Intellij 无法连接到本地 m2 存储库

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【中文标题】Intellij 无法连接到本地 m2 存储库【英文标题】：Intellij can't connect to local m2 repository 【发布时间】：2018-02-06 07:56:47 【问题描述】：

总结

我看到过一些问题[1][2][3] 与此有些相似，但没有一个答案能产生任何形式的成功。

所以，这是我看到的问题：

1) pom 提示无法连接到本地 .m2 存储库。

2) Intellij 中的 Maven 设置显示与本地 .m2 存储库的连接被拒绝的错误。

到目前为止我所做的尝试：

链接问题中的几乎所有内容。其中：

1) Delete the entire .m2/repository 文件夹手动，然后再次更新您的 Maven 项目。

2)Invalidate your Idea cache and restart Idea.

3)increasing Maven's allocated memory

4) Setting localhost to only 127.0.0.1

5)Adding -Djava.net.preferIPv4Stack=true flag

6) Starting Intellij with Java 1.7 instead of 1.8

7) 卸载并重新安装 Maven、Java 和 Intellij

其他信息：

$ java -version
java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

$ echo $JAVA_HOME
/Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home

$ mvn -version
Apache Maven 3.5.0 (ff8f5e7444045639af65f6095c62210b5713f426; 2017-04-03T12:39:06-07:00)
Maven home: /usr/local/apache-maven-3.5.0
Java version: 1.8.0_144, vendor: Oracle Corporation
Java home: /Library/Java/JavaVirtualMachines/jdk1.8.0_144.jdk/Contents/Home/jre
Default locale: en_US, platform encoding: UTF-8
OS name: "mac os x", version: "10.12.6", arch: "x86_64", family: "mac"

