通过java驱动程序连接MongoDB时出现未知异常

我目前正试图通过java驱动程序连接到mongoDB数据库，当我运行上面的代码时，会遇到下面列出的异常。不知道该做什么或出了什么问题。如果出现导入或JRE问题，请尽可能列出要导入的零件

Java代码：

MongoClient mongoClient = new MongoClient(new 
MongoClientURI("mongodb+srv://wendulem:MYPASSWORD@cluster0 
ugj9q.mongodb.net/test?retryWrites=true"));
    MongoDatabase database = mongoClient.getDatabase("GradeU");
    MongoCollection<Document> collection = 
    database.getCollection("profiles");
    Document myDoc;
    myDoc = collection.find(eq("username", "admin")).first();
    System.out.println(myDoc.toJson());

MongoClient MongoClient=新的MongoClient（新的
MongoClientURI（“mongodb+srv://wendulem:MYPASSWORD@集群0
ugj9q.mongodb.net/test？retryWrites=true）；
MongoDatabase=mongoClient.getDatabase（“GradeU”）；
MongoCollection集合=
数据库。getCollection（“配置文件”）；
文件myDoc；
myDoc=collection.find（eq（“用户名”、“管理员”））.first（）；
System.out.println（myDoc.toJson（））；

控制台日志：

Jul 06, 2018 12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Cluster created with settings {hosts=[cluster0-shard-00-02-ugj9q.mongodb.net:27017, cluster0-shard-00-00-ugj9q.mongodb.net:27017, cluster0-shard-00-01-ugj9q.mongodb.net:27017], mode=MULTIPLE, requiredClusterType=REPLICA_SET, serverSelectionTimeout='30000 ms', maxWaitQueueSize=500, requiredReplicaSetName='Cluster0-shard-0'}
Jul 06, 2018 12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Adding discovered server cluster0-shard-00-02-ugj9q.mongodb.net:27017 to client view of cluster
Jul 06, 2018 12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Adding discovered server cluster0-shard-00-00-ugj9q.mongodb.net:27017 to client view of cluster
Jul 06, 2018 12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Adding discovered server cluster0-shard-00-01-ugj9q.mongodb.net:27017 to client view of cluster
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: No server chosen by com.mongodb.client.internal.MongoClientDelegate$1@11438d26 from cluster description ClusterDescription{type=REPLICA_SET, connectionMode=MULTIPLE, serverDescriptions=[ServerDescription{address=cluster0-shard-00-02-ugj9q.mongodb.net:27017, type=UNKNOWN, state=CONNECTING}, ServerDescription{address=cluster0-shard-00-01-ugj9q.mongodb.net:27017, type=UNKNOWN, state=CONNECTING}, ServerDescription{address=cluster0-shard-00-00-ugj9q.mongodb.net:27017, type=UNKNOWN, state=CONNECTING}]}. Waiting for 30000 ms before timing out
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Opened connection [connectionId{localValue:1, serverValue:4355}] to cluster0-shard-00-02-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Opened connection [connectionId{localValue:3, serverValue:4703}] to cluster0-shard-00-01-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Opened connection [connectionId{localValue:2, serverValue:7669}] to cluster0-shard-00-00-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Monitor thread successfully connected to server with description ServerDescription{address=cluster0-shard-00-00-ugj9q.mongodb.net:27017, type=REPLICA_SET_PRIMARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 6, 5]}, minWireVersion=0, maxWireVersion=6, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=21097463, setName='Cluster0-shard-0', canonicalAddress=cluster0-shard-00-00-ugj9q.mongodb.net:27017, hosts=[cluster0-shard-00-00-ugj9q.mongodb.net:27017, cluster0-shard-00-01-ugj9q.mongodb.net:27017, cluster0-shard-00-02-ugj9q.mongodb.net:27017], passives=[], arbiters=[], primary='cluster0-shard-00-00-ugj9q.mongodb.net:27017', tagSet=TagSet{[]}, electionId=7fffffff0000000000000001, setVersion=1, lastWriteDate=Fri Jul 06 12:49:50 EDT 2018, lastUpdateTimeNanos=75088686541038}
