新增處室與身份管理控制器

新增 `DepartmentController` 和 `RoleController`，提供 API 端點以管理處室和身份資料。每個控制器實作 `GetAllAsync` 方法，能異步獲取所有資料並處理錯誤，返回適當的 HTTP 狀態碼及錯誤訊息。

XisongSpaceBooking_BackEnd/Configurations/AutoMappingProfile.cs

@@ -0,0 +1,21 @@
+using AutoMapper;
+using Models.Entities;
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+
+namespace XisongSpaceBooking_BackEnd.Configurations
+{
+    /// <summary>
+    /// AutoMapper 映射配置檔案
+    /// </summary>
+    public class AutoMappingProfile : Profile
+    {
+        public AutoMappingProfile()
+        {
+            // Department Entity 到 DTO 的映射
+            CreateMap<DepartmentEntity, DepartmentDto>();
+            
+            // Role Entity 到 DTO 的映射
+            CreateMap<RoleEntity, RoleDto>();
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Configurations/SpaceBookingDbContext.cs

@@ -0,0 +1,255 @@
+using Microsoft.EntityFrameworkCore;
+using Models.Entities;
+using XisongSpaceBooking_BackEnd.Models.Entities;
+
+namespace XisongSpaceBooking_BackEnd.Configurations
+{
+    /// <summary>
+    /// 空間預約系統的資料庫內容類別
+    /// </summary>
+    public class SpaceBookingDbContext : DbContext
+    {
+        public SpaceBookingDbContext(DbContextOptions<SpaceBookingDbContext> options) : base(options)
+        {
+        }
+
+        /// <summary>
+        /// 處室資料集
+        /// </summary>
+        public DbSet<DepartmentEntity> Departments { get; set; }
+
+        /// <summary>
+        /// 身份資料集
+        /// </summary>
+        public DbSet<RoleEntity> Roles { get; set; }
+
+        /// <summary>
+        /// 帳號資料集
+        /// </summary>
+        public DbSet<AccountEntity> Accounts { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            base.OnModelCreating(modelBuilder);
+
+            // 配置 Department 實體
+            ConfigureDepartment(modelBuilder);
+
+            // 配置 Role 實體
+            ConfigureRole(modelBuilder);
+
+            // 配置 Account 實體
+            ConfigureAccount(modelBuilder);
+        }
+
+        /// <summary>
+        /// 配置 Department 實體
+        /// </summary>
+        /// <param name="modelBuilder">模型建構器</param>
+        private static void ConfigureDepartment(ModelBuilder modelBuilder)
+        {
+            var entity = modelBuilder.Entity<DepartmentEntity>();
+
+            // 設定資料表名稱
+            entity.ToTable("departments");
+
+            // 設定主鍵
+            entity.HasKey(d => d.DepartmentId);
+            entity.Property(d => d.DepartmentId)
+                .HasColumnName("department_id")
+                .ValueGeneratedOnAdd()
+                .HasComment("處室 ID");
+
+            // 設定處室名稱
+            entity.Property(d => d.DepartmentName)
+                .HasColumnName("department_name")
+                .HasMaxLength(20)
+                .IsRequired()
+                .HasComment("處室名稱");
+        }
+
+        /// <summary>
+        /// 配置 Role 實體
+        /// </summary>
+        /// <param name="modelBuilder">模型建構器</param>
+        private static void ConfigureRole(ModelBuilder modelBuilder)
+        {
+            var entity = modelBuilder.Entity<RoleEntity>();
+
+            // 設定資料表名稱
+            entity.ToTable("roles");
+
+            // 設定主鍵
+            entity.HasKey(r => r.RoleId);
+            entity.Property(r => r.RoleId)
+                .HasColumnName("role_id")
+                .ValueGeneratedOnAdd()
+                .HasComment("身份 ID");
+
+            // 設定身份名稱
+            entity.Property(r => r.RoleName)
+                .HasColumnName("role_name")
+                .HasMaxLength(20)
+                .IsRequired()
+                .HasComment("身份名稱");
+        }
+
+        /// <summary>
+        /// 配置 Account 實體
+        /// </summary>
+        /// <param name="modelBuilder">模型建構器</param>
+        private static void ConfigureAccount(ModelBuilder modelBuilder)
+        {
+            var entity = modelBuilder.Entity<AccountEntity>();
+
+            // 設定資料表名稱
+            entity.ToTable("accounts");
+
+            // 設定主鍵
+            entity.HasKey(a => a.AccountId);
+            entity.Property(a => a.AccountId)
+                .HasColumnName("account_id")
+                .ValueGeneratedOnAdd()
+                .HasComment("帳號 ID");
+
+            // 設定使用者姓名
+            entity.Property(a => a.Name)
+                .HasColumnName("name")
+                .HasMaxLength(20)
+                .IsRequired()
+                .HasComment("使用者姓名");
+
+            // 設定帳號名稱（唯一）
+            entity.Property(a => a.Username)
