安装环境
windows 7 x86-64
jdk1.6.0_27 32-bit（假定该环境中已经设置了jdk的环境变量）
maven 3.1.1
nexus-2.9.1-02-bundle
1.安装maven3.1.1
1）下载maven
访问maven官方网站http://maven.apache.org/，下载maven包。下载链接为：http://apache.fayea.com/apache-mirror/maven/maven-3/3.1.1/binaries/apache-maven-3.1.1-bin.zip
2）解压下载到的apache-maven-3.1.1-bin.zip到某个目录。（如E:EbApache Software Foundationapache-maven-3.1.1）
3）设置环境变量。
第一，添加用户变量M2_HOME（实际应为M3_HOME，懒得改了，下面都用M2_吧），M2_HOME=E:EbApache Software Foundationapache-maven-3.1.1
第二，添加用户变量M2，M2=%M2_HOME%in
第三，修改用户变量PATH（若没有此变量，则添加一个），PATH=%M2%;%PATH%
4）验证maven是否安装成功。打开命令行，输入mvn -v，显示如下信息即为安装成功。
2.安装nexus
1）下载nexus
访问nexus官方网站http://www.sonatype.org/nexus/，下载nexus-2.9.1-02-bundle.zip。 http://www.sonatype.org/nexus/archived
2）解压至某个目录（如E:Eb
exus-2.9.1-02-bundle）
3）开启jetty服务器。找到E:Eb
exus-2.9.1-02-bundle
exus-2.9.1-02injswwindows-x86-32（由于jdk安装的是32位版本，因此执行此目录下的文件）目录，执行console-nexus.bat批处理文件，等待命令行执行到如下情况：
不要关闭命令行窗口。
4）访问nexus管理页面。
打开浏览器，输入http://localhost:8081/nexus/，点击页面右上方的Log in超链接，输入默认用户名密码admin/admin123，登录nexus管理页面。
3.配置nexus
1）登录nexus管理页面，点击左侧的Repositories，显示相关的仓库信息，各个仓库的含义可自行百度之。
2）修改默认的存储路径。
安装nexus后，本地仓库默认的jar包存储位置是file:/E:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus/storage/central。由于Central仓库占用存储较大，我们可以单独设置其存储位置。
首先，将E:/Eb/nexus-2.9.1-02-bundle/sonatype-work/目录下的所有内容复制到H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/目录下；
第二，选中Central，打开Configuration选项卡，修改Override Local Storage Location项的值为file:/H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus/storage/central，点击页面下方的save按钮。
3）同步索引。
首先，选中Central，点击下方的Configuration选项卡。修改Download Remote Indexes项的值为True。点击页面下方的save按钮。
第二，右键点击Central，弹出菜单中点击Repair Index。Repair Index过程可能较慢，等待一会儿，进度可以从命令行窗口的日志中看到。
（注意以下问题：
关于Apache Snapshots 仓库无法拉取的问题：
nexus默认配置的是如下路径：
http://repository.apache.org/snapshots/
然后更新索引的时候日志中会提示：
jvm 1 | 2013-11-02 19:23:34 INFO [pxpool-1-thread-3] admin org.sonatype.nexus.index.DefaultIndexerManager - Cannot fetch remote index for repository "Apache Snapshots" [id=apache-snapshots] as it does not publish indexes.