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Monitor thread successfully connected to server with description ServerDescription{address=cluster0-shard-00-01-ugj9q.mongodb.net:27017, type=REPLICA_SET_SECONDARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 6, 5]}, minWireVersion=0, maxWireVersion=6, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=28398802, setName='Cluster0-shard-0', canonicalAddress=cluster0-shard-00-01-ugj9q.mongodb.net:27017, hosts=[cluster0-shard-00-00-ugj9q.mongodb.net:27017, cluster0-shard-00-01-ugj9q.mongodb.net:27017, cluster0-shard-00-02-ugj9q.mongodb.net:27017], passives=[], arbiters=[], primary='cluster0-shard-00-00-ugj9q.mongodb.net:27017', tagSet=TagSet{[]}, electionId=null, setVersion=1, lastWriteDate=Fri Jul 06 12:49:50 EDT 2018, lastUpdateTimeNanos=75088689801046}
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Monitor thread successfully connected to server with description ServerDescription{address=cluster0-shard-00-02-ugj9q.mongodb.net:27017, type=REPLICA_SET_SECONDARY, state=CONNECTED, ok=true, version=ServerVersion{versionList=[3, 6, 5]}, minWireVersion=0, maxWireVersion=6, maxDocumentSize=16777216, logicalSessionTimeoutMinutes=30, roundTripTimeNanos=22170448, setName='Cluster0-shard-0', canonicalAddress=cluster0-shard-00-02-ugj9q.mongodb.net:27017, hosts=[cluster0-shard-00-00-ugj9q.mongodb.net:27017, cluster0-shard-00-01-ugj9q.mongodb.net:27017, cluster0-shard-00-02-ugj9q.mongodb.net:27017], passives=[], arbiters=[], primary='cluster0-shard-00-00-ugj9q.mongodb.net:27017', tagSet=TagSet{[]}, electionId=null, setVersion=1, lastWriteDate=Fri Jul 06 12:49:50 EDT 2018, lastUpdateTimeNanos=75088684046959}
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Setting max election id to 7fffffff0000000000000001 from replica set primary cluster0-shard-00-00-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Setting max set version to 1 from replica set primary cluster0-shard-00-00-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Discovered replica set primary cluster0-shard-00-00-ugj9q.mongodb.net:27017
Jul 06, 2018 12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
INFO: Closed connection [connectionId{localValue:4}] to cluster0-shard-00-00-ugj9q.mongodb.net:27017 because there was a socket exception raised by this connection.
Exception in thread "main" com.mongodb.MongoSecurityException: Exception authenticating MongoCredential{mechanism=SCRAM-SHA-1, userName='wendulem', source='admin', password=<hidden>, mechanismProperties={}}
    at com.mongodb.internal.connection.SaslAuthenticator.wrapException(SaslAuthenticator.java:173)
    at com.mongodb.internal.connection.SaslAuthenticator.access$300(SaslAuthenticator.java:40)
