CentOS Docker nexus3

Maven-Nexus 私服部署发布报错

Posted by Sunfy on 2020-12-17
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我在部署构件至 maven nexus 私服时，有时会出现 Failed to deploy artifacts: Failed to transfer file: … Return code is: 4XX, ReasonPhrase: … 类似这样的错误，那么这些错误是怎么产生，又如何解决呢？我在此将自己在部署过程中遇到的错误整理汇总一下，供大家参阅，希望对大家有所帮助。

一、错误的请求。

出现这个问题首先要确认上传的jar包的版本号

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<version>0.0.1-SNAPSHOT</version>
如果这个版本号有SNAPSHOT 这时会上传到 maven-snapshot上，只是一个快照，如果此时上传快照版本这个时候必须要配置快照版本的配置，否则会出现400错误

Return code is: 400, ReasonPhrase: Bad Request.

image-20210227183953959

　　具体错误信息如下所示：　　

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[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 5.135 s
[INFO] Finished at: 2016-02-18T10:23:58+08:00
[INFO] Final Memory: 19M/174M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project xeger: 
        Failed to deploy artifacts: Could not transfer artifact nl.flotsam:xeger:jar:1.0.2 from/to nexus-releases 
        (http://localhost:8081/nexus/content/repositories/releases/): 
        Failed to transfer file: http://localhost:8081/nexus/content/repositories/releases/nl/flotsam/xeger/1.0.2/xeger-1.0.2.jar. 
        Return code is: 400, ReasonPhrase: Bad Request. -> [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/MojoExecutionException

　400错误的含义是“错误的请求”，在这里的原因是往往是没有部署到nexus的仓库中。产生原因有如下两种：

　　1、部署仓库错误：

　　前面的博文有讲过 Nexus 私服有三种仓库类型：Hosted、Proxy和Virtual，另外还有一个 group （仓库组）用于对多个仓库进行组合。部署的时候只能部署到 Hosted 类型的宿主仓库中，如果是其他类型就会出现这个 400 错误。若是出现这个错误，只需修改 POM 文件中的部署仓库到对应的宿主仓库即可解决此问题。

　　2、宿主仓库不允许重复部署：
　　默认情况下重复部署构件到 Releases 仓库中也会出现 400 错误，原因是 Nexus 私服中 Releases 仓库默认的 Deployment Policy 是 “Disable Redeploy”，所以当你重复部署构件至 Releases 宿主仓库时就会出现这个 400 错误。出现这个问题，只需要将宿主仓库的 Deployment Policy 改为 “” 即可解决，解决方法如下所示：

image-20210227183839572

二、未认证或认证不通过。

Return code is: 401, ReasonPhrase: Unauthorized.

image-20210227183901906

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[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 2.215 s
[INFO] Finished at: 2016-02-18T10:50:56+08:00
[INFO] Final Memory: 19M/175M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project xeger: 
        Failed to deploy artifacts: Could not transfer artifact nl.flotsam:xeger:jar:1.0.2 from/to nexus-releases 
        (http://localhost:8081/nexus/content/repositories/releases/): Failed to transfer file: 
        http://localhost:8081/nexus/content/repositories/releases/nl/flotsam/xeger/1.0.2/xeger-1.0.2.jar. 
        Return code is: 401, ReasonPhrase: Unauthorized. -> [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/MojoExecutionException

　　出现这种错误，原因如下所示：

　　1、是未配置 Nexus 私服用户信息，或配置的账号、密码错误，均会出现 401 的错误，解决方法就是修改 maven settings.xml 配置文件，添加如下信息即可解决问题。　　

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<?xml version="1.0" encoding="UTF-8"?>
<settings xmlns="http://maven.apache.org/SETTINGS/1.0.0"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://maven.apache.org/SETTINGS/1.0.0 http://maven.apache.org/xsd/settings-1.0.0.xsd">
    ...
    <servers>
        <!-- Nexus 构件部署用户信息 -->
        <server>
            <id>nexus-releases</id>
            <username>fanfengping</username>
            <password>密码</password>
        </server>

        <server>
            <id>nexus-snapshots</id>
            <username>fanfengping</username>
            <password>密码</password>
        </server>
        
    </servers>
    ...
</settings>

　　2、是 maven 项目工程 POM 文件中配置的 Nexus 私服宿主仓库的 project.distributionManagement.[repository|snapshotRepository].id 在 maven settings.xml 中配置的宿主仓库 settings.servers.server.id 不存在，统一二者的 ID 后，即可解决此问题。

三、连接失败。

Connection refused: connect. 或 \Return code is: 405**

　　出现这种错误，肯定是 POM 文件中配置的 url 错误，认真检查一下 url 是否正确，然后订正一下，重新部署即可。

四、缺失私服仓库连接配置。

Deployment failed: repository element was not specified in the POM inside distributionManagement element or in -DaltDeploymentRepository=id::layout::url parameter

　　具体提示信息如下所示：

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[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.969 s
[INFO] Finished at: 2016-02-18T10:47:22+08:00
[INFO] Final Memory: 18M/177M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-deploy-plugin:2.8.2:deploy (default-deploy) on project xeger: 
        Deployment failed: repository element was not specified in the POM inside distributionManagement element 
        or in -DaltDeploymentRepository=id::layout::url parameter -> [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/MojoExecutionException

　　此问题是因 POM 文件遗漏了 Nexus 私服连接配置导致的，在 POM 文件中添加 distributionManagement 节点或者在命令行执行时添加 -DaltDeploymentRepository=id::layout::url 参数即可解决。POM 文件中添加 distributionManagement 如下所示：

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<project>
    ...
    
    <developers>
        ...
    </developers>
    
    <distributionManagement>
        <repository>
            <id>nexus-releases</id>
            <name>Nexus Releases Repository Pro</name>
            <url>http://localhost:8081/nexus/content/repositories/releases/</url>
        </repository>

        <snapshotRepository>
            <id>nexus-snapshots</id>
            <name>Nexus Snapshots Repository Pro</name>
            <url>http://localhost:8081/nexus/content/repositories/snapshots/</url>
        </snapshotRepository>
    </distributionManagement>
    
    
    <dependencies>
        ...
    </dependencies>
    
    <build>
        ...
    </build>
</project>

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