MongoSocketOpenException：打开套接字的异常

如何解决MongoSocketOpenException：打开套接字的异常

您好，在启动 Spring Boot 应用程序后出现以下错误。我已经安装了 momgodb。有人可以帮我解决这个问题吗。

2021-04-07 12:11:34.569 INFO 10268 --- [localhost:27017] org.mongodb.driver.cluster：连接到服务器 localhost:27017 时监视器线程中的异常

com.mongodb.MongoSocketopenException: 异常打开套接字 在 com.mongodb.connection.netty.NettyStream$OpenChannelFutureListener.operationComplete(NettyStream.java:439) ~[mongodb-driver-core-4.1.2.jar:na] 在 com.mongodb.connection.netty.NettyStream$OpenChannelFutureListener.operationComplete(NettyStream.java:407) ~[mongodb-driver-core-4.1.2.jar:na] 在 io.netty.util.concurrent.DefaultPromise.notifyListener0(DefaultPromise.java:578) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.notifyListeners0(DefaultPromise.java:571) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.notifyListenersNow(DefaultPromise.java:550) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.notifyListeners(DefaultPromise.java:491) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.setValue0(DefaultPromise.java:616) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.setFailure0(DefaultPromise.java:609) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.DefaultPromise.tryFailure(DefaultPromise.java:117) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.AbstractNioChannel$AbstractNIoUnsafe.fulfillConnectPromise(AbstractNioChannel.java:321) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.AbstractNioChannel$AbstractNIoUnsafe.finishConnect(AbstractNioChannel.java:337) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.60.Final.jar:4.1.60.Final] 在 java.lang.Thread.run(Thread.java:748) [na:1.8.0_161] 引起：io.netty.channel.AbstractChannel$AnnotatedConnectException：连接被拒绝：localhost/0:0:0:0:0:0:0:1:27017 引起：io.netty.channel.AbstractChannel$AnnotatedConnectException：连接被拒绝：localhost/0:0:0:0:0:0:0:1:27017

引起：java.net.ConnectException：连接被拒绝 引起：java.net.ConnectException：连接被拒绝

at sun.nio.ch.socketChannelImpl.checkConnect(Native Method) ~[na:1.8.0_161]
at sun.nio.ch.socketChannelImpl.finishConnect(SocketChannelImpl.java:717) ~[na:1.8.0_161]
at io.netty.channel.socket.nio.NioSocketChannel.doFinishConnect(NioSocketChannel.java:330) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.channel.nio.AbstractNioChannel$AbstractNIoUnsafe.finishConnect(AbstractNioChannel.java:334) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKey(NioEventLoop.java:707) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeysOptimized(NioEventLoop.java:655) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.channel.nio.NioEventLoop.processSelectedKeys(NioEventLoop.java:581) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.channel.nio.NioEventLoop.run(NioEventLoop.java:493) ~[netty-transport-4.1.60.Final.jar:4.1.60.Final]
at io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[netty-common-4.1.60.Final.jar:4.1.60.Final]
at io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[netty-common-4.1.60.Final.jar:4.1.60.Final]
at io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[netty-common-4.1.60.Final.jar:4.1.60.Final]
at java.lang.Thread.run(Thread.java:748) [na:1.8.0_161]