maven联通网络下中央仓库不能访问的解决办法

本文详细介绍了Maven构建过程中遇到网络问题的解决方案,包括配置代理和中央仓库镜像的方法,以确保在联通网络下Maven能够正常获取依赖库。

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最近刚开始学习maven工具,下载解压完毕,环境变量配置完毕,运行如下命令尝试快速构建一个maven项目:

mvn archetype:generate

结果就有问题:

[INFO] Scanning for projects...
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-clean-plugin:2.4.1: Plugin org.apache.maven.plugins:maven-clean-plugin:2.4.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-clean-plugin:jar:2.4.1
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-install-plugin/2.3.1/maven-install-plugin-2.3.1.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-install-plugin:2.3.1: Plugin org.apache.maven.plugins:maven-install-plugin:2.3.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-install-plugin:jar:2.3.1
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-deploy-plugin/2.5/maven-deploy-plugin-2.5.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-deploy-plugin:2.5: Plugin org.apache.maven.plugins:maven-deploy-plugin:2.5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-deploy-plugin:jar:2.5
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-site-plugin/2.0.1/maven-site-plugin-2.0.1.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-site-plugin:2.0.1: Plugin org.apache.maven.plugins:maven-site-plugin:2.0.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-site-plugin:jar:2.0.1
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-antrun-plugin/1.3/maven-antrun-plugin-1.3.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-antrun-plugin:1.3: Plugin org.apache.maven.plugins:maven-antrun-plugin:1.3 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-antrun-plugin:jar:1.3
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-assembly-plugin/2.2-beta-5/maven-assembly-plugin-2.2-beta-5.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5: Plugin org.apache.maven.plugins:maven-assembly-plugin:2.2-beta-5 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-assembly-plugin:jar:2.2-beta-5
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-dependency-plugin/2.1/maven-dependency-plugin-2.1.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-dependency-plugin:2.1: Plugin org.apache.maven.plugins:maven-dependency-plugin:2.1 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-dependency-plugin:jar:2.1
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-release-plugin/2.0/maven-release-plugin-2.0.pom
[WARNING] Failed to retrieve plugin descriptor for org.apache.maven.plugins:maven-release-plugin:2.0: Plugin org.apache.maven.plugins:maven-release-plugin:2.0 or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-release-plugin:jar:2.0
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xml from/to central (http://repo1.maven.org/maven2): Error transferring file: Connection timed out: connect
[WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml from/to central (http://repo1.maven.org/maven2): Error transferring file: Connection timed out: connect
Downloading: http://repo1.maven.org/maven2/org/codehaus/mojo/maven-metadata.xml
Downloading: http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-metadata.xml
[WARNING] Could not transfer metadata org.apache.maven.plugins/maven-metadata.xml from/to central (http://repo1.maven.org/maven2): Error transferring file: Connection timed out: connect
[WARNING] Could not transfer metadata org.codehaus.mojo/maven-metadata.xml from/to central (http://repo1.maven.org/maven2): Error transferring file: Connection timed out: connect
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 3:30.786s
[INFO] Finished at: Sun Jul 08 15:55:29 CST 2012
[INFO] Final Memory: 2M/121M
[INFO] ------------------------------------------------------------------------
[ERROR] No plugin found for prefix 'archetype' in the current project and in the plugin groups [org.apache.maven.plugins, org.codehaus.mojo] available from the repositories [local (D:\project\.mave_repo\repo), central (http://repo1.maven.org/maven2)] -> [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/NoPluginFoundForPrefixException

 

这种hello world级别的操作出错,就怀疑是网络问题,于是让其他同事帮我尝试访问http://repo1.maven.org/maven2/org/apache/maven/plugins/maven-clean-plugin/2.4.1/maven-clean-plugin-2.4.1.pom地址,发现完全没问题,感觉异常郁闷。后来网上查了一下,发现是因为联通网络下,无法访问maven.org网站。解决此问题理论上有两个办法,一个是在maven的配置文件中设置代理,另一个是在maven的配置文件中设置联通网络下,能够访问的中央仓库的mirrors。因为也不好找稳定的代理,我就在网上搜索了两个可用的mirror站点,配置方式如下:

