如何使用Hibernate配置连接池？
[英]How to configure a connection pool with Hibernate?
问题描述
How to configure connection pooling with Spring and Hibernate? 
如何使用Spring和Hibernate配置连接池？ My program as a server to listen request from Client. 我的程序作为服务器来侦听来自客户端的请求。 If client send request every hours, my program run normally. 如果客户端每小时发送一次请求，则我的程序正常运行。 But if client don't send request from 00:00 am to 07:00 am, my program catch exception. 但是如果客户从上午00:00到上午07:00不发送请求，我的程序将捕获异常。
The exception is: 例外是：
org.hibernate.TransactionException: rollback failed at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.rollback(AbstractTransactionImpl.java:215) at CardCharging_MemCache.dao.FilterDao.getConnectorId(FilterDao.java:123) at CardCharging_MemCache.bussiness.CDVFilterRequestProcess.PCSL(CDVFilterRequestProcess.java:29) at CardCharging_MemCache.myhttp.myHttphandle.handle(myHttphandle.java:113) at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source) at sun.net.httpserver.AuthFilter.doFilter(Unknown Source) at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source) at sun.net.httpserver.ServerImpl$Exchange$LinkHandler.handle(Unknown Source) at com.sun.net.httpserver.Filter$Chain.doFilter(Unknown Source) at sun.net.httpserver.ServerImpl$Exchange.run(Unknown Source) at sun.net.httpserver.ServerImpl$DefaultExecutor.execute(Unknown Source) at sun.net.httpserver.ServerImpl$Dispatcher.handle(Unknown Source) at sun.net.httpserver.ServerImpl$Dispatcher.run(Unknown Source) at
The exception is about connection. 关于连接的例外。 Anyone help me. 有人帮我 Plz. l Thaks! 解冻！
2 个解决方案
解决方案1
0 2014-02-21 04:33:19
Normal DB connection invalidate if connection is idle for certain time [8 hours in mysql default], To avoid this you just have to set these properties in your connection pool - "validationQuery", "validationInterval", "testWhileIdle", "testOnBorrow". 如果连接空闲了一段时间（在mysql默认情况下为8个小时），则正常的数据库连接将失效，为避免这种情况，您只需在连接池中设置以下属性-“ validationQuery”，“ validationInterval”，“ testWhileIdle”，“ testOnBorrow”。 They will live your connection during idle time and always return a valid connection from pool. 他们将在空闲时间建立您的连接，并始终从池中返回有效的连接。
解决方案2
0 2014-02-21 04:40:19
Try with this properties in your connection pool, them should avoid session invalidation 在连接池中尝试使用此属性，它们应避免会话无效
<bean class="org.apache.tomcat.jdbc.pool.DataSource" id="dataSource" >
<property name="driverClassName" value="${database.driverClassName}"/>
<property name="url" value="${database.url}"/>
<property name="username" value="${database.username}"/>
<property name="password" value="${database.password}"/>
<property name="minIdle" value="${database.minIdle}"/>
<property name="initialSize" value="${database.initialPoolSize}"/>
<property name="maxActive" value="${database.maxPoolSize}"/>
<property name="maxIdle" value="${database.maxIdle}"/>
<property name="testOnBorrow" value="true"/>
<property name="validationQuery" value="SELECT 1"/>
<property name="timeBetweenEvictionRunsMillis" value="30000"/>
<property name="maxWait" value="10000"/>
<property name="minEvictableIdleTimeMillis" value="30000"/>
<property name="logAbandoned" value="true"/>
<property name="testWhileIdle" value="true"/>
<property name="validationInterval" value="300000"/>
<property name="jdbcInterceptors" value="org.apache.tomcat.jdbc.pool.interceptor.SlowQueryReport(threshold=10000)"/>
</bean>
Read about the properties and their explanation here.. 在此处阅读有关属性及其解释的信息。
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