使用原始DBCollection时找不到编解码器

Question

首先，我正在使用旧的mongo驱动程序（1.5.6），但无法更新它。另外，在使用MongoTemplate时，我们也遇到了严重的性能问题，因此我们决定避免使用它。相反，我们遍历DBCollection

public class CustomMongoTemplate {
    private final DBCollection collection;
    private DBToEntityTranslator dbToEntityTranslator = new DBToEntityTranslator();

    public CustomMongoTemplate(MongoConfig mongoConfiguration) {
        collection = mongoConfiguration.getCollection();       
    }

    public List<MyEntity> find(Query query) {
        return convert(doFind(query));
    }

    private DBCursor doFind(Query query) {
        return collection.find(query.getQueryObject());
    }

    private List<MyEntity> convert(DBCursor cursor) {
        List<MyEntity> entities = new ArrayList<>();
        while (cursor.hasNext()) {
            entities .add(dbToEntityTranslator.toEntity((cursor.next())));
        }

        return entities ;
    }
}

这是我的配置类。

@Configuration
public class MongoConfig extends AbstractMongoConfiguration {


    private DBCollection collection;

    @PostConstruct
    private void init() throws Exception {
        DB db = mongo().getDB(dbName);
        collection = db.getCollection("mycollection");
    }

    @Override
    protected String getDatabaseName() {
        return dbName;
    }

    @Override
    public Mongo mongo() throws Exception {
        CodecProvider pojoCodecProvider = PojoCodecProvider.builder().register("com.company.entities").build();
        CodecRegistry pojoCodecRegistry = fromRegistries(MongoClient.getDefaultCodecRegistry(), fromProviders(pojoCodecProvider));

        MongoClientOptions mongoClientOptions = MongoClientOptions.builder().codecRegistry(pojoCodecRegistry).build();

        return new MongoClient(Collections.singletonList(new ServerAddress(host, port)),
                Collections.singletonList(MongoCredential.createMongoCRCredential(userName, dbName, password.toCharArray())),
                mongoClientOptions);
    }

如您所见，我正在尝试在CodecRegistry中注册我的实体类，所以我可以使用看起来像这样的Criteria

criteria.add((Criteria.where("root.myEntity").exists(true).all(myEntity)));

myEntity是我应注册的类com.company.entities.MyEntity的对象。但是，当我尝试运行此代码时，我会得到

  

“找不到类com.company.entities.MyEntity的编解码器。”