英文:
How to convert (Object obj) this type of object to JSON and then back?
问题
我尝试了这个：
Gson gson = new Gson();
Log.e("TAGS", "已知人脸额外对象：" + rec.getExtra());
Log.e("TAGS", "已知人脸额外JSON：" + gson.toJson(rec.getExtra()));
Object obj = gson.fromJson(gson.toJson(rec.getExtra()), Object.class);
Log.e("TAGS", "从JSON解析的已知人脸额外对象：" + obj);
我得到的响应是：
已知人脸额外对象：[[F@1f4af8f
已知人脸额外JSON：[[0.0010238411,-0.004055016]]
从JSON解析的已知人脸额外对象：[[0.0010238411, -0.004055016]]
我不确定为什么它无法转换回我所需的对象！
英文:
I tried this:
Gson gson = new Gson();
Log.e("TAGS", "Known Face extra obj: " + rec.getExtra());
Log.e("TAGS", "Known Face extra JSON: " + gson.toJson(rec.getExtra()));
Object obj = gson.fromJson(gson.toJson(rec.getExtra()), Object.class);
Log.e("TAGS", "Known Face extra from JSON: " + obj);
The response what I get is:
Known Face extra obj: [[F@1f4af8f
Known Face extra JSON: [[0.0010238411,-0.004055016]]
Known Face extra from JSON: [[0.0010238411, -0.004055016]]
I'm not sure why it is not converting back to the Object that I need!
答案1
得分: 1
也许你可以尝试在fromJson中指定类型，像这样：
Object obj = gson.fromJson(gson.toJson(rec), double[][].class);
英文:
Maybe you can try to specify the type in fromJson like
Object obj = gson.fromJson(gson.toJson(rec), double[][].class);
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