.Net Core 3.x Api开发笔记 -- 使用AutoMapper(五)

 1，安装AutoMapper包

2，准备实体类和映射类

    public class Users
    {
        public int Userid { get; set; }
        public string Username { get; set; }
        public string Password { get; set; }
        public string TrueName { get; set; }
        public int Sex { get; set; }
        public string Email { get; set; }
        public DateTime Birthday { get; set; }
        public decimal bankprice { get; set; }

        .......
    }


    public class UsersDto
    {
        public int Userid { get; set; }
        public string UserName { get; set; }
        public string Sex { get; set; }
        public string Birthday { get; set; }
        public string Status { get; set; }
        public string Regtime { get; set; }
        public string Province { get; set; }
        public string City { get; set; }
        public string Area { get; set; }
    }

3，配置映射类，分别创建类：CustomProfile、AutoMapperConfig

    /// <summary>
    /// AutoMapper映射类 实体类--->Dto扩展类
    /// </summary>
    public class CustomProfile : Profile
    {
        public CustomProfile()
        {
            CreateMap<Users, UsersDto>()
                .ForMember(d => d.UserName, o => o.MapFrom(s => s.Username))
                //性别映射   0女  1男  2保密
                .ForMember(d => d.Sex, o => o.MapFrom(s => s.Sex == 0 ? "女" : (s.Sex == 1 ? "男" : "保密")))
                //状态映射   0停用  1启用
                .ForMember(d => d.Status, o => o.MapFrom(s => s.status == 0 ? "停用" : "启用"))
                //生日  时间格式映射  yyyy-MM-dd
                .ForMember(d => d.Birthday, o => o.MapFrom(s => s.Birthday.ToString("yyyy-MM-dd")))
                //注册时间  时间格式映射  yyyy-MM-dd HH:mm:ss
                .ForMember(d => d.Regtime, o => o.MapFrom(s => s.regtime.ToString("yyyy-MM-dd HH:mm:ss")))
                //省份   100
                .ForMember(d => d.Province, o => o.MapFrom(s => s.ProvinceId == 100 ? "河北省" : "北京市"))
                //城市   1001
                .ForMember(d => d.City, o => o.MapFrom(s => s.CityId == 1001 ? "石家庄市" : "北京市"))
                //地区   10011
                .ForMember(d => d.Area, o => o.MapFrom(s => s.AreaId == 10011 ? "正定区" : "北京市"));
        }
    }


    /// <summary>
    /// 配置AutoMapper映射类
    /// </summary>
    public class AutoMapperConfig
    {
        public static MapperConfiguration RegisterMappings()
        {
            return new MapperConfiguration(option =>
            {
                option.AddProfile(new CustomProfile());
            });
        }
    }

4，注册AutoMapper，注意下边红色部分

        public void ConfigureServices(IServiceCollection services)
        {
            services.AddControllersWithViews();

            //注册AddAutoMapper
            services.AddAutoMapper(typeof(AutoMapperConfig));
            AutoMapperConfig.RegisterMappings();

            //注册接口
            services.AddScoped<IUsersServices, UsersServices>();
        }

5，在业务类中的构造函数中调用，使用 IMapper 进行调用。。。

    public class UsersServices : IUsersServices
    {
        private readonly IMapper mapper;
        public UsersServices(IMapper _mapper)
        {
            mapper = _mapper;
        }
        public List<UsersDto> GetUserList()
        {
            return mapper.Map<List<UsersDto>>(this.GetUserDataList());  //调用数据库访问层获取数据
        }
       。。。。。。。。。

6，在控制器中使用

    public class UsersController : Controller
    {
        private readonly IUsersServices usersServices;

        public UsersController(IUsersServices _usersServices)
        {
            usersServices = _usersServices;
        }

        public IActionResult Index()
        {
            var getmodel = usersServices.GetUserList();  //正常调用
            return View(getmodel);
        }
    }

7，前端简单的用Html展示

<div class="eblist-div" id="listDiv">
        <table id="list-table" class="datalist table table-bordered">
            <thead class="bg-info">
                <tr>
                    <th>序号</th>
                    <th>用户名称</th>
                    <th>性别</th>
                    <th>生日</th>
                    <th>状态</th>
                    <th>注册时间</th>
                    <th>所在省</th>
                    <th>所在市</th>
                    <th>所在地区</th>
                </tr>
            </thead>
            <tbody>
                @foreach (var item in Model)
                {
                    <tr>
                        <td style="text-align: center;">@item.Userid</td>
                        <td style="text-align: center;">@item.UserName</td>
                        <td style="text-align: center;">@item.Sex</td>
                        <td style="text-align: center;">@item.Birthday</td>
                        <td style="text-align: center;">@item.Status</td>
                        <td style="text-align: center;">@item.Regtime</td>
                        <td style="text-align: center;">@item.Province</td>
                        <td style="text-align: center;">@item.City</td>
                        <td style="text-align: center;">@item.Area</td>
                    </tr>
                }
            </tbody>
        </table>
    </div>

8，最后测试效果