如何在HttpSession中存储和检索ObjectId？(MonoDB Java驱动程序)

<dependency>
    <groupId>org.mongodb</groupId>
    <artifactId>mongo-java-driver</artifactId>
    <version>3.12.10</version>
</dependency>

MongoClient mongoClient = new MongoClient("localhost", 27017);

MongoDatabase database = mongoClient.getDatabase("your_database_name");
MongoCollection<Document> collection = database.getCollection("your_collection_name");

ObjectId objectId = new ObjectId();
Document document = new Document("_id", objectId);
collection.insertOne(document);

HttpSession session = request.getSession();
session.setAttribute("objectId", objectId.toString());

HttpSession session = request.getSession();
String objectIdString = (String) session.getAttribute("objectId");
ObjectId objectId = new ObjectId(objectIdString);

Document document = collection.find(eq("_id", objectId)).first();