No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:compile (default-compile) on project miweb: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]

意思是JDK有問題，Windows--->Preferences-->搜索框輸入install，找到Installed JREs

從上圖中可以看出，引用的是jre而不是JDK，換成JDK

然後在打包就可以了：

打包方式：clean package -Dmaven.test.skip=true
原文鏈接：https://blog.csdn.net/muyeju/article/details/103167274