MongoDB Java Driver 4.1.1 如何配置超时设置

MongoDB Java Driver是一种用于在Java应用程序中与MongoDB数据库进行交互的工具。在使用MongoDB Java Driver时，我们经常需要对连接和操作设置超时时间，以便在遇到慢查询或网络问题时能够及时做出响应。本文将介绍如何配置超时设置，并提供相应的代码示例。

java
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.MongoTimeoutException;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoClient;
public class ConnectionTimeoutExample {
    public static void main(String[] args) {
        ConnectionString connectionString = new ConnectionString("mongodb://localhost:27017");
        MongoClientSettings settings = MongoClientSettings.builder()
                .applyConnectionString(connectionString)
                .connectTimeout(5000) // 设置连接超时时间为5秒
                .build();
        try {
            MongoClient client = MongoClients.create(settings);
            // 连接成功，进行后续操作
        } catch (MongoTimeoutException e) {
            System.err.println("连接超时");
        }
    }
}

java
import com.mongodb.ConnectionString;
import com.mongodb.MongoClientSettings;
import com.mongodb.client.MongoClients;
import com.mongodb.client.MongoClient;
import com.mongodb.client.MongoCollection;
import com.mongodb.client.model.Filters;
import org.bson.Document;
import java.util.concurrent.TimeUnit;
public class OperationTimeoutExample {
    public static void main(String[] args) {
        ConnectionString connectionString = new ConnectionString("mongodb://localhost:27017");
        MongoClientSettings settings = MongoClientSettings.builder()
                .applyConnectionString(connectionString)
                .build();
        MongoClient client = MongoClients.create(settings);
        MongoCollection collection = client.getDatabase("mydb").getCollection("mycollection");
        collection.find(Filters.eq("name", "John"))
                .maxTime(2000, TimeUnit.MILLISECONDS) // 设置操作超时时间为2秒
                .forEach((Consumer) System.out::println);
    }
}