maven编译问题

eclipse 中用maven 打包项目时，出现如下问题：

Unable to locate the Javac Compiler in:
C:\Program Files\Java\jre1.8.0_71\..\lib\tools.jar
Please ensure you are using JDK 1.4 or above and
not a JRE (the com.sun.tools.javac.Main class is required).
In most cases you can change the location of your Java
installation by setting the JAVA_HOME environment variable.

 

解决方案：

所在项目->Propeties->Java Build Path-》Libraries->Edit->Installed JREs->Add->Stantand VM->添加C:\Program Files\Java\jdk.8.0_71\jre

所在项目->Run As->Run Configurations->Maven Build->所在项目->JAR->Workspace default JRE