用Java将MongoDB查询结果保存到不同的变量中

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

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

        // 执行查询操作
        Document query = new Document("name", "John");
        FindIterable<Document> result = collection.find(query);

        // 将查询结果保存到不同的变量中
        String name = null;
        int age = 0;
        String address = null;

        for (Document document : result) {
            name = document.getString("name");
            age = document.getInteger("age");
            address = document.getString("address");
        }

        // 打印结果
        System.out.println("Name: " + name);
        System.out.println("Age: " + age);
        System.out.println("Address: " + address);

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