有没有可以序列化Proxy对象的JSON库？

发布于 2024-08-30 15:17:04 字数 850 浏览 4 评论 0原文

使用 ActiveObjects 作为我的 ORM，使用 Gson 作为我的 JSON 处理器。

从以下位置转到 Json 时遇到问题持久化的对象。问题是我的持久类实际上是接口和 AO 在底层代理该对象。这是一些示例代码：

    Venue venue = manager.get(Venue.class, id);
    gson.toJson(venue);

出现此异常：

java.lang.UnsupportedOperationException: Expecting parameterized type,
got interface java.lang.reflect.InvocationHandler.
 Are you missing the use of TypeToken idiom?
 See http://sites.google.com/site/gson/gson-user-guide#TOC-Serializing-and...

因为venue.getClass().getName() 给出：

$Proxy228

我已经尝试了各种组合的一些解决方案：

    gsonBuilder.registerTypeAdapter(Venue.class, newVenueSerializer());
    Type listType = new TypeToken<Venue>() {}.getType();

到目前为止没有任何效果，我正在使用一个不稳定的字段- 现场解决方法。有什么建议吗？我没有与 Gson 结婚，所以如果有一个替代库可以做到这一点，我很乐意使用它。

原文

Using ActiveObjects as my ORM and Gson as my JSON processor.

Ran into a problem going toJson from
persisted objects. The problem is that my persisted class is actually
an Interface and AO is proxying that object under the hood. Here's
some sample code:

    Venue venue = manager.get(Venue.class, id);
    gson.toJson(venue);

Comes up with this exception:

java.lang.UnsupportedOperationException: Expecting parameterized type,
got interface java.lang.reflect.InvocationHandler.
 Are you missing the use of TypeToken idiom?
 See http://sites.google.com/site/gson/gson-user-guide#TOC-Serializing-and...

Because venue.getClass().getName() gives:

$Proxy228

I've tried a few solutions in various combinations:

    gsonBuilder.registerTypeAdapter(Venue.class, newVenueSerializer());
    Type listType = new TypeToken<Venue>() {}.getType();

Nothing has worked so far and I'm using a wonky field-by-field workaround. Any suggestions? I'm not married to Gson, so if there's an alternative library that can do this I'd be happy to use it.

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