正确的地址是如下这个：
https://repository.apache.org/content/repositories/releases/ release版本
https://repository.apache.org/content/repositories/snapshots/ 非稳定版本
请在仓库配置中更新地址即可。--参照连接http://leeon.me/a/use-cubieboard-to-build-maven-repo）
修改完成后的配置如下
4）Apache Snapshots和Codehaus Snapshots两个仓库也按照上述1）2）3）步骤修改，只是Override Local Storage Location项分别为file:/H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus/storage/apache-snapshots和file:/H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus/storage/codehaus-snapshots
注：还有一个更彻底的方式，直接修改E:Eb
exus-2.9.1-02-bundle
exus-2.9.1-02conf
exus.properties中的配置项nexus-work如下：
1 # Nexus section 2 #nexus-work=${bundleBasedir}/../sonatype-work/nexus 3 nexus-work=H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus 4 runtime=${bundleBasedir}/nexus/WEB-INF
4.配置maven使用nexus
1）在maven安装目录中找到maven的全局配置文件。E:EbApache Software Foundationapache-maven-3.1.1conf目录下的settings.xml文件。
2）将settings.xml修改为如下配置：
1 <?xml version="1.0" encoding="UTF-8"?> 2 <settings xmlns="http://maven.apache.org/SETTINGS/1.0.0" 3 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 4 xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 5 http://maven.apache.org/xsd/settings-1.0.0.xsd"> 6 <localRepository>E:/.m2/repository</localRepository> 7 <pluginGroups></pluginGroups> 8 <!-- proxies | This is a list of proxies which can be used on this 9 machine to connect to the network. | Unless otherwise specified 10 (by system property or command-line switch), the first proxy | specification in this list marked as active will be used. |--> 11 <proxies> 12 <!-- proxy | Specification for one proxy, to be used in connecting to the network. | <proxy> <id>optional</id> 13 <active>true</active> 14 <protocol>http</protocol> 15 <username>proxyuser</username> 16 <password>proxypass</password> 17 <host>proxy.host.net</host> 18 <port>80</port> 19 <nonProxyHosts>local.net|some.host.com</nonProxyHosts> 20 </proxy> --> 21 </proxies> 22 <!-- servers | This is a list of authentication profiles, keyed by the 23 server-id used within the system. | Authentication profiles can be 24 used whenever maven must make a connection to a remote 25 server. |--> 26 <servers></servers> 27 <!-- mirrors | This is a list of mirrors to be used in downloading 28 artifacts from remote repositories. | | It works like this: a POM 29 may declare a repository to use in resolving certain artifacts. | 30 However, this repository may have problems with heavy traffic at 31 times, so people have mirrored | it to several places. | | That 32 repository definition will have a unique id, so we can create a 33 mirror reference for that | repository, to be used as an alternate 34 download site. The mirror site will be the preferred | server for 35 that repository. |--> 36 <mirrors> <mirror> 37 <!--This is used to direct the public snapshots repo in the profile 38 below over to a different nexus group --> 39 <id>nexus-public-snapshots</id> 40 <mirrorOf>public-snapshots</mirrorOf> 41 <url>http://localhost:8081/nexus/content/groups/public-snapshots</url> 42 </mirror> 43 <mirror> 44 <!--This sends everything else to /public --> 45 <id>nexus</id> 46 <mirrorOf>*</mirrorOf> 47 <url>http://localhost:8081/nexus/content/groups/public</url> 48 </mirror> 49 </mirrors> 50 <profiles> 51 <profile> 52 <id>development</id> 53 <repositories> 54 <repository> 55 <id>central</id> 56 <url>http://central</url> 57 <releases> 58 <enabled>true</enabled> 59 </releases> 60 <snapshots> 61 <enabled>true</enabled> 62 </snapshots> 63 </repository> 64 </repositories> 65 <pluginRepositories> 66 <pluginRepository> 67 <id>central</id> 68 <url>http://central</url> 69 <releases> 70 <enabled>true</enabled> 71 </releases> 72 <snapshots> 73 <enabled>true</enabled> 74 </snapshots> 75 </pluginRepository> 76 </pluginRepositories> 77 </profile> 78 <profile> 79 <!--this profile will allow snapshots to be searched when activated--> 80 <id>public-snapshots</id> 81 <repositories> 82 <repository> 83 <id>public-snapshots</id> 84 <url>http://public-snapshots</url> 85 <releases> 86 <enabled>false</enabled> 87 </releases> 88 <snapshots> 89 <enabled>true</enabled> 90 </snapshots> </repository> </repositories> 91 <pluginRepositories> 92 <pluginRepository> 93 <id>public-snapshots</id> 94 <url>http://public-snapshots</url> 95 <releases> 96 <enabled>false</enabled> 97 </releases> 98 <snapshots> 99 <enabled>true</enabled> 100 </snapshots> 101 </pluginRepository> 102 </pluginRepositories> 103 </profile> 104 </profiles> 105 <!-- activeProfiles | List of profiles that are active for all builds. | 106 <activeProfiles> 107 <activeProfile>alwaysActiveProfile</activeProfile> 108 <activeProfile>anotherAlwaysActiveProfile</activeProfile> 109 </activeProfiles> --> 110 <activeProfiles> 111 <activeProfile>development</activeProfile> 112 </activeProfiles> 113 </settings>
验证是否设置成功.
打开命令行，执行如下语句：
mvn help:system
之后，查看E:/.m2/repository（<localRepository>E:/.m2/repository</localRepository>将maven的默认配置改为该目录，默认配置为C:Users<用户名>.m2
epository）和file:/H:/Eb/nexus-2.9.1-02-bundle/sonatype-work/nexus/storage/central两个目录下都有了新下载到的jar包。则表示配置成功。
5.nexus对archetype的支持
参考：http://seanzhou.iteye.com/blog/1420634