    at com.mongodb.internal.connection.SaslAuthenticator$1.run(SaslAuthenticator.java:70)
    at com.mongodb.internal.connection.SaslAuthenticator$1.run(SaslAuthenticator.java:47)
    at com.mongodb.internal.connection.SaslAuthenticator.doAsSubject(SaslAuthenticator.java:179)
    at com.mongodb.internal.connection.SaslAuthenticator.authenticate(SaslAuthenticator.java:47)
    at com.mongodb.internal.connection.InternalStreamConnectionInitializer.authenticateAll(InternalStreamConnectionInitializer.java:151)
    at com.mongodb.internal.connection.InternalStreamConnectionInitializer.initialize(InternalStreamConnectionInitializer.java:64)
    at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:127)
    at com.mongodb.internal.connection.UsageTrackingInternalConnection.open(UsageTrackingInternalConnection.java:50)
    at com.mongodb.internal.connection.DefaultConnectionPool$PooledConnection.open(DefaultConnectionPool.java:390)
    at com.mongodb.internal.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:106)
    at com.mongodb.internal.connection.DefaultConnectionPool.get(DefaultConnectionPool.java:92)
    at com.mongodb.internal.connection.DefaultServer.getConnection(DefaultServer.java:85)
    at com.mongodb.binding.ClusterBinding$ClusterBindingConnectionSource.getConnection(ClusterBinding.java:114)
    at com.mongodb.client.internal.ClientSessionBinding$SessionBindingConnectionSource.getConnection(ClientSessionBinding.java:111)
    at com.mongodb.operation.OperationHelper.withConnectionSource(OperationHelper.java:455)
    at com.mongodb.operation.OperationHelper.withConnection(OperationHelper.java:401)
    at com.mongodb.operation.FindOperation.execute(FindOperation.java:695)
    at com.mongodb.operation.FindOperation.execute(FindOperation.java:83)
    at com.mongodb.client.internal.MongoClientDelegate$DelegateOperationExecutor.execute(MongoClientDelegate.java:179)
    at com.mongodb.client.internal.FindIterableImpl.first(FindIterableImpl.java:198)
    at gradebook.grademain.main(grademain.java:39)
Caused by: com.mongodb.MongoCommandException: Command failed with error 8000 (AtlasError): 'bad auth Authentication failed.' on server cluster0-shard-00-00-ugj9q.mongodb.net:27017. The full response is { "ok" : 0, "errmsg" : "bad auth Authentication failed.", "code" : 8000, "codeName" : "AtlasError" }
    at com.mongodb.internal.connection.ProtocolHelper.getCommandFailureException(ProtocolHelper.java:179)
    at com.mongodb.internal.connection.InternalStreamConnection.receiveCommandMessageResponse(InternalStreamConnection.java:293)
    at com.mongodb.internal.connection.InternalStreamConnection.sendAndReceive(InternalStreamConnection.java:255)
    at com.mongodb.internal.connection.CommandHelper.sendAndReceive(CommandHelper.java:83)
    at com.mongodb.internal.connection.CommandHelper.executeCommand(CommandHelper.java:33)
    at com.mongodb.internal.connection.SaslAuthenticator.sendSaslContinue(SaslAuthenticator.java:134)
    at com.mongodb.internal.connection.SaslAuthenticator.access$200(SaslAuthenticator.java:40)
    at com.mongodb.internal.connection.SaslAuthenticator$1.run(SaslAuthenticator.java:67)

