餐厅点餐系统详细设计与系统实现

最新推荐文章于 2025-07-05 13:12:52 发布

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最新推荐文章于 2025-07-05 13:12:52 发布 · 7.7k 阅读

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原文链接：http://www.cnblogs.com/hamac/p/10943361.html

本文详述了餐厅点餐系统的业务逻辑设计，包括用户登陆登出、点餐、菜单修改、管理员权限等功能，并探讨了表现层的设计与实现，如登陆注册界面、菜单页面和订单处理等。

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餐厅点餐系统详细设计与系统实现

一.主要业务逻辑设计

1.登陆操作

package com.ibooking.action;

import com.ibooking.action.base.*;
import com.ibooking.util.*;

import com.opensymphony.xwork2.ActionContext;

public class LoginProcessAction extends BaseAction {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private String userName;
	private String userPasswd;

	@Override
	public String execute() {
		ActionContext ctx = ActionContext.getContext();
		if (daoService.validatePasswd(userName, userPasswd)) {
			String userAuth = daoService.getUserAuthByName(userName);

			//save the user info
			ctx.getSession().put(WebConstant.LOGIN_USER, userName);
			ctx.getSession().put(WebConstant.LOGIN_AUTH, userAuth);

			fillTitle();
			return fillIndexPage();
		}else {
			failReason = getText("loginFailure");
			return RET_FAIL;
		}
	}
	
}

2.登出操作

package com.ibooking.action;

import com.ibooking.action.base.*;
import com.ibooking.util.*;

import com.opensymphony.xwork2.ActionContext;

public class LogoutProcessAction extends BaseAction {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	@Override
	public String execute() {
		ActionContext ctx = ActionContext.getContext();
		String userName = (String)ctx.getSession().get(WebConstant.LOGIN_USER);
		
		if (!userName.isEmpty()) {
			//clear the user info
			ctx.getSession().put(WebConstant.LOGIN_USER, null);
			ctx.getSession().put(WebConstant.LOGIN_AUTH, null);
			ctx.getSession().clear();

			fillTitle();
			return fillIndexPage();
		}else {
			return RET_FAIL;
		}
	}
}

3.点餐操作

　　3.1添加菜品

package com.ibooking.action;

import com.ibooking.action.base.*;

public class OrderDetailPageEnterAction extends BaseAction {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;

	private int orderId;

	@Override
	public String execute() {
		fillTitle();

		return fillOrderDetailPage(orderId);
	}


}

　　3.2订单提交

package com.ibooking.action;

import java.io.ByteArrayInputStream;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;

import com.ibooking.action.base.*;
import com.ibooking.util.WebConstant;
import com.opensymphony.xwork2.ActionContext;

public class MenuSubmitAction extends BaseAction {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private String menuName;
	private String menuPrice;
	
	private InputStream inputStream;

	@Override
	public String execute() throws UnsupportedEncodingException {
		ActionContext ctx = ActionContext.getContext();
		String userName = (String)ctx.getSession().get(WebConstant.LOGIN_USER);

		int amount = daoService.changeShoppingAmount(userName, menuName, menuPrice, true);
		if (amount == WebConstant.INVALID_VALUE) {
			amount = 0;
		}

		String result = String.valueOf(amount);
		inputStream = new ByteArrayInputStream(result.getBytes("UTF-8"));

		return RET_SUCC;
	}

4.顾客菜单修改操作

package com.ibooking.action;

import java.io.UnsupportedEncodingException;

import com.ibooking.action.base.*;

public class OrderListChangeAction extends BaseAction {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	
	private String opt;
	private int orderId;

	@Override
	public String execute() throws UnsupportedEncodingException {
		//analysis and process the opt param
		if (opt.equals("orderDel")){
			daoService.deleteOrderTrans(orderId);
		}
		
		return fillOrderListPage();
	}

5.管理员修改菜单

package com.ibooking.action.manager;

import java.io.UnsupportedEncodingException;

import com.ibooking.action.base.*;

public class ManMenuChangeAction ext