Maven自动化部署

天蓝色 发表于 2023年10月21日 11:41  398次阅读  举报

Maven 项目的部署通常包括以下步骤：

  1. 将项目代码提交到 SVN 或 Git 等版本控制系统中，并进行标记。
  2. 从 SVN 或 Git 上下载完整的项目代码。
  3. 构建应用。
  4. 将构建输出的 WAR 或 JAR 文件存放在指定的公共网络位置中。
  5. 从指定网络中获取文件，并部署到生产环境上。
  6. 更新项目文档以及版本号。

以上这些工作通常由多个不同的团队协作完成，例如，项目研发人员负责项目代码的提交，项目管理员负责项目的构建工作，运维人员负责将构建好的应用文件部署到生产环境上等等。任何一个环节出现问题，都由可能导致 bug 甚至生产事故的发生，例如，新版本构建完成后，没有发布到指定的网络位置中，导致运维人员再次将旧版本构件部署到生产环境中。

自动化部署的实现方式

为了避免以上问题的发生，我们通常采用如下的架构来管理项目：

  • 版本控制工具（本节以 Git 为例）：管理项目源代码
  • Maven：负责编译和发布项目
  • 远程仓库管理工具（本节以 Nexus 为例）：管理构建生成的二进制文件

Maven 提供了一个名为 maven-release-plugin 的插件，它可以帮助我们实现 Maven 项目的自动化部署。

maven-release-plugin 提供了很多命令，其中最常用的是以下 4 个：

命令执行的操作
mvn release:clean如果上次发布过程不成功，则使用该命令清理工作空间。
mvn release:rollback若上一次发布过程不成功，回滚对代码和配置所做的更改。
mvn release:prepare检查是否存在任何未提交的本地更改。检查是否存在 SNAPSHOT 版本的依赖项。修改 POM 中的配置，将应用程序的版本从快照版本（SNAPSHOT）修改为正式版本（RLEASE），例如从从 1.0-SNAPSHOT 到 1.0。针对修改后的 POM 进行测试，确保一切正常。提交修改后的 POM。将正式版本的代码提交到 Git，并进行标记。修改 POM 中的配置，将正式版本升级为更高的快照版本（例如从 1.0 升级到 1.1-SNAPSHOT），以便以后继续使用快照版本进行开发。将修改后的 POM 提交到 Git。
mvn release:perform从 Git 中检出上面标记的正式版代码，并执行命令 mvn deploy ，将正式版本的构件部署到 Nexus 中。

maven-release-plugin 插件的使用

使用 maven-release-plugin 插件实现项目的自动化部署需要以下步骤。

1. 执行以下 mvn 命令，创建一个名为 mavenAutoDeployDemo 的 Maven 项目，请参考 Maven创建项目。

  • ​mvn archetype:generate -DgroupId=net.jhelp.www -DartifactId=mavenAutoDeployDemo -DarchetypeArtifactId=maven-archetype-quickstart -DinteractiveMode=false

