监听器优先于数据库连接池运行

Spring3 下使用proxool做连接池的时候出现异常

ERROR 2010-07-06 12:27:10,328 [org.logicalcobwebs.proxool.ProxoolDriver] [Problem]
org.logicalcobwebs.proxool.ProxoolException: Attempt to refer to a unregistered pool by its alias 'ums'
at org.logicalcobwebs.proxool.ConnectionPoolDefinition.doChange(ConnectionPoolDefinition.java:246)
at org.logicalcobwebs.proxool.ConnectionPoolDefinition.<init>(ConnectionPoolDefinition.java:143)
at org.logicalcobwebs.proxool.ProxoolFacade.registerConnectionPool(ProxoolFacade.java:96)
at org.logicalcobwebs.proxool.ProxoolDriver.connect(ProxoolDriver.java:77)
at java.sql.DriverManager.getConnection(DriverManager.java:582)
at java.sql.DriverManager.getConnection(DriverManager.java:154)



原因：

org.springframework.web.context.ContextLoaderListener 加载先于proxool



解决办法：将proxool 也改成listener加载并先于spring

由于proxool 还没有listener的实现，所以自己写了一个以listener方式加载proxool 的实现的补丁proxool-listenerCfg.jar



下载补丁修改web.xml



Xml代码
<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/proxool.xml</param-value>     
    </init-param>     
    <load-on-startup>1</load-on-startup>     
</servlet>   


改为:

Xml代码
<context-param> 
    <param-name>proxoolConfigLocation</param-name> 
    <param-value>WEB-INF/proxool.xml</param-value> 
</context-param> 
<listener> 
    <listener-class>org.logicalcobwebs.proxool.configuration.ListenerConfigurator</listener-class> 
</listener> 
<listener> 
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> 
     </listener>