转载地址：http://blog.csdn.net/wanger_tt/article/details/50965363

在SSM整合框架中常用的有四种连接池
1.dbcp
2.c3p0
3.mybatis自带连接池
4.druid
下面给出三种连接池在spring配置文件中的配制方法

1.dbcp

    <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"  
       destroy-method="close">  
       <property name="driverClassName" value="${jdbc.driver}" />  
       <property name="url" value="${jdbc.url}" />  
       <property name="username" value="${jdbc.username}" />  
       <property name="password" value="${jdbc.password}" />  
    </bean> 

2.c3p0

<bean id="dataSource"  
    class="com.mchange.v2.c3p0.ComboPooledDataSource"  
    destroy-method="close">  
    <property name="driverClass" value="${c3p0.driverClass}"></property>  
    <property name="jdbcUrl" value="${c3p0.url}"></property>  
    <property name="user" value="${c3p0.user}"></property>  
    <property name="password" value="${c3p0.password}"></property>  
    <property name="acquireIncrement" value="${c3p0.acquireIncrement}"></property>  
    <property name="initialPoolSize" value="${c3p0.initialPoolSize}"></property>  
    <property name="maxIdleTime" value="${c3p0.maxIdleTime}"></property>  
    <property name="maxPoolSize" value="${c3p0.maxPoolSize}"></property>  
    <property name="minPoolSize" value="${c3p0.minPoolSize}"></property>  
 
    <property name="acquireRetryDelay" value="1000"></property>  
    <property name="acquireRetryAttempts" value="60"></property>  
    <property name="breakAfterAcquireFailure" value="false"></property>  
</bean>  

3.mybatis自带连接池

    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource"
          >
        <property name="driverClassName" value="${driver}" />
        <property name="url" value="${url}" />
        <property name="username" value="${username}" />
        <property name="password" value="${password}" />
        <property name="loginTimeout" value="${maxWait}"></property>
    </bean>

4. druid

<bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">  
        <!-- 基本属性 url、user、password -->  
        <property name="url" value="${jdbc.url}"/>  
        <property name="username" value="${jdbc.username}"/>  
        <property name="password" value="${jdbc.password}"/>  
 
        <!-- 配置初始化大小、最小、最大 -->  
        <property name="initialSize" value="${ds.initialSize}"/>  
        <property name="minIdle" value="${ds.minIdle}"/>  
        <property name="maxActive" value="${ds.maxActive}"/>  
 
        <!-- 配置获取连接等待超时的时间 -->  
        <property name="maxWait" value="${ds.maxWait}"/>  
 
        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->  
        <property name="timeBetweenEvictionRunsMillis" value="${ds.timeBetweenEvictionRunsMillis}"/>  
 
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->  
        <property name="minEvictableIdleTimeMillis" value="${ds.minEvictableIdleTimeMillis}"/>  
 
        <property name="validationQuery" value="SELECT 'x'"/>  
        <property name="testWhileIdle" value="true"/>  
        <property name="testOnBorrow" value="false"/>  
        <property name="testOnReturn" value="false"/>  
 
        <!-- 打开PSCache，并且指定每个连接上PSCache的大小 -->  
        <property name="poolPreparedStatements" value="false"/>  
        <property name="maxPoolPreparedStatementPerConnectionSize" value="20"/>  
 
        <!-- 配置监控统计拦截的filters -->  
        <property name="filters" value="stat"/>  
    </bean>