关于JSP数据库连接的问题？

我的连接程序如下：
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<%@page contentType="text/html;charset=GB2312"%>
<%Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver").newInstance();
String url="jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=questionnaire";
Connection con= DriverManager.getConnection(url,"sa","801208161");
Statement smt=con.createStatement(ResultSet.TYPE_SCROLL_SENSITIVE,ResultSet.CONCUR_UPDATABLE);
ResultSet rs;
String sql;
%>
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以下是出错信息：
An error occurred between lines: 1 and 7 in the jsp file: /opendata.jsp
Generated servlet error:
D: omcatworklocalhost_opendata$jsp.java:56: Class org.apache.jsp.Connection not found.
                Connection con= DriverManager.getConnection(url,"sa","801208161");
                ^
An error occurred between lines: 1 and 7 in the jsp file: /opendata.jsp
Generated servlet error:
D: omcatworklocalhost_opendata$jsp.java:56: Undefined variable or class name: DriverManager
                Connection con= DriverManager.getConnection(url,"sa","801208161");
                                ^
An error occurred between lines: 1 and 7 in the jsp file: /opendata.jsp