IDEA+Java控制台实现教材管理系统建议收藏

Posted 2021-09-27 水坚石青

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一、系统介绍

1.开发环境

开发工具：IDEA2018.2

JDK版本：jdk1.8

2.技术选型

Java语言开发，使用ArrayList存储信息。

3.系统功能

1.实现系统登录

2.实现教材信息的增删改查

4.获取资源

1.CSDN下载

Java实现控制台教材管理系统-Java文档类资源-CSDN下载Java实现控制台教材管理系统，实现登录、增删改查，系统经多次测试，运行无误，请大家放心下载。更多下载资源、学习资料请访问CSDN下载频道.https://download.csdn.net/download/helongqiang/21048432

2.免费获取

关注微信公众号加我微信联系我。

二、系统展示

1.登录系统

2.查询教材信息

3.增加教材信息

4.更新教材信息

5.删除教材信息

三、部分代码

BookService

package service;

import common.Response;
import entity.Book;

import java.util.ArrayList;
import java.util.List;

public class BookService {

    private static List<Book> bookList = new ArrayList<>();

    static {
        bookList.add(new Book("计算机组成原理","计算机","49.8"));
        bookList.add(new Book("数据结构","计算机","38.8"));
        bookList.add(new Book("操作系统","计算机","29.9"));
    }

    public Response query(String name){
        if(name == null || "".equals(name)){
            return new Response("error","教材名为空。");
        }
        for(Book book : bookList){
            if(name.equals(book.getName())){
                return new Response("success","查询成功。", book);
            }
        }
        return new Response("error","未查询到此教材，请重新输入：");
    }

    public Response add(Book book){
        for(Book b : bookList){
            if(b.getName().equals(book.getName())){
                return new Response("error","该教材已存在。");
            }
        }
        bookList.add(book);
        return new Response("success","教材添加成功。", book);
    }

    public Response checkProp(Book book, String prop, String value){
        if(prop == null || "".equals(prop)){
            return new Response("error","属性为空。");
        }
        String[] props = {"name","code","author","publishTime","publisher","type","price"};
        switch(prop){
            case "name" :
                book.setName(value);
                break;
            case "code" :
                book.setCode(value);
                break;
            case "author" :
                book.setAuthor(value);
                break;
            case "publishTime" :
                book.setPublishTime(value);
                break;
            case "publisher" :
                book.setPublisher(value);
                break;
            case "type" :
                book.setType(value);
                break;
            case "price" :
                book.setPrice(value);
                break;
            default:
                return new Response("error","该属性不存在。");
        }
        return new Response("success","编辑成功。");
    }

    public Response delete(String name){
        if(name == null || "".equals(name)){
            return new Response("error","教材名为空。");
        }
        for(Book b : bookList){
            if(b.getName().equals(name)){
                bookList.remove(b);
                return new Response("success","教材删除成功。");
            }
        }
        return new Response("error","教材不存在。");
    }

}

LoginService

package service;

import common.Account;
import common.Response;
import entity.User;

import java.util.ArrayList;
import java.util.List;

public class LoginService {

    private static List<User> userList = new ArrayList();

    static{
        userList.add(new User(Account.ADMIN.getUsername(),Account.ADMIN.getPassword()));
        userList.add(new User(Account.USER1.getUsername(),Account.USER1.getPassword()));
        userList.add(new User(Account.USER2.getUsername(),Account.USER2.getPassword()));
        userList.add(new User(Account.USER3.getUsername(),Account.USER3.getPassword()));
    }

    public Response login(String username, String password){
        if(username == null || "".equals(username)){
            return new Response("error","用户名为空，请输入用户名。");
        }
        if(password == null || "".equals(password)){
            return new Response("error","密码为空，请输入密码。");
        }
        for (User user : userList){
            if(username.equals(user.getUsername()) && password.equals(user.getPassword())){
                return new Response("success","登陆成功！");
            }
        }
        return new Response("error","用户名或密码输入错误，请检查并重新输入。");
    }

}