CN104967658A - Data synchronization method on multiple devices - Google Patents
Data synchronization method on multiple devices Download PDFInfo
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- CN104967658A CN104967658A CN201510229300.1A CN201510229300A CN104967658A CN 104967658 A CN104967658 A CN 104967658A CN 201510229300 A CN201510229300 A CN 201510229300A CN 104967658 A CN104967658 A CN 104967658A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1095—Replication or mirroring of data, e.g. scheduling or transport for data synchronisation between network nodes
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/27—Replication, distribution or synchronisation of data between databases or within a distributed database system; Distributed database system architectures therefor
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/28—Databases characterised by their database models, e.g. relational or object models
- G06F16/284—Relational databases
- G06F16/285—Clustering or classification
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Abstract
The present invention provides a data synchronization method on multiple devices. The method comprises the steps of identifying the change objects in a terminal device and marking; writing the marked change objects in a local database, stamping time stamps and abstracting into business logs; writing the business logs in a local synchronization table; using a terminal device background to read the business logs in the local synchronization table circularly, submitting and storing in a server end database; deleting the successfully submitted business logs from the local synchronization table; using a server end to read the business logs circularly, analyzing and reducing the business logs one by one; using other terminal devices to obtain the business logs from the server end; playing back the business logs in the local database; recording the current time stamps of the business logs; and noticing an upper-layer interface to update the data. The data synchronization method on the multiple devices of the present invention is suitable for the data synchronization of various mobile devices under an environment not having a network, supports the user edit, and then synchronizes the data to the background after the network is recovered. In addition, according to the present invention, the network utilization rate is improved, and the data access is more efficient and smooth.
Description
Technical field
Belong to mobile communication technology field, particularly relate to based on the method from the data syn-chronization between multiple mobile terminal devices under net environment.
Technical background
The nineties, data syn-chronization did not start from wired connection, if MAC machine is as data center, was undertaken synchronous with terminal equipment (iPod) by FireWire.After 2000, cloud service develops rapidly, as long as be representative with PC/MAC machine, data center has turned to high in the clouds equipment to have network gradually, just can use, as address list, the message backup of micro-letter with recover, App Store.
In recent years along with the high speed development of the Internet and chip technology, the kind of mobile terminal device also gets more and more.Mobile terminal device refers to the computer equipment that can use in movement, such as mobile phone, notebook, panel computer, POS even comprise vehicle-mounted computer and all belong to mobile terminal device, the appearance of these equipment, greatly facilitate and enriched work and the life of people, significant advantage impels people to select to be applicable to the intelligent terminal of oneself according to the demand of oneself.
But, people in use often need to modify to various information, cause stored data message needs in a device than regularly changing, and the data of same type need to be stored in multiple terminal equipment, this creates the terminal consistency and integrity issue that one needs to keep data of the same type in various terminal.Due to the limitation that wireless communication ability self exists, can not carry out exchanges data by interconnection network at any time, the demand that off-line is applied is popularized gradually.
In existing technology, the cloud service access mode of the method for head it off mainly synchronous mode, although this Measures compare is convenient, but existing most of cloud service does not take into full account the characteristic of mobile client, transmitted data amount is very large, for mobile device brings larger computational resource consumption and the network bandwidth to take, make it respond not smooth, efficiently cannot access cloud service easily.
Therefore for meeting the requirement of people for data syn-chronization between each terminal equipment simultaneously in time using multiple mobile terminal devices, and more smooth in visit data process, efficient experience requirements, need to find a kind of novel method of data synchronization, to realize the consistency of data syn-chronization and the fluency of Consumer's Experience between multiple mobile terminal devices.Such application is no longer synchronously mutual with cloud, but directly accesses local file system swap data, and the substitute is, data communicate with high in the clouds on backstage, and data access is asynchronous executions with synchronous two processes.
Summary of the invention
On basis for the shortcoming of prior art, the object of the present invention is to provide and a kind ofly can to meet at the settling mode from the maintenance data final consistency between multi-terminal equipment under net environment.
For achieving the above object, the invention provides the method for data synchronization on a kind of multi-terminal equipment, mainly comprise following step:
(1) in terminal equipment, identify corresponding change object and mark;
(2) the change object of mark is written to local data base;
(3) in the local database, transfer the change object of mark, being stamped timestamp abstract is transaction journal;
(4) transaction journal is write in local synchronization table;
(5) terminal equipment backstage starts synchronous service, and the transaction journal in local synchronization table is read in circulation, and its batch is submitted to server end, stored in server-side database;
(6) submit successful daily record to, transaction journal is deleted from local synchronization table;
(7) transaction journal is read in server end circulation, carries out parsing reduction change object one by one;
(8), after the access of another terminal equipment, up-to-date transaction journal is obtained from server end;
(9) the transaction journal playback in the local database will obtained;
(10) by transaction journal new in access local database, the current time stamp of record transaction journal;
(11), after data syn-chronization work completes, can notify that upper interface removes more new data.
