当我在Eclipse中启动构建时，maven无法从中央存储库下载依赖项：
[WARNING] Could not transfer metadata org.apache.maven.plugins:maven-compiler-plugin/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.132.215] failed: Connection timed out: connect
org.eclipse.aether.transfer.MetadataTransferException: Could not transfer metadata org.apache.maven.plugins:maven-compiler-plugin/maven-metadata.xml from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.132.215] failed: Connection timed out: connect
at org.eclipse.aether.connector.basic.MetadataTransportListener.transferFailed (MetadataTransportListener.java:52)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:365)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:593)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$1.execute (DefaultMetadataResolver.java:513)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve (DefaultMetadataResolver.java:368)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata (DefaultMetadataResolver.java:191)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveMetadata (DefaultRepositorySystem.java:275)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolveFromRepository (DefaultPluginVersionResolver.java:131)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolve (DefaultPluginVersionResolver.java:94)
at org.apache.maven.lifecycle.internal.LifecyclePluginResolver.resolveMissingPluginVersions (LifecyclePluginResolver.java:86)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:124)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:144)
at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan (BuilderCommon.java:97)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:111)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (Unknown Source)
at java.lang.reflect.Method.invoke (Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.wagon.TransferFailedException: Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.132.215] failed: Connection timed out: connect
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:1069)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:963)
at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run (WagonTransporter.java:567)
at org.eclipse.aether.transport.wagon.WagonTransporter.execute (WagonTransporter.java:435)
at org.eclipse.aether.transport.wagon.WagonTransporter.get (WagonTransporter.java:412)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:453)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:360)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:593)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$1.execute (DefaultMetadataResolver.java:513)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve (DefaultMetadataResolver.java:368)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata (DefaultMetadataResolver.java:191)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveMetadata (DefaultRepositorySystem.java:275)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolveFromRepository (DefaultPluginVersionResolver.java:131)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolve (DefaultPluginVersionResolver.java:94)
at org.apache.maven.lifecycle.internal.LifecyclePluginResolver.resolveMissingPluginVersions (LifecyclePluginResolver.java:86)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:124)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:144)
at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan (BuilderCommon.java:97)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:111)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (Unknown Source)
at java.lang.reflect.Method.invoke (Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: org.apache.maven.wagon.providers.http.httpclient.conn.HttpHostConnectException: Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.132.215] failed: Connection timed out: connect
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultHttpClientConnectionOperator.connect (DefaultHttpClientConnectionOperator.java:159)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.PoolingHttpClientConnectionManager.connect (PoolingHttpClientConnectionManager.java:373)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.establishRoute (MainClientExec.java:381)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.execute (MainClientExec.java:237)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.ProtocolExec.execute (ProtocolExec.java:185)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RetryExec.execute (RetryExec.java:89)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RedirectExec.execute (RedirectExec.java:111)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.InternalHttpClient.doExecute (InternalHttpClient.java:185)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.CloseableHttpClient.execute (CloseableHttpClient.java:83)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.execute (AbstractHttpClientWagon.java:825)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:986)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:963)
at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run (WagonTransporter.java:567)
at org.eclipse.aether.transport.wagon.WagonTransporter.execute (WagonTransporter.java:435)
at org.eclipse.aether.transport.wagon.WagonTransporter.get (WagonTransporter.java:412)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:453)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:360)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:593)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$1.execute (DefaultMetadataResolver.java:513)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve (DefaultMetadataResolver.java:368)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata (DefaultMetadataResolver.java:191)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveMetadata (DefaultRepositorySystem.java:275)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolveFromRepository (DefaultPluginVersionResolver.java:131)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolve (DefaultPluginVersionResolver.java:94)
at org.apache.maven.lifecycle.internal.LifecyclePluginResolver.resolveMissingPluginVersions (LifecyclePluginResolver.java:86)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:124)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:144)
at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan (BuilderCommon.java:97)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:111)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (Unknown Source)
at java.lang.reflect.Method.invoke (Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
Caused by: java.net.ConnectException: Connection timed out: connect
at java.net.DualStackPlainSocketImpl.connect0 (Native Method)
