使用maven集成开发struts2启动报错如下：
[ERROR] Failed to execute goal on project Prjssh: Could not resolve dependencies for project com.fei.ssh:Prjssh:war:1.0-SNAPSHOT: Could not find artifact com.sun:tools:jar:1.5.0 at specified path C:\Program Files\Java\jre6/../lib/tools.jar -> [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/DependencyResolutionException
解决：
是因为java 运行环境(jre)的问题, 在java的安装目录下面有两个一样的jre, 但是eclipse启动的时候用的D:\Java\jdk1.6.0_21\jre, 而工程build path用的是D:\ava\jre6, 虽然他们一样,但是互相引用不到, 把它们设置一至的就可以把问题解决。
注意区分 jdk 和 jre 。