在用hibernate，spring，struts，3个框架的做项目的时候，运行tomcat，报了下面一推错误：
[0629 18:12:30 285 WARN ] ThreadPoolAsynchronousRunner.java:608 - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@d3ade7 -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
[0629 18:12:30 301 WARN ] ThreadPoolAsynchronousRunner.java:624 - com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@d3ade7 -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 3
Active Threads: 3
Active Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@140fee (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@121fd61 (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@82254d (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
Pending Tasks:
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@5f1ae9
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@1dfc8a0
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask@ec898a
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#2,5,main]
java.lang.Thread.sleep(Native Method)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#1,5,main]
java.lang.Thread.sleep(Native Method)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0,5,main]
java.lang.Thread.sleep(Native Method)
com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1805)
com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
弄了好久，上网也查了很久，最后没有答案，
com.mchange.v2.async.ThreadPoolAsynchronousRunner$DeadlockDetector@d3ade7 -- APPARENT DEADLOCK!!!
吃了顿饭回来，忽然想到自己都没有在数据库里面创建一个要连接的database，或数据库连接文件写错，所以才导致这个错误，
果断创建数据库，启动项目，OK，问题解决，