0

任何人都可以帮助我解决我已经坚持了几天的事情。我将 Odata 与 asp.net 核心和 NetTopologySuite 一起使用。

我有一个列类型为 Geometry 的 postgres 数据库。使用 npgsql 的请求工作正常，但 Odata 的序列化是一团糟。

似乎 odata 正在循环。每个退回的物品我应该只收到一个 XYZ。

有什么建议么？

这就是返回的内容。

,"形状":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","SRID":4326,"坐标":[{"X" :-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","坐标值":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN ","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{" X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z": "南","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{"X" :-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","坐标值":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN ","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{" X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":{"X":-9.129147,"Y":41.133908999999996,"Z":"NaN","M":"NaN","CoordinateValue":块引用

模型

       public class Model_bs_age_depth {
    
          
            
            [Key]
            [DatabaseGenerated(DatabaseGeneratedOption.None)]
            public string age_depth_id { get; set; }
            public string site_id { get; set; }
            public string site_type { get; set; }
            public string site_name { get; set; }
            public decimal? latitude { get; set; }
            public decimal? longitude { get; set; }
            public string country { get; set; }
            public NetTopologySuite.Geometries.Point shape { get; set; }
  }
}

控制器

        public async Task<ActionResult<IEnumerable<Model_bs_age_depth>>> Getbs_age_depth() {
    
     var optionsBuilder = new DbContextOptionsBuilder<StorageBroker>()
                    .UseNpgsql(_connectionString, x => 
                     x.UseNetTopologySuite())
                    .UseLoggerFactory(factoryLogger)
                    .Options;
    
                        StorageBroker context = new StorageBroker(optionsBuilder);

   var query = await context.bs_age_depth.ToListAsync();
            
            
            if (query == null) {
                }
            return query;
            }

存储代理

   public class StorageBroker : DbContext {

        private static readonly ILoggerFactory factoryLogger = LoggerFactory.Create(builder => builder.AddConsole())!;
        public StorageBroker(DbContextOptions<StorageBroker> options)
           : base(options) {



        }

        public DbSet<Model_bs_age_depth> bs_age_depth { get; set; }
        public DbSet<bs_biozone> bs_biozone { get; set; }
        public DbSet<DBModel> cd_site { get; set; }


       
  

    }

}

调试显示查询

tvd_top_f FROM bs_age_depth AS b 失败：Microsoft.AspNetCore.Diagnostics.DeveloperExceptionPageMiddleware[1] 执行请求时发生未处理的异常。Microsoft.OData.ODataException：已达到嵌套展开导航链接中条目的深度限制。嵌套展开条目的数量不能超过 100。

4

0 回答 0