android中在怎么获取数据库数据

android读取数据库可以使用sqlite一些api进行读取，实例如下：

/**

* 查找一条数据

* @param uid

*/

public User find(Integer uid){

SQLiteDatabase db=dbOpenHelper.getReadableDatabase() //创建数据库辅助类

Cursor cursor =db.rawQuery("select * from user where uid=?", new String[]{uid.toString()}) //创建一个游标

if(cursor.moveToFirst()){ //循环遍历查找数组

int uid2=cursor.getInt(cursor.getColumnIndex("uid"))

String uname=cursor.getString(cursor.getColumnIndex("uname"))

String uaddress=cursor.getString(cursor.getColumnIndex("uaddress"))

User user=new User()

user.setUid(uid2)

user.setUname(uname)

user.setUaddress(uaddress)

return user

}

cursor.close()

return null

}

android读取数据库可以使用sqlite一些api进行读取，实例如下：

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/**

* 查找一条数据

* @param uid

*/

public User find(Integer uid){

SQLiteDatabase db=dbOpenHelper.getReadableDatabase() //创建数据库辅助类

Cursor cursor =db.rawQuery("select * from user where uid=?", new String[]{uid.toString()}) //创建一个游标

if(cursor.moveToFirst()){ //循环遍历查找数组

int uid2=cursor.getInt(cursor.getColumnIndex("uid"))

String uname=cursor.getString(cursor.getColumnIndex("uname"))

String uaddress=cursor.getString(cursor.getColumnIndex("uaddress"))

User user=new User()

user.setUid(uid2)

user.setUname(uname)

user.setUaddress(uaddress)

return user

}

cursor.close()

return null

}

android读取数据库可以使用sqlite一些api进行读取，实例如下：

/**

* 查找一条数据

* @param uid

*/

public User find(Integer uid){

SQLiteDatabase db=dbOpenHelper.getReadableDatabase()//创建数据库辅助类

Cursor cursor =db.rawQuery("select * from user where uid=?", new String[]{uid.toString()})//创建一个游标

if(cursor.moveToFirst()){ //循环遍历查找数组

int uid2=cursor.getInt(cursor.getColumnIndex("uid"))

String uname=cursor.getString(cursor.getColumnIndex("uname"))

String uaddress=cursor.getString(cursor.getColumnIndex("uaddress"))

User user=new User()

user.setUid(uid2)

user.setUname(uname)

user.setUaddress(uaddress)

return user

}

cursor.close()

return null

}

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