Nexus centos 安装

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1、安装nexus
2、启动nexus
- 2.1启动服务器
- 2.2以后台进程启动：
- 2.3web访问
3.搭建私服
- 3.1 界面元素介绍
- 3.2 仓库集合的界面
- 3.3 通过网页方式将jar包上传到nexus

搭建nexus服务的意义

作为内网的统一代理，团队合作开发时不用每人都去外网下载一次；

解决部分变态公司内网管制无法访问外网的问题，选一台有外网权限的机器搭建服务器，其余人直接内网访问此服务；

团队合作开发时解决maven项目依赖问题；

大家nexus之后使用情形如下图

1、安装nexus

在安装之前兄弟们要搞清楚是环境的jdk版本，兄弟我2018/8/20直接下了最新的版本,结果悲剧，配置到一半，报错，如下：

#高版本要求jdk8以上 [root@227 nexus]# ./bin/nexus console No suitable Java Virtual Machine could be found on your system. The version of the JVM must be at least 1.8 and at most 1.8. Please define INSTALL4J_JAVA_HOME to point to a suitable JVM.

退而求其次nexus-2.11.4-01-bundle.tar.gz

云下载

wget http://sonatype-download.global.ssl.fastly.net/nexus/oss/nexus-2.11.4-01-bundle.tar.gz

wget http://mirrors.cnnic.cn/apache/maven/maven-3/3.0.5/binaries/apache-maven-3.0.5-bin.tar.gz

[root@227 ~]# wget http://sonatype-download.global.ssl.fastly.net/nexus/oss/nexus-2.11.4-01-bundle.tar.gz --2018-08-20 15:55:29-- http://sonatype-download.global.ssl.fastly.net/nexus/oss/nexus-2.11.4-01-bundle.tar.gz Resolving sonatype-download.global.ssl.fastly.net... 151.101.73.194 Connecting to sonatype-download.global.ssl.fastly.net|151.101.73.194|:80... connected. HTTP request sent, awaiting response... 200 OK Length: 70938260 (68M) [application/x-gzip] Saving to: “nexus-2.11.4-01-bundle.tar.gz”100%[============================================================================>] 70,938,260 121K/s in 9m 14s Last-modified header invalid -- time-stamp ignored. 2018-08-20 16:04:44 (125 KB/s) - “nexus-2.11.4-01-bundle.tar.gz” saved [70938260/70938260]

解压到/usr/local

[root@227 ~]# ll total 69396 -rw-------. 1 root root 2362 Feb 28 18:39 anaconda-ks.cfg drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Desktop drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Documents drwxr-xr-x. 2 root root 4096 Aug 20 15:41 Downloads -rw-r--r--. 1 root root 68509 Feb 28 18:39 install.log -rw-r--r--. 1 root root 11969 Feb 28 18:37 install.log.syslog drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Music -rw-r--r--. 1 root root 70938260 Aug 20 16:04 nexus-2.11.4-01-bundle.tar.gz drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Pictures drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Public drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Templates drwxr-xr-x. 2 root root 4096 Feb 28 10:46 Videos [root@227 ~]# tar -zxvf nexus-2.11.4-01-bundle.tar.gz -C /usr/local/

注意：

一定要解压到这个目录下，具体原因我也不知道，文档里是这么做的，我们也没必要自己找麻烦。

建立软链接
查看/usr/local目录，结果如下：

[root@227 ~]# cd /usr/local/ [root@227 local]# ln -s nexus-2.11.4-01 nexus [root@227 local]# ll total 92 drwxr-xr-x. 2 root root 4096 Sep 23 2011 bin drwxr-xr-x. 2 root root 4096 Sep 23 2011 etc drwxr-xr-x. 2 root root 4096 Sep 23 2011 games drwxr-xr-x. 2 root root 4096 Sep 23 2011 include drwxr-xr-x. 2 root root 4096 Apr 11 15:43 key drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib drwxr-xr-x. 2 root root 4096 Sep 23 2011 lib64 drwxr-xr-x. 2 root root 4096 Sep 23 2011 libexec drwxr-xr-x. 2 root root 32768 Aug 20 00:10 logs lrwxrwxrwx. 1 root root 15 Aug 20 16:09 nexus -> nexus-2.11.4-01 drwxr-xr-x. 8 root root 4096 Jul 10 2015 nexus-2.11.4-01 drwxr-xr-x. 11 root root 4096 May 21 17:15 nginx drwxr-xr-x. 2 root root 4096 Apr 4 16:30 RSA-KeyPair drwxr-xr-x. 2 root root 4096 Sep 23 2011 sbin drwxr-xr-x. 5 root root 4096 Feb 28 18:29 share drwxr-xr-x. 4 root root 4096 Jul 10 2015 sonatype-work drwxr-xr-x. 2 root root 4096 Sep 23 2011 src

