序列化JSON对象出现$ref: “$.list[0]”的解决办法https://github.com/alibaba/fastjson/issues/267https://www.jianshu.com/p/88871293cf0d 序列化JSON对象出现$ref: “$.list[0]”的解决办法https://blog.csdn.net/u013185616/article/details/52799166