JSON.toJsonString()用法
1 String jsonString = JSON.toJSONString(list,SerializerFeature.DisableCircularReferenceDetect);//禁止循环引用保护
String jsonString = JSON.toJSONString(list,SerializerFeature.WriteNullListAsEmpty);//将list返回值null转换为[]
1 String jsonString = JSON.toJSONString(list,SerializerFeature.DisableCircularReferenceDetect);//禁止循环引用保护
String jsonString = JSON.toJSONString(list,SerializerFeature.WriteNullListAsEmpty);//将list返回值null转换为[]