设置环境变量（按官网文档的说法是可选，不过还是配上吧）

[root@227 local]# vim /etc/profileunset i unset -f pathmunge JAVA_HOME=/usr/jdk1.7.0_79 JRE_HOME=$JAVA_HOME/jre CLASSPATH=.:$JAVA_HOME/lib/tools.jar:$JAVA_HOME/lib/dt.jar PATH=$JAVA_HOME/bin:$PATH export JAVA_HOME JRE_HOME CLASSPATH PATH export NEXUS_HOME=/usr/local/nexus-2.11.4-01[root@227 local]#

[root@227 local]# source /etc/profile [root@227 local]# echo $NEXUS_HOME /usr/local/nexus-2.11.4-01

2、启动nexus

2.1启动服务器

前台启动：好了，我们来前台启动一下。咦，没起来，提示：

[root@227 local]# cd /usr/local/nexus [root@227 nexus]# ./bin/nexus console **************************************** WARNING - NOT RECOMMENDED TO RUN AS ROOT **************************************** If you insist running as root, then set the environment variable RUN_AS_USER=root before running this script. [root@227 nexus]# vim /etc/profile #结尾加上 export RUN_AS_USER=root [root@227 nexus]# source /etc/profile

[root@227 nexus]# ./bin/nexus console #运行结果如下 wrapper | Launching a JVM... jvm 1 | Wrapper (Version 3.2.3) http://wrapper.tanukisoftware.org jvm 1 | Copyright 1999-2006 Tanuki Software, Inc. All Rights Reserved. jvm 1 | jvm 1 | 2018-08-20 16:15:57,678+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.jsw.JswLauncher - Starting with arguments: [./conf/jetty.xml, ./conf/jetty-requestlog.xml] jvm 1 | 2018-08-20 16:15:57,682+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.jsw.JswLauncher - JVM ID: 1, JVM PID: 16148, Wrapper PID: 16146, User: root jvm 1 | 2018-08-20 16:15:57,699+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - Properties: jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - application-conf='/usr/local/nexus-2.11.4-01/../sonatype-work/nexus/conf' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - application-host='0.0.0.0' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - application-port='8081' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - bundleBasedir='/usr/local/nexus-2.11.4-01' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - java.awt.headless='true' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - networkaddress.cache.ttl='3600' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - nexus-app='/usr/local/nexus-2.11.4-01/nexus/WEB-INF' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - nexus-webapp='/usr/local/nexus-2.11.4-01/nexus' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - nexus-webapp-context-path='/nexus' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - nexus-work='/usr/local/sonatype-work/nexus' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - org.eclipse.ecf.provider.filetransfer.retrieve.readTimeout='30000' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - runtime='/usr/local/nexus-2.11.4-01/nexus/WEB-INF' jvm 1 | 2018-08-20 16:15:57,700+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.ConfigurationBuilder - security-xml-file='/usr/local/nexus-2.11.4-01/../sonatype-work/nexus/conf/security.xml' jvm 1 | 2018-08-20 16:15:57,701+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.Launcher - Java: 1.7.0_79, Java HotSpot(TM) 64-Bit Server VM, Oracle Corporation, 24.79-b02 jvm 1 | 2018-08-20 16:15:57,701+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.Launcher - OS: Linux, 2.6.32-431.el6.x86_64, amd64 jvm 1 | 2018-08-20 16:15:57,701+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.Launcher - User: root, en, /root jvm 1 | 2018-08-20 16:15:57,701+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.Launcher - CWD: /usr/local/nexus-2.11.4-01 jvm 1 | 2018-08-20 16:15:57,711+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.Launcher - TMP: /usr/local/nexus-2.11.4-01/tmp jvm 1 | 2018-08-20 16:15:57,713+0800 INFO [WrapperListener_start_runner] *SYSTEM org.sonatype.nexus.bootstrap.jetty.JettyServer - Starting

