checkloginservlet.java

来自「J2EE技术开发的新闻发布系统。包括：分类管理、新闻管理、用户管理等基本功能.采」· Java 代码 · 共 70 行

/*
 *
 * 
 * 
 */
package util;
import java.io.*;
import java.util.*;
import javax.servlet.*;
import javax.servlet.http.*;

import news.*;
import javax.ejb.*;
import javax.naming.*;
import javax.rmi.PortableRemoteObject;
import java.rmi.RemoteException;



/**
 * This is a simple example of an HTTP Servlet.  It responds to the GET
 * method of the HTTP protocol. 
 */
public class CheckLoginServlet extends HttpServlet {
	
		private News myNews = null;
   public void init() throws ServletException {
       
       try {
         InitialContext ic = new InitialContext();
         Object objref = ic.lookup("java:comp/env/ejb/TheNews");
         NewsHome home = (NewsHome)PortableRemoteObject.narrow(objref,NewsHome.class);
         myNews = home.create();
		 
      } catch (RemoteException ex) {
            System.out.println("Couldn't create news bean."+ ex.getMessage());
      } catch (CreateException ex) {
            System.out.println("Couldn't create news bean."+ ex.getMessage());
      } catch (NamingException ex) {
            System.out.println("Unable to lookup home: "+ "TheNews "+ ex.getMessage());
      } catch(Exception ee){}
   }

   public void destroy() {
         myNews = null;
   }

      
   public void doPost (HttpServletRequest request,HttpServletResponse response)
        throws ServletException, IOException {
        PrintWriter out=response.getWriter(); 
        String id=null;
        String password=null;
        HttpSession session = request.getSession(true);
        response.setContentType("text/html;charset=gb2312");
        
				id=request.getParameter("id");
				password=request.getParameter("password");
				if( myNews.checkLogin(id,password) ){
					session.setAttribute("isLogin","ok");
					response.sendRedirect("/news/admin/admin.jsp");
				}
				else
					out.println("<script>alert('登陆失败');history.back();</Script>");
					//response.sendRedirect("/news/admin/login.htm");
				
		}
    
}