regcheck.jsp

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<%@ page contentType="text/html; charset=gb2312" language="java" %>
<%@ page import="java.sql.*,com.netshop.*" %>
<jsp:useBean scope="page" id="user" class="com.netshop.user" />
<% 
	String userName = "";
	int sysRole = 1;
	
	boolean isExist = true;
	
	userName = request.getParameter("userName");
	sysRole = Integer.parseInt(request.getParameter("userType"));    


	isExist = user.isExist(userName);

	if(isExist)
	{
		out.println("<script language=javascript>alert('该用户名已经存在！');window.history.go(-1);</script>");
	}
	else
	{
		session.setAttribute("userName",userName);
		switch(sysRole)
		{
			case 1: 
				
					response.sendRedirect("regUser.jsp"); 						
			break;
			case 2:  
				
					response.sendRedirect("regMerchant.jsp"); 
									
			break;
			default:
			   response.sendRedirect("regero.jsp"); 
			   break;
		
		}
	}
%>