专业网站建设服务包括有没有免费的写文案的软件

---

---

项目地址

• 教程作者：
• 教程地址：

https://www.CSDN.com/watch?v=AiwzQMupPsU

• 代码仓库地址作者：

https://github.com/mohammad-taheri1/Youtube-Resume-Management-dotnet-react-ts

• 代码仓库自己：

https://github.com/CXTV/Resume/tree/main/backend

一、数据库创建/日志安装

1.1 创建实体层

• 使用泛型作为ID，这样可以控制哪张表用自增，哪张表用Guid

1. Entities

1. BaseEntity.cs

namespace ResumeManagement.Domain.Entities
{public abstract class BaseEntity<T>{public T ID { get; set; }   public DateTime CreatedAt { get; set; } = DateTime.Now;public DateTime UpdateAt { get; set; } = DateTime.Now;public bool isActive { get; set; } = true;  }
}

2. Company.cs : 里面有Job的Collection

namespace ResumeManagement.Domain.Entities
{public class Company:BaseEntity<Guid>{public string Name { get; set; }public CompanySize Size { get; set; }//relations 一对多public ICollection<Job> Jobs { get; set; }}
}

3. Job.cs:每个职位有对应的公司id和名称，一个职位有多个候选人

namespace ResumeManagement.Domain.Entities
{public class Job: BaseEntity<Guid>{public string Title { get; set; }public JobLevel Level { get; set; }//relations 多对一public Guid CompanyID { get; set; }public Company Company { get; set; }//relations 一对多一个职位可以有多个候选人public ICollection<Candidate> Candidates { get; set; }}
}

4. Candidate.cs: 每个候选人，有投递的工作ID和工作名称

namespace ResumeManagement.Domain.Entities
{public class Candidate: BaseEntity<Guid>{public string FirstName { get; set; }public string LastName { get; set; }public string Email { get; set; }public string Phone { get; set; }public string CoverLetter { get; set; }public string ResumeUrl { get; set; }//relations 多对一public Guid JobID { get; set; }public Job Job { get; set; }}
}

2. Enums 存放枚举

1. 公司规模的枚举

namespace ResumeManagement.Domain.Enums
{public enum CompanySize{Small,Medium,Large}
}

2.工作等级的

namespace ResumeManagement.Domain.Enums
{public enum JobLevel{Intern,Junior,MidLevel,Senior,TeamLead,Cto,Architect,}
}

1.2 创建数据库层

1. 安装Persistance层需要的库

2. 创建ResumeDbContext

• 这里定义表的关系
  

3. 添加数据库配置/注册DBContext

1. API层数据库连接appsettings.json

{"Logging": {"LogLevel": {"Default": "Information","Microsoft.AspNetCore": "Warning"}},"ConnectionStrings": {"ResumeDBConnectionStrings": "Server=.;Database=ResumeDB;Trusted_Connection=True;MultipleActiveResultSets=true;TrustServerCertificate=True;"},"AllowedHosts": "*"
}

2. 在Persistance层创建PersistanceRegistration.cs文件

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;namespace ResumenManagement.Persistance
{public static class PersistanceRegistration{public static void  AddPersistanceRegistration(this IServiceCollection services, IConfiguration configuration){services.AddDbContext<ResumeDbContext>(options =>options.UseSqlServer(configuration.GetConnectionString("ResumeDBConnectionStrings")));}}
}

3. 在Api层里注册

4. 执行Add-Migration

• 注意：如果从新添加了文件夹，一定要build项目之后，重启项目，才会执行migration成功
  
• 执行成功后，在数据里，就可以看到我们的表

5. 修改字段类型

• 在我们创建完成表之后，返现Size是int类型，Job里的Level也是int类型，这是因为枚举类型造成的原因，需要在DbContext里修改类型
• 

6. Enum支持Json

• 在Program.cs里添加

builder.Services.AddControllers().AddJsonOptions(options =>
{options.JsonSerializerOptions.Converters.Add(new JsonStringEnumConverter());
});

1.3 安装Serilog

1. Api层安装所需要的包

2. 在appsetting里配置

• 直接配置在setting之后，就不需要在中间件里配置

  "Serilog": {"MinimumLevel": {"Override": {"Microsoft": "Warning","Microsoft.EntityFrameworkCore": "Information"}},"WriteTo": [{"Name": "Console","Args": {"outputTemplate": "[{Timestamp:dd-MM HH:mm:ss} {Level:u3}] |{SourceContext}| {NewLine}{Message:lj}{NewLine}{Exception}"}},{"Name": "File","Args": {"path": "Logs/Resturant-API-.log","rollingInterval": "Day","rollOnFileSizeLimit": true,"formatter": "Serilog.Formatting.Compact.CompactJsonFormatter, Serilog.Formatting.Compact"}}]},"AllowedHosts": "*"

