loginaction.java

简易的java问答系统

package cn.netjava.action;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import cn.netjava.factory.*;
import cn.netjava.pojo.*;

public class LoginAction implements Action {

	/**
	 * 登录动作处理类
	 */
	public String execute(HttpServletRequest request,
			HttpServletResponse response) {

		String name = request.getParameter("name");
		String password = request.getParameter("password");

		boolean validate = PersonDAOFactory.getPersonDAOInstance().isValidate(
				name, password);
		String path = "";
		
		if (validate) {
			path = "/DisplayAllAction.netjava";
			Person p = PersonDAOFactory.getPersonDAOInstance()
					.queryByName(name);
			request.getSession(true).setAttribute("userObj", p);
		} else {
			path = "/login.jsp";
			request.setAttribute("error_msg", "用户名密码不正确");
		}

		return path;
	}

}