1、打开maven配置文件(maven安装目录下的conf目录下的settings.xml文件)

2、搜索mirrors关键字,如果注释说明的下方没有  <mirrors>节点,则建立mirrors节点,带mirrors节点的所有配置如下(复制下面的内容,粘贴到配置文件中即可):

   <mirrors>
    <!-- mirror
     | Specifies a repository mirror site to use instead of a given repository. The repository that
     | this mirror serves has an ID that matches the mirrorOf element of this mirror. IDs are used
     | for inheritance and direct lookup purposes, and must be unique across the set of mirrors.
     |
    <mirror>
      <id>mirrorId</id>
      <mirrorOf>repositoryId</mirrorOf>
      <name>Human Readable Name for this Mirror.</name>
      <url>http://my.repository.com/repo/path</url>
    </mirror>
    -->
     <mirror>
           <id>ibiblio.org</id>
           <name>ibiblio Mirror of http://repo1.maven.org/maven2/</name>
           <url>http://mirrors.ibiblio.org/pub/mirrors/maven2</url>
           <mirrorOf>central</mirrorOf>
           <!-- United States, North Carolina -->
     </mirror>
     <mirror> 
         <id>jboss-public-repository-group</id> 
         <mirrorOf>central</mirrorOf> 
         <name>JBoss Public Repository Group</name> 
         <url>http://repository.jboss.org/nexus/content/groups/public</url> 
     </mirror> 
       
  </mirrors>

 

 

