原因：Oracle的ojdbc.jar是收費的，所以maven的中央倉庫中沒有這個資源，只能通過配置本地庫才能加載到項目中去。
解決方案：
打開cmd輸入
mvn install:install-file -Dfile=D:\\ojdbc6-11.2.0.3.jar -DgroupId=com.oracle -DartifactId=ojdbc6 -Dversion=11.2.0 -Dpackaging=jar
目錄是該jar的所在目錄，安裝時候自動會下載到setting配置下的目錄裏
報錯內容：
Caused by: org.eclipse.aether.transfer.ArtifactNotFoundException: Failure to find com.oracle:ojdbc6:jar:11.2.0.3 in https://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.newException(DefaultUpdateCheckManager.java:231)
at org.eclipse.aether.internal.impl.DefaultUpdateCheckManager.checkArtifact(DefaultUpdateCheckManager.java:206)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.gatherDownloads(DefaultArtifactResolver.java:585)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.performDownloads(DefaultArtifactResolver.java:503)
at org.eclipse.aether.internal.impl.DefaultArtifactResolver.resolve(DefaultArtifactResolver.java:421)
... 28 more
[ERROR]
[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
Disconnected from the target VM, address: '127.0.0.1:30390', transport: 'socket'
加載成功標誌：
