logingcheck.java

一个毕业设计网络招标系统实现了招标的业务逻辑内含了数据库sql server备份文件

package C03.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 javax.servlet.http.HttpSession;

import C03.BO.*;

public class logingCheck extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public logingCheck() {
		super();
	}

	/**
	 * Destruction of the servlet. <br>
	 */
	public void destroy() {
		super.destroy(); // Just puts "destroy" string in log
		// Put your code here
	}

	/**
	 * The doGet method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to get.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doGet(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
		UserBO cd = new UserBO();
		String username=request.getParameter("addUserName").trim();
		int i = cd.findUserName(username, "0");
		if(i==2)
		{
		
      response.sendRedirect("../adduserinput.jsp?adduser=cz");
		}
		else
		{
		
			response.sendRedirect("../adduserinput.jsp?adduser=ok");
		}
	
	}

	/**
	 * The doPost method of the servlet. <br>
	 * 
	 * This method is called when a form has its tag value method equals to
	 * post.
	 * 
	 * @param request
	 *            the request send by the client to the server
	 * @param response
	 *            the response send by the server to the client
	 * @throws ServletException
	 *             if an error occurred
	 * @throws IOException
	 *             if an error occurred
	 */
	public void doPost(HttpServletRequest request, HttpServletResponse response)
			throws ServletException, IOException {
	
		HttpSession session = request.getSession();
		UserBO cd = new UserBO();
		String ursename = request.getParameter("LoginName").trim();
		String ursepwl = request.getParameter("LoginPw").trim();
		String numCheck=request.getParameter("numCheck").trim();
		
		int i = cd.findUserName(ursename, ursepwl);
		
		response.setContentType("text/html");
		if(session.getAttribute("numCheck").equals(numCheck)){
		if (i==1){
		
			session.setAttribute("username", ursename);
			response.sendRedirect("../userindex.jsp");
		}
			if(i==2){
	//		session.setAttribute("longaction", "userpasserror");
			response.sendRedirect("../userLong.jsp?longaction=userpasserror");
			}
			if(i==0){
	//			session.setAttribute("longaction","usernameerror");
				response.sendRedirect("../userLong.jsp?longaction=usernameerror");
			}
		
		}else {
		
	//		session.setAttribute("longaction", "numerror");
			response.sendRedirect("../userLong.jsp?longaction=numerror");
		}
		}
	

	/**
	 * Initialization of the servlet. <br>
	 * 
	 * @throws ServletException
	 *             if an error occure
	 */
	public void init() throws ServletException {
		// Put your code here
	}

}