Maven Error:No compiler is provided in this environment的解决办法

这两天一直停留在一个问题：

对项目进行run as->maven install就会报错：

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

我明明使用的就是jdk啊...

百度一下，发现都是一个解决办法：

window->preference->java->install JREs：将jre改为jdk

对部分人来说，这个办法有用，但是我改了之后还是老样子，然后又搜到有人说要继续操作：

eclipse.ini添加：

-vm

...\java\jdk\bin\javaw.exe(也就是%JAVA_HOME%\bin\javaw.exe)

并且说要在-vmargs前添加

但是还是没用。

然后搜到stack overflow

https://stackoverflow.com/questions/15220392/maven-package-compilation-error

In Windows 7 - 64 bit, there is a permissions problem which prevents the installer from unpacking the file C:\Program Files\Java\jdk1.6.xx\lib\tools.jar into your local. This jar file is what maven-compiler-plugin version 3.x uses instead of the usual javac

Solution:Run, as an administrator, the Java JDK installer! And make sure the tools.jar is sitting in the C:\Program Files\Java\jdk1.6.xx\lib\

In case you are using m2e maven integration plugin, you want to see the file is visible to Eclipse via the following steps inside Eclipse:

• Go to Window -> Preferences -> Java -> installed JREs
• Select the JDK you are using (C:\Program Files\Java\jdk1.6.xx)
• Press Edit to see the list of jars including tools.jar, OW you can add it as Add External JAR

Then configure the maven run through these steps:

• Run->Run configurations->Fill in Name, Base directory and Goals.
• Then in the same window move to the JRE tab and point to the JDK \jdk1.6.xx\

前边一半部分的内容就解决了这个问题，粗略翻译一下：

在64位win7中，存在一个权限问题，这个问题会阻止安装包将tools.jar安装到你的机子上，maven 3.x版本使用的正是这个jar包而非javac

解决方法：管理员权限运行jdk安装包，确保tools.jar在你的jdk\lib\目录下。