loginaction.java

学生选课 用java和sql server 2000用asp完成的学生选课管理系统

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

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.xuanke.actionform.LoginForm;
import com.xuanke.dao.Dao;

/**
 * MyEclipse Struts Creation date: 12-30-2007
 * 
 * XDoclet definition:
 * 
 * @struts.action path="/login" name="loginForm" input="/login.jsp"
 *                scope="request" validate="true"
 * @struts.action-forward name="student" path="/student.jsp"
 * @struts.action-forward name="error" path="/login.jsp"
 * @struts.action-forward name="admin" path="/admin.jsp"
 */
public class LoginAction extends Action {
	/*
	 * Generated Methods
	 */

	/**
	 * Method execute
	 * 
	 * @param mapping
	 * @param form
	 * @param request
	 * @param response
	 * @return ActionForward
	 */
	public ActionForward execute(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response) {
		LoginForm loginForm = (LoginForm) form;// TODO Auto-generated method
		// stub
		String username = loginForm.getUsername();
		String password = loginForm.getPassword();
		Dao dao = new Dao();
		request.getSession().setAttribute("ccu", "abc");// 加锁
		if (dao.userlogin(username, password)) {

			
			int a=dao.getstage(username);// 取得用户的等级
			request.getSession().setAttribute("username", username);
			request.getSession().setAttribute("userstage", a);// 将这个用户等级放在令牌当中，以后使用
             dao.onclose();
			if (a==1) {
				return mapping.findForward("admin");
			} else {
				return mapping.findForward("student");
			}

		} else
			return mapping.findForward("error");

	}
}