Android 数据库 大量插入 事务开启
16lz
2021-01-23
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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