3. 注册Serilog在Program里

• 注册服务以及中间件
  

4.EfCore开启日志

• 在Persistence层里，efCore服务注册的地方PersistanceRegistration.cs

using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Microsoft.Extensions.DependencyInjection;
using Microsoft.Extensions.Logging;
using ResumenManagement.Application.Contracts.Persistance;
using ResumenManagement.Persistance.Repositories;namespace ResumenManagement.Persistance
{public static class PersistanceRegistration{public static void  AddPersistanceRegistration(this IServiceCollection services, IConfiguration configuration){services.AddDbContext<ResumeDbContext>(options =>options.UseSqlServer(configuration.GetConnectionString("ResumeDBConnectionStrings")).EnableSensitiveDataLogging() // 启用敏感数据记录);services.AddScoped(typeof(IAsyncRepository<>), typeof(BaseRepository<>));services.AddScoped<ICompanyRepository, CompanyRepository>();}}
}

5. 在Hanlder里使用

1. 需要先在Application层安装一个包才可以使用
   
2. 注册服务以及使用

二、数据库接口创建

2.1 Application创建需要的数据接口

1. 创建IAsyncRepository

• 根接口
  

2. 创建创建ICompanyRepository

• 继承IAsyncRepository，实现Company自己的方法，这里暂时没有自己独特的查询

namespace ResumenManagement.Application.Contracts.Persistance
{public interface ICompanyRepository: IAsyncRepository<Company>{}
}

2.2 Persistence层实现接口

• 实现Application层的接口
  

1. 实现BaseRepository

• 这里只实现一个方法

using Microsoft.EntityFrameworkCore;
using ResumenManagement.Application.Contracts.Persistance;
using System.Linq.Expressions;namespace ResumenManagement.Persistance.Repositories
{public class BaseRepository<T> : IAsyncRepository<T> where T : class{protected readonly ResumeDbContext _dbContext;public BaseRepository(ResumeDbContext dbContext){_dbContext = dbContext;}public async Task<T> AddAsync(T entity){await _dbContext.Set<T>().AddAsync(entity);await _dbContext.SaveChangesAsync();return entity;}public async Task<bool> AnyAsync(Expression<Func<T, bool>> predicate){return await _dbContext.Set<T>().AnyAsync(predicate);}
}  

2. 实现CompanyRepository

using ResumeManagement.Domain.Entities;
using ResumenManagement.Application.Contracts.Persistance;namespace ResumenManagement.Persistance.Repositories
{public class CompanyRepository:BaseRepository<Company>, ICompanyRepository{public CompanyRepository(ResumeDbContext dbContext) : base(dbContext){}}
}

2.3 注册实现的接口

在Persistence层的PersistenceRegistration.cs 里注册实现的服务，提供给其他地方使用，很重要

三、创建CreateCompany接口

• 功能：创建一个Company

3.1 安装MediaR和AutoMapper

1. 安装所需要的包和引用

• 在Application层安装所需要的包
  

2. 添加ApplicationRegistration

• 在Application层添加ApplicationRegistration.cs

using Microsoft.Extensions.DependencyInjection;namespace ResumenManagement.Application
{public static class ApplicationRegistration{public static void AddApplicationRegistration(this IServiceCollection services){//1.获取应用程序程序集var applicationAssembly = typeof(ApplicationRegistration).Assembly;//2.注册所有MediatR处理程序services.AddMediatR(cfg => cfg.RegisterServicesFromAssembly(applicationAssembly));//3.注册所有AutoMapper配置services.AddAutoMapper(applicationAssembly);              }}
}

3. 在Program里注册

• Program.cs里添加ApplicationRegistration

3.2 创建BaseResponse

• 定义整个项目的api返回的格式Responses

using System.Text.Json.Serialization;namespace ResumenManagement.Application.Responses
{public class BaseResponse{public BaseResponse(){Success = true;}public BaseResponse(string message){Success = true;Message = message;}public BaseResponse(string message, bool success){Success = success;Message = message;}public bool Success { get; set; }[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]public string? Message { get; set; }[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]public List<string>? ValidationErrors { get; set; }}
}

3.3 创建CQRS

• add/update/delete等操作是Command
• 查询为是Query
  

1. 创建CreateCompanyDto

• 定义CreateCompanyDto类，用于返回数据

using ResumeManagement.Domain.Enums;namespace ResumenManagement.Application.Features.Companies.Commands
{public class CreateCompanyDto{public Guid ID { get; set; }public string Name { get; set; }public CompanySize Size { get; set; }}
}

2. 创建CraeteCompanyResponse

• 返回一个CreateCompanyDto 类

using ResumenManagement.Application.Responses;
using System.Text.Json.Serialization;namespace ResumenManagement.Application.Features.Companies.Commands
{public class CreateCompanyCommandResponse : BaseResponse{public CreateCompanyCommandResponse() : base(){}[JsonIgnore(Condition = JsonIgnoreCondition.WhenWritingNull)]public CreateCompanyDto? Company { get; set; }}
}

