adminloginaction.java

网上购物系统struts+spring+hibernate实现

package com.sdi0708.bdifn.bookstore.web.struts.action;

import java.util.ArrayList;
import java.util.List;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;

import com.sdi0708.bdifn.bookstore.service.util.StringUtils;
/**
 * 一个固定的管理员ID与密码,控制器
 * 主要用于演示.
 * @author soft01
 *
 */
public class AdminLoginAction extends BaseAction {
	
	public ActionForward login(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		String adminId = request.getParameter("adminId");
		String adminPasswd = request.getParameter("adminPasswd");
		List<String> errors = new ArrayList<String>();
		if(StringUtils.isEmpty(adminId) || StringUtils.isEmpty(adminPasswd)) {
			//如果没有填写管理员用户名或密码,则把信息加入错误信息中
			errors.add("admin's id and password is required.");
		} else if(!"admin".equals(adminId)) {
			//如果用户名不正确,加入错误信息
			errors.add("admin's id is error.");
		} else if(!"admin".equals(adminPasswd)) {
			//如果密码不正确,加入错误信息
			errors.add("admin's password is error.");
		}
		if(errors.size() > 0) {
			//如果发生了错误信息.则返回输入页面
			request.setAttribute("errors", errors);
			return  mapping.getInputForward();
		} 
		request.getSession().setAttribute("admin", "admin");
		//否则信息正确
		return	mapping.findForward("success");
	}
	
	public ActionForward logout(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		//取得session
		HttpSession session = request.getSession();
		//删除用户属性
		session.removeAttribute("admin");
		//使会话失效
		session.invalidate();
		return mapping.findForward("success");
	}
	
}