问题
mvn仓库地址变更之后，mvn 命令报错，无法下载jar包
- 报错
[*ERROR*] Plugin org.apache.maven.plugins:maven-enforcer-plugin:1.2
or one of its dependencies could not be resolved: Failed to read artifact descriptor for org.apache.maven.plugins:maven-enforcer-plugin:jar:1.2:
Could not transfer artifact org.apache.maven.plugins:maven-enforcer-plugin:pom:1.2 from/to central (https://repo.maven.apache.org/maven2):
sun.security.validator.ValidatorException: PKIX path building failed:
sun.security.provider.certpath.SunCertPathBuilderException: unable to find valid certification path to requested target -> *[Help 1]*
解决
- 导入mvn仓库网址的https相关证书到本地JDK
- 关闭抓包工具
原因
- mvn客户端连接服务端出现问题
仓库地址由http转到了https，https连接会校验证书；而Charles（抓包工具）为了抓取https包，修改了https证书，签发者变了；mvn 客户端不信任修改后的https证书，拒绝建立连接
-
正常aliyun.com的CA证书
image.png -
抓包工具Charles打开之后的证书
image.png
扩展
- 其他java报出的unable to find valid certification path to requested target，基本也都是这个原因，可以了解一下 https双向认证
参考
彻底解决unable to find valid certification path to requested target
