我在通过Eclipse设置Java(17.0.1(与MongoDb(5.0.3(的连接时遇到了问题。有人能帮忙解决这个问题吗。
package DemoMongo.DemoMongo;
import com.mongodb.*; import com.mongodb.client.MongoClients; import
com.mongodb.client.MongoClient; import
com.mongodb.client.MongoCollection; import
com.mongodb.client.MongoDatabase; import
com.mongodb.client.model.Filters;
import com.mongodb.client.model.UpdateOptions; import
com.mongodb.client.result.*; import org.bson.Document; import
org.bson.types.ObjectId;
import java.util.List; import java.util.Arrays; import
java.util.ArrayList;
import static com.mongodb.client.model.Filters.*; import static
com.mongodb.client.model.Updates.*;
public class DemoMongoDatabase {
public static void main(String[] args) { // TODO Auto-generated
method stub
// Step-1 Connection
MongoClient mongoClient = MongoClients.create("mongodb://hostOne:27017,hostTwo:27018");
MongoDatabase database = mongoClient.getDatabase("my_database");
MongoCollection<Document> toys = database.getCollection("toys");
//Create a new document Document doc = new
Document().append("username","****").append("pwd","****");
toys.insertOne(doc); mongoClient.close(); }
}
2021年11月13日下午5:12:27 com.mongoodb.diagnostics.logging记录器应使用SLF4J警告：在类路径上找不到SLF4J。已禁用"org.mongodb.driver"组件的日志记录线程中的异常"；主"；com.mongodb.MongoTimeoutException：等待连接时在30000毫秒后超时。群集状态的客户端视图为｛type=UNKNOWN，servers=[｛address=hosttwo:27018，type=UNNOWN，state=CONECTING，exception={com.mongodb.MongoSocketException:hosttwo｝，由｛java.net.UnnknownHostException：hosttwo}｝引起，｛address=hostone:27017，type=UNKNOWN、state=CONTING，exception=｛com.mongoodb.MongoSocketException：hostone｝位于com.mongodb.internal.connection.BaseCluster.getDescription(BaseCluster.java:177(网址：com.mongodb.internal.connection.AbstractMultiServerCluster.getDescription(AbstractMultiServerCluster.java:54(网址：com.mongodb.client.internal.MongoClientDelegate.getConnectedClusterDescription(MongoClientDelicate.java:147(网址：com.mongodb.client.internal.MongoClientDelegate.createClientSession(MongoClientDelicate.java:98(网址：com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutior.getClientSession(MongoClientDelicate.java:278(网址：com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecution.execute(MongoClientDelicate.java:202(位于com.mongodb.client.internal.MongoCollectionImpl.executeSingleWriteRequest(MongoCollectionImpl.java:1008(位于com.mongodb.client.internal.MongoCollectionImpl.executeInsertOne(MongoCollectionImpl.java:469(网址：com.mongodb.client.internal.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:452(网址：com.mongodb.client.internal.MongoCollectionImpl.insertOne(MongoCollectionImpl.java:446(在DemoMongo.DemoMongo.DemoMongoDatabase.main(DemoMongoDB.java:34(
将SL4J作为build.gradle 的依赖项添加到类路径
dependencies {
implementation 'org.slf4j:slf4j-log4j12:1.7.36'
}
在连接到MongoDB 之前，通过添加以下行进行初始化
Logger logger = Logger.getLogger(DemoMongoDatabase.class);
BasicConfigurator.configure();