checkaccountaction.java

一个java写的网上购物系统

/*
 * Generated by MyEclipse Struts
 * Template path: templates/java/JavaClass.vtl
 */
package com.hb.myshop.struts.action;

import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.hb.myshop.idao.IMemberDao;
import com.hb.myshop.po.Member;

/** 
 * MyEclipse Struts
 * Creation date: 10-14-2008
 * 
 * XDoclet definition:
 * @struts.action validate="true"
 */
public class CheckaccountAction extends Action {
	private IMemberDao mdao;

	
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws IOException {
		response.setCharacterEncoding("utf-8");
        String account=request.getParameter("userName");
        if(account==null)
        {
        	account="";
        }
        PrintWriter out=response.getWriter();
        if(account.equals(""))
        {
        	out.print("<font color=#ff0000>用户名输入不能为空</font>");
        }
        else if(account.length()<6||account.length()>20)
        {
        	out.print("<font color=#ff0000>用户名必须是6-20位，请重新输入！</font>");
        }
        else 
        {
        	Member mm=this.getMdao().selectMember(account);
        	System.out.println("qq1"+account);
        	if(mm==null)
        	{
        		System.out.println("qq"+account);
        		out.print("<font color=#00ff00>此用户名还没被使用，请继续！</font>");
        	}
        	else
        	{
        		out.print("<font color=#ff0000>该用户名已经使用，请重新输入！</font>");
        	}
        }
		return null;
	}


	public IMemberDao getMdao() {
		return mdao;
	}


	public void setMdao(IMemberDao mdao) {
		this.mdao = mdao;
	}
}