2. 将 mavenAutoDeployDemo 上传到 Github 上，由 Git 管理该项目的代码，操作步骤请参考 Git 文档。

3. 修改该项目的 POM 文件，增加 Git 以及 Nexus 的相关配置，如下。

  1. <?xml version="1.0" encoding="UTF-8"?>
  2. <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  3.          xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  4.     <modelVersion>4.0.0</modelVersion>
  5.     <groupId>net.jhelp.www</groupId>
  6.     <artifactId>mavenAutoDeployDemo</artifactId>
  7.     <version>1.0-SNAPSHOT</version>
  8.     <name>mavenAutoDeployDemo</name>
  9.     <url>http://www.example.com</url>
  10.     <!--配置 git 地址-->
  11.     <scm>
  12.         <url></url>
  13.         <connection>scm:git:https://github.com/javmohan/mavenAutoDeployDemo.git</connection>
  14.         <developerConnection>scm:git:https://github.com/javmohan/mavenAutoDeployDemo.git</developerConnection>
  15.     </scm>
  16.     <properties>
  17.         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
  18.         <maven.compiler.source>1.7</maven.compiler.source>
  19.         <maven.compiler.target>1.7</maven.compiler.target>
  20.     </properties>
  21.     <dependencies>
  22.         <dependency>
  23.             <groupId>junit</groupId>
  24.             <artifactId>junit</artifactId>
  25.             <version>4.11</version>
  26.             <scope>test</scope>
  27.         </dependency>
  28.     </dependencies>
  29.     <build>
  30.         <pluginManagement><!-- lock down plugins versions to avoid using Maven defaults (may be moved to parent pom) -->
  31.             <plugins>
  32.                 <!-- clean lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#clean_Lifecycle -->
  33.                 <plugin>
  34.                     <artifactId>maven-clean-plugin</artifactId>
  35.                     <version>3.1.0</version>
  36.                 </plugin>
  37.                 <!-- default lifecycle, jar packaging: see https://maven.apache.org/ref/current/maven-core/default-bindings.html#Plugin_bindings_for_jar_packaging -->
  38.                 <plugin>
  39.                     <artifactId>maven-resources-plugin</artifactId>
  40.                     <version>3.0.2</version>
  41.                 </plugin>
  42.                 <plugin>
  43.                     <artifactId>maven-compiler-plugin</artifactId>
  44.                     <version>3.8.0</version>
  45.                 </plugin>
  46.                 <plugin>
  47.                     <artifactId>maven-surefire-plugin</artifactId>
  48.                     <version>2.22.1</version>
  49.                 </plugin>
  50.                 <plugin>
  51.                     <artifactId>maven-jar-plugin</artifactId>
  52.                     <version>3.0.2</version>
  53.                 </plugin>
  54.                 <plugin>
  55.                     <artifactId>maven-install-plugin</artifactId>
  56.                     <version>2.5.2</version>
  57.                 </plugin>
  58.                 <plugin>
  59.                     <artifactId>maven-deploy-plugin</artifactId>
  60.                     <version>2.8.2</version>
  61.                 </plugin>
  62.                 <!-- site lifecycle, see https://maven.apache.org/ref/current/maven-core/lifecycles.html#site_Lifecycle -->
  63.                 <plugin>
  64.                     <artifactId>maven-site-plugin</artifactId>
  65.                     <version>3.7.1</version>
  66.                 </plugin>
  67.                 <plugin>
  68.                     <artifactId>maven-project-info-reports-plugin</artifactId>
  69.                     <version>3.0.0</version>
  70.                 </plugin>
  71.             </plugins>
  72.         </pluginManagement>
  73.         <plugins>
  74.             <!--配置 maven-release-plugin 插件-->
  75.             <plugin>
  76.                 <groupId>org.apache.maven.plugins</groupId>
  77.                 <artifactId>maven-release-plugin</artifactId>
  78.                 <version>2.5.3</version>
  79.                 <configuration>
  80.                     <useReleaseProfile>false</useReleaseProfile>
  81.                     <goals>deploy</goals>
  82.                     <checkModificationExcludes>
  83.                         <checkModificationExclude>.idea</checkModificationExclude>
  84.                     </checkModificationExcludes>
  85.                     <autoVersionSubmodules>true</autoVersionSubmodules>
  86.                 </configuration>
  87.             </plugin>
  88.         </plugins>
  89.     </build>
  90.     <!--配置发布到 Nexus 的地址-->
  91.     <distributionManagement>
  92.         <repository>
  93.             <id>jhelp_Release_hosted</id>
  94.             <url>http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/</url>
  95.         </repository>
  96.         <snapshotRepository>
  97.             <id>Snapshot</id>
  98.             <url>http://localhost:8082/nexus/content/repositories/jhelp_Snapshot_hosted/</url>
  99.         </snapshotRepository>
  100.     </distributionManagement>
  101. </project>

