Android Studio中sqlite的使用

//AData.java
package com.example.newjzb;public class AData {private int id;private String typesz;//支出收入private float money;//金额private String type;//类型private String beizhu;//备注private int year;private int month;private int day;public AData(){}public AData(int id,String typesz,float money,String type,String beizhu,int year,int month,int day){this.id=id;this.typesz=typesz;this.money=money;this.type=type;this.beizhu=beizhu;this.year=year;this.month=month;this.day=day;}public void setId(int id) {this.id = id;}public int getId() {return id;}public void setTypesz(String typesz) {this.typesz = typesz;}public String getTypesz() {return typesz;}public void setMoney(float money) {this.money = money;}public float getMoney() {return money;}public void setType(String type) {this.type = type;}public String getType() {return type;}public void setBeizhu(String beizhu) {this.beizhu = beizhu;}public String getBeizhu() {return beizhu;}public void setYear(int year) {this.year = year;}public int getYear() {return year;}public void setMonth(int month) {this.month = month;}public int getMonth() {return month;}public void setDay(int day) {this.day = day;}public int getDay() {return day;}}

//ADataBase

package com.example.newjzb;import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;import java.util.ArrayList;
import java.util.List;public class ADataBase extends SQLiteOpenHelper {private static final String DB_NAME = "mySQLite.db";private static final String TABLE_NAME = "AJZB";public ADataBase(Context context){super(context,DB_NAME,null,1);}//数据库第一次创建时调用该方法@Overridepublic void onCreate(SQLiteDatabase db) {String sql="create table " + TABLE_NAME + "(Aid integer primary key autoincrement," +"Atypesz text not null,"+"Amoney float not null," +"Atype text not null," +"Abeizhu text ," +"Ayear integer not null," +"Amonth integer not null," +"Aday integer not null);";db.execSQL(sql);}//数据库版本号更新时调用@Overridepublic void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {}//增加public long addData(AData aData){SQLiteDatabase db =this.getWritableDatabase();ContentValues values=new ContentValues();values.put("Atypesz",aData.getTypesz());values.put("Amoney",aData.getMoney());values.put("Atype",aData.getType());values.put("Abeizhu",aData.getBeizhu());values.put("Ayear",aData.getYear());values.put("Amonth",aData.getMonth());values.put("Aday",aData.getDay());return db.insert(TABLE_NAME,null,values);}//每日public List<AData> dayData(int year,int month,int day){SQLiteDatabase db=getWritableDatabase();List<AData>ADataList=new ArrayList<>();String sql = "select * from "+TABLE_NAME+" where Ayear=? and Amonth=? and Aday=? order by Aid desc";Cursor cursor = db.rawQuery(sql, new String[]{year + "", month + "", day + ""});if(cursor!=null){while (cursor.moveToNext()){
//                int id=cursor.getInt(cursor.getColumnIndexOrThrow("Aid"));int id=cursor.getInt(0);String typesz=cursor.getString(1);float money=cursor.getFloat(2);String type=cursor.getString(3);String beizhu=cursor.getString(4);AData aData=new AData(id,typesz,money,type,beizhu,year,month,day);ADataList.add(aData);}cursor.close();}db.close();return ADataList;}//所有账单public List<AData> allData() {SQLiteDatabase db = getWritableDatabase();List<AData> ADataList = new ArrayList<>();String sql = "select * from "+TABLE_NAME+" order by Aid desc";Cursor cursor = db.rawQuery(sql,null);//Cursor cursor = db.query(TABLE_NAME, null, null, null, null, null, null);if (cursor != null) {while (cursor.moveToNext()) {int id=cursor.getInt(0);String typesz=cursor.getString(1);float money=cursor.getFloat(2);String type=cursor.getString(3);String beizhu=cursor.getString(4);int year=cursor.getInt(5);int month=cursor.getInt(6);int day=cursor.getInt(7);AData aData=new AData(id,typesz,money,type,beizhu,year,month,day);ADataList.add(aData);}cursor.close();}db.close();return ADataList;}//删除数据public void deleteData(int id){SQLiteDatabase db =getWritableDatabase();db.delete(TABLE_NAME,"Aid=?", new String[]{id+""});db.close();}//每月
//    public List<AData> day_typesz(int year,int month){
//        SQLiteDatabase db=getWritableDatabase();
//        List<AData>ADataList=new ArrayList<>();
//        String sql = "select * from "+TABLE_NAME+" where Ayear=? and Amonth=? order by Aid desc";
//        Cursor cursor = db.rawQuery(sql, new String[]{year + "", month + ""});
//        if(cursor!=null){
//            while (cursor.moveToNext()){int id=cursor.getInt(cursor.getColumnIndexOrThrow("Aid"));
//                int id=cursor.getInt(0);
//                String typesz=cursor.getString(1);
//                float money=cursor.getFloat(2);
//                String type=cursor.getString(3);
//                String beizhu=cursor.getString(4);
//                int day=cursor.getInt(7);
//                AData aData=new AData(id,typesz,money,type,beizhu,year,month,day);
//                ADataList.add(aData);
//            }
//            cursor.close();
//        }
//        db.close();
//        return ADataList;
//    }//每日和（支出/收入）public float daySumtypesz(int year,int month,int day,String typesz){SQLiteDatabase db=getWritableDatabase();float sum=0;String sql = "select sum(Amoney) from "+TABLE_NAME+" where Ayear=? and Amonth=? and Aday=? and Atypesz=?";Cursor cursor = db.rawQuery(sql, new String[]{year + "", month + "",day + "", typesz + ""});if(cursor!=null){while (cursor.moveToNext()){
//float money = cursor.getFloat(cursor.getColumnIndex("sum(Amoney)"));sum = money;}cursor.close();}db.close();return  sum;}//每月和public float Monthtypesz(int year,int month,String typesz){SQLiteDatabase db=getWritableDatabase();float sum=0;String sql = "select sum(Amoney) from "+TABLE_NAME+" where Ayear=? and Amonth=? and Atypesz=?";Cursor cursor = db.rawQuery(sql, new String[]{year + "", month + "", typesz + ""});if(cursor!=null){while (cursor.moveToNext()){float money = cursor.getFloat(cursor.getColumnIndex("sum(Amoney)"));sum = money;}cursor.close();}db.close();return  sum;}}

