EF Core 分页查询

提示：分页查询时，尽量显式地指定排序规则

[HttpGet("{pageIndex:int}/{pageSize:int}")]
        public async Task<ActionResult<IEnumerable<Book>>> GetPage(int pageIndex, int pageSize)
        {
            IQueryable<Book> query = _context.Books.Where(m => m.Title.Contains("之"));
            long count = query.LongCount();//总记录数
            long pageCount = (long)Math.Ceiling(count * 1.0 / pageSize);//页数
            query = query.Skip((pageIndex - 1) * pageSize).Take(pageSize);
            var list = await query.ToListAsync();
            return Ok(list);
        }