【安卓大作业】Android Studio图书管理系统听雨轩

一、界面展示

二、功能介绍
登陆注册，借阅图书、收藏图书、修改个人信息、钱包充值、退出登录

三、关键代码展示
（1）database

public class DbHelper extends SQLiteOpenHelper {private static final String SQL_BOOK= "create table if not exists "+Constants.TABLE_NAME_BOOK+"(" +"number INTEGER NOT NULL primary key autoincrement," +"type varchar(50)  NOT NULL," +"price float NOT NULL," +"public_com varchar(50)  DEFAULT '听雨喧出版社'," +"count int(11) NOT NULL," +"name varchar(50) NOT NULL," +"cover varchar(50) DEFAULT NULL," +"introduce varchar(128)  DEFAULT NULL," +"look_number int(11) default 0," +"star_number int(11) default 0," +"brow_number int(11) default 0" +")";private static final String SQL_USER= "create table if not exists "+Constants.TABLE_NAME_USER+"(" +"id INTEGER NOT NULL primary key autoincrement," +"type int(11) DEFAULT 1," +"sex varchar(5) DEFAULT NULL," +"major varchar(100) DEFAULT NULL," +"classnum int(11) DEFAULT NULL," +"name varchar(50) NOT NULL unique," +"cover varchar(128)  DEFAULT NULL," +"age int(11) DEFAULT 0," +"phone int(11) DEFAULT 0," +"jointime datetime DEFAULT NULL," +"email int(11) DEFAULT 0," +"password varchar(50) not null"+")";private static final String SQL_OUT_BOOK= "create table if not exists "+Constants.TABLE_NAME_OUT_BOOK+"(" +"id INTEGER  primary key autoincrement," +"outtime varchar(100) not null," +"userid int(11) not null," +"bookname varchar(51) not null," +"duration int(11) default 30," +"state int(11) default 0" +")";private static final String SQL_FAVIOR_BOOK= "create table if not exists "+Constants.TABLE_NAME_FAVOR+"(" +"id INTEGER  primary key autoincrement," +"time varchar(100) not null," +"userid int(11) not null," +"bookname varchar(51) not null," +"state int(11) default 1" +")";private static final String SQL_OPERATION = "create table if not exists "+Constants.TABLE_NAME_RECORD_OPERATION+"(" +"id INTEGER  primary key autoincrement," +"operation varchar(128) not null," +"username varchar(51) not null," +"time varchar(100) not null" +")";public DbHelper(Context context){super(context,"tingyuxuan.db",null,1);}public DbHelper(Context context, String name, SQLiteDatabase.CursorFactory factory, int version) {super(context, name, factory, version);}@Overridepublic void onCreate(SQLiteDatabase sqLiteDatabase) {//创建表sqLiteDatabase.execSQL(SQL_BOOK);sqLiteDatabase.execSQL(SQL_USER);sqLiteDatabase.execSQL(SQL_OUT_BOOK);sqLiteDatabase.execSQL(SQL_OPERATION);sqLiteDatabase.execSQL(SQL_FAVIOR_BOOK);System.out.println("数据库创建成功");}@Overridepublic void onUpgrade(SQLiteDatabase sqLiteDatabase, int i, int i1) {}public void addUser(String name,String pwd,String email,int type){SQLiteDatabase db = this.getWritableDatabase();ContentValues values = new ContentValues();values.put("name",name);values.put("password",pwd);values.put("email",email);values.put("type",type);db.insert("user",null,values);values.clear();db.close();}public int getUserLevl(String name){SQLiteDatabase db = this.getWritableDatabase();Cursor cursor = db.rawQuery("select type from user where name='" + name + "'", null);cursor.moveToLast();int type=0;try{type= cursor.getInt(cursor.getColumnIndex("type"));}catch (SQLException e){e.printStackTrace();}finally {db.close();return type;}}public String getUserName(int id){SQLiteDatabase db = this.getWritableDatabase();Cursor cursor = db.rawQuery("select name from user where id='" + id + "'", null);cursor.moveToLast();String name="";try{name= cursor.getString(cursor.getColumnIndex("name"));}catch (SQLException e){e.printStackTrace();}finally {db.close();return name;}}//获取用户的idpublic int getUserId(String name){SQLiteDatabase db = this.getWritableDatabase();Cursor cursor = db.rawQuery("select id from user where name='" + name + "'", null);cursor.moveToLast();int type=0;try{type= cursor.getInt(cursor.getColumnIndex("id"));}catch (SQLException e){e.printStackTrace();}finally {db.close();return type;}}public String getBookName(int id){SQLiteDatabase db = this.getWritableDatabase();Cursor cursor = db.rawQuery("select name from book where id=" + id , null);cursor.moveToLast();String nmae="";try{nmae= cursor.getString(cursor.getColumnIndex("name"));}catch (SQLException e){e.printStackTrace();}finally {db.close();return nmae;}}public List<BookBean> getAllBooks(){List<BookBean> books = new ArrayList<>();SQLiteDatabase db = this.getWritableDatabase();//查询Book表中的所有数据Cursor cursor = db.query("book", null, null, null, null, null, "number desc", null);//遍历Curosr对象，取出数据并打印while (cursor.moveToNext()) {BookBean book = new BookBean();String name = cursor.getString(cursor.getColumnIndex("name"));String introduce = cursor.getString(cursor.getColumnIndex("introduce"));String pub = cursor.getString(cursor.getColumnIndex("public_com"));String type = cursor.getString(cursor.getColumnIndex("type"));int count = cursor.getInt(cursor.getColumnIndex("count"));int look_number = cursor.getInt(cursor.getColumnIndex("look_number"));int star_number = cursor.getInt(cursor.getColumnIndex("star_number"));int price = cursor.getInt(cursor.getColumnIndex("price"));int id = cursor.getInt(cursor.getColumnIndex("number"));book.setNumber(id);book.setName(name);book.setPublic_com(pub);book.setLook_number(look_number);book.setStar_number(star_number);book.setIntroduce(introduce);book.setCount(count);book.setPrice(price);book.setType(type);books.add(book);}//关闭Cursorcursor.close();db.close();return books;}public void addBook(BookBean book){SQLiteDatabase db = this.getReadableDatabase();ContentValues values = new ContentValues();values.put("name",book.getName());values.put("price",book.getPrice());values.put("count",book.getCount());values.put("introduce","这是有关："+book.getName()+"的介绍");values.put("type",book.getType());long book1 = db.insert("book", null, values);System.out.println("-=-----book1---添加一本-"+book1);values.clear();db.close();}public void addBooks(){SQLiteDatabase db = this.getReadableDatabase();ContentValues values = new ContentValues();Random random = new Random();String bookName = Constants.getBookName(random.nextInt(100));values.put("name", bookName);values.put("price",random.nextInt(90)/2);values.put("count",random.nextInt(40));values.put("introduce","这是有关："+bookName+"的介绍");values.put("type","文学");db.insert("book",null,values);values.clear();db.close();}public void addDefaultData(){SQLiteDatabase db = this.getWritableDatabase();ContentValues values = new ContentValues();for(int i=1;i<11;i++){Random random = new Random();int index = random.nextInt(100);String bookName = Constants.getBookName(index);values.put("type","文学类");values.put("price",i+index);values.put("star_number",0);values.put("public_com","听雨轩出版社");values.put("count",20+i);values.put("name",bookName+"传");values.put("introduce","介绍："+bookName);try {long book = db.insert("book", null, values);}catch (SQLException e){e.printStackTrace();}finally {values.clear();}}db.close();}public void addToMyBorreow(String username,String bookName) {SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy年MM月dd日 HH:mm:ss");// HH:mm:ss
//获取当前时间Date date = new Date(System.currentTimeMillis());String time = simpleDateFormat.format(date);int userId = getUserId(username);SQLiteDatabase db = this.getReadableDatabase();ContentValues values = new ContentValues();values.put("userid",userId);values.put("bookname",bookName);values.put("outtime",time);try{db.insert("outbook",null,values);}catch (SQLException e){e.printStackTrace();}finally {values.clear();db.close();}}public  void getUserBorrows(String name){String sql = "select j.outtime,b.name,j.duration from outbook j,book b,user u where u.name='"+name+"' and u.id=j.userid and b.number=j.bookid ";SQLiteDatabase db = this.getWritableDatabase();Cursor cursor = db.rawQuery(sql, null);
//        db.query()while(cursor.moveToNext()){String outtime = cursor.getString(cursor.getColumnIndex("outtime"));String name2 = cursor.getString(cursor.getColumnIndex("name"));int duration = cursor.getInt(cursor.getColumnIndex("duration"));}}public void selectAllBorrow(String name){List<BorrowBean> books = new ArrayList<>();int userId = getUserId(name);SQLiteDatabase db = this.getReadableDatabase();Cursor cursor = db.query("outbook", null, null, null, null, null, null);while (cursor.moveToNext()){int id = cursor.getInt(cursor.getColumnIndex("userid"));if(userId == id){BorrowBean  bean = new BorrowBean();String outtime = cursor.getString(cursor.getColumnIndex("outtime"));String name2 = cursor.getString(cursor.getColumnIndex("name"));bean.setTime(outtime);bean.setName(name2);System.out.println("------------------"+outtime+"---"+name2);}}}public  List<UserBean> getAllUsers(){List<UserBean> users =  new ArrayList<>();SQLiteDatabase db = this.getWritableDatabase();
//        Cursor cursor = db.query("user", null, null, null, null, null, null);Cursor cursor = db.rawQuery("select * from user order by id desc", null);while(cursor.moveToNext()){int id = cursor.getInt(cursor.getColumnIndex("id"));int type = cursor.getInt(cursor.getColumnIndex("type"));String name = cursor.getString(cursor.getColumnIndex("name"));String sex = cursor.getString(cursor.getColumnIndex("sex"));String major = cursor.getString(cursor.getColumnIndex("major"));String email = cursor.getString(cursor.getColumnIndex("email"));String pwd = cursor.getString(cursor.getColumnIndex("password"));UserBean bean = new UserBean();bean.setType(type);bean.setPassword(pwd);bean.setId(id);bean.setMajor(major);bean.setSex(sex);bean.setEmail(email);bean.setName(name);users.add(bean);}cursor.close();db.close();return users;}
}