Further, in described step (1), divide change object according to service logic, change object is by global description symbol GUID mark, and the relation between change object is by the association of change object ID.
Further, in described step (2), local data base uses Sqlite database.
Further, in described step (3), the one-shot change of setting change object is stamped timestamp and is encapsulated as a transaction journal.
Further, in described step (4), local synchronization table is the incremental update table safeguarded in terminal equipment, for recording transaction journal.
Further, in described step (5), server-side database is the non-relational database such as MySQL or MongoDB.
Further, in described step (7), if server end does other process when object variation, only need to arrange a series of data processor, by event separately process.
Further, set data processor also comprises following step:
The transaction journal of reading is submitted to processor;
The transaction journal processed is stored in local data base;
Wait for that other terminal equipment obtains and is synchronized to this locality.
Further, in described step (10), record current time stamp, during for obtaining transaction journal next time, server end calculates the Incremental Log list during this period of time.
After reading the detailed description of embodiment of the present invention by reference to the accompanying drawings, the other features and advantages of the invention will become clearly.
This method, compared with available data synchronization scenario, has some advantage following: data access is separated with data syn-chronization, and the displaying of user profile and the retouching operation of user can complete by off-line, and local operation is experienced fast; Server end does not need to provide some change object read-write interfaces, and only need the task processor after maintenance Data synchronization interface and a series of registration, operation expanding only increases task processor, embodies the opening and closing principle in Software for Design; Transaction journal is abstracted into the transaction journal of change object, instead of SQL statement, and transaction journal can dock sqlite in client, in non-relational database such as server end docking MySQL or MongoDB; Server end major function is transaction journal transparent transmission and data backup, can be multiplexing in several applications, saves backstage development cost and development time.
Accompanying drawing explanation
Below in conjunction with accompanying drawing and embodiment, the present invention is further detailed explanation:
Fig. 1 is the flow chart of method of data synchronization on multi-terminal equipment of the present invention
Fig. 2 is server-side transaction log processing flow chart.
Embodiment
In order to make the object, technical solutions and advantages of the present invention clearly, will be described in further detail the specific embodiment of the present invention below.
See Fig. 1, the method for data synchronization be applicable on multi-terminal equipment of the present embodiment, comprises the following steps:
(1) in terminal equipment, identify corresponding change object and mark;
Specifically divide change object according to service logic, change object is by global description symbol GUID mark, and the relation between change object is by the association of change object ID.
(2) the change object of mark is written to local data base;
Local data base uses Sqlite database.
(3) in the local database, transfer the change object of mark, and stamped timestamp, thus abstract in transaction journal;
Be specially, the one-shot change of setting change object is stamped timestamp and is encapsulated as a transaction journal.
Such as: object type, object ID, action type, object properties 1 object properties 2 ... object properties N, timestamp.
(4) transaction journal is write in local synchronization table;
Concrete local synchronization table is the incremental update table that mobile terminal device is safeguarded, for recording transaction journal.
With photo synchronously for example, if user with the addition of a photo, have modified the shooting time of existing two photos, and delete a photo, then can retain 4 transaction journals in local synchronization table, show as follows:
INSERT INTO T_Photo (V0, V1, …, VN);
UPDATE T_ Photo SET F_ExifTime = XX WHERE ID=XX;
UPDATE T_ Photo SET F_ ExifTime = XX WHERE ID=X;
DELETE T_ Photo WHERE ID=XXXX;
The object of local synchronization table preserves the object of change, and its general purpose table structure is as follows:
| Field name | Field purposes | Field type |
| F_ID | Daily record ID | Integer, automatic increase |
| F_CreateTime | The log creation time | Date-time |
| F_Statement | Synchronization log SQL statement | Text |
(5) terminal equipment backstage starts synchronous service, and the transaction journal in local synchronization table is read in circulation, and its batch is submitted to server end, stored in server-side database;
Specific service device client database is the non-relational database such as MySQL or MongoDB.
(6) submit successful daily record to, transaction journal is deleted from local synchronization table;
(7) transaction journal is read in server end circulation, carries out parsing reduction change object one by one;
If be specially server end do when transaction journal changes other process (as user add photo after send PUSH message), only need to arrange a series of data processor, by each transaction journal separately process.
Specifically also comprise following step as shown in Figure 2:
The transaction journal of reading is submitted in processor chained list;
The transaction journal processed is stored in local data base;
Wait for that other terminal equipment obtains and is synchronized to local synchronization table.
