Mongo DB查询的等价JAVA Spring Boot代码是什么

import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoDatabase;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.model.Filters;
import org.bson.Document;

public class MongoDBExample {
    public static void main(String[] args) {
        // 连接到MongoDB数据库
        MongoClient mongoClient = MongoClients.create("mongodb://localhost:27017");
        
        // 选择数据库
        MongoDatabase database = mongoClient.getDatabase("mydb");
        
        // 选择集合
        MongoCollection<Document> collection = database.getCollection("mycollection");
        
        // 构建查询条件
        Document query = new Document("name", "John");
        
        // 执行查询
        Document result = collection.find(query).first();
        
        // 输出结果
        System.out.println(result.toJson());
        
        // 关闭连接
        mongoClient.close();
    }
}