JDBC4通信接收

我有一台运行Java应用程序的机器,它与在同一实例上运行的MySQL实例进行对话。应用程序 使用MySQL中的JDBC4驱动程序。我一直在获取com.mysql.jdbc.exceptions.jdbc4.communicationsException 在随机时间。

这是全部信息。

无法打开事务的JDBC连接;嵌套异常为

com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: The last packet successfully received from the server was25899 milliseconds ago.The last packet sent successfully to the server was 25899 milliseconds ago, which  is longer than the server configured value of 'wait_timeout'. You should consider either expiring and/or testing connection validity before use in your application, increasing the server configured values for client timeouts, or using the Connector/J connection property 'autoReconnect=true' to avoid this problem.

对于MySQL,全局“wait-timeout”和“interactive-timeout”的值设置为3600秒,“connect-timeout”的值设置为60秒。等待超时值远高于26秒(25899毫秒)。在异常跟踪中提到。

我将dbcp用于连接池,这里是数据源的SpringBean配置。

   <bean id="dataSource" destroy-method="close" class="org.apache.commons.dbcp.BasicDataSource" >
          <property name="driverClassName" value="com.mysql.jdbc.Driver"/>
                    <property name="url" value="jdbc:mysql://localhost:3306/db"/>
                <property name="username" value="xxx"/>
                <property name="password" value="xxx" />
                    <property name="poolPreparedStatements" value="false" />
            <property name="maxActive" value="3" />
            <property name="maxIdle" value="3" />
    </bean>

知道为什么会这样吗?使用c3p0可以解决问题吗?