+                .HasColumnName("username")
+                .HasMaxLength(20)
+                .IsRequired()
+                .HasComment("帳號名稱");
+
+            // 設定密碼
+            entity.Property(a => a.Password)
+                .HasColumnName("password")
+                .HasMaxLength(255)
+                .IsRequired()
+                .HasComment("密碼（加密）");
+
+            // 設定電子郵件（唯一）
+            entity.Property(a => a.Email)
+                .HasColumnName("email")
+                .HasMaxLength(50)
+                .IsRequired()
+                .HasComment("電子郵件");
+
+            // 設定處室 ID（外鍵）
+            entity.Property(a => a.DepartmentId)
+                .HasColumnName("department_id")
+                .IsRequired()
+                .HasComment("處室 ID");
+
+            // 設定身份 ID（外鍵）
+            entity.Property(a => a.RoleId)
+                .HasColumnName("role_id")
+                .IsRequired()
+                .HasComment("身份 ID");
+
+            // 設定帳號狀態（轉換為字串儲存）
+            entity.Property(a => a.Status)
+                .HasColumnName("status")
+                .HasConversion(
+                    v => v.ToString().ToLower(),
+                    v => Enum.Parse<AccountStatus>(v, true))
+                .HasMaxLength(20)
+                .HasDefaultValue(AccountStatus.Unverified)
+                .IsRequired()
+                .HasComment("帳號狀態");
+
+            // 設定 BaseEntity 屬性
+            entity.Property(a => a.CreatedAt)
+                .HasColumnName("created_at")
+                .HasDefaultValueSql("CURRENT_TIMESTAMP")
+                .IsRequired()
+                .HasComment("建立時間");
+
+            entity.Property(a => a.UpdatedAt)
+                .HasColumnName("updated_at")
+                .ValueGeneratedOnUpdate()
+                .HasComment("更新時間");
+
+            entity.Property(a => a.ModifiedBy)
+                .HasColumnName("modified_by")
+                .IsRequired(false)
+                .HasComment("最後修改者帳號 ID");
+
+            // 設定唯一索引
+            entity.HasIndex(a => a.Username)
+                .IsUnique()
+                .HasDatabaseName("IX_accounts_username");
+
+            entity.HasIndex(a => a.Email)
+                .IsUnique()
+                .HasDatabaseName("IX_accounts_email");
+
+            // 設定外鍵關聯
+            entity.HasOne(a => a.Department)
+                .WithMany()
+                .HasForeignKey(a => a.DepartmentId)
+                .OnDelete(DeleteBehavior.Restrict)
+                .HasConstraintName("FK_accounts_departments");
+
+            entity.HasOne(a => a.Role)
+                .WithMany()
+                .HasForeignKey(a => a.RoleId)
+                .OnDelete(DeleteBehavior.Restrict)
+                .HasConstraintName("FK_accounts_roles");
+
+            // 設定自參考外鍵（ModifiedBy）
+            entity.HasOne<AccountEntity>()
+                .WithMany()
+                .HasForeignKey(a => a.ModifiedBy)
+                .OnDelete(DeleteBehavior.SetNull)
+                .HasConstraintName("FK_accounts_modified_by");
+        }
+
+        /// <summary>
+        /// 覆寫 SaveChanges 以自動更新 UpdatedAt 欄位
+        /// </summary>
+        public override int SaveChanges()
+        {
+            UpdateTimestamps();
+            return base.SaveChanges();
+        }
+
+        /// <summary>
+        /// 覆寫 SaveChangesAsync 以自動更新 UpdatedAt 欄位
+        /// </summary>
+        public override async Task<int> SaveChangesAsync(CancellationToken cancellationToken = default)
+        {
+            UpdateTimestamps();
+            return await base.SaveChangesAsync(cancellationToken);
+        }
+
+        /// <summary>
+        /// 更新時間戳記
+        /// </summary>
+        private void UpdateTimestamps()
+        {
+            var entries = ChangeTracker.Entries<BaseEntity>();
+
+            foreach (var entry in entries)
+            {
+                switch (entry.State)
+                {
+                    case EntityState.Added:
+                        entry.Entity.UpdatedAt = DateTime.UtcNow;
+                        break;
+
+                    case EntityState.Modified:
+                        entry.Entity.UpdatedAt = DateTime.UtcNow;
+                        // 確保 CreatedAt 不會被修改
+                        entry.Property(e => e.CreatedAt).IsModified = false;
+                        break;
+                }
+            }
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Controllers/DepartmentController.cs

