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在我們的項目中我們使用Spring & Hibernate。在服務器和其他Developers機器項目上運行成功。然而，在我通過SVN更新我的項目之後，我得到一個錯誤列表，並且我無法解決它兩天。我已經閱讀了很多關於它的文章，並試着解決問題。甚至，我已經完全刪除了項目並再次結帳，恢復了數據庫但沒有任何更改。 MySQL是檢查和工作，Spring＆Hibernate c3p0錯誤無法完成模式驗證
這是錯誤的：
Unable to find org.hibernate.search.event.FullTextIndexEventListener on the classpath. Hibernate Search is not enabled.
2013-01-16 04:36:22,512 ERROR [org.hibernate.tool.hbm2ddl.SchemaValidator] - could not complete schema validation
java.sql.SQLException: Connections could not be acquired from the underlying database!
...
2013-01-16 04:36:22,526 WARN [net.sf.ehcache.hibernate.AbstractEhcacheRegionFactory] - Couldn't find a specific ehcache configuration for cache named [org.hibernate.cache.StandardQueryCache]; using defaults.
2013-01-16 04:36:33,475 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] - com[email protected]10dba0d -- APPARENT DEADLOCK!!! Creating emergency threads for unassigned pending tasks!
2013-01-16 04:36:33,476 WARN [com.mchange.v2.async.ThreadPoolAsynchronousRunner] - com[email protected]10dba0d -- APPARENT DEADLOCK!!! Complete Status:
Managed Threads: 1
Active Threads: 1
Active Tasks:
[email protected]2b (com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0)
Pending Tasks:
[email protected]43
Pool thread stack traces:
Thread[com.mchange.v2.async.ThreadPoolAsynchronousRunner$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)
2013-01-16 04:36:51,878 WARN [com.mchange.v2.resourcepool.BasicResourcePool] - [email protected]2b -- Acquisition Attempt Failed!!! Clearing pending acquires. While trying to acquire a needed new resource, we failed to succeed more than the maximum number of allowed acquisition attempts (30). Last acquisition attempt exception:
java.sql.SQLException: No suitable driver
at java.sql.DriverManager.getDriver(DriverManager.java:264)
at com.mchange.v2.c3p0.DriverManagerDataSource.driver(DriverManagerDataSource.java:223)
at com.mchange.v2.c3p0.DriverManagerDataSource.getConnection(DriverManagerDataSource.java:134)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:182)
at com.mchange.v2.c3p0.WrapperConnectionPoolDataSource.getPooledConnection(WrapperConnectionPoolDataSource.java:171)
at com.mchange.v2.c3p0.impl.C3P0PooledConnectionPool$1PooledConnectionResourcePoolManager.acquireResource(C3P0PooledConnectionPool.java:137)
at com.mchange.v2.resourcepool.BasicResourcePool.doAcquire(BasicResourcePool.java:1014)
at com.mchange.v2.resourcepool.BasicResourcePool.access$800(BasicResourcePool.java:32)
at com.mchange.v2.resourcepool.BasicResourcePool$AcquireTask.run(BasicResourcePool.java:1810)
at com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread.run(ThreadPoolAsynchronousRunner.java:547)
這裏是Hiernate> C3P0的conf
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="jdbcUrl" value="${jdbc.url}" />
<property name="user" value="${jdbc.username}" />
<property name="password" value="${jdbc.password}" />
<property name="initialPoolSize" value="1" />
<property name="minPoolSize" value="1" />
<property name="maxPoolSize" value="5" />
<property name="idleConnectionTestPeriod" value="500" />
<property name="acquireIncrement" value="1" />
<property name="maxStatements" value="50" /> <!-- I tried this value = 0 it does not work -->
<property name="numHelperThreads" value="1" />
</bean>
DB.properties
hibernate.hbm2ddl.auto=validate
hibernate.hbm2ddl.import_files=/import_standard.sql
hibernate.show_sql=false
hibernate.format_sql=true
hibernate.generate_statistics=false
hibernate.use_sql_comments=true
hibernate.query.factory_class=org.hibernate.hql.ast.ASTQueryTranslatorFactory
hibernate.cache.use_query_cache=true
hibernate.cache.region.factory_class=net.sf.ehcache.hibernate.SingletonEhCacheRegionFactor
hibernate.cache.use_second_level_cache=true
jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/asd?autoReconnect=true
jdbc.username=asd
jdbc.password=asdasd
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
Ehcahce.xml
<?xml version="1.0" encoding="UTF-8"?>
<cache
name="org.hibernate.cache.UpdateTimestampsCache"
maxElementsInMemory="50000"
eternal="true"
overflowToDisk="true"/>
<defaultCache
maxElementsInMemory="10000"
eternal="false"
timeToIdleSeconds="120"
timeToLiveSeconds="120"
overflowToDisk="true"
maxElementsOnDisk="10000000"
diskPersistent="false"
diskExpiryThreadIntervalSeconds="120"
memoryStoreEvictionPolicy="LRU"/>
<cache
name="ncStandardElements"
maxElementsInMemory="100000"
eternal="false"
overflowToDisk="true"
timeToLiveSeconds="600"/>
<cache
name="ncOrderElements"
maxElementsInMemory="100000"
eternal="false"
overflowToDisk="true"
timeToLiveSeconds="60"/>
<cache
name="ncAdminElements"
maxElementsInMemory="100000"
eternal="false"
overflowToDisk="true"
timeToLiveSeconds="60"/>
我是新的Spring和Hibernate，如閱讀文章，這些代碼塊是重要的，應加以管理。如果需要其他代碼塊，請對其進行評論。
應該有更多的堆棧跟蹤上這一點，但我的猜測是，你不必在你的類路徑MySQL的JAR文件。 – nobeh
是的，還有更多的堆棧跟蹤，我只是在這裏寫下錯誤消息。在Maven的依賴關係中有mysql-connector-java-5.1.12.jar – efirat