急！j2sdk和tomcat环境配置出错！！！

[anycon]

运行<%out.println("hello!");%>
无问题，但运行有数据库连接的网页时出错
提示如下,是数据库问题吗？（我的是sql server)


type Exception report

message

description The server encountered an internal error () that prevented it from fulfilling this request.

exception

org.apache.jasper.JasperException
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:254)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:295)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:241)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:247)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:193)
at promoChina.filters.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:170)