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
<?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
<?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:
<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
<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
<!-- 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
配置完后进行重新部署发布就可以了。