IDEA+Java控制台实现学生信息管理系统建议收藏

Posted 2021-09-27 水坚石青

tags:

篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了IDEA+Java控制台实现学生信息管理系统建议收藏相关的知识，希望对你有一定的参考价值。

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.实现学生信息的增删改查

4.获取资源

1.CSDN下载

Java实现控制台学生信息管理系统-Java文档类资源-CSDN下载Java实现控制台学生信息管理系统，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/21048450

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.查询学生信息

3.增加学生信息

4.更新学生信息

5.删除学生信息

三、部分代码

BussinessService

package service;

import common.Constant;
import common.Response;
import entity.Student;

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

public class BusinessService {

    private static List<Student> businessList = new ArrayList<>();

    static {
        businessList.add(new Student("1","张三","男","25","北京"));
        businessList.add(new Student("2","李四","男","26","南京"));
        businessList.add(new Student("3","王五","男","27","武汉"));

    }

    // 查询
    public Response query(String name){
        if(name == null || "".equals(name)){
            return new Response("error","编号为空。");
        }
        for(Student student : businessList){
            if(name.equals(student.getStuId())){
                return new Response("success","查询成功。", student);
            }
        }
        return new Response("error","未查询到此"+ Constant.MAIN_CLASS +"，请重新输入：");
    }

    // 增加
    public Response add(Student student){
        for(Student s : businessList){
            if(s.getStuId().equals(student.getStuId())){
                return new Response("error","该"+ Constant.MAIN_CLASS+"已存在。");
            }
        }
        businessList.add(student);
        return new Response("success", Constant.MAIN_CLASS+"添加成功。", student);
    }

    // 编辑
    public Response checkProp(Student student, String prop, String value){
        if(prop == null || "".equals(prop)){
            return new Response("error","属性为空。");
        }
        String[] props = {"stuId","stuName","stuSex","stuAge","stuWeight"};
        switch(prop){
            case "stuId" :
                student.setStuId(value);
                break;
            case "stuName" :
                student.setStuName(value);
                break;
            case "stuSex" :
                student.setStuSex(value);
                break;
            case "stuAge" :
                student.setStuAge(value);
                break;
            case "stuAddress" :
                student.setStuAddress(value);
                break;
            default:
                return new Response("error","该属性不存在。");
        }
        return new Response("success","编辑成功。");
    }

    // 删除
    public Response delete(String name){
        if(name == null || "".equals(name)){
            return new Response("error", Constant.MAIN_CLASS+"编号为空。");
        }
        for(Student student: businessList){
            if(student.getStuId().equals(name)){
                businessList.remove(student);
                return new Response("success", Constant.MAIN_CLASS+"删除成功。");
            }
        }
        return new Response("error", Constant.MAIN_CLASS+"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。");
    }

}