摘要： 转载：http://blog.csdn.net/zhengbo0/article/details/8269148问题：net.sf.json.JSONException: There is a cycle in the hierarchy!at net.sf.json.util.CycleDetectionStrategy$StrictCycleDetectionStrategy.handleRepeatedReferenceAsObject(CycleDetectionStrategy.java:97)********************************************* 阅读全文