4. 配置好之后，执行以下 mvn 命令，提交代码。

  1. mvn scm:checkin -Dmessage="代码提交日志" #代码提交

命令执行结果如下图。

Maven 命令行提交代码到git

图1：提交代码

5. 执行以下 mvn 命令。

  • mvn release:prepare

执行结果如下。

  • [INFO] Scanning for projects...
  • [INFO]
  • [INFO] ---------------< net.jhelp.www:mavenAutoDeployDemo >----------------
  • [INFO] Building mavenAutoDeployDemo 1.0-SNAPSHOT
  • [INFO] --------------------------------[ jar ]---------------------------------
  • [INFO]
  • [INFO] --- maven-release-plugin:2.5.3:prepare (default-cli) @ mavenAutoDeployDemo ---
  • [INFO] Verifying that there are no local modifications...
  • [INFO]   ignoring changes on: **\pom.xml.next, **\release.properties, **\pom.xml.branch, **\pom.xml.tag, .idea, **\pom.xml.backup, **\pom.xml.releaseBackup
  • [INFO] Executing: cmd.exe /X /C "git rev-parse --show-toplevel"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git status --porcelain ."
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [WARNING] Ignoring unrecognized line: ?? release.properties
  • [INFO] Checking dependencies and plugins for snapshots ...
  • What is the release version for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) 1.0: :
  • What is SCM release tag or label for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) mavenAutoDeployDemo-1.0: :
  • What is the new development version for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) 1.1-SNAPSHOT: :
  • [INFO] Transforming 'mavenAutoDeployDemo'...
  • [INFO] Not generating release POMs
  • [INFO] Executing goals 'clean verify'...
  • [WARNING] Maven will be executed in interactive mode, but no input stream has been configured for this MavenInvoker instance.
  • [INFO] [INFO] Scanning for projects...
  • [INFO] [INFO]
  • [INFO] [INFO] ---------------< net.jhelp.www:mavenAutoDeployDemo >----------------
  • [INFO] [INFO] Building mavenAutoDeployDemo 1.0
  • [INFO] [INFO] --------------------------------[ jar ]---------------------------------
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-clean-plugin:3.1.0:clean (default-clean) @ mavenAutoDeployDemo ---
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Using 'UTF-8' encoding to copy filtered resources.
  • [INFO] [INFO] skip non existing resourceDirectory D:\eclipse workSpace 3\mavenAutoDeployDemo\src\main\resources
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Changes detected - recompiling the module!
  • [INFO] [INFO] Compiling 1 source file to D:\eclipse workSpace 3\mavenAutoDeployDemo\target\classes
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Using 'UTF-8' encoding to copy filtered resources.
  • [INFO] [INFO] skip non existing resourceDirectory D:\eclipse workSpace 3\mavenAutoDeployDemo\src\test\resources
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Changes detected - recompiling the module!
  • [INFO] [INFO] Compiling 1 source file to D:\eclipse workSpace 3\mavenAutoDeployDemo\target\test-classes
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-surefire-plugin:2.22.1:test (default-test) @ mavenAutoDeployDemo ---
  • [INFO] [INFO]
  • [INFO] [INFO] -------------------------------------------------------
  • [INFO] [INFO]  T E S T S
  • [INFO] [INFO] -------------------------------------------------------
  • [INFO] [INFO] Running net.jhelp.www.AppTest
  • [INFO] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.023 s - in net.jhelp.www.AppTest
  • [INFO] [INFO]
  • [INFO] [INFO] Results:
  • [INFO] [INFO]
  • [INFO] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
  • [INFO] [INFO]
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-jar-plugin:3.0.2:jar (default-jar) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Building jar: D:\eclipse workSpace 3\mavenAutoDeployDemo\target\mavenAutoDeployDemo-1.0.jar
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] [INFO] BUILD SUCCESS
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] [INFO] Total time:  3.531 s
  • [INFO] [INFO] Finished at: 2021-04-06T16:39:23+08:00
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] Checking in modified POMs...
  • [INFO] Executing: cmd.exe /X /C "git add -- pom.xml"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git rev-parse --show-toplevel"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git status --porcelain ."
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [WARNING] Ignoring unrecognized line: ?? pom.xml.releaseBackup
  • [WARNING] Ignoring unrecognized line: ?? release.properties
  • [WARNING] Ignoring unrecognized line: ?? target/
  • [INFO] Executing: cmd.exe /X /C "git commit --verbose -F C:\Users\79330\AppData\Local\Temp\maven-scm-302875220.commit pom.xml"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git symbolic-ref HEAD"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git push https://github.com/javmohan/mavenAutoDeployDemo.git refs/heads/main:refs/heads/main"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Tagging release with the label mavenAutoDeployDemo-1.0...
  • [INFO] Executing: cmd.exe /X /C "git tag -F C:\Users\79330\AppData\Local\Temp\maven-scm-1133489209.commit mavenAutoDeployDemo-1.0"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git push https://github.com/javmohan/mavenAutoDeployDemo.git refs/tags/mavenAutoDeployDemo-1.0"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git ls-files"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Transforming 'mavenAutoDeployDemo'...
  • [INFO] Not removing release POMs
  • [INFO] Checking in modified POMs...
  • [INFO] Executing: cmd.exe /X /C "git add -- pom.xml"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git rev-parse --show-toplevel"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git status --porcelain ."
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [WARNING] Ignoring unrecognized line: ?? pom.xml.releaseBackup
  • [WARNING] Ignoring unrecognized line: ?? release.properties
  • [WARNING] Ignoring unrecognized line: ?? target/
  • [INFO] Executing: cmd.exe /X /C "git commit --verbose -F C:\Users\79330\AppData\Local\Temp\maven-scm-918010337.commit pom.xml"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git symbolic-ref HEAD"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Executing: cmd.exe /X /C "git push https://github.com/javmohan/mavenAutoDeployDemo.git refs/heads/main:refs/heads/main"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo
  • [INFO] Release preparation complete.
  • [INFO] ------------------------------------------------------------------------
  • [INFO] BUILD SUCCESS
  • [INFO] ------------------------------------------------------------------------
  • [INFO] Total time:  01:06 min
  • [INFO] Finished at: 2021-04-06T16:39:40+08:00
  • [INFO] ------------------------------------------------------------------------

