idea 创建maven项目一直失败，什么原因？build一直不行。。

    D:\software\jdk1.8.0_60\bin\java "-Dmaven.home=D:\software\idea\IntelliJ IDEA 2016.2.4\plugins\maven\lib\maven3" "-Dclassworlds.conf=D:\software\idea\IntelliJ IDEA 2016.2.4\plugins\maven\lib\maven3\bin\m2.conf" -Dfile.encoding=UTF-8 -classpath "D:\software\idea\IntelliJ IDEA 2016.2.4\plugins\maven\lib\maven3\boot\plexus-classworlds-2.4.jar" org.codehaus.classworlds.Launcher -Didea.version=2016.2.4 -s D:\software\apache-maven-3.3.9\conf\settings.xml -DinteractiveMode=false -DgroupId=com.salamander -DartifactId=backcal -Dversion=1.0-SNAPSHOT -DarchetypeGroupId=org.apache.maven.archetypes -DarchetypeArtifactId=maven-archetype-webapp -DarchetypeVersion=RELEASE -DarchetypeCatalog=internal org.apache.maven.plugins:maven-archetype-plugin:RELEASE:generate
    [INFO] Scanning for projects...
    [INFO]                                                                         
    [INFO] ------------------------------------------------------------------------
    [INFO] Building Maven Stub Project (No POM) 1
    [INFO] ------------------------------------------------------------------------
    [INFO] 
    [INFO] >>> maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom >>>
    [INFO] 
    [INFO] <<< maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom <<<
    [INFO] 
    [INFO] --- maven-archetype-plugin:2.4:generate (default-cli) @ standalone-pom ---
    Downloading: http://repo.maven.apache.org/maven2/org/codehaus/groovy/groovy/1.8.3/groovy-1.8.3.jar
    [INFO] ------------------------------------------------------------------------
    [INFO] BUILD FAILURE
    [INFO] ------------------------------------------------------------------------
    [INFO] Total time: 26.608s
    [INFO] Finished at: Fri Nov 04 13:57:08 CST 2016
    [INFO] Final Memory: 9M/155M
    [INFO] ------------------------------------------------------------------------
    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-archetype-plugin:2.4:generate (default-cli) on project standalone-pom: Execution default-cli of goal org.apache.maven.plugins:maven-archetype-plugin:2.4:generate failed: Plugin org.apache.maven.plugins:maven-archetype-plugin:RELEASE or one of its dependencies could not be resolved: Could not transfer artifact org.codehaus.groovy:groovy:jar:1.8.3 from/to central (http://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:80 [repo.maven.apache.org/151.101.36.215] failed: Connection timed out: connect -> [Help 1]
    [ERROR] 
    [ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
    [ERROR] Re-run Maven using the -X switch to enable full debug logging.
    [ERROR] 
    [ERROR] For more information about the errors and possible solutions, please read the following articles:
    [ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
    [ERROR] Maven execution term

inated abnormally (exit code 1)
一直build就出错。。。。
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idea 创建maven项目一直失败，什么原因？build一直不行。。

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