login.java

新闻发布系统

package com.servlet;

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

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

import com.Bean.UserInfo;

public class Login extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Login() {
		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 {

		this.doPost(request, response);
	}

	/**
	 * 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 {

		response.setContentType("text/html");
		request.setCharacterEncoding("gbk");
		response.setCharacterEncoding("gbk");
		PrintWriter out = response.getWriter();
		UserInfo user=new UserInfo();
		String name=request.getParameter("userName");
		String pwd=request.getParameter("userPassword");
		int q=Integer.parseInt(request.getParameter("quanxian"));
		
		user.setUserName(name);
		user.setUserPassword(pwd);
		user.setQuanxianID(q);
		ArrayList arr=new ArrayList();
		arr=user.selUser();
		if(arr==null)
		{
			out.print("您还未申请，请先注册");
		}
		else
		{
			if(q==1)
			{
				//管理员
				RequestDispatcher dis=request.getRequestDispatcher("indexs.jsp");
				dis.forward(request, response);
			}
			else
			{
				//普通用户
				RequestDispatcher dis=request.getRequestDispatcher("index-ok.jsp");
				dis.forward(request, response);
			}
			
		}
		
		out.close();
	}

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

}