managerloginservlet.java

一个仿造淘宝的jsp网站。功能比较完善

package com.jc.taobao.gjj.action;

import java.io.IOException;
import java.io.PrintWriter;

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.jc.taobao.gjj.entity.UserInfo;
import com.jc.taobao.gjj.logic.UserInfoBean;

public class ManagerLoginServlet extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public ManagerLoginServlet() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * 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 {

		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		String username=request.getParameter("adminname");
		String password=request.getParameter("adminpassword");
		String yanzhengma=request.getParameter("adminyanzhengma");
		UserInfoBean userbean=new UserInfoBean();
		UserInfo user=new UserInfo();
		user.setUsername(username);
		user.setUserpwd(password);
		String Ran=request.getSession().getAttribute("random").toString();
		if(Ran.equals(yanzhengma)){
		if(userbean.getLogin(user)>0)
		{
			request.getSession().setAttribute("loginusername", username);
			out.print("<script>alert('"+username+"管理员你好，欢迎登陆登陆成功');</script>");
			response.sendRedirect("/taobao/ManagerSystem.jsp");
		}else
		{
			out.print("<script>alert('对不起,你输入的信息有误,不能登陆!');window.history.go(-1);</script>");
		}
		}else
		{   
			out.print("<script>alert('验证码错误！');window.history.go(-1);</script>");
		}
	}

	/**
	 * Initialization of the servlet. <br>
	 *
	 * @throws ServletException if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}