我调试一个jsp+tomcat5.0+sqlsever2000程序 出现login.do后显示空白 在线等
我调试一个jsp+tomcat5.0+sqlsever2000程序   出现login.do后显示空白   刚学习jsp   不知道那里出错了请大虾帮忙  
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web.xml
<?xml   version= "1.0 "   encoding= "ISO-8859-1 "?>

<!DOCTYPE   web-app   PUBLIC
    "-//Sun   Microsystems,   Inc.//DTD   Web   Application   2.3//EN "
    "http://java.sun.com/dtd/web-app_2_3.dtd ">

<web-app>  

<display-name> MediaStore </display-name>
<description> MediaStore </description>

<context-param>
<param-name> dburl </param-name>
<param-value> jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mediastore </param-value>
</context-param>
<context-param>
<param-name> user </param-name>
<param-value> sa </param-value>
</context-param>
<context-param>
<param-name> password </param-name>
<param-value> 123456 </param-value>
</context-param>

<servlet>
<servlet-name> action </servlet-name>
<servlet-class> org.apache.struts.action.ActionServlet </servlet-class>
<init-param>
<param-name> config </param-name>
<param-value> /WEB-INF/struts-config.xml </param-value>
</init-param>
<load-on-startup> 1 </load-on-startup>
</servlet>

<!--   Standard   Action   Servlet   Mapping   -->
<servlet-mapping>
<servlet-name> action </servlet-name>
<url-pattern> *.do </url-pattern>
</servlet-mapping>


<session-config>
<session-timeout> 60 </session-timeout>
</session-config>


<!--   The   Usual   Welcome   File   List   -->
<welcome-file-list>
<welcome-file> index.htm </welcome-file>
                               
</welcome-file-list>

</web-app>
tomcat日志
username:admin   password:
ConnStr:jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mediastore;user=sa;password=123456;
---new   DBConnection---
---conn   =   dbc.getDBConnection();---
strSQL:SELECT   *   FROM   TabUserInfo   WHERE   UserName   =   'admin '   and   Password   =   ' ';
用户名和密码正确
strSQL:UPDATE   TabUserInfo   SET   Status   =   1,   StatusChangeTime   =   getdate(),   LastLoginTime   =   getdate()   WHERE   UserID   =   0;
---End:   LoginAction::execute(actionContext)---
---Start:   LoginSuccessPage::show(actionContext)---
ConnStr:jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mediastore;user=sa;password=123456;
ConnStr:jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mediastore;user=sa;password=123456;
lastNumOfMiSecon:1169568000000
curNumOfMiSecon:1169613423953
---End:   LoginSuccessPage::show(actionContext)---
forward.getPath:/template/LoginSuccess.jsp
forward.getName:LoginSuccess
ConnStr:jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=mediastore;us