Maven包编译错误

Question

我在Eclipse中使用maven创建了一个webapp项目。当我在命令提示符下运行命令mvn包时，它会显示folowing错误。

[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] No compiler is provided in this environment. Perhaps you are running on a JRE rather than a JDK?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 4.310s
[INFO] Finished at: Tue Mar 05 14:32:23 IST 2013
[INFO] Final Memory: 16M/218M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.0:compile (default-compile) on project  Compilation fa
ilure
[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

我尝试更改jdk和JRE。但不起作用。仍然显示相同的错误

Answer 1

在Windows 7-64位中，存在一个权限问题，使安装程序无法将文件c:\programfiles\java\jdk1.6.xx\lib\tools.jar解压缩到本地文件中。这个jar文件是maven-compiler-pluginVersion3.x使用的，而不是通常的javac

解决方案：以管理员的身份运行Java JDK安装程序！并确保tools.jar位于C:\program files\java\jdk1.6.xx\lib\中

如果您正在使用m2e maven集成插件，您希望通过Eclipse内部的以下步骤看到该文件对Eclipse可见：

• 转到窗口->首选项->Java->已安装的JRE
• 选择正在使用的JDK(C:\Program Files\java\jdk1.6.xx)
• 按编辑查看包括tools.jar在内的JAR列表，现在您可以将其添加为add External JAR

然后通过以下步骤配置maven运行：

• 运行->运行配置->填写名称、基目录和目标。
• 然后在同一窗口中移动到JRE选项卡，并指向JDK\jdk1.6.xx\