loginservlet.java

财务管理系统

package org.fms.action;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;

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 org.fms.dao.ManagerDao;
import org.fms.model.ManagerInfo;
import org.fms.util.DBHelper;

public class LoginServlet extends HttpServlet {

	/**
	 * The doGet method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		
		Connection conn=DBHelper.getConnection();
		String managerName = request.getParameter("managerName");
		String managerPWD = request.getParameter("managerPWD");
		ManagerDao mdao = new ManagerDao();
		mdao.setConn(conn);
		ManagerInfo minfo = mdao.getManagerbyNameandPWD(managerName, managerPWD);
		if(minfo==null){
			request.setAttribute("action", "error");
			request.getRequestDispatcher("loginError.jsp").forward(request, response);
		}else{
			if(minfo.getIsDelete()==0){
				request.setAttribute("action", "error2");
				request.getRequestDispatcher("loginError.jsp").forward(request, response);
			}else{
				HttpSession session = request.getSession();
				session.setAttribute("info", minfo);
				boolean flag = mdao.addLoginNum(minfo.getManagerID(), request.getRemoteAddr());
				if(flag){
					request.getRequestDispatcher("main.jsp").forward(request, response);
				}
			}
		}
		mdao.closePSandRS();
		DBHelper.closeConnection();
		
		out.flush();
		out.close();
	}

	/**
	 * The doPost method of the servlet. <br>
	 *
	 * This method is called when a form has its tag value method equals to post.
	 * 
	 * @param request the request send by the client to the server
	 * @param response the response send by the server to the client
	 * @throws ServletException if an error occurred
	 * @throws IOException if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {

		doGet(request, response);
	}

}