我正在使用jackcess來訪問我的訪問數據庫。但我有以下例外Jackcess「NoClassDefFoundError」異常
Exception in thread "main" java.lang.NoClassDefFoundError: org/apache/commons/lang/builder/CompareToBuilder
at com.healthmarketscience.jackcess.impl.RowIdImpl.compareTo(RowIdImpl.java:113)
at com.healthmarketscience.jackcess.impl.IndexData$Entry.compareTo(IndexData.java:1838)
at com.healthmarketscience.jackcess.impl.IndexData$Entry.compareTo(IndexData.java:1646)
at java.util.Collections.indexedBinarySearch(Collections.java:273)
at java.util.Collections.binarySearch(Collections.java:259)
at com.healthmarketscience.jackcess.impl.IndexData$DataPage.findEntry(IndexData.java:2368)
at com.healthmarketscience.jackcess.impl.IndexData.findEntryPosition(IndexData.java:722)
at com.healthmarketscience.jackcess.impl.IndexData.access$3300(IndexData.java:56)
at com.healthmarketscience.jackcess.impl.IndexData$EntryCursor.updatePosition(IndexData.java:2133)
at com.healthmarketscience.jackcess.impl.IndexData$EntryCursor.restorePosition(IndexData.java:2072)
at com.healthmarketscience.jackcess.impl.IndexData$EntryCursor.restorePosition(IndexData.java:2055)
at com.healthmarketscience.jackcess.impl.IndexData$EntryCursor.beforeEntry(IndexData.java:2017)
at com.healthmarketscience.jackcess.impl.IndexCursorImpl.findPotentialRow(IndexCursorImpl.java:368)
at com.healthmarketscience.jackcess.impl.IndexCursorImpl.findFirstRowByEntryImpl(IndexCursorImpl.java:262)
at com.healthmarketscience.jackcess.impl.IndexCursorImpl.findFirstRowByEntry(IndexCursorImpl.java:135)
at com.healthmarketscience.jackcess.impl.DatabaseImpl$DefaultTableFinder.findRow(DatabaseImpl.java:1890)
at com.healthmarketscience.jackcess.impl.DatabaseImpl$TableFinder.findObjectId(DatabaseImpl.java:1799)
at com.healthmarketscience.jackcess.impl.DatabaseImpl.readSystemCatalog(DatabaseImpl.java:804)
at com.healthmarketscience.jackcess.impl.DatabaseImpl.<init>(DatabaseImpl.java:513)
at com.healthmarketscience.jackcess.impl.DatabaseImpl.open(DatabaseImpl.java:386)
at com.healthmarketscience.jackcess.DatabaseBuilder.open(DatabaseBuilder.java:170)
at com.healthmarketscience.jackcess.DatabaseBuilder.open(DatabaseBuilder.java:193)
at ass.Access.main(Access.java:25)
Caused by: java.lang.ClassNotFoundException: org.apache.commons.lang.builder.CompareToBuilder
at java.net.URLClassLoader$1.run(URLClassLoader.java:366)
at java.net.URLClassLoader$1.run(URLClassLoader.java:355)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(URLClassLoader.java:354)
at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
... 23 more
我已經使用jdbc,但它也不工作。如何解決我的問題?
迪宏我已經添加了通用日誌,commons編解碼器,poi,junit,log4j。它不工作。我錯過了什麼? – Sarah
commons lang,版本2.0可從http://repo1.maven.org/maven2/commons-lang/commons-lang/2.0/commons-lang-2.0.jar下載。 –
我已經添加了commons lang文件,但現在我已經得到了這個警告log4j:警告沒有appender可以找到記錄器(com.healthmarketscience.jackcess.impl.DatabaseImpl)。 log4j:WARN請正確初始化log4j系統。我能做什麼? – Sarah