在没有EF核心引用的ASP.NET项目中使用EF存储？

using System.Data.Entity;

namespace YourNamespace
{
    public class DbContextFactory : IDbContextFactory<YourDbContext>
    {
        public YourDbContext Create()
        {
            string connectionString = "YourConnectionString"; // 替换为实际的数据库连接字符串
            DbContextOptionsBuilder<YourDbContext> optionsBuilder = new DbContextOptionsBuilder<YourDbContext>();
            optionsBuilder.UseSqlServer(connectionString); // 替换为实际的数据库类型和连接字符串

            return new YourDbContext(optionsBuilder.Options);
        }
    }
}

using System.Data.Entity;

namespace YourNamespace
{
    public class YourDbContext : DbContext
    {
        public YourDbContext(DbContextOptions<YourDbContext> options) : base(options)
        {
        }

        // 定义实体类对应的DbSet
        public DbSet<YourEntity> YourEntities { get; set; }
    }
}

<connectionStrings>
  <add name="YourConnectionString" connectionString="Data Source=YourServer;Initial Catalog=YourDatabase;User ID=YourUsername;Password=YourPassword;" providerName="System.Data.SqlClient" />
</connectionStrings>

using (YourDbContext dbContext = new DbContextFactory().Create())
{
    // 使用dbContext进行数据操作
    var entities = dbContext.YourEntities.ToList();
    // ...
}