login.java

仓库管理系统,适合各种行业的仓库管理系统

package com.login.action;

import java.io.IOException;
import java.sql.Connection;
import java.sql.SQLException;

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

import com.bean.DAO.UserinforDAO;
import com.bean.DTO.UserinforDTO;
import com.database.DataSourceFactory;
import com.servlet.AbstractAction;

public class Login extends AbstractAction {

	@Override
	public String process(HttpServletRequest request,
			HttpServletResponse response) throws ServletException, IOException {
		String redirect="";
		String error="";
		String user=request.getParameter("userID");
		String password=request.getParameter("password");
		String job=request.getParameter("select");
	
			try {
				if(user==null&&password==null){
					error="不允许填入空值";
					redirect="/User/login.jsp";
				}else{
				Connection con=DataSourceFactory.getDataSource().getConnection();
			     int userID=Integer.parseInt(user);
			     int jobID=Integer.parseInt(job);
			     UserinforDTO dto=new UserinforDTO();
			     dto.setUserID(userID);
			     dto.setJobID(jobID);
			     dto.setPassword(password);
			     UserinforDAO dao=new UserinforDAO(con);
			     UserinforDTO udto=dao.checkUser(dto);
			     if(udto!=null){
			    	 redirect="../mainpage/main.html";
			    	 request.getSession().setAttribute("userinfor",udto);
			     }else{
			    	 error="用户信息不正确";
			    	 redirect="/User/login.jsp";
			     }
			     con.close();
				} 
				
			} catch(NumberFormatException e){
				error="请填写正确的ID";
				redirect="/User/login.jsp";
			}
			catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}finally{
			request.setAttribute("error",error);
		}
		
		return redirect;
	}

}