loginaction.java

基于Struts的电子银行系统

/*
 * Created on 2005-7-27
 *
 * TODO To change the template for this generated file go to
 * Window - Preferences - Java - Code Style - Code Templates
 */
package banksystem.action;

import java.sql.SQLException;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import javax.sql.DataSource;

import org.apache.commons.beanutils.BeanUtils;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionMessage;
import org.apache.struts.action.ActionMessages;

import banksystem.Constants;
import banksystem.PO.Customer;
import banksystem.VO.LoginActionForm;
import banksystem.VO.UserInfoActionForm;
import banksystem.business.BusinessDelegate;
import banksystem.exception.*;
import banksystem.business.SearchGene;

/**
 * @author 曲本盛
 *
 * TODO Struts 项目实践
 */
public class LoginAction extends Action {
	BusinessDelegate business = null;

	/** 
	 * TODO 处理用户登录请求的Action
	 * @see org.apache.struts.action.Action#execute(org.apache.struts.action.ActionMapping, org.apache.struts.action.ActionForm, javax.servlet.ServletRequest, javax.servlet.ServletResponse)
	 */
	public ActionForward execute(ActionMapping actionMapping, ActionForm actionForm,
			HttpServletRequest request, HttpServletResponse response) throws Exception {
		//若选择取消则重定向到Input
		if(this.isCancelled(request)){
			return actionMapping.getInputForward();
		}
		
		
		// TODO Auto-generated method stub
		//用户登录检查session

		HttpSession session = request.getSession(true);
		//设置该session的生存周期
		//session.setMaxInactiveInterval(20);
		
		ActionMessages errors = this.getErrors(request);
		
		LoginActionForm login = (LoginActionForm)actionForm;
		Customer customer = new Customer();
		UserInfoActionForm userinfo = new UserInfoActionForm();
		
		String userType = login.getUserType();
		String accountID = login.getAccountID();
		String password = login.getPassword();
		//System.out.println(accountID);
		//System.out.println(password);
		//填充Customer对象
		customer.setAccountID(accountID);
		customer.setLoginPass(password);
		
		business = BusinessDelegate.getInstance();
		SearchGene gene = new SearchGene();
		try{
			//使用查询条件代理类自动生成查询条件
			gene.setAccountID(accountID);
			gene.setUserType(userType);
			//System.out.println(userType);
			
			DataSource dataSource = this.getDataSource(request);
			business.checkLogin(dataSource,customer,gene);
			//将customer中的值存入login
			BeanUtils.copyProperties(userinfo,customer);
			//关键:若无异常抛出则将userinfo对象存入session中,已备各页查看
			session.setAttribute(Constants.KEY_CUSTOMER_INFO,userinfo);
			
			//System.out.println("成功");
			if("normal".equals(userType)){
				return  actionMapping.findForward("normal");
			}
			else if("admin".equals(userType)){
				return  actionMapping.findForward("admin");
			}
			else{
				throw new SQLException(Constants.ERRORS_INVALID_INPUT);
			}
		}
		catch(AccountNotExistException ae){
			errors.add("failed",new ActionMessage(ae.getKey()));
			this.saveErrors(request,errors);
			//System.out.println("无该帐号");
			return actionMapping.getInputForward();
		}
		catch(UserPasswordInvalidException ue){
			errors.add("failed",new ActionMessage(ue.getKey()));
			this.saveErrors(request,errors);
			//System.out.println("密码错");
			return actionMapping.getInputForward();
		}
		catch(SQLException e){
			errors.add("failed",new ActionMessage(Constants.ERRORS_DATA_SAVE_EXCEPTION,e.getMessage()));
			this.saveErrors(request,errors);
			//e.printStackTrace();
			return actionMapping.getInputForward();
		}
	}
}