[main] INFO com.course.Application - Started Application in 11.272 seconds (JVM running for 13.498)

启动springboot程序的时候出现 了这个问题：

2020-01-10 11:27:12.918 [main] INFO com.course.Application - Started Application in 11.272 seconds (JVM running for 13.498) 2020-01-10 11:27:13.143 [cluster-ClusterId{value='5e17ef0f1961c94ad6c394a2', description='null'}-localhost:27017] INFO org.mongodb.driver.cluster - Exception in monitor thread while connecting to server localhost:27017 com.mongodb.MongoSocketOpenException: Exception opening socket at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:70) at com.mongodb.internal.connection.InternalStreamConnection.open(InternalStreamConnection.java:128) at com.mongodb.internal.connection.DefaultServerMonitor$ServerMonitorRunnable.run(DefaultServerMonitor.java:117) at java.lang.Thread.run(Thread.java:748) Caused by: java.net.ConnectException: Connection refused: connect at java.net.DualStackPlainSocketImpl.waitForConnect(Native Method) at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:85) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at com.mongodb.internal.connection.SocketStreamHelper.initialize(SocketStreamHelper.java:64) at com.mongodb.internal.connection.SocketStream.initializeSocket(SocketStream.java:79) at com.mongodb.internal.connection.SocketStream.open(SocketStream.java:65) ... 3 common frames omitted

解决办法

在启动类添加注解排除MongoAutoConfiguration：

@SpringBootApplication(exclude = MongoAutoConfiguration.class)