Question

我们使用XStream将对象序列化为JSON，反之亦然。

我们像这样启动xStream

XStream xStream = new XStream(new JettisonMappedXmlDriver(new Configuration(), false)); xStream.ignoreUnknownElements(); xStream.setMode(XStream.XPATH_RELATIVE_REFERENCES);

我们有测试类

public static class TestWOWithBI implements Serializable{
    private static final long serialVersionUID = -4720678317857471031L;

    private transient String customerNickname;
    private transient String customerUuid;
    private transient BigInteger discussionId;
    private transient String message;

    public TestWOWithBI(String customerNickname, String customerUuid, BigInteger discussionId, String message){
        this.customerNickname = customerNickname;
        this.customerUuid = customerUuid;
        this.discussionId = discussionId;
        this.message = message;
    }

    private final void writeObject(final ObjectOutputStream out) throws IOException {
        out.defaultWriteObject();
        out.writeObject(customerNickname);
        out.writeObject(customerUuid);
        out.writeObject(discussionId);
        out.writeObject(message);
    }

    private final void readObject(final ObjectInputStream in) throws IOException, ClassNotFoundException{
        in.defaultReadObject();
        customerNickname = (String) in.readObject();
        customerUuid = (String) in.readObject();
        discussionId = (BigInteger) in.readObject();
        message = (String) in.readObject();
    }
}

序列化后，它看起来像这样：

{ “somethere.ObjectToJSONSerializerTest $ TestWOWithBI”：{ “@serialization”：“custom”， “somethere.ObjectToJSONSerializerTest $ TestWOWithBI”：{ “默认”：“”， “string”：[“name”，的 “uuid”， “信息”]， “big-int”：1 } } }

并且反序列化因类强制转换而失败。它是1.3.1和1.4.7版本。看起来像我的错误，但可能是某些设置在哪里？

UPD：看起来像org.codehaus.jettison.mapped.MappedXMLStreamWriter.JSONPropertyObject #withProperty

if(old != null) {
JSONArray values;
// Convert an existing property to an array
// and append to the array
if (old instanceof JSONArray) {
    values = (JSONArray)old;
} else {
    values = new JSONArray();
    values.put(old);
}
values.put(value);

object.put(property.getKey(), values);
} else if(getSerializedAsArrays().contains(property.getKey())) {
JSONArray values = new JSONArray();
values.put(value);
object.put(property.getKey(), values);
} else {
// Add the property directly.
object.put(property.getKey(), value);
}

它只是对相同类型的元素进行分组。

xStream使用JSON序列化更改write / readObject中对象的顺序

0 个答案: