CN108259594A - A kind of data interaction system and Relay Server based on block chain - Google Patents
A kind of data interaction system and Relay Server based on block chain Download PDFInfo
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- CN108259594A CN108259594A CN201810026252.XA CN201810026252A CN108259594A CN 108259594 A CN108259594 A CN 108259594A CN 201810026252 A CN201810026252 A CN 201810026252A CN 108259594 A CN108259594 A CN 108259594A
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
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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
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/953—Querying, e.g. by the use of web search engines
- G06F16/9535—Search customisation based on user profiles and personalisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06Q—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES; SYSTEMS OR METHODS SPECIALLY ADAPTED FOR ADMINISTRATIVE, COMMERCIAL, FINANCIAL, MANAGERIAL OR SUPERVISORY PURPOSES, NOT OTHERWISE PROVIDED FOR
- G06Q40/00—Finance; Insurance; Tax strategies; Processing of corporate or income taxes
- G06Q40/04—Trading; Exchange, e.g. stocks, commodities, derivatives or currency exchange
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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
- H04L67/50—Network services
- H04L67/56—Provisioning of proxy services
- H04L67/568—Storing data temporarily at an intermediate stage, e.g. caching
Abstract
The present invention proposes a kind of application system based on block chain, the system comprises one or more clients, the full meshed network of block chain, one or more Relay Servers, the full meshed network of block chain is connected by the full meshed network of one or more block chains and is formed, at least one full node of block chain in one or more of Relay Server connection full meshed networks of block chain, for safeguarding data buffer storage, to serving data；One or more of Relay Servers are provided by one or more relay services quotient；One or more of clients further include relay switch, in order to which user's selection opens or closes relay services, when user selects to close relay services, the client directly carries out data interaction with the full meshed network of block chain, when user selects to open relay services, the client carries out data interaction by Relay Server and the full meshed network of block chain.The system can reduce cost and be changed, while realize automatic push function by Relay Server with risk, trace back data, improve data-handling efficiency.
Description
Technical field
The present invention relates to technical field of data processing, more particularly to a kind of data interaction system based on block chain and in
After server.
Background technology
Traditional centralization data interaction system be although Internet technology use typical successful case, but there are still with
Some lower drawbacks：
1st, security risks
In centralized system, the personal information of user, account information, credit information, Transaction Information are all deposited in center
Change in platform, these information, which may be stolen, is either sold to other people for precisely launching advertisement or endangering the abuse of bigger.
In addition, platform can also take care of the fund of user as exchange intermediary, thus there are the risks that platform embezzles funds.More pole
The situation at end, when platform meets with hacker attack, the risk that fund is stolen will bigger.
2nd, oligarchization and monopolization
After Web2.0, there are the giants such as Google, Amazon, facebook in the U.S., and China is tri- big giants of BAT.It is huge
It is all that medium-sized and small enterprises are too far behind to catch up that head enterprise is many in terms of data source, channel, they are as multiple in phagocytosis as the data beast of prey
Data source, final very possible formation data hegemony.Since centralization platform has grasped vast resources, can be easy to not
With user setting difference threshold, thus there are the risks of unfair competition.Cost of competition is also controlled by centralization platform simultaneously
System, eventually leads to the rising of transaction cost.
4th, the problem of data are easily tampered
In centralization data interaction system, since data are simply stored in the database of centralization, easy quilt
It distorts.For example platform cheating changes grading system for trade company or forges transaction data etc., can cause system authenticity, fairness
Risk.
Invention content
It, can it is an object of the invention to propose a kind of data interaction system and Relay Server based on block chain
Reduce the functions such as cost and risk, trace back data modification.Meanwhile in the data interaction system of block chain provided by the invention,
Relay Server also is introduced between common recognition node and applications client, on the one hand plays the role of data buffer storage, on the other hand
Data service, the service before being read including data by client, such as data cached arrangement, sequence are provided, further include data
Customer transaction is such as submitted in the service being written into before block chain, accelerates the treatment effeciency of system.