非常感谢任何帮助。

创意日志

2017-08-29 13:16:51,471 [12172337]   WARN -      #org.jetbrains.idea.maven - Failed to update Maven indices for: [local] /Users/donato/.m2/repository 
org.jetbrains.idea.maven.server.MavenServerIndexerException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused (Connection refused)
    at org.jetbrains.idea.maven.server.Maven3ServerIndexerImpl.updateIndex(Maven3ServerIndexerImpl.java:221)
    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$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:748)
    at sun.rmi.transport.StreamRemoteCall.exceptionReceivedFromServer(StreamRemoteCall.java:276)
    at sun.rmi.transport.StreamRemoteCall.executeCall(StreamRemoteCall.java:253)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:162)
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)
    at com.sun.proxy.$Proxy137.updateIndex(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$1.invoke(RemoteUtil.java:153)
    at com.sun.proxy.$Proxy137.updateIndex(Unknown Source)
    at org.jetbrains.idea.maven.server.MavenIndexerWrapper$3.execute(MavenIndexerWrapper.java:120)
    at org.jetbrains.idea.maven.server.RemoteObjectWrapper.perform(RemoteObjectWrapper.java:118)
    at org.jetbrains.idea.maven.server.MavenIndexerWrapper.updateIndex(MavenIndexerWrapper.java:115)
    at org.jetbrains.idea.maven.indices.MavenIndex.updateContext(MavenIndex.java:371)
    at org.jetbrains.idea.maven.indices.MavenIndex.updateOrRepair(MavenIndex.java:329)
    at org.jetbrains.idea.maven.indices.MavenIndices.updateOrRepair(MavenIndices.java:128)
    at org.jetbrains.idea.maven.indices.MavenIndicesManager.doUpdateIndices(MavenIndicesManager.java:276)
    at org.jetbrains.idea.maven.indices.MavenIndicesManager.access$200(MavenIndicesManager.java:52)
    at org.jetbrains.idea.maven.indices.MavenIndicesManager$3.run(MavenIndicesManager.java:243)
    at com.intellij.openapi.progress.impl.CoreProgressManager$TaskRunnable.run(CoreProgressManager.java:718)
    at com.intellij.openapi.progress.impl.CoreProgressManager.lambda$runProcess$1(CoreProgressManager.java:170)
    at com.intellij.openapi.progress.impl.CoreProgressManager.registerIndicatorAndRun(CoreProgressManager.java:548)
    at com.intellij.openapi.progress.impl.CoreProgressManager.executeProcessUnderProgress(CoreProgressManager.java:493)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl.executeProcessUnderProgress(ProgressManagerImpl.java:94)
    at com.intellij.openapi.progress.impl.CoreProgressManager.runProcess(CoreProgressManager.java:157)
    at com.intellij.openapi.progress.impl.ProgressManagerImpl$2.run(ProgressManagerImpl.java:165)
    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$Worker.run(ThreadPoolExecutor.java:617)
    at java.lang.Thread.run(Thread.java:745)
Caused by: java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
    java.net.ConnectException: Connection refused (Connection refused)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)
    at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)
    at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)
    at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:130)
    at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227)
    at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179)
    at com.sun.proxy.$Proxy29.setIndeterminate(Unknown Source)
    at org.jetbrains.idea.maven.server.Maven3ServerIndexerImpl.updateIndex(Maven3ServerIndexerImpl.java:152)
    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)
Caused by: java.net.ConnectException: Connection refused (Connection refused)
    at java.net.PlainSocketImpl.socketConnect(Native Method)
    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.SocksSocketImpl.connect(SocksSocketImpl.java:392)
    at java.net.Socket.connect(Socket.java:589)
    at java.net.Socket.connect(Socket.java:538)
    at java.net.Socket.<init>(Socket.java:434)
    at java.net.Socket.<init>(Socket.java:211)
    at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)
    at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)
    at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)
    ... 24 more
2017-08-29 13:17:07,836 [12188702]   WARN - ution.rmi.RemoteProcessSupport - java.rmi.ConnectException: Connection refused to host: localhost; nested exception is: 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - java.net.ConnectException: Connection refused (Connection refused) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:130) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at com.sun.proxy.$Proxy1.ping(Unknown Source) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at com.intellij.execution.rmi.RemoteServer.start(RemoteServer.java:83) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at org.jetbrains.idea.maven.server.RemoteMavenServer.main(RemoteMavenServer.java:22) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - Caused by: java.net.ConnectException: Connection refused (Connection refused) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at java.net.PlainSocketImpl.socketConnect(Native Method) 
2017-08-29 13:17:07,841 [12188707]   WARN - ution.rmi.RemoteProcessSupport - at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.Socket.connect(Socket.java:589) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.Socket.connect(Socket.java:538) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.Socket.<init>(Socket.java:434) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at java.net.Socket.<init>(Socket.java:211) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) 
2017-08-29 13:17:07,842 [12188708]   WARN - ution.rmi.RemoteProcessSupport - ... 8 more 
2017-08-29 13:17:21,180 [12202046]   INFO - .script.IdeScriptEngineManager - javax.script.ScriptEngineManager initialized in 34 ms 
2017-08-29 13:17:23,080 [12203946]   INFO - ij.compiler.impl.CompileDriver - COMPILATION STARTED (BUILD PROCESS) 
2017-08-29 13:17:23,756 [12204622]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stdout]: Build process started. Classpath: /Applications/IntelliJ IDEA CE.app/Contents/lib/jps-launcher.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/tools.jar:/Applications/IntelliJ IDEA CE.app/Contents/lib/optimizedFileManager.jar 
2017-08-29 13:17:23,859 [12204725]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". 
2017-08-29 13:17:23,860 [12204726]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: Defaulting to no-operation (NOP) logger implementation 
2017-08-29 13:17:23,860 [12204726]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. 
2017-08-29 13:17:27,244 [12208110]   INFO - pl.ProjectRootManagerComponent - project roots have changed 
2017-08-29 13:17:27,299 [12208165]   INFO - pl.ProjectRootManagerComponent - project roots have changed 
2017-08-29 13:17:27,305 [12208171]   INFO - .diagnostic.PerformanceWatcher - Pushing properties took 0ms; general responsiveness: ok; EDT responsiveness: ok 
2017-08-29 13:17:27,324 [12208190]   INFO - indexing.UnindexedFilesUpdater - Unindexed files update canceled 
2017-08-29 13:17:27,325 [12208191]   INFO - pl.ProjectRootManagerComponent - project roots have changed 
2017-08-29 13:17:27,333 [12208199]   INFO - .diagnostic.PerformanceWatcher - Pushing properties took 2ms; general responsiveness: ok; EDT responsiveness: ok 
2017-08-29 13:17:27,336 [12208202]   INFO - lij.compiler.impl.CompilerUtil -    COMPILATION FINISHED (BUILD PROCESS); Errors: 100; warnings: 3 took 4150 ms: 0 min 4sec 
2017-08-29 13:17:27,365 [12208231]   INFO - s.CompilerReferenceServiceImpl - backward reference index reader is opened 
2017-08-29 13:17:27,369 [12208235]   INFO - .diagnostic.PerformanceWatcher - Indexable file iteration took 36ms; general responsiveness: ok; EDT responsiveness: ok 
2017-08-29 13:17:27,635 [12208501]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stdout]: Build process started. Classpath: /Applications/IntelliJ IDEA CE.app/Contents/lib/jps-launcher.jar:/Library/Java/JavaVirtualMachines/jdk1.8.0_131.jdk/Contents/Home/lib/tools.jar:/Applications/IntelliJ IDEA CE.app/Contents/lib/optimizedFileManager.jar 
2017-08-29 13:17:27,704 [12208570]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". 
2017-08-29 13:17:27,704 [12208570]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: Defaulting to no-operation (NOP) logger implementation 
2017-08-29 13:17:27,704 [12208570]   INFO - j.compiler.server.BuildManager - BUILDER_PROCESS [stderr]: SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details.

