用二进制_id查询Mongodb java驱动程序

import com.mongodb.MongoClient;
import com.mongodb.MongoClientURI;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.MongoDatabase;
import org.bson.Document;
import org.bson.types.Binary;

public class MongoDBExample {
    public static void main(String[] args) {
        // 连接到Mongodb数据库
        MongoClientURI uri = new MongoClientURI("mongodb://localhost:27017");
        MongoClient mongoClient = new MongoClient(uri);
        MongoDatabase database = mongoClient.getDatabase("mydb");
        MongoCollection<Document> collection = database.getCollection("mycollection");

        // 构建查询条件
        Binary id = new Binary((byte) 0, new byte[12]); // 替换为实际的二进制_id值
        Document query = new Document("_id", id);

        // 执行查询
        Document result = collection.find(query).first();

        // 处理查询结果
        if (result != null) {
            // 输出查询结果
            System.out.println(result.toJson());
        } else {
            System.out.println("No matching document found.");
        }

        // 关闭数据库连接
        mongoClient.close();
    }
}