@@ -0,0 +1,49 @@
+using Microsoft.AspNetCore.Mvc;
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+using XisongSpaceBooking_BackEnd.Services;
+
+namespace XisongSpaceBooking_BackEnd.Controllers
+{
+    /// <summary>
+    /// 處室管理 API 控制器
+    /// </summary>
+    [ApiController]
+    [Route("api/[controller]")]
+    public class DepartmentController : ControllerBase
+    {
+        private readonly IDepartmentService _departmentService;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="departmentService">處室業務邏輯服務</param>
+        public DepartmentController(IDepartmentService departmentService)
+        {
+            _departmentService = departmentService ?? throw new ArgumentNullException(nameof(departmentService));
+        }
+
+        /// <summary>
+        /// 取得所有處室資料
+        /// </summary>
+        /// <returns>所有處室資料的集合</returns>
+        /// <response code="200">成功取得處室資料列表</response>
+        /// <response code="500">伺服器內部錯誤</response>
+        [HttpGet("GetAll")]
+        [ProducesResponseType(typeof(IEnumerable<DepartmentDto>), StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<ActionResult<IEnumerable<DepartmentDto>>> GetAllAsync()
+        {
+            try
+            {
+                var departments = await _departmentService.GetAllAsync();
+                return Ok(departments);
+            }
+            catch (Exception ex)
+            {
+                // 記錄錯誤（這裡可以加入日誌記錄）
+                return StatusCode(StatusCodes.Status500InternalServerError, 
+                    new { message = "取得處室資料時發生錯誤", error = ex.Message });
+            }
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Controllers/RoleController.cs