<think>好的,用户提供了他们遇到的Maven构建错误,并附上了他们的pom.xml文件内容。我需要分析这个问题,并给出解决方案。 首先,用户之前的错误是关于无法下载maven-shared-io的依赖,连接被重置。现在他们展示了pom.xml的内容,并提到网络是通的,但可能是在pod环境中。这可能意味着他们正在使用容器(如Kubernetes pod)进行构建,而网络配置可能有所不同。 我需要检查他们的pom.xml是否存在可能导致依赖问题的配置。查看pom.xml,发现项目使用了Spring Boot 2.4.3,这个版本比较旧,可能依赖的插件版本也存在兼容性问题。例如,maven-jar-plugin的版本可能过旧,导致依赖解析问题。另外,父POM的版本可能引用了较旧的插件版本,从而间接导致问题。 接下来,用户提到网络是通的,但问题仍然存在。可能的其他原因包括Maven中央仓库访问问题,或者本地缓存损坏,或者是镜像配置不正确。尤其是在pod环境中,可能存在代理设置或者DNS问题,虽然用户说网络联通,但可能需要进一步确认。 解决方案方面,可以建议用户升级Spring Boot到较新版本,比如2.7.x或3.x,以使用更新的插件版本,减少依赖冲突的可能性。另外,显式指定maven-jar-plugin的版本,确保使用兼容的版本。同时,检查settings.xml中的镜像配置,使用阿里云等国内镜像加速下载。此外,清除本地仓库缓存,强制Maven重新下载依赖,并增加重试次数,以应对可能的网络不稳定。 用户之前可能已经尝试过一些步骤,比如清除缓存和添加镜像,但问题依然存在。这时候需要考虑其他可能性,例如代理设置、容器内的权限问题,或者安全策略阻止了某些下载。可能需要用户提供更多的日志信息,使用-X参数重新运行构建,检查详细的错误信息。 另外,用户提到是在pod环境中,可能需要检查容器内的DNS解析是否正确,是否有足够的权限写入.m2目录,或者存储空间是否充足。有时候,容器中的环境变量可能影响Maven的行为,需要确认是否配置了正确的代理或镜像。 总结来说,需要分步骤指导用户升级依赖版本,检查配置,清理缓存,并验证网络设置。同时,建议用户提供更多日志以进一步诊断问题。</think>--- ### 一、项目配置分析 根据您提供的 `pom.xml`,这是一个**Spring Boot 2.4.3**项目,配置简洁但存在潜在隐患: ```xml <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.4.3</version> <!-- 已较旧,最新2.x为2.7.18 --> </parent> ``` 关键风险点: 1. **插件版本继承**:Spring Boot父POM会锁定插件版本,2.4.3对应的`maven-jar-plugin`版本可能过旧 2. **依赖树冲突**:旧版Spring Boot可能引入不兼容的依赖 --- ### 二、针对性解决方案 #### 方案1:升级Spring Boot版本(推荐) 修改父POM版本(以2.7.18为例): ```xml <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.7.18</version> <!-- 官方维护的2.x最终版 --> <relativePath/> </parent> ``` 升级效果: - 自动使用新版`maven-jar-plugin`(3.3.0+) - 解决旧版依赖冲突问题 #### 方案2:显式指定插件版本 在`<build>`中强制指定新版插件: ```xml <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-jar-plugin</artifactId> <version>3.3.0</version> <!-- 明确指定稳定版本 --> </plugin> <!-- 保留原有spring-boot-maven-plugin --> </plugins> ``` --- ### 三、Pod环境特殊处理 若网络已通但问题依旧,需检查容器内环境: #### 步骤1:验证Maven仓库访问 在Pod内执行: ```bash # 测试Maven中央仓库连通性 curl -v https://repo.maven.apache.org/maven2/org/apache/maven/shared/maven-shared-io/3.0.0/maven-shared-io-3.0.0.jar # 测试阿里云镜像访问(推荐) curl -v https://maven.aliyun.com/repository/public/org/apache/maven/shared/maven-shared-io/3.0.0/maven-shared-io-3.0.0.jar ``` #### 步骤2:容器内缓存清理 ```bash # 清理容器内的Maven缓存 rm -rf /root/.m2/repository/org/apache/maven/shared/maven-shared-io/ ``` #### 步骤3:带调试信息的构建命令 ```bash mvn clean package -X -U -Dmaven.wagon.http.retryHandler.count=5 ``` 参数说明: - `-X`:输出DEBUG级别日志 - `-U`:强制更新快照 - `-Dmaven.wagon.http.retryHandler.count=5`:增加重试次数 --- ### 四、依赖树分析建议 执行依赖树验证: ```bash mvn dependency:tree -Dincludes=org.apache.maven.shared:maven-shared-io ``` 预期正常输出应显示: ``` [INFO] \- org.apache.maven.shared:maven-shared-io:jar:3.0.0:compile ``` 若出现版本冲突,会显示多个版本路径 --- ### 五、容器构建优化建议 针对Pod环境推荐配置: 1. **持久化缓存卷**: ```yaml # Kubernetes Deployment示例 volumes: - name: maven-repo emptyDir: {} volumeMounts: - mountPath: /root/.m2 name: maven-repo ``` 2. **阿里云镜像加速**: ```xml <!-- settings.xml 配置 --> <mirror> <id>aliyun</id> <url>https://maven.aliyun.com/repository/public</url> <mirrorOf>central</mirrorOf> </mirror> ``` --- ### 六、故障排除流程图 ```mermaid graph TD A[构建失败] --> B{错误类型} B -->|连接重置| C[检查网络连通性] B -->|依赖冲突| D[分析dependency:tree] C --> E[测试curl下载] E -->|成功| F[清理缓存重建] E -->|失败| G[配置镜像/代理] D --> H[排除冲突依赖] ``` 如果问题仍未解决,请提供: 1. `mvn -X` 的完整日志片段 2. Pod内执行`curl -v URL`的输出结果 3. 容器基础镜像信息(是否包含完整CA证书)
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