at java.net.DualStackPlainSocketImpl.socketConnect (Unknown Source)
at java.net.AbstractPlainSocketImpl.doConnect (Unknown Source)
at java.net.AbstractPlainSocketImpl.connectToAddress (Unknown Source)
at java.net.AbstractPlainSocketImpl.connect (Unknown Source)
at java.net.PlainSocketImpl.connect (Unknown Source)
at java.net.SocksSocketImpl.connect (Unknown Source)
at java.net.Socket.connect (Unknown Source)
at org.apache.maven.wagon.providers.http.httpclient.conn.ssl.SSLConnectionSocketFactory.connectSocket (SSLConnectionSocketFactory.java:339)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.DefaultHttpClientConnectionOperator.connect (DefaultHttpClientConnectionOperator.java:142)
at org.apache.maven.wagon.providers.http.httpclient.impl.conn.PoolingHttpClientConnectionManager.connect (PoolingHttpClientConnectionManager.java:373)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.establishRoute (MainClientExec.java:381)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.MainClientExec.execute (MainClientExec.java:237)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.ProtocolExec.execute (ProtocolExec.java:185)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RetryExec.execute (RetryExec.java:89)
at org.apache.maven.wagon.providers.http.httpclient.impl.execchain.RedirectExec.execute (RedirectExec.java:111)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.InternalHttpClient.doExecute (InternalHttpClient.java:185)
at org.apache.maven.wagon.providers.http.httpclient.impl.client.CloseableHttpClient.execute (CloseableHttpClient.java:83)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.execute (AbstractHttpClientWagon.java:825)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:986)
at org.apache.maven.wagon.providers.http.wagon.shared.AbstractHttpClientWagon.fillInputData (AbstractHttpClientWagon.java:963)
at org.apache.maven.wagon.StreamWagon.getInputStream (StreamWagon.java:126)
at org.apache.maven.wagon.StreamWagon.getIfNewer (StreamWagon.java:88)
at org.apache.maven.wagon.StreamWagon.get (StreamWagon.java:61)
at org.eclipse.aether.transport.wagon.WagonTransporter$GetTaskRunner.run (WagonTransporter.java:567)
at org.eclipse.aether.transport.wagon.WagonTransporter.execute (WagonTransporter.java:435)
at org.eclipse.aether.transport.wagon.WagonTransporter.get (WagonTransporter.java:412)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$GetTaskRunner.runTask (BasicRepositoryConnector.java:453)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$TaskRunner.run (BasicRepositoryConnector.java:360)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector$DirectExecutor.execute (BasicRepositoryConnector.java:583)
at org.eclipse.aether.connector.basic.BasicRepositoryConnector.get (BasicRepositoryConnector.java:232)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$ResolveTask.run (DefaultMetadataResolver.java:593)
at org.eclipse.aether.util.concurrency.RunnableErrorForwarder$1.run (RunnableErrorForwarder.java:75)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver$1.execute (DefaultMetadataResolver.java:513)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolve (DefaultMetadataResolver.java:368)
at org.eclipse.aether.internal.impl.DefaultMetadataResolver.resolveMetadata (DefaultMetadataResolver.java:191)
at org.eclipse.aether.internal.impl.DefaultRepositorySystem.resolveMetadata (DefaultRepositorySystem.java:275)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolveFromRepository (DefaultPluginVersionResolver.java:131)
at org.apache.maven.plugin.version.internal.DefaultPluginVersionResolver.resolve (DefaultPluginVersionResolver.java:94)
at org.apache.maven.lifecycle.internal.LifecyclePluginResolver.resolveMissingPluginVersions (LifecyclePluginResolver.java:86)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:124)
at org.apache.maven.lifecycle.internal.DefaultLifecycleExecutionPlanCalculator.calculateExecutionPlan (DefaultLifecycleExecutionPlanCalculator.java:144)
at org.apache.maven.lifecycle.internal.builder.BuilderCommon.resolveBuildPlan (BuilderCommon.java:97)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:111)
at org.apache.maven.lifecycle.internal.LifecycleModuleBuilder.buildProject (LifecycleModuleBuilder.java:81)
at org.apache.maven.lifecycle.internal.builder.singlethreaded.SingleThreadedBuilder.build (SingleThreadedBuilder.java:56)
at org.apache.maven.lifecycle.internal.LifecycleStarter.execute (LifecycleStarter.java:128)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:305)
at org.apache.maven.DefaultMaven.doExecute (DefaultMaven.java:192)
at org.apache.maven.DefaultMaven.execute (DefaultMaven.java:105)
at org.apache.maven.cli.MavenCli.execute (MavenCli.java:954)
at org.apache.maven.cli.MavenCli.doMain (MavenCli.java:288)
at org.apache.maven.cli.MavenCli.main (MavenCli.java:192)
at sun.reflect.NativeMethodAccessorImpl.invoke0 (Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke (Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke (Unknown Source)
at java.lang.reflect.Method.invoke (Unknown Source)
at org.codehaus.plexus.classworlds.launcher.Launcher.launchEnhanced (Launcher.java:289)
at org.codehaus.plexus.classworlds.launcher.Launcher.launch (Launcher.java:229)
at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode (Launcher.java:415)
at org.codehaus.plexus.classworlds.launcher.Launcher.main (Launcher.java:356)
这是我在maven安装中的settings.xml的样子：
<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
<pluginGroups>
<!-- pluginGroup
| Specifies a further group identifier to use for plugin lookup.
<pluginGroup>com.your.plugins</pluginGroup>
-->
</pluginGroups>
<!-- proxies
| This is a list of proxies which can be used on this machine to connect to the network.
| Unless otherwise specified (by system property or command-line switch), the first proxy
| specification in this list marked as active will be used.
|-->
<proxies>
<proxy>
<id>optional1</id>
<active>true</active>
<protocol>http</protocol>
<username></username>
<password></password>
<host>proxy_url</host>
<port>8080</port>
<nonProxyHosts></nonProxyHosts>
</proxy>
<proxy>
<id>optional2</id>
<active>true</active>
<protocol>https</protocol>
<username>user here</username>
<password>password here</password>
<host>proxy_url</host>
<port>8080</port>
<nonProxyHosts></nonProxyHosts>
</proxy>
</proxies>
<servers>
</servers>
<mirrors>
</mirrors>
<profiles>
</profiles>
</settings>
我尝试更改settings.xml中的代理以添加代理配置，但是没有用，我还尝试在<mirrors>下添加一个镜像标记，以仅通过连接到中央Maven存储库http 这样
<mirror>
<id>central-no-ssl</id>
<name>Central without ssl</name>
<url>http://repo.maven.apache.org/maven2</url>
<mirrorOf>central</mirrorOf>
</mirror>
但是没有用。
我该如何解决？