@@ -0,0 +1,49 @@
+using Microsoft.AspNetCore.Mvc;
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+using XisongSpaceBooking_BackEnd.Services;
+
+namespace XisongSpaceBooking_BackEnd.Controllers
+{
+    /// <summary>
+    /// 身份管理 API 控制器
+    /// </summary>
+    [ApiController]
+    [Route("api/[controller]")]
+    public class RoleController : ControllerBase
+    {
+        private readonly IRoleService _roleService;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="roleService">身份業務邏輯服務</param>
+        public RoleController(IRoleService roleService)
+        {
+            _roleService = roleService ?? throw new ArgumentNullException(nameof(roleService));
+        }
+
+        /// <summary>
+        /// 取得所有身份資料
+        /// </summary>
+        /// <returns>所有身份資料的集合</returns>
+        /// <response code="200">成功取得身份資料列表</response>
+        /// <response code="500">伺服器內部錯誤</response>
+        [HttpGet("GetAll")]
+        [ProducesResponseType(typeof(IEnumerable<RoleDto>), StatusCodes.Status200OK)]
+        [ProducesResponseType(StatusCodes.Status500InternalServerError)]
+        public async Task<ActionResult<IEnumerable<RoleDto>>> GetAllAsync()
+        {
+            try
+            {
+                var roles = await _roleService.GetAllAsync();
+                return Ok(roles);
+            }
+            catch (Exception ex)
+            {
+                // 記錄錯誤（這裡可以加入日誌記錄）
+                return StatusCode(StatusCodes.Status500InternalServerError, 
+                    new { message = "取得身份資料時發生錯誤", error = ex.Message });
+            }
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Models/DTOs/DepartmentDto.cs

@@ -0,0 +1,18 @@
+namespace XisongSpaceBooking_BackEnd.Models.DTOs
+{
+    /// <summary>
+    /// 處室資料傳輸物件
+    /// </summary>
+    public class DepartmentDto
+    {
+        /// <summary>
+        /// 處室 ID（主鍵）
+        /// </summary>
+        public int DepartmentId { get; set; }
+
+        /// <summary>
+        /// 處室名稱
+        /// </summary>
+        public string DepartmentName { get; set; } = string.Empty;
+    }
+}

XisongSpaceBooking_BackEnd/Models/DTOs/RoleDto.cs

@@ -0,0 +1,18 @@
+namespace XisongSpaceBooking_BackEnd.Models.DTOs
+{
+    /// <summary>
+    /// 身份資料傳輸物件
+    /// </summary>
+    public class RoleDto
+    {
+        /// <summary>
+        /// 身份 ID（主鍵）
+        /// </summary>
+        public int RoleId { get; set; }
+
+        /// <summary>
+        /// 身份名稱
+        /// </summary>
+        public string RoleName { get; set; } = string.Empty;
+    }
+}

XisongSpaceBooking_BackEnd/Models/Entities/AccountEntity.cs

@@ -0,0 +1,81 @@
+using XisongSpaceBooking_BackEnd.Models.Entities;
+
+namespace Models.Entities
+{
+    /// <summary>
+    /// 帳號實體類別，對應資料庫 accounts 表格
+    /// </summary>
+    public class AccountEntity : BaseEntity
+    {
+        /// <summary>
+        /// 帳號 ID（主鍵）
+        /// </summary>
+        public int AccountId { get; set; }
+
+        /// <summary>
+        /// 使用者姓名
+        /// </summary>
+        public string Name { get; set; } = string.Empty;
+        
+        /// <summary>
+        /// 帳號名稱（唯一）
+        /// </summary>
+        public string Username { get; set; } = string.Empty;
+        
+        /// <summary>
+        /// 密碼（加密）
+        /// </summary>
+        public string Password { get; set; } = string.Empty;
+        
+        /// <summary>
+        /// 電子郵件（唯一）
+        /// </summary>
+        public string Email { get; set; } = string.Empty;
+
+        /// <summary>
+        /// 處室 ID（外鍵）
+        /// </summary>
+        public int DepartmentId { get; set; }
+        
+        /// <summary>
+        /// 身份 ID（外鍵）
+        /// </summary>
+        public int RoleId { get; set; }
+        
+        /// <summary>
+        /// 帳號狀態
+        /// </summary>
+        public AccountStatus Status { get; set; }
+
+        /// <summary>
+        /// 關聯的處室資訊
+        /// </summary>
+        public DepartmentEntity? Department { get; set; }
+        
+        /// <summary>
+        /// 關聯的身份資訊
+        /// </summary>
+        public RoleEntity? Role { get; set; }
+    }
+
+    /// <summary>
+    /// 帳號狀態列舉
+    /// </summary>
+    public enum AccountStatus
+    {
+        /// <summary>
+        /// 已啟用
+        /// </summary>
+        Enabled,
+        
+        /// <summary>
+        /// 已停用
+        /// </summary>
+        Disabled,
+        
+        /// <summary>
+        /// 未驗證（預設值）
+        /// </summary>
+        Unverified
+    }
+}

