maven No compiler is provided in this environment. Perhaps you are running on a JRE rather than JDK
最近在做maven项目时候，报No compiler is provided in this environment. Perhaps you are running on a JRE rather than JDK，
经过查看发现没有使用jdk造成的，下面是解决办法：
在eclipse中
Window > Preferences > Java > Installed JREs
点击Search 选择安装的JDK目录