(8), after the access of another terminal equipment, up-to-date transaction journal is obtained from server end;
(9) the transaction journal playback in the local database will obtained;
(10) by transaction journal new in access local database, the current time stamp of record transaction journal;
Physical record current time is stabbed, and during for obtaining synchronized transaction daily record next time, server end calculates the Incremental Log list during this period of time.
(11), after data syn-chronization work completes, can notify that upper interface removes more new data.
What finally illustrate is, above embodiment is only in order to illustrate technical scheme of the present invention and unrestricted, although with reference to preferred embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that, can modify to technical scheme of the present invention or equivalent replacement, and not departing from aim and the scope of technical solution of the present invention, it all should be encompassed in the middle of right of the present invention.
Claims (9)
1. the method for data synchronization on multi-terminal equipment, is characterized in that comprising following step:
1) in terminal equipment, identify change object and mark;
2) the change object of mark is written to local data base;
3) in the local database, transfer the change object of mark, stamped the abstract formation transaction journal of timestamp;
4) transaction journal is write in local synchronization table;
5) terminal equipment backstage starts synchronous service, and the transaction journal in local synchronization table is read in circulation, and its batch is submitted to server end, stored in server-side database;
6) in local synchronization table, the successful transaction journal of submission is deleted;
7) transaction journal is read in server end circulation, carries out parsing reduction change object one by one;
8), after the access of another terminal equipment, up-to-date transaction journal is obtained from server end;
9) the transaction journal playback in the local database will obtained;
10) by transaction journal new in access local database, the current time stamp of record transaction journal;
11) upper interface more new data is notified.
2. the method for data synchronization according to claim 1 on multi-terminal equipment, it is characterized in that, in step (1), divide change object according to service logic, change object is by global description symbol GUID mark, and the relation between change object is by the association of change object ID.
3. the method for data synchronization according to claim 1 on multi-terminal equipment, is characterized in that, in step (2), local data base uses Sqlite database.
4. the method for data synchronization according to claim 1 on multi-terminal equipment, is characterized in that, in step (3), the one-shot change of setting change object is stamped timestamp and is encapsulated as a transaction journal.
5. the method for data synchronization according to claim 1 on multi-terminal equipment, it is characterized in that, in step (4), local synchronization table is the incremental update table safeguarded in terminal equipment, for recording transaction journal.
6. the method for data synchronization according to claim 1 on multi-terminal equipment, it is characterized in that, in step (5), server-side database is MySQL or MongoDB non-relational database.
7. the method for data synchronization according to claim 1 on multi-terminal equipment, is characterized in that, in step (7), if server end needs to do extra process when reading transaction journal, then setting data processor, by transaction journal separately process.
8. the method for data synchronization according to claim 7 on multi-terminal equipment, is characterized in that: described step (7) concrete steps are as follows:
The transaction journal of reading is submitted to data processor;
The transaction journal processed is stored in local data base;
Wait for that another terminal equipment obtains and is synchronized to local synchronization table.
9. the method for data synchronization according to claim 1 on multi-terminal equipment, is characterized in that, in step (10), record current time stamp, during for obtaining transaction journal next time, server end calculates the Incremental Log list in this time period.
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Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105279285A (en) * | 2015-11-23 | 2016-01-27 | 上海斐讯数据通信技术有限公司 | Synchronization system and method of relation-type database and non-relation-type database |
| CN105426512A (en) * | 2015-12-01 | 2016-03-23 | 广东电网有限责任公司电网规划研究中心 | Offline editing synchronization method |
| CN105701218A (en) * | 2016-01-14 | 2016-06-22 | 四川长虹电器股份有限公司 | Method for realizing data synchronism of different terminals on database |