XisongSpaceBooking_BackEnd/Models/Entities/BaseEntity.cs

@@ -0,0 +1,9 @@
+namespace XisongSpaceBooking_BackEnd.Models.Entities
+{
+    public class BaseEntity
+    {
+        public DateTime CreatedAt { get; set; }
+        public DateTime? UpdatedAt { get; set; }
+        public int? ModifiedBy { get; set; }
+    }
+}

XisongSpaceBooking_BackEnd/Models/Entities/DepartmentEntity.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+
+namespace Models.Entities
+{
+    /// <summary>
+    /// 處室實體類別，對應資料庫 departments 表格
+    /// </summary>
+    public class DepartmentEntity
+    {
+        /// <summary>
+        /// 處室 ID（主鍵）
+        /// </summary>
+        public int DepartmentId { get; set; }
+        
+        /// <summary>
+        /// 處室名稱
+        /// </summary>
+        public string DepartmentName { get; set; }
+    }
+}

XisongSpaceBooking_BackEnd/Models/Entities/RoleEntity.cs

@@ -0,0 +1,20 @@
+using System.Collections.Generic;
+
+namespace Models.Entities
+{
+    /// <summary>
+    /// 身份實體類別，對應資料庫 roles 表格
+    /// </summary>
+    public class RoleEntity
+    {
+        /// <summary>
+        /// 身份 ID（主鍵）
+        /// </summary>
+        public int RoleId { get; set; }
+        
+        /// <summary>
+        /// 身份名稱
+        /// </summary>
+        public string RoleName { get; set; }
+    }
+}

XisongSpaceBooking_BackEnd/Program.cs

@@ -1,11 +1,48 @@
+using Microsoft.EntityFrameworkCore;
+using Microsoft.OpenApi.Models;
+using XisongSpaceBooking_BackEnd.Configurations;
+using XisongSpaceBooking_BackEnd.Repositories;
+using XisongSpaceBooking_BackEnd.Services;
+
 var builder = WebApplication.CreateBuilder(args);
 
 // Add services to the container.
-
 builder.Services.AddControllers();
+
+// 註冊 AutoMapper 服務
+builder.Services.AddAutoMapper(cfg =>
+{
+}, typeof(AutoMappingProfile).Assembly);
+
+// 註冊 Repository 服務
+builder.Services.AddScoped<IRoleRepository, RoleRepository>();
+builder.Services.AddScoped<IDepartmentRepository, DepartmentRepository>();
+
+// 註冊 Service 服務
+builder.Services.AddScoped<IRoleService, RoleService>();
+builder.Services.AddScoped<IDepartmentService, DepartmentService>();
+
+// 配置 Entity Framework 與連線池
+builder.Services.AddDbContextPool<SpaceBookingDbContext>(options =>
+{
+    var connectionString = builder.Configuration.GetConnectionString("DefaultConnection");
+    options.UseMySql(connectionString, ServerVersion.AutoDetect(connectionString),
+        mySqlOptions =>
+        {
+            // 連線池相關設定
+            mySqlOptions.EnableRetryOnFailure(
+                maxRetryCount: 5,
+                maxRetryDelay: TimeSpan.FromSeconds(30),
+                errorNumbersToAdd: null);
+        });
+});
+
 // Learn more about configuring Swagger/OpenAPI at https://aka.ms/aspnetcore/swashbuckle
 builder.Services.AddEndpointsApiExplorer();
-builder.Services.AddSwaggerGen();
+builder.Services.AddSwaggerGen(c =>
+{
+    c.SwaggerDoc("v1", new OpenApiInfo { Title = "西松高中場地預約/Xisong Space Booking API", Version = "v1" });
+});
 
 var app = builder.Build();
 