To achieve the above object, it is as follows to provide a kind of technical solution by the present invention：
A kind of data interaction system based on block chain, the system comprises：One or more clients, block chain save entirely
Spot net, one or more Relay Servers, the full meshed network of block chain is by one or more full meshed networks of block chain
It connects and is formed, it is characterised in that：
The client is for data displaying, data input；
At least one full node of block chain in one or more of Relay Server connection full meshed networks of block chain, is used
In safeguard data buffer storage, to serving data；
The full meshed network of block chain is kept accounts for distributed；
One or more of Relay Servers are provided by one or more relay services quotient；One or more of clients
End further includes relay switch, in order to which user's selection opens or closes relay services, when user selects to close relay services, and institute
It states client and directly carries out data interaction with the full meshed network of block chain, when user selects to open relay services, the client
End carries out data friendship by the Relay Server that the selected relay services quotient of the user provides and the full meshed network of block chain
Mutually.
Preferably, the Relay Server preserves the database of the data interaction system and current synchronization blocks
Height H, the Relay Server are described current same according to being highly more than on the prefixed time interval inquiry full meshed network of block chain
The newly-increased block of block height H is walked, newly-increased area's transaction data in the block is saved in database described in Relay Server
In respective table, and current sync block height described in synchronized update is H '.
Preferably, when user is asked by client input inquiry, the request is sent to Relay Server,
The Relay Server scans for inquiring, and search result is returned to user in its database table preserved.
Preferably, for user by client submission transaction request to Relay Server, the Relay Server please
Data is asked to be submitted to block chain, and set the transaction is most higher by block height H_limit.
Preferably, the block chain handles the transaction, and the Relay Server is read according to prefixed time interval
The new block data of block chain are simultaneously recorded in database, if when the new block that in previous round, Relay Server obtains
Data height is H1~H2, then：
①H_limit>=H2 then traverses the new block, if finding the ID of the transaction in the new block data,
Then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；If it completes
It traverses but does not find the transaction, then next round is waited for synchronize block data result；
②H_limit<H1 then shows the Fail Transaction, directly notifies client Fail Transaction, closing the transaction；
③H1<=H_limit<H2 then traverses the new block, if finding the transaction in the new block data
ID then illustrates that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；It is if complete
It does not find into traversal but the transaction, then shows the Fail Transaction, directly notify client Fail Transaction, closing the transaction.
Preferably, the Relay Server has automatic push function, when user reaches the standard grade, pushes and uses to user
The relevant information in family.
Preferably, the Relay Server preserves user interest table interest, and the interest table includes emerging
Interesting information, recommendation information, the interest information are used for the search keyword information that synchronous recording user is inputted by client.
Preferably, the Relay Server is also periodically according to the transaction data on block chain, described in update
The recommendation information in interest tables.
Preferably, different propelling data selection strategies may be used in different Relay Server providers, including
It selects commercial product recommending information according to trading volume or selects last updated dependent merchandise as recommendation information.
Preferably, the client can be turned on and off the push function of the Relay Server, specially：If
User wants to close the automatic push function, then user can submit turn-off request in client, described in Relay Server modification
" push switch " flag bit of user described in database.
Preferably, the client also is able to show multiple relay services quotient, so that user is in multiple relay services
Quotient switches at any time.
The present invention also provides a kind of Relay Servers, apply to the data interaction system based on block chain, the system
Including：One or more clients, the full meshed network of block chain, the full meshed network of block chain is by one or more block chains
Full meshed network is connected and is formed, and the Relay Server connects at least one full node of block chain, it is characterised in that：In described
Database, current synchronization blocks height H are preserved after server, the Relay Server includes updating unit, automatic push list
Member, synchronization unit；
The updating unit updates the data the user interest information in library for the input search term based on user and determines
Recommendation information of the phase based on the transaction data update user on block chain；
The automatic push unit is used for when user reaches the standard grade, to user's push and the relevant recommendation of the user that reaches the standard grade
Breath；
The synchronization unit is used to highly be more than described work as according on the prefixed time interval inquiry full meshed network of block chain
Newly-increased area's transaction data in the block is saved in the database by the newly-increased block of preamble block height H, and is synchronized more
The new current sync block height is H '.
