我想在SQLite數據庫中存儲數據

-1

我想解決的問題，其中AdapterClass有方法的值不插入到database.insert("CUS_MENU", null, ocv)和問題也顯示在這行數據不存儲在sqlite數據庫。我想在SQLite數據庫中存儲數據

public class AdapterClass 
{ 
    private Context context; 
    private SQLiteDatabase database; 
    CreateDB dbHelper; 
    private static String DATABASE_TABLE=" "; 
    public AdapterClass(Context pcontext, String pDBTableName) 
    { 
     // TODO Auto-generated constructor stub 
     this.context = pcontext; 
     this.DATABASE_TABLE = pDBTableName; 
    } 

    public AdapterClass Open() throws SQLException 
    { 
     dbHelper=new CreateDB(context); 
     database=dbHelper.getWritableDatabase(); 
     return this;  
    } 

    // To Insert Record 
    public long insertquery(String[] pColumnNames, String[] pColumnValues) { 

     ContentValues initialValues = createContentValues(pColumnNames,pColumnValues); 
     return database.insert(DATABASE_TABLE, null, initialValues); 

    } 
    // Split the sting into two parts 
    public void addOrder(String s, int qty){ 
     ContentValues ocv = new ContentValues(); 
     String a[] = s.split("-"); 
     String price = a[1].replaceAll("[^0-9]", ""); 

     int total = Integer.parseInt(price)*qty; 

     ocv.put("PRICE", price); 
     ocv.put("NAME", a[0]); 
     ocv.put("QTY", qty); 
     ocv.put("TOTAL", total); 
     //db=this.getWritableDatabase(); 
     database.insert("CUS_MENU", null, ocv); 
     database.close(); 
    } 

    }

這orderscreen類錯誤，在顯示這些線order = new AdapterClass(this)和order.addOrder(s,i)。請任何人幫助解決這個問題。

public class OrderScreen extends Activity implements OnClickListener { 
TextView orderitem; 
EditText Quantity,devide_quanity; 
Button Place_Order; 
String tempstring; 
Integer i; 
String s; 
String quanityforsoup; 
StringBuilder orderdata=null; 
AdapterClass order = null; 

public void onCreate(Bundle savedInstanceState) { 
super.onCreate(savedInstanceState); 
setContentView(R.layout.order_screen); 

     orderitem =(TextView)findViewById(R.id.orderitem); 
     Quantity =(EditText)findViewById(R.id.Quantity); 
     Place_Order =(Button)findViewById(R.id.Place_Order_btn); 

     order = new AdapterClass(this); 
     Place_Order.setOnClickListener(this); 

     s= getIntent().getStringExtra("order"); 
     String a[] = s.split("-"); 
    } 

    @Override 
    public void onClick(View v) 
    { 
     //Place_Order.setClickable(false); 
     tempstring=Quantity.getText().toString(); 
     i=Integer.parseInt(tempstring); 
     Toast.makeText(OrderScreen.this, s, Toast.LENGTH_LONG); 
     //String temps=s; 

     // adding the data 
     order.addOrder(s,i); 
     Intent mIntent = new Intent(OrderScreen.this,MenuScreen.class); 
     startActivity(mIntent); 
     finish(); 
     orderitem.setText("You have ordered "+s); 

    }

這是DB Helper類：

public class CreateDB extends SQLiteOpenHelper 
{ 
SQLiteDatabase db; 
public CreateDB(Context context) 
{ 
super(context, DATABASE_NAME, null, DATABASE_VERSION); 
} 
private static final String DATABASE_NAME = "restaurant"; 
private static final int DATABASE_VERSION = 1; 
private static final String MENU= "create table CUS_MENU(_id integer primary key autoincrement, " + "" + "NAME text,"+"QTY text,"+"PRICE text,TOTAL text);"; 

@Override public void onCreate(SQLiteDatabase db) 
{ 
db.execSQL(MENU); 
} 
}

來源

2014-04-10 user3467384

顯示的分貝輔助類 –

任何異常堆棧跟蹤？ – laalto

@laalto at com.example.myapprestaurant.OrderScreen.onClick（OrderScreen.java:55） – user3467384

click事件中寫.show

（）來顯示敬酒。是的，錯誤會在 order = new AdapterClass（this）;你寫的構造是公共AdapterClass（上下文pcontext，字符串pDBTableName） { this.context = pcontext; this.DATABASE_TABLE = pDBTableName; } 那麼你已經傳遞了上下文和表名。檢查你的代碼，即使你寫了意圖移動到其他活動，你正在寫完成（）。檢查，祝你好運

來源

2014-04-10 17:07:59 GvSharma

我想在SQLite數據庫中存儲數據

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