Android Studio中sqlite的使用相关推荐

android studio建数据库表,在android studio中创建表
错误:android.database.sqlite.SQLiteException:表用户没有列名(代码1):编译时:INSERT INTO用户名(名称,余额,密码,年龄)VALUES(? ?,?, ...
Android Studio查看SQLite数据库方法大全
本文目录方法1:Stetho Android Studio 中添加代码 Chrome浏览器中调试方法2:SQLite Expert Professional 第一步:导出模拟器数据库文件第二步: ...
Android Studio中通过SQLiteDatabase类操作数据库
SQLite是一款轻型的数据库,主要用在嵌入式系统,它占用的资源非常低.SQLite不依赖第三方软件,也不需要安装.数据库中的信息都包含在一个文件中,这个文件可以自由地复制到其它目录或其它机器上. 在 ...
Android Studio中的手机通讯录开发
Android Studio中的手机通讯录,包含功能(按首字母排序,动态添加) 第一次写博客,也刚踏入工作,想着把自己在项目中遇到的问题,以及自己在工作中所做的项目记录下来,方便以后自己查找知识,一开 ...
android studio字符串转整型,Android Studio 中的FindBugs插件使用，轻松帮你发现Bug (转)...
在日常开发过程中难免会因为一时疏忽而留下一些Bug,这些Bug就是埋在程序里的定时炸弹,如果不能及时铲除就会导致程序的不稳定,异常或闪退的现象,从而导致用户的体验的下降.那么怎么才能找出这些埋在程序里 ...
导入eclipse工程到Android Studio中
ref: 从 Eclipse 迁移至 Android Studio | Android Studio https://developer.android.com/studio/intro/migrat ...
获取Android studio 中的模拟器的界面的点的坐标(Ubuntu)
实现的方法是使用Android studio 中的hierarchyviewer 来获取. 启动模拟器 emulator 打开命令行的终端输入 hierarchyviewer 点击 inspect ...
android studio数据库存储数据,如何使用API 23在android studio中的数据库中存储数据？...
大多数时候我不会发布任何内容,因为我可以在其他帖子中找到我需要的所有内容,但是现在我已经有几天了,您如何在数据库中存储任何内容?这是我的Java代码如何使用API 23在android studi ...
Android如何使用so文件和Android studio中导入so
Android中使用so文件: 做一个PDF阅读的功能,找到一个开源的库,mupdf.下载的是网上编译好的so库,导入到自己项目中的时候一直报错Java.lang.UnsatisfiedLinkErr ...

Android Studio中sqlite的使用

Android Studio中sqlite的使用相关推荐

最新文章

热门文章