Based on application system provided by the present invention, block chain technology can be made full use of to cause application system platform
Merchandise safer, meanwhile, introduce Relay Server, the services such as data buffer storage, data processing be provided, can more rationally,
Efficiently promote the data processing of block chain.
Description of the drawings
Fig. 1 is the logical architecture layer structure of the data interaction system based on block chain of the embodiment of the present invention；
Fig. 2 is the physical structure of the data interaction system based on block chain of the embodiment of the present invention；
Fig. 3 be the embodiment of the present invention the data interaction system based on block chain in each node schematic diagram data；
Fig. 4 is the data interaction system and conventional center data interaction system based on block chain of the embodiment of the present invention
Structure Comparison figure.
Specific embodiment
Block chain is substantially the database of a decentralization, be it is a succession of using cryptography method generate it is associated
Data block contains the information that the whole network is merchandised in a period of time in each data block, for verify the validity of its information and
Produce next block.Block chain is in a manner of decentralization and going trustization, comes one authentic data library of collective's maintenance
Technical solution.Therefore, block chain is referred to as a kind of technology of whole people's book keeping operation, can be understood as in other words a kind of distributed total
Account technology.
Intelligent contract is the computer program that can perform agreement terms automatically, and why block chain is considered as a kind of top
The technology for the property covered, main is exactly because can realize intelligent contract on block chain.Intelligent contract is not defined still by code
And enforced by code, it is fully automated and can not intervene.Intelligent contract is decentralization, is not relying on single
The server of centralization, but it is distributed, it is stored on block chain, by network node come automatic running.
As shown in Figure 1, one embodiment of the invention provides a kind of logical architecture layer of the data interaction system based on block chain
Structure, including client, Relay Server, intelligent contract, block chain bottom, wherein, the specific descriptions of each layer of structure are such as
Under：
1st, client：
Client can be browser or multipad or cell phone application etc..Client is used to show
Data provide user interface, wherein can even include user is allowed directly to submit intelligent contract code.In addition, client
It can also include wallet function -- including transferring accounts and Private key management function.Client is by taking multipad as an example in the present invention.
2nd, Relay Server：
A full node of block chain is connected, safeguards data buffer storage.Relay Server can also wrap serving data
It includes client and reads the service before data, such as data buffer storage is arranged, such as establish and index or carried out point according to user
The work such as class, screening, sequence；Also include to the service before the write-in transaction of block chain.Even, as long as user is ready, we may be used also
Relay Server to be allowed to record and analyzes the custom and preference of user, by data active " feeding " to user.Generally, relay services
Device is equivalent to an agency of block chain, has played the effect of data stewardship.
Meanwhile this data stewardship is not essential, client can select different middle following the services according to the needs of oneself
Be engaged in quotient, can also select, without using relaying, directly to read data to block chain by client or upload and merchandise.
Data interaction system is by taking E-commerce platform system as an example, in traditional centralization electric business pattern, data peace
Platform function is all in the server of centralization.And in this framework proposed by the present invention, data are in block link layer, data displaying
With user data input in client, relay layer realizes preparation before digital independent, simultaneously as the independence of data Layer
Property, relaying can be provided by arbitrary service provider, it might even be possible to not selected using relaying.So as to form benign competition, favorably
In the fractionation of whole system function, share out the work and help one another, ultimately form benign business zoology.
We are contemplated that, if realizing an e-commerce system in this mode, all data become
The public account book of block chain, will not be monopolized by any electric business platform.And electric business enterprise provides the work of data buffer storage, data stewardship
With, and can there are multiple electric business to provide such service for client, so as to form benign competition or form differentiated service.
Data and service separate, and realize more reasonable and efficient resource allocation.
