【maven package】，則依然報錯，但報的是另外一個錯誤：

[INFO] Scanning for projects…[INFO]                                           [INFO] Building Struts 2 Blank Webapp 1.0-SNAPSHOT[INFO] [INFO] BUILD FAILURE[INFO] [INFO] Total time: 0.547s[INFO] Finished at: Wed Apr 13 13:09:48 CST 2011[INFO] Final Memory: 2M/4M[INFO] [ERROR] Failed to execute goal on project my_struts: Could not resolve dependencies for project ricki.cheung.struts:my_struts:war:1.0-SNAPSHOT: Could not find artifact com.sun:tools:jar:1.5.0 at specified path C:Program FilesJavajre1.6.0_01/../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

後在網上查詢解決方法，有外國網友說，在pom.xml新增如下依賴即可：

<dependencies>
<dependency>
<groupId>com.sun</groupId>
<artifactId>tools</artifactId>
<version>1.5.0</version>
<scope>system</scope>
<systemPath>${java.home}/../lib/tools.jar</systemPath>
</dependency>
</dependencies>
 

不過，我試過還是不行，另一個外國網友說，把eclipse中的【Windows】-【Preferences】-【Java】-【Install JREs】改為JDK，而不用JRE，如下圖所示：