测试

MinimalAPI/Repositories/Repository.cs

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+using System.Linq.Expressions;
+using Microsoft.EntityFrameworkCore;
+using HardwarePerformance.Data;
+using HardwarePerformance.Models;
+
+namespace HardwarePerformance.Repositories
+{
+    public class Repository<T> : IRepository<T> where T : class
+    {
+        protected readonly AppDbContext _context;
+        protected readonly DbSet<T> _dbSet;
+
+        public Repository(AppDbContext context)
+        {
+            _context = context;
+            _dbSet = context.Set<T>();
+        }
+
+        public async Task<T?> GetByIdAsync(int id)
+        {
+            return await _dbSet.FindAsync(id);
+        }
+
+        public async Task<IEnumerable<T>> GetAllAsync()
+        {
+            return await _dbSet.ToListAsync();
+        }
+
+        public async Task<IEnumerable<T>> FindAsync(Expression<Func<T, bool>> predicate)
+        {
+            return await _dbSet.Where(predicate).ToListAsync();
+        }
+
+        public async Task<T> AddAsync(T entity)
+        {
+            await _dbSet.AddAsync(entity);
+            await _context.SaveChangesAsync();
+            return entity;
+        }
+
+        public async Task UpdateAsync(T entity)
+        {
+            _dbSet.Update(entity);
+            await _context.SaveChangesAsync();
+        }
+
+        public async Task DeleteAsync(T entity)
+        {
+            _dbSet.Remove(entity);
+            await _context.SaveChangesAsync();
+        }
+
+        public async Task<int> CountAsync(Expression<Func<T, bool>>? predicate = null)
+        {
+            if (predicate == null)
+                return await _dbSet.CountAsync();
+            return await _dbSet.CountAsync(predicate);
+        }
+    }
+}