3rd, intelligent contract：Include the various intelligent contracts in application system.
4th, block chain bottom：It is responsible for distributed book keeping operation function, including services such as common recognition algorithm, actuator, network, communications.
Data interaction system proposed by the invention is not limited to E-commerce platform system, can also include existing various
Application platform system, such as social platform system, Video Applications system, can apply to most of application system.
In view of the description of the logical architecture layer structure of above system, the embodiment of the present invention also provides a kind of based on block chain
The physical structure of data interaction system, as shown in Fig. 2, the data interaction system based on block chain includes three kinds of joint forms：
Complete account book is known together, keeps accounts and is preserved in the node 1. full node is known together, the transaction for being responsible for entire block chain；2. Relay Server section
Point connects full node, and the partial data of user's care is periodically read to block chain, and arranged in advance, including data point
Class, screening, sequence, analysis consumer taste so as to carry out data-pushing, may also include transaction cochain before service, such as to merchandise into
It is first-class that row format processing re-sends to block chain；3. client node is responsible for data displaying, transaction data input, intelligent contract
The functions such as parameter input, client node can be read data by Relay Server or directly read data from full node.
Client shows multiple relay services quotient, so that user switches at any time.Client also provides relay switch, in user distrusts
When server, it can select to close relay services, the reading and write-in of data are all by client and block chain direct interaction, shape
Into client 3 shown in Fig. 2 and the data interactive mode of the full node of block chain, under this direct interaction mode, without data
Push function.
Logical architecture layer structure and object based on Fig. 1 of the present invention and the data interaction system shown in Fig. 2 based on block chain
Structure chart is managed, in Relay Server proposed by the present invention, database table structure corresponding with data interaction system is designed, such as schemes
The schematic diagram data of each node shown in 3.The data interaction system of the present embodiment by taking electric business platform application system as an example, according to
Commodity intelligence contract template designs the corresponding table Goods of commodity, stores the corresponding data of newest commodity.The Goods tables
Field is designed as each attribute in commodity intelligence contract template, such as trade name, commodity contract address, seller ID, commodity number
Amount, commodity price etc..Designing user interest Table I nterests, includes field：User ID, interest keyword, push switch push away
Recommend commodity etc..
Relay Server preserves a database and current synchronization blocks height H, every certain time interval (such as 1 second)
It inquires in block chain network and is highly more than the newly-increased block of H, it is assumed that current block chain block height is H ', then reads high in block chain
All pieces for H+1 to H ' are spent, and these newly-increased transaction data in the block are saved in the corresponding of Relay Server database
In table, and synchronization blocks are highly updated to H '.
The concrete function of Relay Server by taking E-commerce platform system as an example is described below in conjunction with specific embodiment：
First part：User's search commercial articles
Step 1, user inputs commercial articles searching condition in client, and such as keyword " bluetooth headset ", request is sent to relaying
Server.Step 2, Relay Server is in the database according to user's conditional search commodity table, and returned data.It is searched to improve
Rope efficiency, certain frequent fields as search condition can establish index in commodity table.
Second part：User changes item property
Step 1：Seller A changes the price of commodity Good1 in client and submits to Relay Server；
Step 2：Relay Server is packaged the transaction, and request data is submitted to block by transaction correct format
Chain, the transaction call commodity intelligence and setPrice () method of about Good1 in block chain, change price attributes, and record
Lower transaction id：Tx_id, and set the transaction is most higher by block height as H_limit；
Step 3：Block chain handles the transaction；
Step 4：Relay Server reads the new block data of block chain by certain time interval and relaying number is recorded
According in library, it is assumed that the data height when the new block that in previous round, Relay Server obtains be H1~H2, if 1. H1<=H_
limit<=H2 then traverses these newly-increased blocks, if finding the transaction that transaction id is tx_id in these block datas, says
Bright above-mentioned transaction has succeeded cochain, exits traversal, and notify the client transaction results, goes to step 5；If traversal is completed not send out
The now transaction then waits for next round to synchronize block data result.②H_limit<H1 then shows Fail Transaction, directly notifies client
Fail Transaction is held, goes to step 5；③H_limit>H2 then traverses the new block, if finding transaction in these new block data
ID be tx_id transaction, then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify that transaction is tied described in client
Fruit, closing the transaction；If completing traversal but not finding the transaction, next round is waited for synchronize block data result.
