jsp连接数据库出的问题
我连接的是sqlserver2000.我的程序中数据库连接的代码如下:
String   MapID   =   request.getParameter( "MapID ");
    String   MapFileName= " ";
    int   NumOfWarehouses=0;
    System.out.println(MapID);
    DBConnect.dbconnect   =   new   DBConnect();
    boolean   isconnect   =   dbconnect.connect();
出错的提示如下   ：
HTTP   Status   500   -  

--------------------------------------------

type   Exception   report

message  

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

exception  

org.apache.jasper.JasperException:   Unable   to   compile   class   for   JSP

Generated   servlet   error:
F:\Tomcat   5.0\work\Catalina\localhost\_\org\apache\jsp\wmsgis\wmsgis\mapinfo_jsp.java:7:   软件包   DB   不存在
import   DB.*;
^


An   error   occurred   at   line:   23   in   the   jsp   file:   /wmsgis/wmsgis/mapinfo.jsp
Generated   servlet   error:
F:\Tomcat   5.0\work\Catalina\localhost\_\org\apache\jsp\wmsgis\wmsgis\mapinfo_jsp.java:71:   找不到符号
符号：   类   DBConnect
位置：   类   org.apache.jsp.wmsgis.wmsgis.mapinfo_jsp
    DBConnect   dbconnect   =   new   DBConnect();
    ^


An   error   occurred   at   line:   23   in   the   jsp   file:   /wmsgis/wmsgis/mapinfo.jsp
Generated   servlet   error:
F:\Tomcat   5.0\work\Catalina\localhost\_\org\apache\jsp\wmsgis\wmsgis\mapinfo_jsp.java:71:   找不到符号
符号：   类   DBConnect
位置：   类   org.apache.jsp.wmsgis.wmsgis.mapinfo_jsp
    DBConnect   dbconnect   =   new   DBConnect();
                                                        ^
3   错误


org.apache.jasper.compiler.DefaultErrorHandler.javacError(DefaultErrorHandler.java:84)
org.apache.jasper.compiler.ErrorDispatcher.javacError(ErrorDispatcher.java:332)
org.apache.jasper.compiler.Compiler.generateClass(Compiler.java:412)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:472)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:451)
org.apache.jasper.compiler.Compiler.compile(Compiler.java:439)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:511)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:295)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:292)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:236)
javax.servlet.http.HttpServlet.service(HttpServlet.java:802)


note   The   full   stack   trace   of   the   root   cause   is   available   in   the   Apache   Tomcat/5.0.28   logs.



------解决方案--------------------
DB这个包不存在.可能是你引包的时候包名出现错误.DBConnect该类没有引进来.你好好的检查DBConnect存在的位置.重新引入DBConnect试试