1.下载nexus

wget https://sonatype-download.global.ssl.fastly.net/nexus/oss/nexus-2.11.2-03-bundle.tar.gz

2.解压，会出现两个目录，nexus-2.11.2-03是服务  sonatype-work是私有库目录

mkdir nexus
tar -zxvf nexus-2.11.2-03-bundle.tar.gz -C ./nexus

3.修改配置，在nexus-2.11.2-03/bin目录下修改nexus文件

NEXUS_HOME=“安装目录”
RUN_AS_USER=xxx

4.修改端口，nexus-2.11.2-03/conf修改nexus.properties文件

application-port=XXX

5.启动

./bin/nexus start
Starting Nexus OSS...
Started Nexus OSS.

6.修改密码

admin：该用户拥有Nexus的全部权限，默认密码为admin123。
deployment：该用户能够访问Nexus，浏览仓库内容、搜索、上传部署构件，但是不能对Nexus进行任何配置，默认密码为deployment123。
anonymous：该用户对应了所有未登录的匿名用户，它们可以浏览仓库并进行搜索。

7.上传Jar包

参考：上传jar包到nexus私服

登录之后可以看到如下仓库

<1>如果上传的是第三方的jar包

在图中填入相应的jar包的信息就可以了

同时在maven的setting.xml文件中配置

<servers>
    <server>    
        <id>nexus-releases</id>    
        <username>admin</username>    
        <password>xxxx</password>    
    </server>    
    <server>    
        <id>nexus-snapshots</id>    
        <username>admin</username>    
        <password>xxxx</password>    
    </server> 
  </servers>

 以及

<mirror>
    <id>mynexus</id>
    <mirrorOf>central</mirrorOf>
    <name>My Nexus</name>
    <url>http://XXX/nexus/content/repositories/thirdparty/</url>
</mirror>

 <2>上传snapshot包

在工程的pom文件中配置

<distributionManagement>
        <repository>
            <id>nexus-releases</id>
            <name>Nexus Release Repository</name>
            <url>http://XXX/nexus/content/repositories/releases/</url>
        </repository>
        <snapshotRepository>
            <id>nexus-snapshots</id>
            <name>Nexus Snapshot Repository</name>
            <url>http://XXX/nexus/content/repositories/snapshots/</url>
        </snapshotRepository>
    </distributionManagement>

 同时在maven的setting.xml文件中配置

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

    <activeProfiles>    
        <activeProfile>nexus</activeProfile>    
    </activeProfiles>

 然后在项目下运行，就会生成snapshot包

mvn deploy