大佬教程收集整理的这篇文章主要介绍了SQLite数据库存储，大佬教程大佬觉得挺不错的，现在分享给大家，也给大家做个参考。
方法一、命令行模式。在环境变量Path中配置Platform-tools的路径，输入 adb sHell，输入 cd /data/data/cn.bzu.tong.sqlite/databases，输入 sqlite3 BookStore.db，输入 .table查看数据库中的表，输入.scheme,查看建表语句，输入 SELEct * from Book查看表中内容（自己运行显示不出内容）。
方法二、Navicat模式。模拟器运行，点击Create database等按钮，每一次都将模拟器中的BookStore.db导出，在Navicat中新建连接后导入该数据库，打开book表查看表中信息。
package cn.bzu.tong.sqlite; import androID.app.Activity; import androID.content.ContentValues; import androID.database.cursor; import androID.database.sqlite.sqliteDatabase; import androID.os.bundle; import androID.util.Log; import androID.vIEw.Menu; import androID.vIEw.VIEw; import androID.vIEw.VIEw.onClickListener; import androID.Widget.button; import cn.bzu.tong.sqList.R; import cn.bzu.tong.sqlite.db.DBHelper; public class MainActivity extends Activity { private DBHelper dbHelper; private button createDatabase,addData,updateData,deleteData,queryData; @OverrIDe protected voID onCreate(Bundle savedInstanceStatE) { super.onCreate(savedInstanceStatE); setContentVIEw(R.layout.activity_main); dbHelper = new DBHelper(this,"BookStore.db",null,2); queryData = (button) findVIEwByID(R.ID.query_data); deleteData = (button) findVIEwByID(R.ID.delete_data); updateData = (button) findVIEwByID(R.ID.update_data); addData = (button) findVIEwByID(R.ID.add_data); createDatabase = (button) findVIEwByID(R.ID.creat_databasE); createDatabase.setonClickListener(new OnClickListener() { @OverrIDe public voID onClick(View view) { dbHelper.getWritableDatabase(); } }); addData.setonClickListener(new OnClickListener() { @OverrIDe public voID onClick(View view) { sqliteDatabase db = dbHelper.getWritableDatabase(); ContentValues values = new ContentValues(); //开始组装第一条数据 values.put("name","The Da Vinci Code"); values.put("author","Dan brown"); values.put("pages",454); values.put("price",16.96); db.insert("Book",values);//插入第一条数据 values.clear(); //开始组装第二条数据 BACkground-color: rgb(153,"The Lost Symbol"); BACkground-color: rgb(153,510); BACkground-color: rgb(153,19.95); BACkground-color: rgb(153,values);//插入第二条数据 } }); updateData.setonClickListener(new OnClickListener() { @OverrIDe public voID onClick(View view) { sqliteDatabase db = dbHelper.getWritableDatabase(); ContentValues values = new ContentValues(); values.put("price",10.99); db.update("Book",values,"name=?",new String[]{"The Da Vinci Code"}); } }); deleteData.setonClickListener(new OnClickListener() { @OverrIDe public voID onClick(View view) { sqliteDatabase db = dbHelper.getWritableDatabase(); db.delete("Book","pages > ?",new String[]{"400"});//范围 } queryData.setonClickListener(new OnClickListener() { @OverrIDe public voID onClick(View view) { sqliteDatabase db = dbHelper.getWritableDatabase(); //查询Book表中所有数据 cursor cursor = db.query("Book",null); if(cursor.movetoFirst()){ do{ //遍历cursor对象，取出数据并打印 String name = cursor.getString(cursor.getcolumnIndex("name")); String author = cursor.getString(cursor.getcolumnIndex("author")); int pages = cursor.geTint(cursor.getcolumnIndex("pages")); double price = cursor.getDouble(cursor.getcolumnIndex("price")); Log.d("MainActivity","book name is "+Name); BACkground-color: rgb(255,"book author is "+author); BACkground-color: rgb(255,"book page is "+pages); BACkground-color: rgb(255,"book price is "+pricE); }while(cursor.movetoNext()); } cursor.close(); } }); } @OverrIDe public Boolean onCreateOptionsMenu(Menu menu) { // Inflate the menu; this adds items to the action bar if it is present. getMenuInflater().inflate(R.menu.main,menu); return true; } }
package cn.bzu.tong.sqlite.db; import androID.content.Context; import androID.database.sqlite.sqliteDatabase; import androID.database.sqlite.sqliteDatabase.cursorFactory; import androID.database.sqlite.sqliteOpenHelper; import androID.Widget.Toast; public class DBHelper extends sqliteOpenHelper { public static final String create_table_BOOK = "create table book(" + "ID INTEGER PRIMary key autoincrement," + "author text," + "price real," + "pages integer," + "@R_375_4687@t)"; private Context mContext; public static final String create_table_category="create table category(ID INTEGER PRIMary key autoincrement," + "category_@R_375_4687@t,category_code Integer)"; public DBHelper(Context context,String name,cursorFactory factory,int version) { super(context,name,factory,version); mContext = context; } @OverrIDe public voID onCreate(sqliteDatabase db) { db.execsql(create_table_BOOK); db.execsql(create_table_category); Toast.makeText(mContext,"create succeeded",Toast.LENGTH_SHORT).show(); } @OverrIDe public voID onUpgrade(sqliteDatabase db,int oldVersion,int newVersion) { db.execsql("drop table if exists Book"); db.execsql("drop table if exists category"); onCreate(db); } }
<linearLayout xmlns:androID="http://scheR_988_11845@as.androID.com/apk/res/androID" xmlns:tools="http://scheR_988_11845@as.androID.com/tools" androID:layout_wIDth="match_parent" androID:layout_height="match_parent" tools:context=".MainActivity" androID:orIEntation="vertical" > <button androID:ID="@+ID/creat_database" androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:text="Create database" /> <button androID:ID="@+ID/add_data" androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:text="Add Data"/> <button androID:ID="@+ID/update_data" androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:text="update Data"/> <button androID:ID="@+ID/delete_data" androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:text="delete Data"/> <button androID:ID="@+ID/query_data" androID:layout_wIDth="match_parent" androID:layout_height="wrap_content" androID:text="query Data"/> </linearLayout>
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