此笔记记载了本人在.Net Core 5.0环境下生成Json数据时
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.的症状、排查及解决方案。
环境
.Net Core版本：5.0
编译器：Visual Studio 2019，Rider2021.1.3
症状
在生成Json数据的时候会提示 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.的错误提示。
解决方案
造成此问题的原因是由于在生成Json对象的时候属性的循环引用导致的。
可用如下方法进行解决
- 安装 Microsoft.AspNetCore.Mvc.NewtonsoftJson 包 可以从Nuget上进行下载并安装
- 安装完成后在 Startup.cs 文件中加入如下代码
public void ConfigureServices(IServiceCollection services)
{
// .Net Core 5.0以下适用
services.AddMvc(options => { options.Filters.Add(); })
.AddJsonOptions(options =>
{
// 忽略属性的循环引用
options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
});
// .Net Core 5.0适用
services.AddMvc(options => { options.Filters.Add(); })
.AddNewtonsoftJson(options =>
{
// 忽略属性的循环引用
options.SerializerSettings.ReferenceLoopHandling = ReferenceLoopHandling.Ignore;
});
}
Original: https://www.cnblogs.com/ykbb/p/15015265.html
Author: 一块白板
Title: 关于.Net Core生成JSON时错误：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.
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