systemaction.java

这段代码是用struts实现的客户管理系统

package com.tarena.action;

import javax.servlet.http.Cookie;
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 org.apache.struts.actions.MappingDispatchAction;

import com.tarena.biz.UserBiz;
import com.tarena.entity.User;
import com.tarena.form.UserForm;

public class SystemAction extends MappingDispatchAction {
	private UserBiz userBiz = new UserBiz();

	public ActionForward login(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		ActionForward forward = mapping.findForward("login");
		UserForm userForm = (UserForm) form;
		User u = userForm.getUser();
		User user = userBiz.find(u.getUserName(), u.getPassword());
		if (user != null) {
			HttpSession session = request.getSession();
			session.setAttribute("user", user);
			if (userForm.isRememberCookie()) {
				Cookie userNameCookie = new Cookie("userName", user
						.getUserName());
				userNameCookie.setMaxAge(60 * 60 * 24 * 365);
				userNameCookie.setPath("/ums");

				Cookie passwordCookie = new Cookie("password", user
						.getPassword());
				passwordCookie.setPath("/ums");
				passwordCookie.setMaxAge(60 * 60 * 24 * 365);

				response.addCookie(userNameCookie);
				response.addCookie(passwordCookie);
			}
			forward = mapping.findForward("find");
		}

		return forward;
	}

	public ActionForward logout(ActionMapping mapping, ActionForm form,
			HttpServletRequest request, HttpServletResponse response)
			throws Exception {
		HttpSession session = request.getSession(false);
		if (session != null) {
			session.invalidate();
		}
		return mapping.findForward("login");
	}
}