关于Druid配置问题 - 连接池报错

我配置了web.xml

<filter>
    <filter-name>DruidWebStatFilter</filter-name>
    <filter-class>com.alibaba.druid.support.http.WebStatFilter</filter-class>
    <init-param>
        <param-name>exclusions</param-name>
        <param-value>*.js,*.gif,*.jpg,*.png,*.css,*.ico,/druid/*</param-value>
    </init-param>
    <init-param>
	    <param-name>profileEnable</param-name>
	    <param-value>true</param-value>
	</init-param>
  </filter>
  <filter-mapping>
    <filter-name>DruidWebStatFilter</filter-name>
    <url-pattern>/*</url-pattern>
  </filter-mapping>
	<servlet>
      <servlet-name>DruidStatView</servlet-name>
      <servlet-class>com.alibaba.druid.support.http.StatViewServlet</servlet-class>
  </servlet>
  <servlet-mapping>
      <servlet-name>DruidStatView</servlet-name>
      <url-pattern>/druid/*</url-pattern>
  </servlet-mapping>

对数据源做了如下配置

dataSource.driverClassName=com.alibaba.druid.proxy.DruidDriver
dataSource.url=jdbc:wrap-jdbc:filters=stat:jdbc:oracle:thin:@127.0.0.1:1521\:orcl
dataSource.username=test
dataSource.password=test
dataSource.maxActive=12

可是sql中的SQL Stat无数据，求指教！