2018年7月6日12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
信息：使用以下设置创建的群集{hosts=[cluster0-shard-00-02-ugj9q.mongodb.net:27017，cluster0-shard-00-00-ugj9q.mongodb.net:27017，cluster0-shard-00-01-ugj9q.mongodb.net:27017]，模式=多个，requiredClusterType=副本集，serverSelectionTimeout='30000ms'，maxWaitQueueSize=500，requiredReplicateSetName='cluster0-shard-0'}
2018年7月6日12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
信息：将发现的服务器cluster0-shard-00-02-ugj9q.mongodb.net:27017添加到集群的客户端视图
2018年7月6日12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
信息：将发现的服务器cluster0-shard-00-00-ugj9q.mongodb.net:27017添加到集群的客户端视图
2018年7月6日12:49:55 PM com.mongodb.diagnostics.logging.JULLogger log
信息：将发现的服务器cluster0-shard-00-01-ugj9q.mongodb.net:27017添加到集群的客户端视图
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：com.mongodb.client.internal.MongoClientDelegate未选择服务器$1@11438d26来自集群描述ClusterDescription{type=REPLICA_SET，connectionMode=MULTIPLE，ServerDescription=[ServerDescription{address=cluster0-shard-00-02-ugj9q.mongodb.net:27017，type=UNKNOWN，state=CONNECTING}，ServerDescription{address=cluster0-shard-00-01-ugj9q.mongodb.net:27017，type=UNKNOWN，state=CONNECTING}，ServerDescription{address=cluster0-shard-00-00-ugj9q.mongodb.net:27017，type=UNKNOWN，state=CONNECTING}]}。等待30000ms后超时
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：已打开到cluster0-shard-00-02-ugj9q.mongodb.net:27017的连接[connectionId{localValue:1，serverValue:4355}]
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：已打开到cluster0-shard-00-01-ugj9q.mongodb.net:27017的连接[connectionId{localValue:3，serverValue:4703}]
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：已打开到cluster0-shard-00-00-ugj9q.mongodb.net:27017的连接[connectionId{localValue:2，serverValue:7669}]
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：监视器线程已成功连接到描述为ServerDescription{address=cluster0-shard-00-00-ugj9q.mongodb.net:27017，type=REPLICA\u SET\u PRIMARY，state=connected，ok=true，version=ServerVersion{versionList=[3,6,5]}，minWireVersion=0，maxWireVersion=6，maxDocumentSize=16777216，logicalSessionTimeoutMinutes=30，roundTripTimeNanos=21097463，setName='Cluster0-shard-0'，canonicalAddress=Cluster0-shard-00-00-ugj9q.mongodb.net:27017，主机=[cluster0-shard-00-00-ugj9q.mongodb.net:27017，cluster0-shard-00-01-ugj9q.mongodb.net:27017，cluster0-shard-00-02-ugj9q.mongodb.net:27017]，被动式=[]，仲裁者=[]，主class='cluster0-shard-00-00-00-ugj9q.mongodb.net:27017'，tagSet=tagSet{[]，electionId=7FFFFF0000000001，setVersion=1，lastWriteDate=Fri Jul 06 12:49:50 EDT 2018，lastUpdateTimeNanos=75088686541038}
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：监视器线程已成功连接到描述为ServerDescription{address=cluster0-shard-00-01-ugj9q.mongodb.net:27017，type=REPLICA\u SET\u SECONDARY，state=connected，ok=true，version=ServerVersion{versionList=[3,6,5]}，minWireVersion=0，maxWireVersion=6，maxDocumentSize=16777216，logicalSessionTimeoutMinutes=30，roundTripTimeNanos=28398802，setName='Cluster0-shard-0'，canonicalAddress=Cluster0-shard-00-01-ugj9q.mongodb.net:27017，主机=[cluster0-shard-00-00-ugj9q.mongodb.net:27017，cluster0-shard-00-01-ugj9q.mongodb.net:27017，cluster0-shard-00-02-ugj9q.mongodb.net:27017]，被动式=[]，仲裁者=[]，主class='cluster0-shard-00-00-00-ugj9q.mongodb.net:27017'，tagSet=tagSet{[]，electionId=null，setVersion=1，lastWriteDate=Fri Jul 06 12:49:50 EDT 2018，lastUpdateTimeNanos=75088689801046}
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：监视器线程已成功连接到描述为ServerDescription的服务器{address=cluster0-shard-00-02-ugj9q.mongodb.net:27017，type=REPLICA\u SET\u SECONDARY，state=connected，ok=true，version=ServerVersion{versionList=[3,6,5]}，minWireVersion=0，maxWireVersion=6，maxDocumentSize=16777216，logicalSessionTimeoutMinutes=30，roundTripTimeNanos=22170448，setName='Cluster0-shard-0'，canonicalAddress=Cluster0-shard-00-02-ugj9q.mongodb.net:27017，主机=[cluster0-shard-00-00-ugj9q.mongodb.net:27017，cluster0-shard-00-01-ugj9q.mongodb.net:27017，cluster0-shard-00-02-ugj9q.mongodb.net:27017]，被动式=[]，仲裁者=[]，主class='cluster0-shard-00-00-00-ugj9q.mongodb.net:27017'，tagSet=tagSet{[]，electionId=null，setVersion=1，lastWriteDate=Fri Jul 06 12:49:50 EDT 2018，lastUpdateTimeNanos=75088684046959}
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：从副本集primary cluster0-shard-00-00-ugj9q.mongodb.net:27017将最大选举id设置为7fffffff000000000000001
2018年7月6日12:49:56 PM com.mongodb.diagnostics.logging.JULLogger log
信息：从副本集主集群0-shard-00-00-ugj9q.mongodb.net:27017将最大集版本设置为1
2018年7月6日12:49:56