在这里除了按SQL Server 2k for JDBC HTML Help中设置classpath外，另还需将Microsoft SQL Server 2000 Driver for JDBC\lib\下的3个jar文件拷贝到tomcat\common\lib\里，否则可能出现如下错误提示：
type Exception report
message
description The server encountered an internal error () that prevented it from fulfilling this request.
exception
javax.servlet.ServletException: com.microsoft.jdbc.sqlserver.SQLServerDriver org.apache.jasper.runtime.PageContextImpl.doHandlePageException(PageContextImpl.java:862) org.apache.jasper.runtime.PageContextImpl.handlePageException(PageContextImpl.java:795) org.apache.jsp.testdata_jsp._jspService(testdata_jsp.java:79) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
root cause
java.lang.ClassNotFoundException: com.microsoft.jdbc.sqlserver.SQLServerDriver org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1365) org.apache.catalina.loader.WebappClassLoader.loadClass(WebappClassLoader.java:1212) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:184) org.apache.jasper.servlet.JasperLoader.loadClass(JasperLoader.java:110) java.lang.ClassLoader.loadClassInternal(ClassLoader.java:302) java.lang.Class.forName0(Native Method) java.lang.Class.forName(Class.java:141) org.apache.jsp.testdata_jsp._jspService(testdata_jsp.java:48) org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:133) javax.servlet.http.HttpServlet.service(HttpServlet.java:856) org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:311) org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:301) org.apache.jasper.servlet.JspServlet.service(JspServlet.java:248) javax.servlet.http.HttpServlet.service(HttpServlet.java:856)
note The full stack trace of the root cause is available in the Tomcat logs.
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