/**
*
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
}
你说的是sqlite数据库吧,不应该叫android数据库。我来举个例你仿写就行:
SQLiteDatabase database = SQLiteDatabase.openOrCreateDatabase(databaseFilename, null)// 获得.db文件的绝对路径databaseFilename
String sql = "select score from list where id='10' "//list是你的表名
Cursor cursor = database.rawQuery(sql,new String[]{})
while(cursor.moveToNext())
{
int nameColumnIndex1 = cursor.getColumnIndex("score")
String strValue1=cursor.getString(nameColumnIndex1)
}
欢迎分享,转载请注明来源:内存溢出
评论列表(0条)