1、首先说一下在windows中安装maven。非常简单。。。
到http://maven.apache.org/download.html中下载maven，截止笔者发文时，maven最新版本为maven 3.0.4。我下载的即为此版本。具体地址为http://www.apache.org/dyn/closer.cgi/maven/binaries/apache-maven-3.0.4-bin.zip（以后可能会有变化，自己去官网慢慢找就是了，不难）。
下载以后解压，我的解压目录为E:\apache-maven-3.0.4，即为M2_HOME
接下来就是我们熟悉的配置环境变量：新建环境变量M2_HOME,并在Path中加入%M2_HOME%\bin。
测试一下是否安装成功了，运行命令 mvn -v。如果出现下图所示，则表明安装成功。
2、当然也可以直接在eclipse中安装m2eclipse插件，具体方法与安装其他插件一样一样的哈。location中输入http://m2eclipse.sonatype.org/sites/m2e。
3、安装完成后，测试一下吧。新建一个maven项目（File>New>Other>Maven>Maven Project）。在弹出的New Maven Project对话框中，使用默认选项（不要选择Create a simple project选项，这样就可以使用Maven Archetype了）。Next，此时m2eclipse会提示我们选择一个archetype。这里我们选择maven-archetype-quickstart，Next，依次输入groupId,artifactId,version,package。如下图所示。
这样就可以运行了。在项目上右击，run as>maven build...>clean install。
居然报错了，错误如下：
SLF4J: Failed to load class "org.slf4j.impl.StaticLoggerBinder". SLF4J: Defaulting to no-operation (NOP) logger implementation SLF4J: See http://www.slf4j.org/codes.html#StaticLoggerBinder for further details. [INFO] Scanning for projects... [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building hello-jsf-with-maven 0.0.1-SNAPSHOT [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-clean-plugin:2.4.1:clean (default-clean) @ hello-jsf-with-maven --- [INFO] Deleting E:\Projects\hello-jsf-with-maven\target [INFO] [INFO] --- maven-resources-plugin:2.5:resources (default-resources) @ hello-jsf-with-maven --- [debug] execute contextualize [INFO] Using 'UTF-8' encoding to copy filtered resources. [INFO] skip non existing resourceDirectory E:\Projects\hello-jsf-with-maven\src\main\resources [INFO] [INFO] --- maven-compiler-plugin:2.3.2:compile (default-compile) @ hello-jsf-with-maven --- [INFO] Compiling 1 source file to E:\Projects\hello-jsf-with-maven\target\classes [INFO] ------------------------------------------------------------- [ERROR] COMPILATION ERROR : [INFO] ------------------------------------------------------------- [ERROR] Unable to locate the Javac Compiler in: C:\Java\jre7\..\lib\tools.jar Please ensure you are using JDK 1.4 or above and not a JRE (the com.sun.tools.javac.Main class is required). In most cases you can change the location of your Java installation by setting the JAVA_HOME environment variable. [INFO] 1 error [INFO] ------------------------------------------------------------- [INFO] ------------------------------------------------------------------------ [INFO] BUILD FAILURE [INFO] ------------------------------------------------------------------------ [INFO] Total time: 0.766s [INFO] Finished at: Mon Jul 23 11:08:55 CST 2012 [INFO] Final Memory: 7M/17M [INFO] ------------------------------------------------------------------------ [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project hello-jsf-with-maven: Compilation failure [ERROR] Unable to locate the Javac Compiler in: [ERROR] C:\Java\jre7\..\lib\tools.jar [ERROR] Please ensure you are using JDK 1.4 or above and [ERROR] not a JRE (the com.sun.tools.javac.Main class is required). [ERROR] In most cases you can change the location of your Java [ERROR] installation by setting the JAVA_HOME environment variable. [ERROR] -> [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/MojoFailureException
仔细看了一下上面的日志文件，初步推断是jre的配置问题。window>Preference>Java>Installed JREs,果然是配置问题。安装jdk时，默认会有两个jre，eclipse中运行的jre一定是jdk中的jre不能是那个独立的jre。例如我的jdk的安装目录（即JAVA_HOME）为：C:\Java\jdk1.7.0_05。与这个目录同级的还有一个jre7目录。eclipse中配置的应为JAVA_HOME中的目录，因为环境变量中就是这么定位的。
好了，改过来就ok了。