loginaction.java

JSP编写的汽车门户系统

/**
 *  (c) Copyright 2007 computer01
 *
 *   FILENAME     :  LoginAction.java
 *   PACKAGE      :  com.computer03.action
 *   CREATE DATE  :  2007-12-26
 *   AUTHOR       :  admin
 *   DESCRIPTION  :  LoginAction Servlet
 */
package com.computer03.action;

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

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

import com.computer03.common.SessionInfo;
import com.computer03.entity.AllEntity;
import com.computer03.entity.TAB_STUDENTS;
import com.computer03.entitysupport.StudentsAssiImpl;


public class LoginAction extends HttpServlet{

	private static final long
	serialVersionUID = -2854114320143909334L;
	
	public void doGet(HttpServletRequest request
			,HttpServletResponse response)
	throws ServletException,IOException{
		//获取数据
		String uid = 
			request.getParameter("uid");
		String pwd = 
			request.getParameter("pwd");
		//封装数据
		TAB_STUDENTS stucon = new TAB_STUDENTS();
		stucon.setSTUNO(uid);
		AllEntity condition = new AllEntity();
		condition.setStudent(stucon);
		//验证数据
		StudentsAssiImpl impl = 
			new StudentsAssiImpl();
		List list = 
			impl.getEntityList(condition);
		PrintWriter out = response.getWriter();
		if(list!=null){
			if(list.size()!=0){//用户存在
			AllEntity allget =
				(AllEntity)list.get(0);
			TAB_STUDENTS stuget =
				allget.getStudent();
				if(pwd.equals(stuget.getPWD())){
				//登录成功
				/**
				 * 将学生信息存入Session中
				 */
				SessionInfo sessinfo = 
					new SessionInfo();
				sessinfo.setCurrstu(stuget);
				request.getSession()
				.setAttribute("SessionInfo", sessinfo);
				
				response.sendRedirect(
				request.getContextPath()
				+"/web/frame/mainframe.jsp");
				}else{//用户名存在，密码不正确
				out.write("uid be ,pwd error!!!");	
				}
			}else{//用户不存在
				out.write("user's info not exists!");
			}
		}else{//用户不存在
			out.write("user's info not extist!");
		}
	}
	public void doPost(HttpServletRequest request
			,HttpServletResponse response)
	throws ServletException,IOException{
		doGet(request,response);
	}
}