maven报错解决

第一次使用maven，下载了一个spring的jpetstore。运行maven就报错。

报错内容如下：

errors Description Resource Path Location Type CoreException: Could not calculate build plan: Plugin org.apache.maven.plugins:maven-compiler-plugin:2.3.2 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-compiler-plugin:jar:2.3.2: ArtifactResolutionException: Failure to transfer org.apache.maven.plugins:maven-compiler-plugin:pom:2.3.2 from http://repo1.maven.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-compiler-plugin:pom:2.3.2 from/to central (http://repo1.maven.org/maven2): Connect times out pom.xml /speech-to-text line 1 Maven Project Build Lifecycle Mapping Problem

解决：

1.创建settings.xml 文件，文件内容如下：

<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">

<proxies>
    <proxy>
      <id>1</id>
      <active>true</active>
      <protocol>http</protocol>      
      <host>*INSERT PROXY HERE*</host>
      <port>80</port>
      <nonProxyHosts>localhost</nonProxyHosts>
    </proxy>    
</proxies>

</settings>

如果没有代理的话，需要设置一下内容：

<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">


</settings>

2.选择 Eclipse: Window --> Preferences --> Installations. 在 "Global settings for embedded installation" 选项中指向刚刚写好的 settings.xml.文件

3.重启eclipse。

参考：http://stackoverflow.com/questions/8138099/creating-a-maven-project