【安卓大作业】Android Studio图书管理系统听雨轩相关推荐

【安卓大作业】Android Studio学校图书管理系统
[安卓大作业]Android Studio学校图书管理系统一.界面展示二.功能介绍图书馆介绍.查看上架新书.借阅排行榜学生端.图书借阅.管理员端.图书管理等三.项目结构四.关键代码展示 ( ...
安卓大作业图书管理APP
系列文章安卓大作业图书管理APP 文章目录系列文章 1．背景 2．功能 3. 源代码获取 1．背景本次实验设计的是一个图书管理系统,系统的整体目录如下: 2．功能针对于每个java类或者Ac ...
安卓期末大作业Android studio-记单词app（资源链接在文末，含注册登录，含设计报告，含导出app文件及源码导入方法文档）
安卓期末大作业Android studio-记单词app(注册登录.增删改查) (资源下载链接在文末) 1.注册登录界面 2.用户点击加号按钮输入单词,键盘会自动弹出并焦点在输入框,用户输入英文和中文 ...
安卓期末大作业——Android水果连连看
详情介绍功能描述: 该连连看实现了基本的游戏功能,还实现了重开.提醒.背景音乐等功能,适合新手学习.搭建方法请看教菜单中的androidstudio项目搭建教程. 开发语言: java 技术框架: ...
安卓期末大作业——android音乐播放器
详情介绍功能描述: 扫描手机上的音乐文件,显示音乐列表,显示歌词,上一首,下一首,音量控制进度条显示.app实现了在android6.0或以上动态权限申请功能,适合新手研究.搭建方法请看入门教程菜单 ...
安卓期末大作业——Android在线电影播放器
功能描述: 该在线电影播放app实现电影列表,播放网络电影,全屏,快进,快退,手势调节声音,亮度,进度条,锁屏等,适合新手学习.搭建方法请看入门教程菜单中的androidstudio项目搭建教程. 开 ...
安卓期末大作业——Android手机购物商城（含服务端）
功能描述: 本系统带服务器端.服务器端代码是javaweb.服务器端主要实现了商品管理,用户管理,订单管理,留言管理等.手机端主要实现了用户注册,登录,商品查询,购物车,订单,留言等功能.适合新手学习 ...
计算机毕业设计PHP+安卓基于Android的图书管理系统论文(源码+程序+lw+远程调试)
该项目含有源码.文档.程序.数据库.配套开发软件.软件安装教程.欢迎交流项目运行环境配置: phpStudy+ Vscode +Mysql5.7 + HBuilderX+Navicat11+Vue ...
西工大数据库实验大作业火锅店菜品管理系统
西工大数据库实验大作业火锅店菜品管理系统文章目录西工大数据库实验大作业火锅店菜品管理系统前言: 一.大作业简单的需求分析: 二.数据流图: 三.数据字典: 四.E-R图: 五.关系模式设计: ...
C语言大作业：旅游资讯管理系统
C语言大作业:旅游资讯管理系统题目: 一.主体功能点要求: 1.设计主菜单实现用户交互 a.添加旅游资讯记录每条记录至少包含如下项:编号.日程安排.费用.点赞数.添加旅游资讯记录时,要求键盘输入对 ...

【安卓大作业】Android Studio图书管理系统听雨轩

【安卓大作业】Android Studio图书管理系统听雨轩

【安卓大作业】Android Studio图书管理系统听雨轩相关推荐

最新文章

热门文章

【安卓大作业】Android Studio图书管理系统 听雨轩

【安卓大作业】Android Studio图书管理系统 听雨轩

【安卓大作业】Android Studio图书管理系统 听雨轩相关推荐

最新文章

热门文章

【安卓大作业】Android Studio图书管理系统听雨轩

【安卓大作业】Android Studio图书管理系统听雨轩

【安卓大作业】Android Studio图书管理系统听雨轩相关推荐