adminservlet.java

一套网上书店系统采用JAVABEAN+SERVLET+JSP

package cn.dang.servlet;

import ghy_db.Conn_Manager;

import java.io.IOException;

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

import cn.dang.service.AllService;

public class AdminServlet extends HttpServlet {

	/**
	 * 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 {
	}

	/**
	 * 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 {
		//从JSP页面获得帐号和密码
		String name = request.getParameter("adminname");
		String password = request.getParameter("password");
		AllService ref = new AllService();
		try {
			//调用验证方法如果为真就跳转到manager.jsp页面
			if(ref.getAdminService().validata(name, password)){
				request.setAttribute("name", name);
				Conn_Manager.transaction_commit();
				request.getRequestDispatcher("../manager/manager.jsp").forward(request, response);
			}else{
				response.sendRedirect("../manager/error.jsp");
			}
		} catch (Throwable e) {
			// TODO Auto-generated catch block
			Conn_Manager.transaction_rollback();
			e.printStackTrace();
		}
	}

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

}