<%
try{
Connection conn =null;
PreparedStatement pstmt =null;
ResultSet rs=null;
String driverName ="com.sql.jdbc.Driver";
String dbName="user";
String url1="jdbc:sql://localhost/"+dbName;
String url2="?user=sa&password=lx13784429739";
String url3="&Unicode=true&characterEncoding=GB2312";
String url=url1+url2+url3;
Class.forName(driverName);
conn=DriverManager.getConnection(url);
request.setCharacterEncoding("GB2312");
String name=request.getParameter("username");
String pw=request.getParameter("pass");
String sql="select * from user_b where(uname=?andupassword=?) ";
pstmt =conn.prepareStatement(sql);
pstmt.setString(1,name);
pstmt.setString(2,pw);
rs=pstmt.executeQuery();
if(rs.next()){
%><%=name%>:登陆成功!<br><%
}
else{%>
<%=name %>:登录失败!<br><%}
}catch(Exception e)
{%>
出现异常错误!<br><%=e.getMessage()%>
<%}
finally{
if(rs!=null){rs.close();}
if(pstmt!=null){pstmt.close();}
if(conn!=null){conn.close();}
}%>
提示错误:rs cannot be resolved to a variable。。。。
个人感觉是变量定义的问题,希望大神不吝赐教