maven私服搭建
搭建私服的工具选择
Apache基金会的archiva
http://archiva.apache.org/
JFrog的Artifactory
https://jfrog.com/artifactory/
Sonatype的Nexus
https://my.sonatype.com/
这些都是开源的私服软件，都可以自由使用。用的最多的是第三种Nexus，本文我们主要以这个来讲解，其他2种有兴趣的朋友可以去研究一下。
Windows10中安装Nexus私服
nexus是java开发的，所以运行的时候需要有java环境的支持。
nexus下载和版本
https://www.sonatype.com/nexus-repository-oss
nexus-3.20.1-01-win64
C:\Users\jie>java -version
java version "1.8.0_201"
Java(TM) SE Runtime Environment (build 1.8.0_201-b09)
Java HotSpot(TM) 64-Bit Server VM (build 25.201-b09, mixed mode)nexus启动
nexus.exe /run
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus.exe /run
2020-01-23 20:52:01,237+0800 INFO [FelixStartLevel] *SYSTEM org.sonatype.nexus.pax.logging.NexusLogActivator - start
2020-01-23 20:52:03,362+0800 INFO [FelixStartLevel] *SYSTEM org.sonatype.nexus.features.internal.FeaturesWrapper - Fast FeaturesService starting
2020-01-23 20:56:54,923+0800 INFO [jetty-main-1] *SYSTEM org.sonatype.nexus.bootstrap.jetty.JettyServer -
-------------------------------------------------
Started Sonatype Nexus OSS 3.20.1-01
-------------------------------------------------浏览器访问
http://localhost:8081/
其他版本可能需要输入：http://localhost:8081/nexus
登录
需要修改密码
Your admin user password is located in
D:\chengxu\nexus-3.20.1-01-win64\sonatype-work\nexus3\admin.password on the server.修改启动端口
默认端口是8081，如果和本机有冲突，可以在下面的文件中修改：
${dir}\etc\nexus-default.propertiesnexus安装服务
必须以管理员身份启动命令行，安装和启动服务。start是安装好服务后启动服务的，而run是不需要安装服务直接运行的。
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /install
Installed service 'nexus'.
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /start
Starting service 'nexus'.
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /status
Running.
Auto-start.
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /status
Running.
Auto-start.
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus --help
Usage: nexus.exe /install | /uninstall | /stop | /start | /status | /run | /run-redirectD:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /start
Could not start service. Error code: 1060
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus /install
Could not open SCManager.nexus仓库类型
上图中是nexus安装好默认自带的仓库列表，主要有3种类型：
代理仓库
宿主仓库
仓库组
下载组件
- settings.xml文件中设置一个server
- pom.xml中设置仓库，仓库的id和server的id是相同的。
maven_mozq
admin
admin
com.alibaba
druid
1.1.18
maven_mozq
http://localhost:8081/repository/maven-public/
D:\00\01>mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.mozq.dubbo:demo-01-provider >-------------------
[INFO] Building demo-01-provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from maven_mozq: http://localhost:8081/repository/maven-public/com/alibaba/druid/1.1.18/druid-1.1.18.jar
Downloading from alimaven: http://maven.aliyun.com/nexus/content/groups/public/com/alibaba/druid/1.1.18/druid-1.1.18.jar
Downloaded from alimaven: http://maven.aliyun.com/nexus/content/groups/public/com/alibaba/druid/1.1.18/druid-1.1.18.jar (2.8 MB at 645 kB/s)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ demo-01-provider ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory D:\00\01\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ demo-01-provider ---
[INFO] No sources to compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 35.810 s
[INFO] Finished at: 2020-01-23T22:41:29+08:00
[INFO] ------------------------------------------------------------------------D:\00\01>mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.mozq.dubbo:demo-01-provider >-------------------
[INFO] Building demo-01-provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from maven_mozq: http://localhost:8081/repository/maven-public/com/alibaba/druid/1.1.18/druid-1.1.18.jar
Downloading from central: https://repo.maven.apache.org/maven2/com/alibaba/druid/1.1.18/druid-1.1.18.jar
Progress (1): 0.1/2.8 MBD:\00\01>mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.mozq.dubbo:demo-01-provider >-------------------
[INFO] Building demo-01-provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from maven_mozq: http://localhost:8081/repository/maven-public/com/alibaba/druid/1.1.18/druid-1.1.18.jar
Downloaded from maven_mozq: http://localhost:8081/repository/maven-public/com/alibaba/druid/1.1.18/druid-1.1.18.jar (2.8 MB at 103 kB/s)
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ demo-01-provider ---
[WARNING] Using platform encoding (GBK actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] skip non existing resourceDirectory D:\00\01\src\main\resources
[INFO]
[INFO] --- maven-compiler-plugin:3.1:compile (default-compile) @ demo-01-provider ---
[INFO] No sources to compile
[INFO] ------------------------------------------------------------------------
[INFO] BUILD SUCCESS
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 28.263 s
[INFO] Finished at: 2020-01-23T22:57:20+08:00
[INFO] ------------------------------------------------------------------------上传组件
- pom.xml中设置发布的快照仓库和稳定仓库。
- settings.xml中设置快照和稳定的server。server的id和仓库的id保持相同。
如果需要上传第3方的组件，则直接使用nexus界面进行上传操作。
4.0.0
com.mozq.common
date
1.0
nexus-releases
http://localhost:8081/repository/maven-releases/
nexus-snapshots
http://localhost:8081/repository/maven-snapshots/
nexus-releases
admin
admin
nexus-snapshots
admin
admin
bugs
不能启动nexus
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus.exe
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus.exe /
D:\chengxu\nexus-3.20.1-01-win64\nexus-3.20.1-01\bin>nexus.exe /start
Could not start service. Error code: 1060
方案：
nexus.exe /run浏览器访问报404
D:\00\01>mvn compile
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------< com.mozq.dubbo:demo-01-provider >-------------------
[INFO] Building demo-01-provider 1.0-SNAPSHOT
[INFO] --------------------------------[ jar ]---------------------------------
Downloading from maven_mozq: http://localhost:8081/repository/maven-public/com/alibaba/druid/1.1.18/druid-1.1.18.pom
Downloading from alimaven: http://maven.aliyun.com/nexus/content/groups/public/com/alibaba/druid/1.1.18/druid-1.1.18.pom
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 13.567 s
[INFO] Finished at: 2020-01-23T22:25:44+08:00
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal on project demo-01-provider: Could not resolve dependencies for project com.mozq.dubbo:demo-01-provider:jar:1.0-SNAPSHOT: Failed to collect dependencies at com.alibaba:druid:jar:1.1.18: Failed to read artifact descriptor for com.alibaba:druid:jar:1.1.18: Could not transfer artifact com.alibaba:druid:pom:1.1.18 from/to alimaven (http://maven.aliyun.com/nexus/content/groups/public/): maven.aliyun.com: Unknown host maven.aliyun.com -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionExceptionready to connect和manually blocked
需要在仓库中将Block相关的选项去除勾选。
1 Block outbound connections on the repository
2 Auto-block outbound connections on the repository if remote peer is detected as unreachable/unresponsive
等待连接状态不用管，使用的请求下载jar，就会自动变为remote available