具有任意JSON密钥的JacksonObjectMapper-JacksonObjectMapperwitharbitraryJSONkeys

I'm using Jackson 1.9.5 in an Android project to parse JSON files.

我在Android项目中使用Jackson 1.9.5来解析JSON文件。

So far I haven't had any problems, and can parse files fine using the following code:

到目前为止，我没有遇到任何问题，可以使用以下代码解析文件：

AssetManager mgr = getAssets();
ObjectMapper mapper = new ObjectMapper();

try {
    InputStream ifp = mgr.open("detail_schema.json");
    schema = mapper.readValue(ifp, DetailSchema.class);
} catch (IOException e) {
    e.printStackTrace();
}

Where the DetailSchema class consists of a mix of primitive types and classes. I'm now running into a problem where I want to parse some JSON like the following:

DetailSchema类由原始类型和类组合而成。我现在遇到一个问题，我想解析一些JSON，如下所示：

"fields": {
    "Suburb": "Paddington",
    "State": "NSW",
    "Post Code": "2074",
    "Lollipop": "Foo Bar Haz"
}

Where I can't possibly know the map keys before hand (they can be user-defined). As such, I'm not sure what the associated Java class should look like.

我不可能事先知道地图键（他们可以是用户定义的）。因此，我不确定关联的Java类应该是什么样子。

Ie, for this example, it could look like:

即，对于这个例子，它可能看起来像：

public class MyClass {

    public String Suburb;
    public String State;
    public String PostCode;
    public String Lollipop;

}

But this may not be correct for another instance of the JSON file. Ideally I need some way for Jackson to map values to something like a NameValuePair. I suspect that the automatic object mapping may not be an option in this case - can someone confirm or deny this?

但是对于JSON文件的另一个实例，这可能不正确。理想情况下，我需要一些方法让Jackson将值映射到类似NameValuePair的东西。我怀疑在这种情况下自动对象映射可能不是一个选项 - 有人可以确认或否认这个吗？

1 个解决方案

InputStream ifp = mgr.open("detail_schema.json");
JsonNode root = mapper.readTree(ifp);
JsonNode fields = root.get("fields");
for (JsonNode children : fields.getElements()) {
    // ...
}

public class MyClass {
    public Map fields;

    // getter/setters
}