login.java

该系统可以实现邮件的收发

package com.action;

import java.io.IOException;
import java.util.List;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import com.dao.impl.NodeDaoImpl;
import com.domain.Staff;
import com.service.NodeManager;
import com.service.StaffManager;
import com.service.impl.NodeManagerImpl;
import com.service.impl.StaffManagerImpl;

public class Login extends HttpServlet {

	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doPost(request,response);
	}

	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		String name = request.getParameter("userName");
		String password = request.getParameter("userPassword");
	
		Staff staff = new Staff();
		StaffManager manager = new StaffManagerImpl();
		staff = manager.staffLogin(name);
		
		RequestDispatcher rd = null;
		
		if(staff == null){
			request.setAttribute("kk","没有这个用户");
			rd = request.getRequestDispatcher("/userLogin.jsp");
			rd.forward(request, response);
		}else {
			if(password.equals(staff.getPassword())){
				
				//查权限表，查出此人权限，进入页面
				NodeManager mana = new NodeManagerImpl();
				List list = mana.searchNodeNameByStaffName(name);
				NodeDaoImpl node = new NodeDaoImpl();
				String ss = node.createTree(list, "d");		//获取NODE结点信息，按照信息生成DTree
				String kk = node.getPositionId(name);	

				HttpSession hs = request.getSession();
				hs.setAttribute("ss", ss);
				hs.setAttribute("kk", kk);
				rd = request.getRequestDispatcher("/index.jsp");
				rd.forward(request, response);				
			}else{
				request.setAttribute("kk", "输入密码错误");
				rd = request.getRequestDispatcher("/userLogin.jsp");
				rd.forward(request, response);
			}
		}
	}
}