maven编译项目时出错，提示信息如下：
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.1:testCompile (default-testCompile) on project springside-core: Compilation failure
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
解决方案：
1，在eclipse的菜单中，进入 Window > Preferences > Java > Installed JREs ->Add ->Standard VM
jre home 选择jdk安装目录，然后选中
2，右键项目build path
jdk是开发工具
jre是运行环境
编译用的都是jdk的resources嘛，开发时不能只有运行库，应该具备开发库，就是这个意思。
另外***is not a servlet的错
servlet和jsp的作用域加上就可以