Java 反序列化映射中的自定义类型<；字符串，对象>；使用默认键入时

所以我有一个简单的对象：

public class State {
    private DateTime time;
    private Map<String, Object> map;

    ....
}

直接位于对象中的

DateTime

字段使用我的序列化程序进行序列化。映射中的基元类型也可以正确序列化，在必要时使用包装器数组中的类型信息来保留类型。但是，如果我将自定义类型（DateTime）放入映射并尝试序列化，我会遇到以下问题：

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Type id handling not implemented for type org.joda.time.DateTime (through reference chain: State["map"]->...HashMap["DateTime1"])
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:232)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:197)
at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:184)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:488)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:354)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:334)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:27)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:571)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:597)
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:142)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:569)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:597)
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:142)
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:118)
at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:2718)
at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:2210)
at com.rbs.agile.strategy.strategymanager.store.mongo.internal.JacksonDBObjectConverter.toDBObject(JacksonDBObjectConverter.java:26)
... 32 more

Caused by: java.lang.UnsupportedOperationException: Type id handling not implemented for type org.joda.time.DateTime
    at com.fasterxml.jackson.databind.JsonSerializer.serializeWithType(JsonSerializer.java:142)
    at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:484)
    ... 45 more

---

我也有同样的问题。这方面有进展吗？

Caused by: com.fasterxml.jackson.databind.JsonMappingException: Type id handling not implemented for type org.joda.time.DateTime (through reference chain: State["map"]->...HashMap["DateTime1"])
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:232)
at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:197)
at com.fasterxml.jackson.databind.ser.std.StdSerializer.wrapAndThrow(StdSerializer.java:184)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:488)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeFields(MapSerializer.java:354)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:334)
at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeWithType(MapSerializer.java:27)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:571)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:597)
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:142)
at com.fasterxml.jackson.databind.ser.BeanPropertyWriter.serializeAsField(BeanPropertyWriter.java:569)
at com.fasterxml.jackson.databind.ser.std.BeanSerializerBase.serializeFields(BeanSerializerBase.java:597)
at com.fasterxml.jackson.databind.ser.BeanSerializer.serialize(BeanSerializer.java:142)
at com.fasterxml.jackson.databind.ser.DefaultSerializerProvider.serializeValue(DefaultSerializerProvider.java:118)
at com.fasterxml.jackson.databind.ObjectMapper._configAndWriteValue(ObjectMapper.java:2718)
at com.fasterxml.jackson.databind.ObjectMapper.writeValueAsString(ObjectMapper.java:2210)
at com.rbs.agile.strategy.strategymanager.store.mongo.internal.JacksonDBObjectConverter.toDBObject(JacksonDBObjectConverter.java:26)
... 32 more

Caused by: java.lang.UnsupportedOperationException: Type id handling not implemented for type org.joda.time.DateTime
    at com.fasterxml.jackson.databind.JsonSerializer.serializeWithType(JsonSerializer.java:142)
    at com.fasterxml.jackson.databind.ser.std.MapSerializer.serializeTypedFields(MapSerializer.java:484)
    ... 45 more