idea远程仓库无法更新导致的各种错误，jar包无法下载

直接把下面的配置替换成settings.xml中的内容

<?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">
		  
  <localRepository>D:\JAVA\repository</localRepository>

  
  <!-- pluginGroups
   | This is a list of additional group identifiers that will be searched when resolving plugins by their prefix, i.e.
   | when invoking a command line like "mvn prefix:goal". Maven will automatically add the group identifiers
   | "org.apache.maven.plugins" and "org.codehaus.mojo" if these are not already contained in the list.
   |-->
  <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
     | Specification for one proxy, to be used in connecting to the network.
     |
    <proxy>
      <id>optional</id>
      <active>true</active>
      <protocol>http</protocol>
      <username>proxyuser</username>
      <password>proxypass</password>
      <host>proxy.host.net</host>
      <port>80</port>
      <nonProxyHosts>local.net|some.host.com</nonProxyHosts>
    </proxy>
    -->
  </proxies>

  <!-- servers
   | This is a list of authentication profiles, keyed by the server-id used within the system.
   | Authentication profiles can be used whenever maven must make a connection to a remote server.
   |-->
  <servers>
    <!-- server
     | Specifies the authentication information to use when connecting to a particular server, identified by
     | a unique name within the system (referred to by the 'id' attribute below).
     |
     | NOTE: You should either specify username/password OR privateKey/passphrase, since these pairings are
     |       used together.
     |
    <server>
      <id>deploymentRepo</id>
      <username>repouser</username>
      <password>repopwd</password>
    </server>
    -->

    <!-- Another sample, using keys to authenticate.
    <server>
      <id>siteServer</id>
      <privateKey>/path/to/private/key</privateKey>
      <passphrase>optional; leave empty if not used.</passphrase>
    </server>
    -->
  </servers>

  <!-- mirrors
   | This is a list of mirrors to be used in downloading artifacts from remote repositories.
   |
   | It works like this: a POM may declare a repository to use in resolving certain artifacts.
   | However, this repository may have problems with heavy traffic at times, so people have mirrored
   | it to several places.
   |
   | That repository definition will have a unique id, so we can create a mirror reference for that
   | repository, to be used as an alternate download site. The mirror site will be the preferred
   | server for that repository.
   |-->
  <mirrors>
	 <mirror>

		 <id>alimaven</id>

		 <name>aliyun maven</name>

		 <url>http://maven.aliyun.com/nexus/content/groups/public/</url>

		 <mirrorOf>central</mirrorOf>

	</mirror>
		<!--<mirror>

		<id>nexus-aliyun</id>

		<mirrorOf>central</mirrorOf>

		<name>Nexus aliyun</name>

		<url>http://maven.aliyun.com/nexus/content/repositories/central</url>

	</mirror>-->
  </mirrors>
  <profiles>
	<profile>  
       <id>nexus</id>   
        <repositories>  
            <repository>  
                <id>nexus</id>  
                <name>local private nexus</name>  
                <url>https://maven.oschina.net/content/groups/public/</url>  
                <releases>  
                    <enabled>true</enabled>  
                </releases>  
                <snapshots>  
                    <enabled>false</enabled>  
                </snapshots>  
            </repository>  
        </repositories>  
           
        <pluginRepositories>  
            <pluginRepository>  
            <id>nexus</id>  
            <name>local private nexus</name>  
            <url>https://maven.oschina.net/content/groups/public/</url>  
            <releases>  
                <enabled>true</enabled>  
            </releases>  
            <snapshots>  
                <enabled>false</enabled>  
            </snapshots>  
            </pluginRepository>  
        </pluginRepositories>  
    </profile>
  </profiles>
</settings>