一、导入proxool.jar包
案例用的是proxool-0.8.3.jar，一般通过MyEclipse配置的SSH都会包含这个jar，如果没有，就去网上搜下下载导入就好了。
二、新建Proxool配置文件
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<?xml version="1.0" encoding="UTF-8"?>
<!-- the proxool configuration can be embedded within your own application's.
Anything outside the "proxool" tag is ignored. -->
<something-else-entirely>
<proxool>
<alias>dbpool</alias>
<!--proxool只能管理由自己产生的连接-->
<driver-url>jdbc:mysql://localhost:3306/projectmanagement</driver-url>
<driver-class>com.mysql.jdbc.Driver</driver-class>
<driver-properties>
<property name="user" value="root" />
<property name="password" value="" />
</driver-properties>
<!-- proxool自动侦察各个连接状态的时间间隔(毫秒),侦察到空闲的连接就马上回收,超时的销毁-->
<house-keeping-sleep-time>90000</house-keeping-sleep-time>
<!-- 指因未有空闲连接可以分配而在队列中等候的最大请求数,超过这个请求数的用户连接就不会被接受-->
<maximum-new-connections>20</maximum-new-connections>
<!-- 最少保持的空闲连接数-->
<prototype-count>5</prototype-count>
<!-- 允许最大连接数,超过了这个连接，再有请求时，就排在队列中等候，最大的等待请求数由maximum-new-connections决定-->
<maximum-connection-count>100</maximum-connection-count>
<!-- 最小连接数-->
<minimum-connection-count>10</minimum-connection-count>
<!--用于保持连接的测试语句 -->
<house-keeping-test-sql>select CURRENT_DATE</house-keeping-test-sql>
</proxool>
</something-else-entirely>
三、修改Hibernate配置文件
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<?xml version='1.0' encoding='UTF-8'?>
<!DOCTYPE hibernate-configuration PUBLIC
"-//Hibernate/Hibernate Configuration DTD 3.0//EN"
"http://hibernate.sourceforge.net/hibernate-configuration-3.0.dtd">
<!-- Generated by MyEclipse Hibernate Tools. -->
<hibernate-configuration>
<session-factory>
<property name="connection.provider_class">org.hibernate.connection.ProxoolConnectionProvider</property>
<property name="proxool.xml">proxool.xml</property>
<property name="proxool.pool_alias">dbpool</property>
<property name="hibernate.proxool.existing_pool">true</property>
<property name="dialect">org.hibernate.dialect.MySQLDialect</property>
<property name="show_sql">false</property>
<mapping resource="com/ProjectManagement/entity/Project.hbm.xml" />
</session-factory>
</hibernate-configuration>
主要配置是这四句话：
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<property name="connection.provider_class">org.hibernate.connection.ProxoolConnectionProvider</property>
<property name="proxool.xml">proxool.xml</property>
<property name="proxool.pool_alias">dbpool</property>
<property name="hibernate.proxool.existing_pool">true</property>
如果你的hibernate是在applicationContext.xml中配置的，可以对上面的配置做相应的更改
或者改成外部文件配置，在applicationContext.xml加入下面的代码
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<bean id="sessionFactory"
class="org.springframework.orm.hibernate3.LocalSessionFactoryBean">
<property name="configLocation"
value="classpath:hibernate.cfg.xml">
</property>
</bean>
四、修改Web.xml配置文件
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<!-- servlet 数据库加载 -->
<servlet>
<servlet-name>ServletConfigurator</servlet-name>
<servlet-class>org.logicalcobwebs.proxool.configuration.ServletConfigurator</servlet-class>
<init-param>
<param-name>xmlFile</param-name>
<param-value>WEB-INF/classes/proxool.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
注：xmlFile名字不要修改哦
