manageloginservlet.java

网上购物系统

package com.cric.onlineshopclothes.servlet;

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 com.cric.onlineshopclothes.dao.ManageLoginDAO;
import com.cric.onlineshopclothes.javabean.User;

public class ManageLoginServlet extends HttpServlet {

	
	public ManageLoginServlet() {
		super();
	}

	
	public void destroy() {
		super.destroy(); 
	}

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

		response.setContentType("text/html;cgarset=utf-8");
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		
		
		PrintWriter out = response.getWriter();
		
	}

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

		response.setContentType("text/html;cgarset=utf-8");
		request.setCharacterEncoding("utf-8");
		response.setCharacterEncoding("utf-8");
		
		PrintWriter out = response.getWriter();
		
		//获得页面数据
		ManageLoginDAO loginDAO=new ManageLoginDAO();
		User user=loginDAO.getLoginParam(request,response);
		String str=user.getUserName();
		String str1=user.getPassWord();
		out.println(str);
		out.println(str1);
		//验证信息ss
		boolean flag=loginDAO.checkLoginParam(user);
		out.print(flag);
		if(flag){
			request.setAttribute("userName",user.getUserName());//写入session
			response.sendRedirect("admin/main.jsp");
		}else{
		  request.setAttribute("errors", "登录失败，请重新登录！");
		  request.getRequestDispatcher("admin/login.jsp").forward(request, response);
		}
	}
		
	
	public void init() throws ServletException {
		// Put your code here
	}

}