Asp.Net Core报错System.Text.Json.JsonException: A possible object cycle was detected which is not supp(配置导航属性的时候出现的错误)

Asp.Net Core报错:System.Text.Json.JsonException: A possible object cycle was detected which is not supported. This can either be due to a cycle or if the object depth is larger than the maximum allowed depth of 32

检测到不支持的可能对象循环。这可能是由于周期或物体深度大于最大允许深度32。

这是由于进行了对象嵌套或ef 查询进行了预加载(关联加载)引起的,就像解释说的“对象循环”,层级太深解析不了。

解决方法:

  1. 添加 Microsoft.AspNetCore.Mvc.NewtonsoftJson 包
  2. Startup中添加服务,忽略循环引用
   services.AddControllers().AddNewtonsoftJson(option =>
                //忽略循环引用
                option.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore
            );



原文地址:https://www.cnblogs.com/qqhfeng/p/14176575.html