android批量插入数据效率对比
对比在android中批量插入数据的3中方式对比(各插入1W条数据所花费的时间):
1、 一个一个插入
- /**
- * 向表中插入数据
- *
- * @param openHelper
- * @param appInfo
- * @return
- */
- public static boolean insert(SQLiteOpenHelper openHelper,
- RemoteAppInfo appInfo) {
- if (null == appInfo) {
- return true;
- }
- SQLiteDatabase db = null;
- try {
- db = openHelper.getWritableDatabase();
- ContentValues values = appInfo.getContentValues();
- return -1 != db.insert(RemoteDBHelper.TABLE_APP_REMOTE, null,
- values);
- } catch (Exception e) {
- e.printStackTrace();
- } finally {
- if (null != db) {
- db.close();
- }
- }
- return false;
- }
- for (RemoteAppInfo remoteAppInfo : list) {
- RemoteDBUtil.insert(helper, remoteAppInfo);
- }
耗时:106524ms,也就是106s
2、 开启事务批量插入,使用
SqliteDateBase中的
insert(String table, String nullColumnHack, ContentValues values)
方法
- /**
- * 向表中插入一串数据
- *
- * @param openHelper
- * @param appInfo
- * @return 如果成功则返回true,否则返回flase
- */
- public static boolean insert(SQLiteOpenHelper openHelper,
- List<RemoteAppInfo> list) {
- boolean result = true;
- if (null == list || list.size() <= 0) {
- return true;
- }
- SQLiteDatabase db = null;
- try {
- db = openHelper.getWritableDatabase();
- db.beginTransaction();
- for (RemoteAppInfo remoteAppInfo : list) {
- ContentValues values = remoteAppInfo.getContentValues();
- if (db.insert(RemoteDBHelper.TABLE_APP_REMOTE, null, values) < 0) {
- result = false;
- break;
- }
- }
- if (result) {
- db.setTransactionSuccessful();
- }
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- } finally {
- try {
- if (null != db) {
- db.endTransaction();
- db.close();
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- return true;
- }
耗时:2968ms
3、 开启事务批量插入,使用
SQLiteStatement
- /**
- * 第二种方式批量插入(插入1W条数据耗时:1365ms)
- * @param openHelper
- * @param list
- * @return
- */
- public static boolean insertBySql(SQLiteOpenHelper openHelper,
- List<RemoteAppInfo> list) {
- if (null == openHelper || null == list || list.size() <= 0) {
- return false;
- }
- SQLiteDatabase db = null;
- try {
- db = openHelper.getWritableDatabase();
- String sql = "insert into " + RemoteDBHelper.TABLE_APP_REMOTE + "("
- + RemoteDBHelper.COL_PKG_NAME + ","// 包名
- + RemoteDBHelper.COL_USER_ACCOUNT + ","// 账号
- + RemoteDBHelper.COL_APP_SOURCE + ","// 来源
- + RemoteDBHelper.COL_SOURCE_UNIQUE + ","// PC mac 地址
- + RemoteDBHelper.COL_MOBILE_UNIQUE + ","// 手机唯一标识
- + RemoteDBHelper.COL_IMEI + ","// 手机IMEI
- + RemoteDBHelper.COL_INSTALL_STATUS + ","// 安装状态
- + RemoteDBHelper.COL_TRANSFER_RESULT + ","// 传输状态
- + RemoteDBHelper.COL_REMOTE_RECORD_ID // 唯一标识
- + ") " + "values(?,?,?,?,?,?,?,?,?)";
- SQLiteStatement stat = db.compileStatement(sql);
- db.beginTransaction();
- for (RemoteAppInfo remoteAppInfo : list) {
- stat.bindString(1, remoteAppInfo.getPkgName());
- stat.bindString(2, remoteAppInfo.getAccount());
- stat.bindLong(3, remoteAppInfo.getFrom());
- stat.bindString(4, remoteAppInfo.getFromDeviceMd5());
- stat.bindString(5, remoteAppInfo.getMoblieMd5());
- stat.bindString(6, remoteAppInfo.getImei());
- stat.bindLong(7, remoteAppInfo.getInstallStatus());
- stat.bindLong(8, remoteAppInfo.getTransferResult());
- stat.bindString(9, remoteAppInfo.getRecordId());
- long result = stat.executeInsert();
- if (result < 0) {
- return false;
- }
- }
- db.setTransactionSuccessful();
- } catch (Exception e) {
- e.printStackTrace();
- return false;
- } finally {
- try {
- if (null != db) {
- db.endTransaction();
- db.close();
- }
- } catch (Exception e) {
- e.printStackTrace();
- }
- }
- return true;
- }
耗时:1365ms