mvn release:prepare 命令执行时，需要我们输入以下信息。

  • What is the release version for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) 1.0: :

询问 mavenAutoDeployDemo 项目的发布版本是什么？默认值是 1.0，此处我们直接回车使用默认值。

  • What is SCM release tag or label for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) mavenAutoDeployDemo-1.0: :

询问 mavenAutoDeployDemo 项目的 SCM 发布标签是什么？默认值是 mavenAutoDeployDemo-1.0，此处我们直接回车使用默认值。

  • What is the new development version for "mavenAutoDeployDemo"? (net.jhelp.www:mavenAutoDeployDemo) 1.1-SNAPSHOT: :

询问 mavenAutoDeployDemo 项目新的开发版本是什么？默认值是1.1-SNAPSHOT，此处我们直接回车使用默认值。

命令执行完成后，查看该项目的 pom.xml，发现其版本号已经更新为 1.1-SNAPSHOT，如图 2 所示。

Maven release:prepare 更新快照版本号
图2：更新版本号

 

6. 执行以下 mvn 命令，将正式版本的构件发布到 Nexus 中。

  1. mvn release:perform

执行结果如下。

  • [INFO] Scanning for projects...
  • [INFO]
  • [INFO] ---------------< net.jhelp.www:mavenAutoDeployDemo >----------------
  • [INFO] Building mavenAutoDeployDemo 1.1-SNAPSHOT
  • [INFO] --------------------------------[ jar ]---------------------------------
  • [INFO]
  • [INFO] --- maven-release-plugin:2.5.3:perform (default-cli) @ mavenAutoDeployDemo ---
  • [INFO] Checking out the project to perform the release ...
  • [INFO] Executing: cmd.exe /X /C "git clone --branch mavenAutoDeployDemo-1.0 https://github.com/javmohan/mavenAutoDeployDemo.git "D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout""
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo\target
  • [INFO] Executing: cmd.exe /X /C "git ls-remote https://github.com/javmohan/mavenAutoDeployDemo.git"
  • [INFO] Working directory: C:\Users\79330\AppData\Local\Temp
  • [INFO] Executing: cmd.exe /X /C "git fetch https://github.com/javmohan/mavenAutoDeployDemo.git"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout
  • [INFO] Executing: cmd.exe /X /C "git checkout mavenAutoDeployDemo-1.0"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout
  • [INFO] Executing: cmd.exe /X /C "git ls-files"
  • [INFO] Working directory: D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout
  • [INFO] Invoking perform goals in directory D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout
  • [INFO] Executing goals 'deploy'...
  • [WARNING] Maven will be executed in interactive mode, but no input stream has been configured for this MavenInvoker instance.
  • [INFO] [INFO] Scanning for projects...
  • [INFO] [INFO]
  • [INFO] [INFO] ---------------< net.jhelp.www:mavenAutoDeployDemo >----------------
  • [INFO] [INFO] Building mavenAutoDeployDemo 1.0
  • [INFO] [INFO] --------------------------------[ jar ]---------------------------------
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-resources-plugin:3.0.2:resources (default-resources) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Using 'UTF-8' encoding to copy filtered resources.
  • [INFO] [INFO] skip non existing resourceDirectory D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\src\main\resources
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-compiler-plugin:3.8.0:compile (default-compile) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Changes detected - recompiling the module!
  • [INFO] [INFO] Compiling 1 source file to D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\target\classes
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-resources-plugin:3.0.2:testResources (default-testResources) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Using 'UTF-8' encoding to copy filtered resources.
  • [INFO] [INFO] skip non existing resourceDirectory D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\src\test\resources
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-compiler-plugin:3.8.0:testCompile (default-testCompile) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Changes detected - recompiling the module!
