loginservlet.java

java oracle 示例 prefirst.rar

package cn.com.freeborders.sys;

import java.io.IOException;
import java.util.ArrayList;

import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;


 public class LoginServlet extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
    
	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	public LoginServlet() {
		super();
	}   	
	
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		HttpSession session = request.getSession();
		String username = request.getParameter("username");
		String password = request.getParameter("password");
		ArrayList sysusers = LoginManager.getSysuser(username,password);
		if (sysusers.size()>0) {
			Sysuser sysuser = (Sysuser) sysusers.get(0);
			session.setAttribute("sysuser",sysuser);
			RequestDispatcher requestDispatcher=request.getRequestDispatcher("/sys/loginsuccess.jsp");
			requestDispatcher.forward(request,response);
		} else {
			session.setAttribute("error","login failure!");
			RequestDispatcher requestDispatcher=request.getRequestDispatcher("/sys/failure.jsp");
			requestDispatcher.forward(request,response);
		}
	}  	
	
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		doGet(request,response);
	}   	  	    
}