更新

您使用的是哪个settings.xml？

/Users/donato/.m2/settings.xml

您在 IntelliJ 中打开的任何 Maven 项目是否会发生这种情况，或者只是这个项目？

所有 maven 项目都会出现这种情况

此外，除了 Intellij 显示索引失败之外，如果从 Maven 面板调用，您的构建是否有效？

构建失败，提示找不到很多符号。

【问题讨论】：

如果没有idea.log 中的错误，则无法判断您的具体情况是什么问题。另请参阅***.com/a/42427510/104891。 您在 IntelliJ 中打开的任何 Maven 项目是否会发生这种情况，或者只是这个项目？此外，除了 Intellij 显示索引失败之外，如果从 Maven 面板调用，您的构建是否有效？ 您使用的是哪个settings.xml？在这里检查：文件 > 设置 > 构建，.. > 构建工具 > Maven > 用户设置文件 关于settings.xml 我的意思是IDEA使用的这个文件是否包含存储库的正确路径？如果文件不存在，则默认位置为~/.m2 您是否有防火墙阻止 IntelliJ 接受某些传入的网络连接？看到这个帖子why-does-intellij-want-to-accept-incoming-network-connections。纯属猜测。 【参考方案1】：

终于解决了问题。我的/etc/hosts 文件中有一个无效字符，它阻止了与本地主机的任何连接。这是在我输入以下命令时发现的：

$ file -b /etc/hosts
UTF-8 Unicode text

我在 etc 主机中手动输入了正确的值，现在一切正常。

【讨论】：

【参考方案2】：

我有两个建议：

    如果有代理，在setting.xml中添加其配置参数 您必须指定：

    <proxy> <active></active> <protocol></protocol> <host></host> <port></port> <username></username> <password></password> </proxy>

    复制/粘贴 127.0.0.1 localhost 到您的主机文件中

【讨论】：

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