JSP中的 日历

<form action="second.jsp" method="post">
    	
    	<select name="type">
    		<option value="moto">moto</option>
    		<option value="nokia">nokia</option>
    		
    	</select>
    	
    	<input type="text" name="a" onfocus="new WdatePicker(this)">
    	<input type="text" name="b" onfocus="new WdatePicker(this)">
   
    	
    	
    	
    	<input type="submit" value="ok">
    	
    
    </form>
---------------------------------------B-----------------------------------------------
<%
    	
     	String a=request.getParameter("a");
     
     	String b=request.getParameter("b");
     	try{
     	Class.forName("com.microsoft.jdbc.sqlserver.SQLServerDriver");
     	Connection con=DriverManager.getConnection("jdbc:microsoft:sqlserver://localhost:1433;DatabaseName=shop","sa","sa");
     	Statement stmt=con.createStatement();
     	
		String sql="select * from users where users_date between '"+a+"' and '"+b+"'";
     	
     	ResultSet rs=stmt.executeQuery(sql);
     	while(rs.next()){
     		out.print(rs.getString(2));
     	}
     	}
     	catch(Exception e){
     		e.printStackTrace();
     	}
     	
     	
     	
     	
    %>
  </body>