2018-03-15 SpringBoot 搭建遇到maven无法下载

问题：idea 报的错误日志

java.lang.RuntimeException: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:

java.net.ConnectException: Connection refused: connect

at com.intellij.util.ExceptionUtil.rethrowAllAsUnchecked(ExceptionUtil.java:186)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl$2.fun(Maven3ServerEmbedderImpl.java:590)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl$2.fun(Maven3ServerEmbedderImpl.java:583)

at com.intellij.util.containers.ContainerUtil.mapNotNull(ContainerUtil.java:1913)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.resolveProject(Maven3ServerEmbedderImpl.java:583)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:346)

at sun.rmi.transport.Transport$1.run(Transport.java:200)

at sun.rmi.transport.Transport$1.run(Transport.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.Transport.serviceCall(Transport.java:196)

at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:748)

at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)

at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)

at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:162)

at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)

at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)

at com.sun.proxy.$Proxy139.resolveProject(Unknown Source)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at com.intellij.execution.rmi.RemoteUtil.invokeRemote(RemoteUtil.java:175)

at com.intellij.execution.rmi.RemoteUtil.access$300(RemoteUtil.java:36)

at com.intellij.execution.rmi.RemoteUtil$2$1$1.compute(RemoteUtil.java:156)

at com.intellij.execution.rmi.RemoteUtil.executeWithClassLoader(RemoteUtil.java:232)

at com.intellij.execution.rmi.RemoteUtil$2$1.invoke(RemoteUtil.java:153)

at com.sun.proxy.$Proxy139.resolveProject(Unknown Source)

at org.jetbrains.idea.maven.server.MavenEmbedderWrapper$5.execute(MavenEmbedderWrapper.java:125)

at org.jetbrains.idea.maven.server.MavenEmbedderWrapper$5.execute(MavenEmbedderWrapper.java:121)

at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:89)

at org.jetbrains.idea.maven.server.MavenEmbedderWrapper.resolveProject(MavenEmbedderWrapper.java:121)

at org.jetbrains.idea.maven.project.MavenProjectReader.resolveProject(MavenProjectReader.java:491)

at org.jetbrains.idea.maven.project.MavenProjectsTree.doResolve(MavenProjectsTree.java:1276)

at org.jetbrains.idea.maven.project.MavenProjectsTree.resolve(MavenProjectsTree.java:1248)

at org.jetbrains.idea.maven.project.MavenProjectsProcessorResolvingTask.perform(MavenProjectsProcessorResolvingTask.java:44)

at org.jetbrains.idea.maven.project.MavenProjectsProcessor.doProcessPendingTasks(MavenProjectsProcessor.java:132)

at org.jetbrains.idea.maven.project.MavenProjectsProcessor.access$000(MavenProjectsProcessor.java:32)

at org.jetbrains.idea.maven.project.MavenProjectsProcessor$2.run(MavenProjectsProcessor.java:107)

at org.jetbrains.idea.maven.utils.MavenUtil.lambda$runInBackground$5(MavenUtil.java:460)

at com.intellij.openapi.application.impl.ApplicationImpl$2.run(ApplicationImpl.java:343)

at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)

at java.util.concurrent.FutureTask.run(FutureTask.java:266)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)

at java.lang.Thread.run(Thread.java:745)

Caused by: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is:

java.net.ConnectException: Connection refused: connect

at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)

at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)

at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)

at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:130)

at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)

at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)

at com.sun.proxy.$Proxy2.info(Unknown Source)

at org.jetbrains.idea.maven.server.MavenServerLoggerWrapper.info(MavenServerLoggerWrapper.java:28)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.validate(Maven3ServerEmbedderImpl.java:977)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.createExecutionResult(Maven3ServerEmbedderImpl.java:924)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl.access$100(Maven3ServerEmbedderImpl.java:121)

at org.jetbrains.idea.maven.server.Maven3ServerEmbedderImpl$2.fun(Maven3ServerEmbedderImpl.java:587)