login_conf.java

用mvc实现的留言板

package com.jq.servlet;

import java.io.IOException;

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 com.jq.bean.NoteJavaBean;
import com.jq.bean.NoteSqlBean;

public class Login_conf extends HttpServlet {

	/**
	 * Constructor of the object.
	 */
	public Login_conf() {
		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 {
		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 {
		HttpSession session = request.getSession();
		// 接收参数
		String id = request.getParameter("id") ;
		String password = request.getParameter("pasword") ;
		
		//获得参数放入javaBean中
		NoteJavaBean jBean = new NoteJavaBean();
		jBean.setSId(id);
		jBean.setPassword(password);
		
		//调用sqlBean方法查询用户是否正确
		NoteSqlBean sBean = new NoteSqlBean();
		String name = sBean.getperson(jBean);
		String url = "";
		if (!"".equals(name) && name != null) {
			session.setAttribute("name", name);
			url = "/login_success.jsp";
		} else {
			//返回错误信息
			session.setAttribute("error", "错误的编号及密码！！！");
			url = "/login.jsp";
		}
		request.getRequestDispatcher(url).forward(request, response);
	}

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

}