Android 数据库 大量插入 事务开启

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

 publicstaticboolean insert(SQLiteOpenHelper openHelper,
            RemoteAppInfo appInfo) {
        if (null == appInfo) {
            returntrue;
        }
        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();
            }
        }
        returnfalse;
    }  

    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

publicstaticboolean insert(SQLiteOpenHelper openHelper,
        List<RemoteAppInfo> list) {
    boolean result = true;
    if (null == list || list.size() <= 0) {
        returntrue;
    }
    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();
        returnfalse;
    } finally {
        try {
            if (null != db) {
                db.endTransaction();
                db.close();
            }
        } catch (Exception e) {
            e.printStackTrace();
        }
    }
    returntrue;
}  

耗时：2968ms

3、 开启事务批量插入，使用SQLiteStatement

  publicstaticboolean insertBySql(SQLiteOpenHelper openHelper,
            List<RemoteAppInfo> list) {
        if (null == openHelper || null == list || list.size() <= 0) {
            returnfalse;
        }
        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) {
                    returnfalse;
                }
            }
            db.setTransactionSuccessful();
        } catch (Exception e) {
            e.printStackTrace();
            returnfalse;
       } finally {
            try {
                if (null != db) {
                    db.endTransaction();
                    db.close();
                }
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        returntrue;
    }

耗时：1365ms

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