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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：
1 true http *INSERT PROXY HERE* 80 localhost
3.重启eclipse。
参考：http://stackoverflow.com/questions/8138099/creating-a-maven-project