.Net Core 3.x Api开发笔记 -

 1，安装AutoMapper包

2，准备实体类和映射类

 1  public class Users 2  { 3   public int Userid { get; set; } 4   public string Username { get; set; } 5   public string Password { get; set; } 6   public string TrueName { get; set; } 7   public int Sex { get; set; } 8   public string Email { get; set; } 9   public DateTime Birthday { get; set; }10   public decimal bankprice { get; set; }11 12   .......13  }14 15 16  public class UsersDto17  {18   public int Userid { get; set; }19   public string UserName { get; set; }20   public string Sex { get; set; }21   public string Birthday { get; set; }22   public string Status { get; set; }23   public string Regtime { get; set; }24   public string Province { get; set; }25   public string City { get; set; }26   public string Area { get; set; }27  }

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

 1  /// <summary> 2  /// AutoMapper映射类 实体类--->Dto扩展类 3  /// </summary> 4  public class CustomProfile : Profile 5  { 6   public CustomProfile() 7   { 8    CreateMap<Users, UsersDto>() 9     .ForMember(d => d.UserName, o => o.MapFrom(s => s.Username))10     //性别映射 0女 1男 2保密11     .ForMember(d => d.Sex, o => o.MapFrom(s => s.Sex == 0 ? "女" : (s.Sex == 1 ? "男" : "保密")))12     //状态映射 0停用 1启用13     .ForMember(d => d.Status, o => o.MapFrom(s => s.status == 0 ? "停用" : "启用"))14     //生日 时间格式映射 yyyy-MM-dd15     .ForMember(d => d.Birthday, o => o.MapFrom(s => s.Birthday.ToString("yyyy-MM-dd")))16     //注册时间 时间格式映射 yyyy-MM-dd HH:mm:ss17     .ForMember(d => d.Regtime, o => o.MapFrom(s => s.regtime.ToString("yyyy-MM-dd HH:mm:ss")))18     //省份 10019     .ForMember(d => d.Province, o => o.MapFrom(s => s.ProvinceId == 100 ? "河北省" : "北京市"))20     //城市 100121     .ForMember(d => d.City, o => o.MapFrom(s => s.CityId == 1001 ? "石家庄市" : "北京市"))22     //地区 1001123     .ForMember(d => d.Area, o => o.MapFrom(s => s.AreaId == 10011 ? "正定区" : "北京市"));24   }25  }26 27 28  /// <summary>29  /// 配置AutoMapper映射类30  /// </summary>31  public class AutoMapperConfig32  {33   public static MapperConfiguration RegisterMappings()34   {35    return new MapperConfiguration(option =>36    {37     option.AddProfile(new CustomProfile());38    });39   }40  }

4，注册AutoMapper，注意下边红色部分

 1   public void ConfigureServices(IServiceCollection services) 2   { 3    services.AddControllersWithViews(); 4  5    //注册AddAutoMapper 6    services.AddAutoMapper(typeof(AutoMapperConfig)); 7    AutoMapperConfig.RegisterMappings(); 8  9    //注册接口10    services.AddScoped<IUsersServices, UsersServices>();11   }

5，在业务类中的构造函数中调用，使用 IMapper 进行调用。。。

 1  public class UsersServices : IUsersServices 2  { 3   private readonly IMapper mapper; 4   public UsersServices(IMapper _mapper) 5   { 6    mapper = _mapper; 7   } 8   public List<UsersDto> GetUserList() 9   {10    return mapper.Map<List<UsersDto>>(this.GetUserDataList()); //调用数据库访问层获取数据11   }
  。。。。。。。。。

6，在控制器中使用

 1  public class UsersController : Controller 2  { 3   private readonly IUsersServices usersServices; 4  5   public UsersController(IUsersServices _usersServices) 6   { 7    usersServices = _usersServices; 8   } 9 10   public IActionResult Index()11   {12    var getmodel = usersServices.GetUserList(); //正常调用13    return View(getmodel);14   }15  }

7，前端简单的用Html展示

 1 <div class="eblist-div" id="listDiv"> 2   <table id="list-table" class="datalist table table-bordered"> 3    <thead class="bg-info"> 4     <tr> 5      <th>序号</th> 6      <th>用户名称</th> 7      <th>性别</th> 8      <th>生日</th> 9      <th>状态</th>10      <th>注册时间</th>11      <th>所在省</th>12      <th>所在市</th>13      <th>所在地区</th>14     </tr>15    </thead>16    <tbody>17     @foreach (var item in Model)18     {19      <tr>20       <td style="text-align: center;">@item.Userid</td>21       <td style="text-align: center;">@item.UserName</td>22       <td style="text-align: center;">@item.Sex</td>23       <td style="text-align: center;">@item.Birthday</td>24       <td style="text-align: center;">@item.Status</td>25       <td style="text-align: center;">@item.Regtime</td>26       <td style="text-align: center;">@item.Province</td>27       <td style="text-align: center;">@item.City</td>28       <td style="text-align: center;">@item.Area</td>29      </tr>30     }31    </tbody>32   </table>33  </div>

8，最后测试效果 

 

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1，安装AutoMapper包2，准备实体类和映射类1publicclassUsers2{3publicintUserid{get;set;}4publicstringUsername{get;set;}5publicstringPassword{get;set;}6publicstringTrueName{get;set;}7publicintSex{get;set;}8publicstring
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