如何为Entity Framework Core设置本地机器的连接字符串？

{
  "ConnectionStrings": {
    "DefaultConnection": "Server=localhost;Database=YourDatabaseName;User Id=YourUsername;Password=YourPassword;"
  },
  // 其他配置...
}

public void ConfigureServices(IServiceCollection services)
{
    services.AddDbContext<YourDbContext>(options =>
        options.UseSqlServer(Configuration.GetConnectionString("DefaultConnection")));

    // 其他服务配置...
}

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

    public DbSet<YourEntity> YourEntities { get; set; }
}

public class YourService
{
    private readonly YourDbContext _context;

    public YourService(YourDbContext context)
    {
        _context = context;
    }

    public async Task<IEnumerable<YourEntity>> GetAllEntitiesAsync()
    {
        return await _context.YourEntities.ToListAsync();
    }
}