3. 创建CreateCompanyCommand

• 定义传入的值，以及返回值

4. 创建CreateCompanyCommandHandler

• 获取数据库服务，AutoMapper服务，Serilog服务
• 根据业务增删改查

using AutoMapper;
using MediatR;
using Microsoft.Extensions.Logging;
using ResumeManagement.Domain.Entities;
using ResumenManagement.Application.Contracts.Persistance;namespace ResumenManagement.Application.Features.Companies.Commands
{public class CreateCompanyCommandHandler : IRequestHandler<CreateCompanyCommand, CreateCompanyCommandResponse>{private readonly IAsyncRepository<Company> _companyRepository;private readonly IMapper _mapper;private readonly ILogger<CreateCompanyCommandHandler> _logger;public CreateCompanyCommandHandler(IAsyncRepository<Company> companyRepository, IMapper mapper, ILogger<CreateCompanyCommandHandler> logger){_companyRepository = companyRepository;_mapper = mapper;_logger = logger;}public async Task<CreateCompanyCommandResponse> Handle(CreateCompanyCommand request, CancellationToken cancellationToken){var createCompanyCommandResponse = new CreateCompanyCommandResponse();var validator = new CreateCompanyCommandValidator();var validationResult = await validator.ValidateAsync(request);bool existingCompany = await _companyRepository.AnyAsync(c => c.Name == request.Name);if (existingCompany){_logger.LogInformation("Company Already Exists");createCompanyCommandResponse.Success = false;createCompanyCommandResponse.ValidationErrors ??= new List<string>();createCompanyCommandResponse.ValidationErrors.Add("Company Already Exists");}if (validationResult.Errors.Count > 0){_logger.LogInformation("validation error  ");createCompanyCommandResponse.Success = false;createCompanyCommandResponse.ValidationErrors = new List<string>();foreach (var error in validationResult.Errors){createCompanyCommandResponse.ValidationErrors.Add(error.ErrorMessage);}            }if (createCompanyCommandResponse.Success){_logger.LogInformation("Create a new Company");createCompanyCommandResponse.Message = "Company Created Successfully";var company = _mapper.Map<Company>(request);company = await _companyRepository.AddAsync(company);createCompanyCommandResponse.Company = _mapper.Map<CreateCompanyDto>(company);}return createCompanyCommandResponse;}}
}

5. 创建Validator用来验证数据

6. 创建MappingProfile

• 创建MapppingProfile.cs用于映射

using AutoMapper;
using ResumeManagement.Domain.Entities;
using ResumenManagement.Application.Features.Companies.Commands;namespace ResumenManagement.Application.Profiles
{public class MappingProfile: Profile{public MappingProfile(){CreateMap<Company, CreateCompanyDto>().ReverseMap();CreateMap<Company, CreateCompanyCommand>().ReverseMap();}}
}

3.4 创建Controller

1. 创建Company的Controller

using MediatR;
using Microsoft.AspNetCore.Mvc;
using ResumenManagement.Application.Features.Companies.Commands.CreateCompany;
using ResumenManagement.Application.Features.Companies.Queries.GetAllCompany;namespace backend.Controllers
{[Route("api/[controller]")][ApiController]public class CompanyController:ControllerBase{private readonly IMediator _mediator;public CompanyController(IMediator mediator){_mediator = mediator;}[HttpPost(Name = "CreateCampany")]public async Task<ActionResult<CreateCompanyCommandResponse>> CreateCompany([FromBody] CreateCompanyCommand createCompanyCommand){var response = await _mediator.Send(createCompanyCommand);return Ok(response);//return CreatedAtRoute("GetCompanyById", new { id = response.Company.CompanyID }, response);}[HttpGet(Name = "GetAllCompany")]public async Task<ActionResult<List<GetAllCompanyVm>>> GetAllCompany([FromQuery] GetAllCompanyQuery getAllCompanyQuery){var response = await _mediator.Send(getAllCompanyQuery);return Ok(response);}}
}

四、创建GetAllJob接口

• 功能:获取所有的工作

4.1 创建GetAllJobVM用于展示数据

1. Job实体的导航属性Campany

• 这里的Campany是Job的导航属性
  

2. 创建GetAllJobVm

• 创建Vm用于接口显示
  

3. 使用AutoMapper获取导航属性

1. 由于是读取数据，所以是从Job映射为VM
2. dest既GetAllJobVm的CompanyName属性，是从Job既src里的Company.Name里获取
   

4. 修改IRepository

• 由于使用了导航属性，不可以直接使用await _dbContext.Set<T>().ToListAsync();用来查询，需要使用include

1. 修改IRepository

2. 修改实现

五、Candidate上传下载

• 功能：创建Candidate,以及上传resume和下载

5.1 创建candidate和上传resume PDF

1. 创建CreateCandidateDto

• 根据Catedidate的Entity创建Dto，这个只用于前端提交表单

2. 创建CreateCandidate的Controller

• 传入Candidate的信息和resume pdf保存到数据库和本地

5.2 下载pdf

1. 下载Pdf的Controller