Step 5：It completes.
Part III：Automatic push data function
Step 1:Such as the step 1 of first part's user's search commercial articles, user B input keywords " bluetooth headset " search for quotient
Product, request are sent to Relay Server.In the step 2 of above-mentioned first part, Relay Server is returning to the same of corresponding data
When, user B is found out in interest tables, the addition keyword " bluetooth headset " in " interest keyword " row；
Step 2：Relay Server periodically according to the transaction data on block chain, updates in interest tables and " recommends quotient
Product " field data.Different propelling data selection strategies may be used in different Relay Server providers.It for example, can root
Recommendations are selected as according to trading volume, last updated dependent merchandise can also be selected as recommendation.That is, different relaying
Service provider provides differentiated service, forms benign market competition, also provides more selections to the user；
Step 3：When user B reaches the standard grade, the Recommendations information of user B in interest tables is pushed to by Relay Server
Client；
Step 4：When user B wants to close this function, it can submit and ask in client, Relay Server update
" push switch " flag bit of the user, is set to False in interests tables, in off position when, Relay Server is not
Recommending data is pushed to client, under default situations, " push switch " flag bit in interests tables is " True ".
Part IV：Close or select other Relay Servers
Client shows multiple relay services quotient, so that user switches at any time.
Client also provides relay switch, when user distrusts Relay Server, can select to close relay services, number
According to reading and write-in all by client and block chain direct interaction, and there is no data-pushing function.
Fig. 4 illustrates the data interaction system provided by the invention based on block chain and conventional center data interaction system
Structure Comparison figure, relative to centralized system of the prior art, the data interaction system provided by the invention based on block chain
System can make full use of block chain technology so that the transaction of application system platform is safer.And to existing block chain technology
Be improved, introduce Relay Server, the services such as data buffer storage, data processing are provided, can more rationally, efficiently promote
The data processing of block chain.
Hardware, processor can directly be used to perform with reference to the method or algorithm that the embodiments described herein describes
The combination of software module or the two is implemented.Software module can be placed in random access memory, memory, read-only memory, electricity can
Well known in programming ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In the storage medium of arbitrary other forms.
It is understood that for those of ordinary skill in the art, it can be conceived with the technique according to the invention and done
Go out other various corresponding changes and deformation, and all these changes and deformation should all belong to the protection model of the claims in the present invention
It encloses.
Claims (10)
1. a kind of data interaction system based on block chain, the system comprises：One or more clients, block chain save entirely
Spot net, one or more Relay Servers, the full meshed network of block chain is by one or more full nodes of block chain
Network connection and formed, it is characterised in that：
The client is for data displaying, data input；
At least one full node of block chain in one or more of Relay Server connection full meshed networks of block chain, for tieing up
Protect data buffer storage, to serving data；
The full meshed network of block chain is kept accounts for distributed；
One or more of Relay Servers are provided by one or more relay services quotient；One or more of clients are also
Including relay switch, in order to which user's selection opens or closes relay services, when user selects to close relay services, the visitor
Family end directly carries out data interaction with the full meshed network of block chain, and when user selects to open relay services, the client is led to
It crosses the Relay Server that the selected relay services quotient of user provides and carries out data interaction with the full meshed network of block chain.
2. the system as claimed in claim 1, which is characterized in that the Relay Server preserves the data interaction system
Database and current synchronization blocks height H, the Relay Server save entirely according to prefixed time interval inquiry block chain
Highly it is more than the newly-increased block of the current sync block height H in spot net, newly-increased area's transaction data in the block is preserved
Into database described in Relay Server, and current sync block height described in synchronized update is H '.