@@ -16,6 +53,8 @@ if (app.Environment.IsDevelopment())
     app.UseSwaggerUI();
 }
 
+app.UseCors("AllowAll");
+
 app.UseHttpsRedirection();
 
 app.UseAuthorization();

XisongSpaceBooking_BackEnd/Repositories/DepartmentRepository.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using Models.Entities;
+using XisongSpaceBooking_BackEnd.Configurations;
+
+namespace XisongSpaceBooking_BackEnd.Repositories
+{
+    /// <summary>
+    /// 處室資料存取實作
+    /// </summary>
+    public class DepartmentRepository : IDepartmentRepository
+    {
+        private readonly SpaceBookingDbContext _context;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="context">資料庫內容</param>
+        public DepartmentRepository(SpaceBookingDbContext context)
+        {
+            _context = context;
+        }
+
+        /// <summary>
+        /// 取得所有處室資料
+        /// </summary>
+        /// <returns>所有處室資料的集合</returns>
+        public async Task<IEnumerable<DepartmentEntity>> GetAllAsync()
+        {
+            return await _context.Departments
+                .AsNoTracking()
+                .ToListAsync();
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Repositories/IDepartmentRepository.cs

@@ -0,0 +1,16 @@
+using Models.Entities;
+
+namespace XisongSpaceBooking_BackEnd.Repositories
+{
+    /// <summary>
+    /// 處室資料存取介面
+    /// </summary>
+    public interface IDepartmentRepository
+    {
+        /// <summary>
+        /// 取得所有處室資料
+        /// </summary>
+        /// <returns>所有處室資料的集合</returns>
+        Task<IEnumerable<DepartmentEntity>> GetAllAsync();
+    }
+}

XisongSpaceBooking_BackEnd/Repositories/IRoleRepository.cs

@@ -0,0 +1,16 @@
+using Models.Entities;
+
+namespace XisongSpaceBooking_BackEnd.Repositories
+{
+    /// <summary>
+    /// 身份資料存取介面
+    /// </summary>
+    public interface IRoleRepository
+    {
+        /// <summary>
+        /// 取得所有身份資料
+        /// </summary>
+        /// <returns>所有身份資料的集合</returns>
+        Task<IEnumerable<RoleEntity>> GetAllAsync();
+    }
+}

XisongSpaceBooking_BackEnd/Repositories/RoleRepository.cs

@@ -0,0 +1,34 @@
+using Microsoft.EntityFrameworkCore;
+using Models.Entities;
+using XisongSpaceBooking_BackEnd.Configurations;
+
+namespace XisongSpaceBooking_BackEnd.Repositories
+{
+    /// <summary>
+    /// 身份資料存取實作
+    /// </summary>
+    public class RoleRepository : IRoleRepository
+    {
+        private readonly SpaceBookingDbContext _context;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="context">資料庫內容</param>
+        public RoleRepository(SpaceBookingDbContext context)
+        {
+            _context = context;
+        }
+
+        /// <summary>
+        /// 取得所有身份資料
+        /// </summary>
+        /// <returns>所有身份資料的集合</returns>
+        public async Task<IEnumerable<RoleEntity>> GetAllAsync()
+        {
+            return await _context.Roles
+                .AsNoTracking()
+                .ToListAsync();
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Services/DepartmentService.cs

