下載sonatype nexus repository manager 3.x oss版
下載地址：http://www.sonatype.com/download-oss-sonatype

安裝
windows版
進入bin目錄下執行: nexus.exe/install     此步驟會安裝nexus服務，可以到系統服務（cmd → services.msc）中檢視nexus服務是否存在

拿管理員許可權開啟cmd，再次執行

再執行nexus.exe/run啟動

linux版
解壓縮tar xvzf nexus-3.14.0-04-unix.tar.gz
進入bin目錄  執行./nexus run

出現上圖說明啟動成功

啟動後登入地址：http://localhost:8081
預設admin／admin123

讓所有的maven專案使用私庫
配置maven的settings.xml

  <servers>
    <server>
      <id>maven-releases</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
    <server
 
>
      <id>maven-snapshots</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
  </servers>
  <mirrors>
    <mirror>
      <id>maven-public</id>
      <name>maven-public</name>
      <
 
url>http://localhost:8081/repository/maven-public/</url>
      <mirrorOf>*</mirrorOf>
    </mirror>
  </mirrors>
  <profiles>
    <profile>
        <id>nexus</id>
      <repositories>
        <repository>
          <id>maven-central</id>
          <url>http://localhost:8081/repository/maven-central/</url>
          <releases><enabled>true</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </repository>
      </repositories>
      <pluginRepositories>
        <pluginRepository>
          <id>maven-central</id>
          <url>http://localhost:8081/repository/maven-central/</url>
          <releases><enabled>true</enabled></releases>
          <snapshots><enabled>true</enabled></snapshots>
        </pluginRepository>
      </pluginRepositories>
    </profile>
  </profiles>
  <activeProfiles>
    <activeProfile>nexus</activeProfile>
  </activeProfiles>

對於單個專案配置使用私庫
配置maven的settings.xml

  <servers>
    <server>
      <id>maven-releases</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
    <server>
      <id>maven-snapshots</id>
      <username>admin</username>
      <password>admin123</password>
    </server>
  </servers>
  <mirrors>
      <mirror>
      <id>maven-public</id>
      <name>maven-public</name>
      <url>http://localhost:8081/repository/maven-public/</url>
      <mirrorOf>*</mirrorOf>
    </mirror>
  </mirrors>

配置專案的pom.xml

  <distributionManagement>
      <snapshotRepository>
        <id>maven-snapshots</id>
        <url>http://localhost:8081/repository/maven-snapshots/</url>
      </snapshotRepository>
      <repository>
        <id>maven-releases</id>
        <url>http://localhost:8081/repository/maven-releases/</url>
      </repository>
  </distributionManagement>

  <repositories>
       <repository>
         <id>maven-public</id>
         <url>http://localhost:8081/repository/maven-public/</url>
       </repository>
  </repositories>

將工程導為jar包上傳到私庫
對工程執行deploy -e命令

遇到問題

網上說要清理磁碟空間

我當時在下載，佔用很大記憶體，後來刪掉了，這個問題就沒了

參考：
https://blog.csdn.net/liumiaocn/article/details/61931847
https://blog.csdn.net/cuncaojin/article/details/81270897
https://help.sonatype.com/repomanager3/installation/installation-methods