1、推送的前提是安装本地Docker
    2、更改docker配置为：

    1. {
    2.   "registry-mirrors": [
    3.     "https://2w5oblrm.mirror.aliyuncs.com",
    4.     "https://hub-mirror.c.163.com/"
    5.   ],
    6.   "insecure-registries": [
    7.     "192.168.252.162:8899"
    8.   ],
    9.   "debug": true,
    10.   "experimental": false
    11. }

    3、更改POM文件

            <!-- 推荐使用Harbor -->
        <docker.registry.url>192.168.252.162:8899</docker.registry.url>
        <docker.registry.host>http://${docker.registry.url}:2375</docker.registry.host>
        <docker.username>admin</docker.username>
        <docker.password>Harbor12345</docker.password>
        <docker.namespace>eman</docker.namespace>
        <docker.plugin.version>1.4.13</docker.plugin.version>

    4、更改Maven setting.xml

        <server> 
    <id>192.168.252.162:8899</id> 
    <username>admin</username> 
    <password>Harbor12345</password> 
    <configuration> 
    <email>wyb@oureman.com</email> 
    </configuration> 
    </server>

    5、把包推送到Harbor私服中

    mvn clean package dockerfile:push