Meine Dokumentstruktur ist wie folgt:

{
    _id: "A",
    groups:[{
        groupId: "someId",
        groupName: "someName",
        params: {
            type1: ["a", "b"],
            type2: ["c", d]
        }
    }],
    config: {
        person: {}
        dataDetails: {
            dataTypeDetails: {},
            dataList: ["dt1", "dt2"]
        }
    }
}

Meine Spring Data MongoDB-Modelltypen sehen folgendermaßen aus:

// Imports etc.
@Document
public class Entity {

    @Id
    private String _id;

    private List<Group> groups;
    private Config config;
    // setters and getters

    public class Group {
        private String groupId;
        private String groupName;
        private ParamData params;

        // setter and getters
    }

    public class ParamData {
        private List<String> type1;
        private List<String> type2;
    }

    public class Config {
        private Map person;
        private DataConfig dataDetails;
    }

    public class DataConfig {
        private Map dataTypeDetails;
        private List<String> dataList;
    }
}

Stacktrace:

org.springframework.data.mapping.model.MappingInstantiationException: Failed to instantiate com.****.common.models.Entity$ParamData using constructor public com.****.common.models.Entity$ParamData(com.****.common.models.Entity) with arguments com.****.common.models.Entity$Group@2eb61a7b
    at org.springframework.data.convert.ReflectionEntityInstantiator.createInstance(ReflectionEntityInstantiator.java:78)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:257)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:237)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readValue(MappingMongoConverter.java:1136)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.access$100(MappingMongoConverter.java:78)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$MongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1085)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.getValueInternal(MappingMongoConverter.java:816)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$1.doWithPersistentProperty(MappingMongoConverter.java:270)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$1.doWithPersistentProperty(MappingMongoConverter.java:263)
    at org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties(BasicPersistentEntity.java:261)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:263)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:237)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readCollectionOrArray(MappingMongoConverter.java:861)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.readValue(MappingMongoConverter.java:1134)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.access$100(MappingMongoConverter.java:78)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$MongoDbPropertyValueProvider.getPropertyValue(MappingMongoConverter.java:1085)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.getValueInternal(MappingMongoConverter.java:816)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$1.doWithPersistentProperty(MappingMongoConverter.java:270)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter$1.doWithPersistentProperty(MappingMongoConverter.java:263)
    at org.springframework.data.mapping.model.BasicPersistentEntity.doWithProperties(BasicPersistentEntity.java:261)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:263)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:237)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:201)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:197)
    at org.springframework.data.mongodb.core.convert.MappingMongoConverter.read(MappingMongoConverter.java:78)
    at org.springframework.data.mongodb.core.MongoTemplate$ReadDbObjectCallback.doWith(MongoTemplate.java:2016)
    at org.springframework.data.mongodb.core.MongoTemplate.executeFindMultiInternal(MongoTemplate.java:1700)
    at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1523)
    at org.springframework.data.mongodb.core.MongoTemplate.doFind(MongoTemplate.java:1507)
    at org.springframework.data.mongodb.core.MongoTemplate.find(MongoTemplate.java:532)
    at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:497)
    at org.springframework.data.mongodb.core.MongoTemplate.findOne(MongoTemplate.java:489)

My in DAO Ich versuche, das Dokument nach Bezeichner abzurufen, aber es schlägt nur für die Werte bei dataDetails und params fehl. Wenn ich das @ auskommentieParamDataparam, ich bekomme eine Fehlermeldung fürDataConfig. Die Daten wurden mithilfe von Befehlszeilen- / Knotenskripten hinzugefügt und nicht mithilfe dieses Codes. Aber es wird sowohl von node / mongoose als auch von der Kommandozeile korrekt abgerufen.