如何将JAR包发布到Maven中央仓库？
注意，第一次使用域名的groupId时，需要验证域名所有权，即新加一个TXT的DNS解析，参考如下说明：
To register this Group Id you must prove ownership of the domain coder4.com. Please complete the following steps to continue:
- Add a DNS TXT record to your domain with the text: OSSRH-81020. Please read https://central.sonatype.org/faq/how-to-set-txt-record/
- Edit this ticket and set Status to Open.
More info: https://central.sonatype.org/publish/