try{
            PrintWriter pw = res.getWriter();
            //访问数据库进行读取数据
            Class.forName("com.microsoft.sqlserver.jdbc.SQLServerDriver");
            String dbURL = "jdbc:sqlserver://127.0.0.1:1433;integratedSecurity=true;DatabaseName=zeng"; 
            ct = DriverManager.getConnection(dbURL);
            ps = ct.prepareStatement("select * from memberMag;");
            rs = ps.executeQuery();
            while(rs.next()){
                pw.println("ID:" + rs.getInt(1));
                pw.println("userName:" + rs.getString(2));
                pw.println("password:" + rs.getString(3));
                pw.println("mail:" + rs.getString(4));
                pw.println("userLevel:" + rs.getString(5));
                pw.println("<br>");
                pw.println("<hr>");
            }
        }catch(Exception ee){
            ee.printStackTrace();
        }finally{
            try{
                rs.close();
                ps.close();
                ct.close();
            }catch(Exception ee){
                ee.printStackTrace();
            }
        }