2.2以后台进程启动：

[root@227 ~]# cd /usr/local/nexus ######################后台启动命令################################[root@227 nexus]# ./bin/nexus start **************************************** WARNING - NOT RECOMMENDED TO RUN AS ROOT **************************************** Starting Nexus OSS... Started Nexus OSS.[root@227 nexus]# ./bin/nexus stop **************************************** WARNING - NOT RECOMMENDED TO RUN AS ROOT **************************************** Stopping Nexus OSS... Stopped Nexus OSS.######################查看日志################################ [root@227 nexus]# tail -f logs/wrapper.log jvm 1 | 2018-08-21 09:10:12,782+0800 INFO [RepositoryStatusChecker-central] *SYSTEM org.sonatype.nexus.proxy.maven.maven2.M2Repository-central - Next attempt to auto-unblock the "Central" (id=central) repository by checking its remote peer health will occur in 40 seconds. jvm 1 | 2018-08-21 09:10:18,206+0800 INFO [qtp1235955620-81] *SYSTEM org.apache.shiro.nexus5727.FixedDefaultWebSessionManager - Global session timeout: 1800000 ms jvm 1 | 2018-08-21 09:10:18,207+0800 INFO [qtp1235955620-81] *SYSTEM org.apache.shiro.session.mgt.AbstractValidatingSessionManager - Enabling session validation scheduler... jvm 1 | 2018-08-21 09:10:18,208+0800 INFO [qtp1235955620-81] *SYSTEM org.apache.shiro.cache.ehcache.EhCacheManager - Using existing EHCache named [shiro-activeSessionCache] jvm 1 | 2018-08-21 09:10:18,264+0800 INFO [qtp1235955620-81] admin org.sonatype.nexus.velocity.VelocityEngineProvider - Creating Nexus VelocityEngine jvm 1 | 2018-08-21 09:10:18,869+0800 INFO [qtp1235955620-81] admin /nexus - nexus: [Noelios Restlet Engine] - Attaching application: org.sonatype.nexus.rest.NexusApplication@228da80f to URI: /nexus/service/local jvm 1 | 2018-08-21 09:10:18,894+0800 INFO [qtp1235955620-87] admin org.sonatype.security.model.source.FileModelConfigurationSource - Loading security configuration from: /usr/local/nexus-2.11.4-01/../sonatype-work/nexus/conf/security.xml jvm 1 | 2018-08-21 09:10:19,243+0800 INFO [proxy-3-thread-1] admin org.sonatype.nexus.proxy.storage.remote.httpclient.HttpClientRemoteStorage - Initializing remote transport for proxy repository "Apache Snapshots" [id=apache-snapshots]... jvm 1 | 2018-08-21 09:10:52,665+0800 INFO [RepositoryStatusChecker-codehaus-snapshots] *SYSTEM org.sonatype.nexus.proxy.maven.maven2.M2Repository-codehaus-snapshots - Next attempt to auto-unblock the "Codehaus Snapshots" (id=codehaus-snapshots) repository by checking its remote peer health will occur in 1 minute 20 seconds. jvm 1 | 2018-08-21 09:10:52,783+0800 INFO [RepositoryStatusChecker-central] *SYSTEM org.sonatype.nexus.proxy.maven.maven2.M2Repository-central - Next attempt to auto-unblock the "Central" (id=central) repository by checking its remote peer health will occur in 1 minute 20 seconds.

2.3web访问

好了，我们在浏览器上看看能不能访问吧，路径：

http://192.168.1.227（换成你的ip）:8081/nexus.

结果如图所示：

点击右上角登录：

默认用户名为admin，密码admin123

3.搭建私服

3.1 界面元素介绍

登录后，点击左侧Repositories，界面如上图所示。

右侧的列表中，可以看到nexus预设的几个仓库。

第一个public Repositories，类型为group，这个简单理解为仓库的集合，下面的仓库就是可以加入到这个集合的元素。

对外可以只提供一个单独的url，如上图显示为：http://192.168.1.227:8081/nexus/content/groups/public/

大部分的终端用户，只需要配置上面这一个单独的聚合后的url，而不用单独配置多个仓库。用户也不需要知道某个jar包具体来源于maven 中央仓库，或者是Apache Snapshots，或者是我们自己添加的其他仓库。

这样的好处在于：如果我们要新增某个仓库（如开源中国、阿里云），客户端不需要做任何更改，只需要在nexus上将要新增的仓库加入到对外提供服务的仓库 group中就可以。

第二个3rd party，与倒数第一个和第二个仓库，Releases和Snapshots一样，类型为hosted，意思是由nexus本机管理的仓库。该仓库用于商业化的，第三方提供的非开源的依赖仓库，如oracle jdbc driver。

倒数第二个Releases，用于存放开发团队内部用的正式版的依赖。

倒数第一个Snapshots，用于存放开发团队内部日常构建的频率更新较快的依赖包。

Apache Snapshots和Central类型都是proxy，意思是远端仓库的代理。前者包含了Apache Software Foundation 发布的快照版本（这么翻译不知道对不对），后者为Maven中央仓库，我们平时maven默认就是连接该仓库。

Central M1 Shadow类型为virtual，按官方文档的意思是，只是已有仓库的一个不同呈现方式的映射。有需要可以参考官方手册6.2.3节。

3.2 仓库集合的界面

点击Configuration，可以看到当前添加到该集合的仓库列表及顺序（优先级高的在上面，可用鼠标拖拽），当我们新增了仓库，将会出现在右侧的available Repository，添加到左边即可。

如果有哪个仓库不想加入到该集合，也可以拖拽到右边来。

3.3使用本地maven客户端测试nexus是否成功部署

首先复制仓库集合的repository url，客户端配置需要用到。

配置maven客户端：

打开settings.xml，按照如下步骤修改：

<mirrors> <mirror>  <id>nexus</id> <mirrorOf>*</mirrorOf> <url>http://192.168.1.227:8081/nexus/content/groups/public</url> </mirror> </mirrors>

<profiles> <profile> <id>nexus</id>   <repositories> <repository> <id>central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </repository> </repositories> <pluginRepositories> <pluginRepository> <id>central</id> <url>http://central</url> <releases><enabled>true</enabled></releases> <snapshots><enabled>true</enabled></snapshots> </pluginRepository> </pluginRepositories> </profile> </profiles> <activeProfiles> <activeProfile>nexus</activeProfile> </activeProfiles>