public interface IToDoService : IBaseService
{
Task GetPageListAllAsync(QueryParameter parameter);
}
public interface IMemoService : IBaseService
{
Task GetPageListAllAsync(QueryParameter parameter);
} 10、在ToDoService.cs中实现接口和MemoService.cs中实现接口
///
/// 分页查询所有数据
///
///
/// GetPageListAllAsync(QueryParameter parameter)
{
try
{
var repository = unitOfWork.GetRepository();
var todo = await repository.GetPagedListAsync(predicate: x => string.IsNullOrWhiteSpace(parameter.Search) ? true : x.Title.Contains(parameter.Search),
pageIndex: parameter.PageIndex,
pageSize: parameter.PageSize,
orderBy: y => y.OrderByDescending(t => t.CreateDate));
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);
}
} ///
/// 分页查询所有备忘录
///
///
/// GetPageListAllAsync(QueryParameter parameter)
{
try
{
var repository = _unitOfWork.GetRepository();
var memo = await repository.GetPagedListAsync(predicate: x => string.IsNullOrWhiteSpace(parameter.Search) ? true : x.Title.Contains(parameter.Search),
pageIndex: parameter.PageIndex,
pageSize: parameter.PageSize,
orderBy: y => y.OrderByDescending(t => t.CreateDate));
if (memo != null)
{
return new ApiResponse(true, memo);
}
else
{
return new ApiResponse(false, "查询数据失败！");
}
}
catch (Exception ex)
{
return new ApiResponse(false, ex.Message);
}
} 11、在ToDoController和MemoController中添加代码
[HttpGet]
public async Task GetAllPageListToDo([FromQuery] QueryParameter parameter)
{
return await toDoService.GetPageListAllAsync(parameter);
}
[HttpGet]
public async Task GetAllPageListMemo([FromQuery] QueryParameter parameter)
{
return await memoService.GetPageListAllAsync(parameter);
} 12、F5运行项目
