1、下载proxool 地址：http://proxool.sourceforge.net
2、解压缩proxool-0.9.0RC2.zip，拷贝lib/proxool-0.9.0RC2.jar到web-info/lib
   拷贝jdbc驱动到web-info/lib
3、在WEB-INF/classes/下建立文件：Proxool.properties
文件内容如下：
//网上查车数据库
jdbc-1.proxool.alias=WEBGIS
jdbc-1.proxool.driver-class=oracle.jdbc.driver.OracleDriver
jdbc-1.proxool.driver-url=jdbc:oracle:thin:@192.168.0.1:1521:ORCL
jdbc-1.user=gis
jdbc-1.password=1
jdbc-1.proxool.maximum-connection-count=20
jdbc-1.proxool.prototype-count=4
jdbc-1.proxool.house-keeping-test-sql=select sysdate from DUAL
jdbc-1.proxool.verbose=true
jdbc-1.proxool.statistics=10s,1m,1d
jdbc-1.proxool.statistics-log-level=ERROR
//标准版数据库
jdbc-2.proxool.alias=Navtech
jdbc-2.proxool.driver-class=oracle.jdbc.driver.OracleDriver
jdbc-2.proxool.driver-url=jdbc:oracle:thin:@192.168.0.2:1521:orcl
jdbc-2.user=Nav
jdbc-2.password=1
jdbc-2.proxool.maximum-connection-count=20
jdbc-2.proxool.prototype-count=4
jdbc-2.proxool.house-keeping-test-sql=select sysdate from DUAL
jdbc-2.proxool.verbose=true
jdbc-2.proxool.statistics=10s,1m,1d
jdbc-2.proxool.statistics-log-level=ERROR
//计费数据库
jdbc-3.proxool.alias=Fee
jdbc-3.proxool.driver-class=oracle.jdbc.driver.OracleDriver
jdbc-3.proxool.driver-url=jdbc:oracle:thin:@192.168.0.3:1521:ORCL
jdbc-3.user=fee
jdbc-3.password=1
jdbc-3.proxool.maximum-connection-count=20
jdbc-3.proxool.prototype-count=4
jdbc-3.proxool.house-keeping-test-sql=select sysdate from DUAL
jdbc-3.proxool.verbose=true
jdbc-3.proxool.statistics=10s,1m,1d
jdbc-3.proxool.statistics-log-level=ERROR

4、在web.xml文件内加入以下内容：
<servlet>
<servlet-name>ServletConfigurator</servlet-name>
<servlet-class>org.logicalcobwebs.proxool.configuration.ServletConfigurator</servlet-class>
 
 <init-param>
   <param-name>propertyFile</param-name>
   <param-value>WEB-INF/classes/Proxool.properties</param-value>
 </init-param>
 <load-on-startup>1</load-on-startup>
</servlet>
<!-- proxool提供的管理监控工具，可查看当前数据库连接情况。如果运行不成功，请删除本行 -->  
<servlet>
 <servlet-name>Admin</servlet-name>
 <servlet-class>org.logicalcobwebs.proxool.admin.servlet.AdminServlet</servlet-class>
</servlet>

<servlet-mapping>
 <servlet-name>Admin</servlet-name>
 <url-pattern>/Admin</url-pattern>
</servlet-mapping>

5、在调用数据库连接代码：
   Class.forName("org.logicalcobwebs.proxool.ProxoolDriver");
   Connection conn = DriverManager.getConnection("proxool.Fee");

6、利用proxool监控工具查看数据库运行状态。地址：./admin