Solr：更改Windows中的数据目录

dataDir=C:\foo\bar\my_new_data_directory

在’my_new_data_directory’目录中有以下Solr目录：

- index
- tlog

我正在使用Windows,并在启动Solr时收到以下错误：

ERROR - 2014-01-17 12:40:34.578; org.apache.solr.core.CoreContainer; Unable to create core: collection1
org.apache.solr.common.solrException
    at org.apache.solr.core.solrCore.<init>(SolrCore.java:680)
    at org.apache.solr.core.solrCore.<init>(SolrCore.java:625)
    at org.apache.solr.core.CoreContainer.createFromLocal(CoreContainer.java:557)
    at org.apache.solr.core.CoreContainer.create(CoreContainer.java:592)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:271)
    at org.apache.solr.core.CoreContainer$1.call(CoreContainer.java:263)
    at java.util.concurrent.FutureTask$Sync.innerRun(UnkNown Source)
    at java.util.concurrent.FutureTask.run(UnkNown Source)
    at java.util.concurrent.Executors$RunnableAdapter.call(UnkNown Source)
    at java.util.concurrent.FutureTask$Sync.innerRun(UnkNown Source)
    at java.util.concurrent.FutureTask.run(UnkNown Source)
    at java.util.concurrent.ThreadPoolExecutor.runWorker(UnkNown Source)
    at java.util.concurrent.ThreadPoolExecutor$Worker.run(UnkNown Source)
    at java.lang.Thread.run(UnkNown Source)
Caused by: java.io.IOException: The filename,directory name,or volume label Syntax is incorrect
    at java.io.WinNTFileSystem.canonicalize0(Native Method)
    at java.io.Win32FileSystem.canonicalize(UnkNown Source)
    at java.io.File.getCanonicalPath(UnkNown Source)
    at org.apache.solr.core.StandardDirectoryFactory.normalize(StandardDirectoryFactory.java:47)
    at org.apache.solr.core.DirectoryFactory.getDataHome(DirectoryFactory.java:246)
    at org.apache.solr.core.solrCore.<init>(SolrCore.java:677)
    ... 13 more

看起来我没有正确指定文件路径.它应该如何指定？