急》》》》Struts数据源的问题

resin服务器启动的时候报的错误： 严重: Initializing application data source java:comp/localhost 
org.apache.commons.dbcp.SQLNestedException: Cannot create PoolableConnectionFact 
ory (到主机  的 TCP/IP 连接失败。 java.net.ConnectException: Connection refused: 
connect) 
        at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou 
rce.java:855) 
        at org.apache.commons.dbcp.BasicDataSource.setLogWriter(BasicDataSource. 
java:598) 
        at org.apache.struts.action.ActionServlet.initModuleDataSources(ActionSe 
rvlet.java:808) 
        at org.apache.struts.action.ActionServlet.init(ActionServlet.java:335) 
        at javax.servlet.GenericServlet.init(GenericServlet.java:82) 
        at com.caucho.server.http.Application.createServlet(Application.java:310 
9) 
        at com.caucho.server.http.Application.loadServlet(Application.java:3060)         at com.caucho.server.http.Application.initServlets(Application.java:1921 
) 
        at com.caucho.server.http.Application.init(Application.java:1847) 
        at com.caucho.server.http.VirtualHost.init(VirtualHost.java:728) 
        at com.caucho.server.http.ServletServer.initHosts(ServletServer.java:874 
) 
        at com.caucho.server.http.ServletServer.initInternal(ServletServer.java: 
719) 
        at com.caucho.server.http.ServletServer.init(ServletServer.java:530) 
        at com.caucho.server.http.ResinServer.init(ResinServer.java:393) 
        at com.caucho.server.http.ResinServer.main(ResinServer.java:1154) 
        at com.caucho.server.http.HttpServer.main(HttpServer.java:103) 
Caused by: com.microsoft.sqlserver.jdbc.SQLServerException: 到主机  的 TCP/IP 连 
接失败。 java.net.ConnectException: Connection refused: connect 
        at com.microsoft.sqlserver.jdbc.SQLServerException.makeFromDriverError(U 
nknown Source) 
        at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Sour 
ce) 
        at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source) 
        at org.apache.commons.dbcp.DriverConnectionFactory.createConnection(Driv 
erConnectionFactory.java:37) 
        at org.apache.commons.dbcp.PoolableConnectionFactory.makeObject(Poolable 
ConnectionFactory.java:290) 
        at org.apache.commons.dbcp.BasicDataSource.validateConnectionFactory(Bas 
icDataSource.java:877) 
        at org.apache.commons.dbcp.BasicDataSource.createDataSource(BasicDataSou 
rce.java:851) 
        ... 15 more 
struts.config的数据源配置： 
    <data-source key="java:comp/localhost" type="org.apache.commons.dbcp.BasicDataSource"> 
    <set-property property="driverClassName" value="com.microsoft.sqlserver.jdbc.SQLServerDriver"/> 
    <set-property property="url" value="jdbc:sqlserver://localhost:1433;DatabaseName=Company"/> 
    <set-property property="username" value="sa"/> 
    <set-property property="password" value="kaka"/> 
    <set-property property="maxActive" value="5"/> 
    <set-property property="maxIdle" value="3"/> 
    <set-property property="maxWait" value="100"/> 
    <set-property property="defaultAutoCommit" value="true"/> 
    <set-property property="defaultReadOnly" value="false"/> 
    </data-source> 请各位帮忙看看是什么错误呢？？  设置SQLEXPRESS服务器: 的设置都按照楼主的样子设置了！