报错信息
[ERROR] Failed to execute goal org.springframework.boot:spring-boot-maven-plugin:2.2.5.RELEASE:repackage (repackage) on project ndc172: Execution repackage of goal org.springframework.boot:spring-boot-maven-plugin:2.2.5.RELEASE:repackage failed: Plugin org.springframework.boot:spring-boot-maven-plugin:2.2.5.RELEASE or one of its dependencies could not be resolved: Failed to collect dependencies at org.springframework.boot:spring-boot-maven-plugin:jar:2.2.5.RELEASE -> org.springframework.boot:spring-boot-loader-tools:jar:2.2.5.RELEASE: Failed to read artifact descriptor for org.springframework.boot:spring-boot-loader-tools:jar:2.2.5.RELEASE: Could not transfer artifact org.springframework.boot:spring-boot-loader-tools:pom:2.2.5.RELEASE from/to central (https://repo.maven.apache.org/maven2): Connect to repo.maven.apache.org:443 [repo.maven.apache.org/151.101.196.215] failed: Connection timed out: connect -> [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/PluginResolutionException
问题分析
由于近期公司内部maven仓库关了，而Jekins部署的服务器只能访问内网，于是导致了上述问题。外网访问不了那就把依赖先下载下来然后上传到jekins服务器即可。
解决过程
1.上传相关依赖到Jekins服务器，随便找一个目录存放即可（这里我放在了C:\.m2\repository）
2.修改Jekins编译环境配置，maven编译指令添加参数 -Dmaven.repo.local=C:\.m2\repository（等号后面是刚才依赖上传到的目录）
3.正常情况下完成上述两个步骤就可以了。但是今天遇到了一个新问题，上传之后明明本地已经有依赖了，maven还是一直去远程仓库下载依赖。所以我把所有C:\.m2\repository下所有的_remote.repositories文件全部剪切，丢进垃圾桶。
再回到Jekins重新Build一下。
