loginservlet.java

新闻发布系统

package com.mynews;

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

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;

public class LoginServlet extends HttpServlet {

	
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		response.setContentType("text/html");
		PrintWriter out = response.getWriter();
		HttpSession session = request.getSession();
		session.setAttribute("access", "false");
		String name = request.getParameter("name");
		String password = request.getParameter("password");
		users user = new users();
		user.setName(name);
		user.setPassword(password);
		users u = user.isExists();
		if (u!=null){
			session.setAttribute("access", "true");  //用于判断登录人是否通过了登录页面
			session.setAttribute("id", u.getId());  //设置登录人的编号
			session.setAttribute("name", u.getName());  //设置登录人的姓名
			session.setAttribute("grant", u.getGrant());  //设置登录人的权限
			session.setAttribute("password", u.getPassword());
			session.setAttribute("email", u.getEmail());
			RequestDispatcher dis = request.getRequestDispatcher("main.jsp");
			dis.forward(request, response);
		}else{
			out.print("登录失败");
			out.print("<br><a href='login.html'>重新登录</a>");
		}
		out.close();
	}

	
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		this.doGet(request, response);
	}

}