proxool连接sqlserver出现类似假死现象的问题

在项目中通过proxool配置jdbc连接sqlserver。 
配置文件如下： proxool.xml <?xml version="1.0" encoding="ISO-8859-1"?> 
<something-else-entirely> 
  <proxool> 
    <alias>pool</alias> 
    <driver-url>jdbc:sqlserver://localhost:1433;DatabaseName=xibowork</driver-url> 
    <driver-class>com.microsoft.sqlserver.jdbc.SQLServerDriver</driver-class> 
    <driver-properties> 
      <property name="user" value="sa"/> 
      <property name="password" value="密码"/> 
    </driver-properties> 
    <maximum-connection-count>1000</maximum-connection-count> 
    <house-keeping-test-sql>select CURRENT_DATE</house-keeping-test-sql> 
  </proxool> 
</something-else-entirely> 
web.xml 
<?xml version="1.0" encoding="UTF-8"?> 
<web-app version="2.5" 
xmlns="http://java.sun.com/xml/ns/javaee" 
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee 
http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"> 
  <display-name></display-name>
  <welcome-file-list> 
    <welcome-file>index.jsp</welcome-file> 
  </welcome-file-list> 
  <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> 
  
  <!-- zh-cn encoding -->  
    <filter>  
      <filter-name>struts-cleanup</filter-name> 
      <filter-class>org.apache.struts2.dispatcher.ActionContextCleanUp</filter-class> 
    </filter> 
<filter-mapping> 
<filter-name>struts-cleanup</filter-name> 
<url-pattern>/*</url-pattern> 
</filter-mapping> 
  
  <filter> 
  <filter-name>struts2</filter-name> 
  <filter-class> 
  org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter 
  </filter-class> 
  </filter> 
  <filter-mapping> 
  <filter-name>struts2</filter-name> 
  <url-pattern>*.do</url-pattern> 
  </filter-mapping> 
</web-app> 
最后通过 
Class.forName( "org.logicalcobwebs.proxool.ProxoolDriver" ); 
conn = DriverManager.getConnection("proxool.pool"); 
获取连接，都是按照常规来配置的，myeclipse不报错。问题就来了。 
在运行到conn = DriverManager.getConnection("proxool.pool");即不报错也无法取得conn，就是说类似在这句话上假死了一样， 
求大牛解惑，急