Ormlite开源数据库框架

@DatabaseTable(tableName = "INDEX_READ_TABLE", daoClass = PersonDao.class)
public class Person implements Parcelable, Serializable {

	// id is generated by the database and set on the object automagically
	@DatabaseField(generatedId = true)
	private int id;
	@DatabaseField
	private String name;
	@DatabaseField
	private String sex;
	@DatabaseField
	private int age;

	
	public Person() {
		// TODO Auto-generated constructor stub
	}

	public Person(String name, String sex, int age) {
		super();
		this.name = name;
		this.sex = sex;
		this.age = age;
	}

	public int getId() {
		return id;
	}

	public void setId(int id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public String getSex() {
		return sex;
	}

	public void setSex(String sex) {
		this.sex = sex;
	}

	public int getAge() {
		return age;
	}

	public void setAge(int age) {
		this.age = age;
	}

	public int describeContents() {
		// TODO Auto-generated method stub
		return 0;
	}

	public void writeToParcel(Parcel dest, int flags) {
		// TODO Auto-generated method stub
		dest.writeString(name);
		dest.writeString(sex);
		dest.writeInt(age);
		dest.writeInt(id);
	}

}

public class PersonDao extends BaseDaoImpl<Person, Integer>{

	public PersonDao(Class<Person> dataClass) throws SQLException {
		super(dataClass);
		// TODO Auto-generated constructor stub
	}

	public PersonDao(DatabaseHelper helper) throws SQLException{
		super(helper.getConnectionSource(), Person.class);
	}
	public PersonDao(ConnectionSource connectionSource, Class<Person> dataClass)
			throws SQLException {
		super(connectionSource, dataClass);
		// TODO Auto-generated constructor stub
	}

	public PersonDao(ConnectionSource connectionSource,
			DatabaseTableConfig<Person> tableConfig) throws SQLException {
		super(connectionSource, tableConfig);
		// TODO Auto-generated constructor stub
	}

	public long queryCount(long _Id) throws SQLException {
		QueryBuilder<Person, Integer> queryBuilder = queryBuilder();
    	Where<Person, Integer> where = queryBuilder.where();
    	queryBuilder.setCountOf(true);
    	where.eq("id", _Id);
    	where.and();
        return countOf(queryBuilder.prepare());
	}
	public List<Person> queryList(long _Id) throws SQLException {
		QueryBuilder<Person, Integer> queryBuilder = queryBuilder();
    	Where<Person, Integer> where = queryBuilder.where();
    	where.eq("id", _Id);
    	where.and();
    	queryBuilder.orderBy("id", true);
        return query(queryBuilder.prepare());
	}
}

public class DatabaseHelper extends OrmLiteSqliteOpenHelper {
	
	private Dao<Person, Integer> personDao = null;
    /**
     * 鏋勯?鍑芥暟
     * 
     * @param context
     */
    public DatabaseHelper(Context context) {
        super(context,"person", null, 1);
    }

    /**
     * 鍒濆鍖栨搷浣滐細寤鸿〃
     * 
     * @see com.j256.ormlite.android.apptools.OrmLiteSqliteOpenHelper#onCreate(android.database.sqlite.SQLiteDatabase,
     *      com.j256.ormlite.support.ConnectionSource)
     */
    @Override
    public void onCreate(SQLiteDatabase db, ConnectionSource connectionSource) {
        createTables(db, connectionSource);
    }

    @Override
    public void onUpgrade(SQLiteDatabase db, ConnectionSource connectionSource, int oldVersion, int newVersion) {
        
		if (newVersion <= oldVersion) {
			return;
		}
		
		db.delete("DEMO_TABLE", null, null);
		db.delete("MYPHOTO_LIST_TABLE", null, null);
		db.delete("POST_DRAFT_TABLE" , null, null);
		db.delete("UPLOAD_IMAGE_TABLE", null, null);
		db.delete("INDEX_READ_TABLE", null, null);
		
		createTables(db, connectionSource);

    }
    
    private void createTables(SQLiteDatabase db, ConnectionSource connectionSource) {
        try {
            TableUtils.createTableIfNotExists(connectionSource, Person.class);
        } catch (SQLException e) {
            e.printStackTrace();
        }
    }
    
    public Dao<Person, Integer> getPersonDataDao() throws SQLException {
		if (personDao == null) {
			personDao = getDao(Person.class);
		}
		return personDao;
	}
}

public class MainActivity extends Activity{

	private com.example.helloandroid.data.DatabaseHelper databaseHelper = null;
	@Override
	protected void onCreate(Bundle savedInstanceState) {
		// TODO Auto-generated method stub
		super.onCreate(savedInstanceState);
		TextView tv = new TextView(this);
		StringBuilder sb = new StringBuilder();
		sb.append("person1  1,joy,boy,22");
		PersonDao  dao = null;
		try {
			dao = new PersonDao(getHelper());
			dao.create(new Person("joy", "boy", 22));
			sb.append("\nperson2 2,kim,girl,21");
			dao.create(new Person("kim", "girl", 21));
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		sb.append("\n this db data is:");
		try {
			List<Person> lists = dao.queryList(1);
			for(Person p : lists){
				sb.append("\n"+p.getId()+"::"+p.getName()+"::"+p.getSex()+"::"+p.getAge());
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		tv.setText(sb);
		setContentView(tv);
	}
	@Override
	protected void onDestroy() {
		super.onDestroy();

		/*
		 * You'll need this in your class to release the helper when done.
		 */
		if (databaseHelper != null) {
			OpenHelperManager.releaseHelper();
			databaseHelper = null;
		}
	}
	/**
	 * You'll need this in your class to get the helper from the manager once per class.
	 */
	private com.example.helloandroid.data.DatabaseHelper getHelper() {
		if (databaseHelper == null) {
			databaseHelper = OpenHelperManager.getHelper(this, com.example.helloandroid.data.DatabaseHelper.class);<span style="color:#ff0000;">//在第一次调用这句的时候会创建数据库表，第二次打开应用时不再会创建数据库表，这个可以再logcat观察到</span>
		}
		return databaseHelper;
	}
	
}

上面是我的代码，下面是别人一篇参考文章

http://blog.csdn.net/yzzst/article/details/9359271