强烈推荐proxool,因为他不但可以监控后台。还可以有效的释放连接。在connection close时,也就是归还connection,
关闭所有的statement,并且判断是否autocommit,如果不行,就rollback,并且设置true,
可以参考proxool的org.logicalcobwebs.proxool.ConnectionResetter类
connection pool把connection reset置回initial state。
dbcp的配置
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="${db.driverClassName}"/>
<property name="url" value="${db.url}"/>
<property name="username" value="${db.username}"/>
<property name="password" value="${db.password}"/>
<property name="validationQuery">
<value>SELECT 1</value>
</property>
<property name="testOnBorrow">
<value>true</value>
</property>
</bean>
c3p0的配置, 注意是''driverClass' , 'jdbcUrl', 'user' , 'password'
<bean id="dataSource"
class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass">
<value>oracle.jdbc.driver.OracleDriver</value>
</property>
<property name="jdbcUrl">
<value>jdbc:oracle:thin:@218.202.151.179:58580:ORA9I</value>
</property>
<property name="user">
<value>oa</value>
</property>
<property name="password">
<value>XXXX</value>
</property>
<property name="minPoolSize">
<value>15</value>
</property>
<property name="acquireIncrement">
<value>5</value>
</property>
<property name="maxPoolSize">
<value>25</value>
</property>
或
<bean id="c3p0DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass">
<value>${db.driverClass}</value>
</property>
<property name="jdbcUrl">
<value>${db.url}</value>
</property>
<!--
<property name="user">
<value>${db.user}</value>
</property>
<property name="password">
<value>${db.pass}</value>
</property>
-->
<property name="properties">
<props>
<prop key="c3p0.acquire_increment">5</prop>
<prop key="c3p0.idle_test_period">100</prop>
<prop key="c3p0.max_size">100</prop>
<prop key="c3p0.max_statements">0</prop>
<prop key="c3p0.min_size">10</prop>
<prop key="user">${db.user}</prop>
<prop key="password">${db.pass}</prop>