solr中的一些常见错误
（1）Caused by: java.lang.ClassNotFoundException: Unable to load jdbcDataSource or org.apache.solr.handler.dataimport.jdbcDataSource at org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:920)at org.apache.solr.handler.dataimport.DataImporter.getDataSourceInstance(DataImporter.java:373)
... 10 more
Caused by: org.apache.solr.common.SolrException: Error loading> at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:490)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:421)
at org.apache.solr.handler.dataimport.DocBuilder.loadClass(DocBuilder.java:910)
... 11 more
Caused by: java.lang.ClassNotFoundException: jdbcDataSource
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:423)
at java.net.FactoryURLClassLoader.loadClass(URLClassLoader.java:789)
at java.lang.ClassLoader.loadClass(ClassLoader.java:356)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.solr.core.SolrResourceLoader.findClass(SolrResourceLoader.java:474)
... 13 more
解决办法：看加载数据库配置的那个文件即data-config.xml文件是否错误。99%可能是这里面有错，像我就是
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