@@ -0,0 +1,36 @@
+using AutoMapper;
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+using XisongSpaceBooking_BackEnd.Repositories;
+
+namespace XisongSpaceBooking_BackEnd.Services
+{
+    /// <summary>
+    /// 處室業務邏輯實作
+    /// </summary>
+    public class DepartmentService : IDepartmentService
+    {
+        private readonly IDepartmentRepository _departmentRepository;
+        private readonly IMapper _mapper;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="departmentRepository">處室資料存取</param>
+        /// <param name="mapper">物件映射器</param>
+        public DepartmentService(IDepartmentRepository departmentRepository, IMapper mapper)
+        {
+            _departmentRepository = departmentRepository ?? throw new ArgumentNullException(nameof(departmentRepository));
+            _mapper = mapper ?? throw new ArgumentNullException(nameof(mapper));
+        }
+
+        /// <summary>
+        /// 取得所有處室資料
+        /// </summary>
+        /// <returns>所有處室 DTO 的集合</returns>
+        public async Task<IEnumerable<DepartmentDto>> GetAllAsync()
+        {
+            var departments = await _departmentRepository.GetAllAsync();
+            return _mapper.Map<IEnumerable<DepartmentDto>>(departments);
+        }
+    }
+}

XisongSpaceBooking_BackEnd/Services/IDepartmentService.cs

@@ -0,0 +1,16 @@
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+
+namespace XisongSpaceBooking_BackEnd.Services
+{
+    /// <summary>
+    /// 處室業務邏輯介面
+    /// </summary>
+    public interface IDepartmentService
+    {
+        /// <summary>
+        /// 取得所有處室資料
+        /// </summary>
+        /// <returns>所有處室 DTO 的集合</returns>
+        Task<IEnumerable<DepartmentDto>> GetAllAsync();
+    }
+}

XisongSpaceBooking_BackEnd/Services/IRoleService.cs

@@ -0,0 +1,16 @@
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+
+namespace XisongSpaceBooking_BackEnd.Services
+{
+    /// <summary>
+    /// 身份業務邏輯介面
+    /// </summary>
+    public interface IRoleService
+    {
+        /// <summary>
+        /// 取得所有身份資料
+        /// </summary>
+        /// <returns>所有身份 DTO 的集合</returns>
+        Task<IEnumerable<RoleDto>> GetAllAsync();
+    }
+}

XisongSpaceBooking_BackEnd/Services/RoleService.cs

@@ -0,0 +1,36 @@
+using AutoMapper;
+using XisongSpaceBooking_BackEnd.Models.DTOs;
+using XisongSpaceBooking_BackEnd.Repositories;
+
+namespace XisongSpaceBooking_BackEnd.Services
+{
+    /// <summary>
+    /// 身份業務邏輯實作
+    /// </summary>
+    public class RoleService : IRoleService
+    {
+        private readonly IRoleRepository _roleRepository;
+        private readonly IMapper _mapper;
+
+        /// <summary>
+        /// 建構函式
+        /// </summary>
+        /// <param name="roleRepository">身份資料存取</param>
+        /// <param name="mapper">物件映射器</param>
+        public RoleService(IRoleRepository roleRepository, IMapper mapper)
+        {
+            _roleRepository = roleRepository ?? throw new ArgumentNullException(nameof(roleRepository));
+            _mapper = mapper ?? throw new ArgumentNullException(nameof(mapper));
+        }
+
+        /// <summary>
+        /// 取得所有身份資料
+        /// </summary>
+        /// <returns>所有身份 DTO 的集合</returns>
+        public async Task<IEnumerable<RoleDto>> GetAllAsync()
+        {
+            var roles = await _roleRepository.GetAllAsync();
+            return _mapper.Map<IEnumerable<RoleDto>>(roles);
+        }
+    }
+}

XisongSpaceBooking_BackEnd/appsettings.json

@@ -5,5 +5,8 @@
       "Microsoft.AspNetCore": "Warning"
     }
   },
-  "AllowedHosts": "*"
+  "AllowedHosts": "*",
+  "ConnectionStrings": {
+    "DefaultConnection": "Server=localhost;Database=xisong_space_booking;User=root;Password=00000000;CharSet=utf8mb4;AllowUserVariables=true;UseAffectedRows=false;"
+  }
 }