| CN106485784A (en) * | 2016-11-28 | 2017-03-08 | 重庆上丞科技有限公司 | Indoor design image processing method based on multi-terminal equipment data syn-chronization |
| CN107515874A (en) * | 2016-06-16 | 2017-12-26 | 阿里巴巴集团控股有限公司 | The method and apparatus of synchronous incremental data in a kind of distributed non-relational database |
| CN107992515A (en) * | 2017-10-27 | 2018-05-04 | 大唐网络有限公司 | Implementation method, device and the storage medium of mongodb affair mechanisms |
| WO2018157602A1 (en) * | 2017-02-28 | 2018-09-07 | 华为技术有限公司 | Method and device for synchronizing active transaction lists |
| CN108717426A (en) * | 2018-05-04 | 2018-10-30 | 苏州朗动网络科技有限公司 | Update method, device, computer equipment and the storage medium of business data |
| CN109271448A (en) * | 2018-09-25 | 2019-01-25 | 武汉达梦数据库有限公司 | It is the data synchronous system and method for platform based on database |
| CN109614444A (en) * | 2018-11-12 | 2019-04-12 | 武汉达梦数据库有限公司 | A kind of data initialization method when data are synchronous |
| CN110704532A (en) * | 2019-09-18 | 2020-01-17 | 南方电网数字电网研究院有限公司 | Method and device for synchronizing data among databases, computer equipment and storage medium |
| CN110888777A (en) * | 2019-11-14 | 2020-03-17 | 艾体威尔电子技术(北京)有限公司 | Method for storing log by using database of POS machine |
| CN111259022A (en) * | 2020-01-13 | 2020-06-09 | 京东方科技集团股份有限公司 | Information synchronization method, synchronization system, computer equipment and medium |
| WO2021018313A1 (en) * | 2019-07-30 | 2021-02-04 | 中科寒武纪科技股份有限公司 | Data synchronization method and apparatus, and related product |
| WO2021027972A1 (en) * | 2019-08-09 | 2021-02-18 | 中科寒武纪科技股份有限公司 | Data synchronization method and apparatus and related product |
| WO2022126974A1 (en) * | 2020-12-16 | 2022-06-23 | 平安科技（深圳）有限公司 | Kafka-based incremental data synchronization method and apparatus, device, and medium |
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| CN105279285B (en) * | 2015-11-23 | 2018-07-24 | 上海斐讯数据通信技术有限公司 | A kind of synchronization system and method for relevant database and non-relational database |
| CN105279285A (en) * | 2015-11-23 | 2016-01-27 | 上海斐讯数据通信技术有限公司 | Synchronization system and method of relation-type database and non-relation-type database |
| CN105426512A (en) * | 2015-12-01 | 2016-03-23 | 广东电网有限责任公司电网规划研究中心 | Offline editing synchronization method |
| CN105701218B (en) * | 2016-01-14 | 2019-05-07 | 四川长虹电器股份有限公司 | Realize that different terminals carry out the synchronous method of data on the database |
| CN105701218A (en) * | 2016-01-14 | 2016-06-22 | 四川长虹电器股份有限公司 | Method for realizing data synchronism of different terminals on database |
| CN107515874A (en) * | 2016-06-16 | 2017-12-26 | 阿里巴巴集团控股有限公司 | The method and apparatus of synchronous incremental data in a kind of distributed non-relational database |
| CN106485784A (en) * | 2016-11-28 | 2017-03-08 | 重庆上丞科技有限公司 | Indoor design image processing method based on multi-terminal equipment data syn-chronization |
| WO2018157602A1 (en) * | 2017-02-28 | 2018-09-07 | 华为技术有限公司 | Method and device for synchronizing active transaction lists |
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| CN107992515A (en) * | 2017-10-27 | 2018-05-04 | 大唐网络有限公司 | Implementation method, device and the storage medium of mongodb affair mechanisms |
| CN108717426B (en) * | 2018-05-04 | 2021-01-05 | 苏州朗动网络科技有限公司 | Enterprise data updating method and device, computer equipment and storage medium |
| CN108717426A (en) * | 2018-05-04 | 2018-10-30 | 苏州朗动网络科技有限公司 | Update method, device, computer equipment and the storage medium of business data |
| CN109271448A (en) * | 2018-09-25 | 2019-01-25 | 武汉达梦数据库有限公司 | It is the data synchronous system and method for platform based on database |
| CN109614444A (en) * | 2018-11-12 | 2019-04-12 | 武汉达梦数据库有限公司 | A kind of data initialization method when data are synchronous |
| WO2021018313A1 (en) * | 2019-07-30 | 2021-02-04 | 中科寒武纪科技股份有限公司 | Data synchronization method and apparatus, and related product |
| WO2021027972A1 (en) * | 2019-08-09 | 2021-02-18 | 中科寒武纪科技股份有限公司 | Data synchronization method and apparatus and related product |
| CN110704532A (en) * | 2019-09-18 | 2020-01-17 | 南方电网数字电网研究院有限公司 | Method and device for synchronizing data among databases, computer equipment and storage medium |
| CN110888777A (en) * | 2019-11-14 | 2020-03-17 | 艾体威尔电子技术(北京)有限公司 | Method for storing log by using database of POS machine |
| CN111259022A (en) * | 2020-01-13 | 2020-06-09 | 京东方科技集团股份有限公司 | Information synchronization method, synchronization system, computer equipment and medium |
| WO2022126974A1 (en) * | 2020-12-16 | 2022-06-23 | 平安科技（深圳）有限公司 | Kafka-based incremental data synchronization method and apparatus, device, and medium |
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