maven version：Apache Maven 3.0.5

Java version: 1.7.0_80

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按老师的操作执行到mnv compile时报错：

[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.5 from/to central (http://repo.maven.apache.org/maven2): Failed to transfer file: http://repo.maven.apache.org/maven2/org/apache/maven/plugins/maven-resources-plugin/2.5/maven-resources-plugin-2.5.pom. Return code is: 501 , ReasonPhrase:HTTPS Required. -> [Help 1]

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百度了一下，修改了settings.xml，增加：

<mirror>
      <id>repo1</id>
      <mirrorOf>central</mirrorOf>
      <name>Maven Repository Switchboard</name>
      <url>https://repo1.maven.org/maven2/</url>    
</mirror>
    
<mirror>      
      <id>repo2</id>      
      <mirrorOf>central</mirrorOf>      
      <name>Human Readable Name for this Mirror.</name>      
      <url>https://repo2.maven.org/maven2/</url>    
</mirror>

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继续mvn compile，继续报错：

[ERROR] Plugin org.apache.maven.plugins:maven-resources-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-resources-plugin:jar:2.5: Could not transfer artifact org.apache.maven.plugins:maven-resources-plugin:pom:2.5 from/to repo1 (https://repo1.maven.org/maven2/): peer not authenticated -> [Help 1]

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在本地包里找不到maven-resources-plugin:2.5，按百度到的方法修改pom.xml，加入：

<dependency>		
<groupId>org.apache.maven.plugins</groupId>			
<artifactId>maven-resources-plugin</artifactId>			
<version>2.5</version>		
</dependency>

然后不知道该怎么做了。