网上没有找到比较合适的,自己看了看,然后放到项目中实验的一下。
很多人都认为比DBCP优秀。
<bean id="c3p0DataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource" destroy-method="close">
<property name="driverClass">
<value>${jdbc.driverClassName}</value>
</property>
<property name="jdbcUrl">
<value>${jdbc.url}</value>
</property>
<property name="user">
<value>${jdbc.username}</value>
</property>
<property name="password">
<value>${jdbc.password}</value>
</property>
<property name="initialPoolSize"><value>10</value></property>
<property name="minPoolSize"><value>5</value></property>
<property name="maxPoolSize"><value>30</value></property>
<property name="acquireIncrement"><value>5</value></property>
<property name="maxIdleTime"><value>10</value></property>
<property name="maxStatements"><value>0</value></property>
</bean>
以下几个参数是使用的基本配置参数:
initialPoolSize:
Number of Connections a pool will try to acquire upon startup. Should be between minPoolSize and maxPoolSize
连接池初始化时获取的链接数,介于minPoolSize和maxPoolSize之间
minPoolSize:
Minimum number of Connections a pool will maintain at any given time.
最小链接数
maxPoolSize:
Maximum number of Connections a pool will maintain at any given time.
最大连接数
acquireIncrement:
Determines how many connections at a time c3p0 will try to acquire when the pool is exhausted.
在当前连接数耗尽的时候,一次获取的新的连接数
maxIdleTime:
Seconds a Connection can remain pooled but unused before being discarded. Zero means idle connections never expire.
最大空闲的时间,单位是秒,无用的链接再过时后会被回收
大盘预测
国富论
posted on 2008-01-18 19:47
华梦行 阅读(234)
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