在Mac平台安裝Maven3
在Mac平台安裝Maven如果有安裝XCode, XCode会自动帮你安裝Maven, 安裝在/usr/share/java/
安裝3.0.3
到http://maven.apache.org/download.html下載maven 3.0.3
将apache-maven-3.0.3-bin.tar.gz解压缩到/usr/share/java
移除/usr/share下的softlink maven
ln -s /usr/share/java/apache-maven-3.0.3 /usr/share/maven
修改~/.profile 设定M3_HOME=/usr/share/java/apache-maven-3.0.3
注意事项
不能同时设M2_HOME与M3_HOME两个环境变量, 不然执行maven会出现以下的exception
Exception in thread "main" java.lang.NoClassDefFoundError:
org/codehaus/plexus/classworlds/launcher/LauncherCaused by:
java.lang.ClassNotFoundException: org.codehaus.plexus.classworlds.launcher.Launcher at
java.net.URLClassLoader$1.run(URLClassLoader.java:202) at
java.security.AccessController.doPrivileged(Native Method) at
java.net.URLClassLoader.findClass(URLClassLoader.java:190) at
java.lang.ClassLoader.loadClass(ClassLoader.java:307) at
sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at
java.lang.ClassLoader.loadClass(ClassLoader.java:248)
参考：http://cb.esast.com/cb/wiki/22945
Installing Maven 3 on OS X
1. Install Mac Ports
2. Install Maven 3
Open a terminal and type the following:
sudo port install maven3 maven_select
sudo maven_select maven3
------------------------------------------------------------------------
使用MAVEN构造springside-4.0失败、异常
信息如下：
xxxx@localhost springside-4.0.0.RC3$ mvn install
Scanning for projects...
------------------------------------------------------------------------
Reactor Build Order:
Springside :: Project
Springside :: Module :: Core
Springside :: Module :: Extension
Springside :: Example :: Mini-Service
Springside :: Example :: Mini-Web
Springside :: Example :: Showcase
------------------------------------------------------------------------
Building Springside :: Project 4.0.0.RC3
------------------------------------------------------------------------
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.3.1/maven-install-plugin-2.3.1.pom
------------------------------------------------------------------------
Reactor Summary:
Springside :: Project ............................. FAILURE
Springside :: Module :: Core ...................... SKIPPED
Springside :: Module :: Extension ................. SKIPPED
Springside :: Example :: Mini-Service ............. SKIPPED
Springside :: Example :: Mini-Web ................. SKIPPED
Springside :: Example :: Showcase ................. SKIPPED
------------------------------------------------------------------------
BUILD FAILURE
------------------------------------------------------------------------
Total time: 1:16.465s
Finished at: Sun Jul 08 16:31:26 CST 2012
Final Memory: 3M/81M
------------------------------------------------------------------------
Plugin org.apache.maven.plugins:maven-install-plugin:2.3.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-install-plugin:jar:2.3.1: Could not transfer artifact org.apache.maven.plugins:maven-install-plugin:pom:2.3.1 from/to central (http://repo1.maven.org/maven2): Error transferring file: Operation timed out ->
To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.
For more information about the errors and possible solutions, please read the following articles:
http://cwiki.apache.org/confluence/display/MAVEN/PluginResolutionException
原因：
发现无法访问中央库http://repo1.maven.org/maven2/ 。
解决：过了两天就能访问了。
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