Java

Question

你会怎么做？经过相当多的谷歌搜索后，我还没有找到任何好的资源或解决方案。

Answer 1

首先，确保创建一个新数据库 class，其中包含您需要的表。之后，您可以使用 insertCursorInDb 方法。也调用 open() 一次，这会让你写入数据库。

public class YourDatabase extends SQLiteOpenHelper {

    // If you change the database schema, you must increment the database version.
    public static final int DATABASE_VERSION = 1;
    public static final String DATABASE_NAME = "yourdatabase.db";
    private SQLiteDatabase database;

    public YourDatabase(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    public void open() throws SQLException {
        database = this.getWritableDatabase();
    }

    private void create(SQLiteDatabase database) {
        database.execSQL("CREATE TABLE contacts (TEXT `name`, TEXT `number`)");
    }

    @Override
    public void onCreate(SQLiteDatabase database) {
        create(database);
    }

    // this function depends on the values in your cursor
    public void insertCursorInDb(Cursor cursor) {
        if (cursor != null) {
            while (cursor.moveToNext()) {
                database.execSQL("INSERT INTO contacts(`name`, `number`) VALUES (?, ?)", new String[]{cursor.getString(0), cursor.getString(1)});
            }
            cursor.close();
        }
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        // TODO Auto-generated method stub
    }
}

按照提示，你也可以使用ContentValues，那么就会变成这样：

// this function depends on the values in your cursor
    public void insertCursorInDb(Cursor cursor) {
        if (cursor != null) {
            while (cursor.moveToNext()) {
                ContentValues values = new ContentValues();
                values.put("name", cursor.getString(0));
                values.put("number", cursor.getString(1));
                database.insertOrThrow("contacts", null, values);
            }
            cursor.close();
        }
    }

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sqlite

android

cursor