loginadmin.java

小型简单的旅馆预订系统. 客户:预定,更改,撤销,会员积分累积,查询预定,会员. 后台:会员更改,房间更改,预定更改,预定信息统计.

package servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

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

/**
 * Servlet implementation class for Servlet: login
 *
 */
 public class loginAdmin extends javax.servlet.http.HttpServlet implements javax.servlet.Servlet {
   static final long serialVersionUID = 1L;
   
    /* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#HttpServlet()
	 */
	public loginAdmin() {
		super();
	} 
	
	/* (non-Javadoc)
	 * @see javax.servlet.Servlet#destroy()
	 */
	public void destroy() {
		// TODO Auto-generated method stub
		super.destroy();
	}   	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
	}  	
	
	/* (non-Java-doc)
	 * @see javax.servlet.http.HttpServlet#doPost(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		response.setContentType("text/html;");
        PrintWriter out=response.getWriter();
        HttpSession session=request.getSession();
        String score="0",disc="1.0";
        String sco="0";
        int sc=0;
        String username=request.getParameter("username");
        String password=request.getParameter("adminPass"); //get request password
        String systempass="default";
		userBean uber = (userBean)session.getAttribute("uber"); //get session bean
		if (uber == null) { uber = new userBean(); }//set a new bean object
		else ;
		insert in =new insert();
		String query="select type from User where username='"+username+"'";
		String typeCheck=in.getQuery(query, "type");
		if (!typeCheck.equals("0"))
		{
			response.sendRedirect("error.jsp");
		}
		else
		{
			query="select admin_pass from System";
			systempass=in.getQuery(query, "admin_pass");
			if (password.equals(systempass))
			{
				response.sendRedirect("adminZone.jsp");
				
			}
			else response.sendRedirect("error.jsp");
		}
       
        
	}   	  	  
	
	/* (non-Javadoc)
	 * @see javax.servlet.GenericServlet#init()
	 */
	public void init() throws ServletException {
		// TODO Auto-generated method stub
		super.init();
	}   
}