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non_static_inner_class_support_cn

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高铁 edited this page Mar 25, 2017 · 1 revision

非静态内嵌类支持

静态内嵌类

public class Model {
    public static class Item {
    }
}

非静态内嵌类

public class Model {
    public class Item {
    }
}

非静态内嵌类，编译之后，构造函数的参数是外层的类。在上面的例子中，Item的构造函数是：

Item (Model modelThis) {}

这样是的在反序列化时，构造内嵌类实例产生了一些麻烦，必须传入Model的实例。

fastjson支持哪些场景的非静态内嵌类的反序列化？

1. 直接内嵌

public class Model {
    public Item item;
    public class Item {
    }
}

Model model = JSON.parseObject("{\"item\":{}}", Model.class);

2. 直接List内嵌

public class Model {
    public List<Item> items;
    public class Item {
    }
}

Model model = JSON.parseObject("{\"items\":[{}]}", Model.class);

3. 直接Map内嵌

public class Model {
    public Map<String, Item> items;
    public class Item {
    }
}

Model model = JSON.parseObject("{\"items\":{\"123\":{}}}", Model.class);

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