3. system as claimed in claim 2, which is characterized in that described when user is asked by client input inquiry
Request is sent to Relay Server, and the Relay Server scans for inquiring in its database table preserved, and
Search result is returned into user.
4. system as claimed in claim 2, which is characterized in that user submits transaction request to relay services by client
Request data is submitted to block chain by device, the Relay Server, and set the transaction is most higher by block height H_
limit。
5. system as claimed in claim 4, which is characterized in that the block chain handles the transaction, the relay services
Device reads the new block data of block chain according to prefixed time interval and is recorded in database, if working as previous round
In, the data height for the new block that Relay Server obtains is H1 ~ H2, then：
H_limit>=H2 then traverses the new block, if finding the ID of the transaction in the new block data,
Then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；If
It completes traversal but does not find the transaction, then next round is waited for synchronize block data result；
H_limit<H1 then shows the Fail Transaction, directly notifies client Fail Transaction, closing the transaction；
H1<=H_limit<H2 then traverses the new block, if finding the ID of the transaction in the new block data,
Then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；If
It completes traversal but does not find the transaction, then show the Fail Transaction, directly notify client Fail Transaction, closing the transaction.
6. system as claimed in claim 2, the Relay Server has automatic push function, when user reaches the standard grade, in
Information related to user can be pushed after server to user.
7. system as claimed in claim 6, which is characterized in that the Relay Server preserves user interest table
Interest, the interest table include interest information, recommendation information, and the interest information leads to for synchronous recording user
Cross the search keyword information of client input.
8. a kind of Relay Server applies to the data interaction system based on block chain, the system comprises：It is one or more
Client, the full meshed network of block chain, the full meshed network of block chain are connected by the full meshed network of one or more block chains
And formed, the Relay Server connects at least one full node of block chain, it is characterised in that：The Relay Server is preserved
Database, current synchronization blocks height H, the Relay Server include updating unit, automatic push unit, synchronization unit；
The updating unit updates the data user interest information and regular base in library for the input search term based on user
In the recommendation information of the transaction data update user on block chain；
The automatic push unit is used for when user reaches the standard grade, to user's push and the relevant recommendation information of the user that reaches the standard grade；
The synchronization unit is used for described current same according to being highly more than on the prefixed time interval inquiry full meshed network of block chain
The newly-increased block of block height H is walked, newly-increased area's transaction data in the block is saved in the database, and synchronized update institute
Current sync block height is stated as H '.
9. Relay Server as claimed in claim 12, which is characterized in that during user is given by client submission transaction request
After server, request data is submitted to the block chain by the Relay Server, and set the transaction is most higher by block height
Spend H_limit.
10. Relay Server as claimed in claim 13, which is characterized in that the block chain handles the transaction, in described
The new block data of block chain are read according to prefixed time interval after server and be recorded in database, if working as previous round
In, the data height for the new block that Relay Server obtains is H1 ~ H2, then：
H_limit>=H2 then traverses the new block, if finding the ID of the transaction in the new block data,
Then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；If
It completes traversal but does not find the transaction, then next round is waited for synchronize block data result；
H_limit<H1 then shows the Fail Transaction, directly notifies client Fail Transaction, closing the transaction；
H1<=H_limit<H2 then traverses the new block, if finding the ID of the transaction in the new block data,
Then illustrate that above-mentioned transaction has succeeded cochain, exits traversal, and notify transaction results described in client, closing the transaction；If
It completes traversal but does not find the transaction, then show the Fail Transaction, directly notify client Fail Transaction, closing the transaction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026252.XA CN108259594B (en) | 2018-01-11 | 2018-01-11 | Data interaction system based on block chain and relay server |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810026252.XA CN108259594B (en) | 2018-01-11 | 2018-01-11 | Data interaction system based on block chain and relay server |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108259594A true CN108259594A (en) | 2018-07-06 |
| CN108259594B CN108259594B (en) | 2020-02-18 |
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