  • [INFO] [INFO] Compiling 1 source file to D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\target\test-classes
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-surefire-plugin:2.22.1:test (default-test) @ mavenAutoDeployDemo ---
  • [INFO] [INFO]
  • [INFO] [INFO] -------------------------------------------------------
  • [INFO] [INFO]  T E S T S
  • [INFO] [INFO] -------------------------------------------------------
  • [INFO] [INFO] Running net.jhelp.www.AppTest
  • [INFO] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0, Time elapsed: 0.019 s - in net.jhelp.www.AppTest
  • [INFO] [INFO]
  • [INFO] [INFO] Results:
  • [INFO] [INFO]
  • [INFO] [INFO] Tests run: 1, Failures: 0, Errors: 0, Skipped: 0
  • [INFO] [INFO]
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-jar-plugin:3.0.2:jar (default-jar) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Building jar: D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\target\mavenAutoDeployDemo-1.0.jar
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-install-plugin:2.5.2:install (default-install) @ mavenAutoDeployDemo ---
  • [INFO] [INFO] Installing D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\target\mavenAutoDeployDemo-1.0.jar to D:\myRepository\repository\net\jhelp\www\mavenAutoDeployDemo\1.0\mavenAutoDeployDemo-1.0.jar
  • [INFO] [INFO] Installing D:\eclipse workSpace 3\mavenAutoDeployDemo\target\checkout\pom.xml to D:\myRepository\repository\net\jhelp\www\mavenAutoDeployDemo\1.0\mavenAutoDeployDemo-1.0.pom
  • [INFO] [INFO]
  • [INFO] [INFO] --- maven-deploy-plugin:2.8.2:deploy (default-deploy) @ mavenAutoDeployDemo ---
  • [INFO] Uploading to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/1.0/mavenAutoDeployDemo-1.0.jar
  • [INFO] Progress (1): 3.2 kB
  • [INFO]                    
  • [INFO] Uploaded to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/1.0/mavenAutoDeployDemo-1.0.jar (3.2 kB at 15 kB/s)
  • [INFO] Uploading to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/1.0/mavenAutoDeployDemo-1.0.pom
  • [INFO] Progress (1): 4.1/4.7 kB
  • [INFO] Progress (1): 4.7 kB   
  • [INFO]                    
  • [INFO] Uploaded to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/1.0/mavenAutoDeployDemo-1.0.pom (4.7 kB at 42 kB/s)
  • [INFO] Downloading from jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/maven-metadata.xml
  • [INFO] Uploading to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/maven-metadata.xml
  • [INFO] Progress (1): 312 B
  • [INFO]                   
  • [INFO] Uploaded to jhelp_Release_hosted: http://localhost:8082/nexus/content/repositories/jhelp_Release_hosted/net/jhelp/www/mavenAutoDeployDemo/maven-metadata.xml (312 B at 5.2 kB/s)
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] [INFO] BUILD SUCCESS
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] [INFO] Total time:  4.080 s
  • [INFO] [INFO] Finished at: 2021-04-06T17:09:00+08:00
  • [INFO] [INFO] ------------------------------------------------------------------------
  • [INFO] Cleaning up after release...
  • [INFO] ------------------------------------------------------------------------
  • [INFO] BUILD SUCCESS
  • [INFO] ------------------------------------------------------------------------
  • [INFO] Total time:  18.437 s
  • [INFO] Finished at: 2021-04-06T17:09:00+08:00
  • [INFO] ------------------------------------------------------------------------

7. 访问 Nexus 用户界面，查看仓库列表，选中名称为 jhelp_Release_hosted 的宿主仓库，点击 Browse Index 选项卡，查看该仓库中的构件。我们会发现 mavenAutoDeployDemo-1.0.jar 已经被部署到 Nexus 仓库中，如下图。

Maven 部署自动化 Nexus 仓库列表

图3：Nexus 仓库中查看构件

注意：
运行命令前，一定要将所有代码都提交到 Git，不然会报错。
当发布完成后，项目的版本号会自动更新，并且将正式版发布到指定的 Release 库中。

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