windows中tomcat启动报APR错

org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\ProgramWork\Java\jdk1.6.0_31\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;.;C:\ProgramWork\Java\jdk1.6.0_31\bin:C:\ProgramWork\Java\jdk1.6.0_31\jre\bin;C:\Windows\system32;................ (x86)\IDM Computer Solutions\UltraCompare\;C:\ProgramWork\GWT_library\App Engine_Home\google_appengine\;.

将tomcat/bin目录 下的 tcnative-1.dll 复制到 jdk/bin 目录下