CN108599969A - The method and apparatus of data sharing in a kind of block chain - Google Patents
The method and apparatus of data sharing in a kind of block chain Download PDFInfo
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- CN108599969A CN108599969A CN201810412990.8A CN201810412990A CN108599969A CN 108599969 A CN108599969 A CN 108599969A CN 201810412990 A CN201810412990 A CN 201810412990A CN 108599969 A CN108599969 A CN 108599969A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L12/00—Data switching networks
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- 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
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Abstract
The present invention provides a kind of method and apparatus of data sharing in block chain, first, obtain the target data changed in first node;Then, second node target data being broadcast in the block chain, wherein after second node receives target data, second node is based on common recognition algorithm and carries out common recognition operation to target data, and operation result is written in the chain of block chain in account book.In embodiments of the present invention, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and the data of each node in block chain are written to the mode in the chain of block chain in account book based on common recognition operation, it can realize that each internodal data in block chain can be shared and then achieve the purpose that each data among enterprises in the shared realization supply chain based on each internodal data in block chain are shared, solve the technical issues of cannot reaching an agreement in time due to the data in supply chain caused by the system lock between supply chain Zhong Ge enterprises in the prior art.
Description
Technical field
The present invention relates to block chain technical fields, more particularly, to a kind of method and apparatus of data sharing in block chain.
Background technology
Block chain is the novel of the computer technologies such as Distributed Storage, point-to-point transmission, common recognition mechanism, Encryption Algorithm
Application model.So-called common recognition mechanism is that the mathematics calculation for trusting, obtaining equity is established between realizing different nodes in block catenary system
Method.Supply chain refers to the connection of each relative or the linking of business before commodity reach in consumer's hand, is to surround core enterprise,
By the way that information flow, since logistics, the control of cash flow be made intermediate products and final products, finally purchasing raw material
By sales network product be sent in consumer's hand by supplier, manufacturer, retail trader (retailer, whole seller etc.) is until most
Whole user is linked to be the function network structure of an entirety.
At this stage, supply chain finance participates in each side's system lock, and the transaction data in supply chain cannot reach common understanding in time
Unanimously, and in the data sharing between supply chain Zhong Ge enterprises there is part verification link and need manual examination and verification, inefficiency.
In view of the above problems, not proposing effective solution also.
Invention content
In view of this, the purpose of the present invention is to provide a kind of method and apparatus of data sharing in block chain, to solve
System lock between supply chain Zhong Ge enterprises in the prior art, the technology that the data in supply chain cannot reach an agreement in time are asked
Topic.
According to embodiments of the present invention, the method for providing data sharing in a kind of block chain is applied to block chain, the side
Method includes:Obtain the target data that changes in first node, wherein the first node is in the block chain with first
The corresponding node of enterprise, first enterprise are one in multiple Target Enterprises, and the multiple Target Enterprise is to pass through area
Block chain gateway is linked into the enterprise in the supply chain of the block chain;Target data is broadcast in the block chain
Two nodes, wherein the second node is all nodes in addition to the first node in the block chain;Wherein, in institute
It states after second node receives the target data, the second node is based on common recognition algorithm and knows together to the target data
Operation, and operation result is written in the chain of the block chain in account book.
Further, include by the second node that the target data is broadcast in the block chain:By the number of targets
It is broadcast in the event sniffer of the second node according to by broadcast mechanism, so that the event sniffer passes through the block
The target data is sent to the second node by chain gateway, wherein the event sniffer is in advance in second node
The event sniffer being arranged in registered port.
Further, after in the chain that operation result is written to the block chain in account book, the method further includes:To
The event sniffer transmission data fresh information of each node in the block chain, wherein the data update information is described
The information that block chain is updated the target data in account book in the chain based on the operation result.
According to embodiments of the present invention, the method for additionally providing data sharing in a kind of block chain is applied in block chain
Second node, including:The second node obtains the target data that block chain is broadcasted in chain, wherein the target data is
The target data changed in first node in the block chain, wherein the first node be the block chain in
The corresponding node of first enterprise, first enterprise are one in multiple Target Enterprises, and the multiple Target Enterprise is logical
Cross the enterprise that block chain gateway is linked into the supply chain of the block chain;The second node receive the target data it
Afterwards, common recognition operation is carried out to the target data based on common recognition algorithm, and account in the chain of the block chain is written into operation result
In this.
Further, common recognition operation is carried out to the target data based on common recognition algorithm, and described in operation result is written
Account book includes in the chain of block chain:Stored interaction data data with the target data respectively in the second node
Content is compared, and obtains comparison result, wherein the data content includes numerical value and/or version number, and the interaction data is
The number that the first node stores during being interacted with the second node when being changed to the target data
According to;If the comparison result is that the interaction data is consistent with the target data, will be in the data of the target data
Hold in the chain that the block chain is written in account book.
Further, the method further includes:If the comparison result is the interaction data and the target data
It is inconsistent, then the interaction data of the second node is changed based on optimistic lock mechanism, is specifically included:Compare the interaction data with
The version number of the target data;If the version number for comparing the interaction data is less than or equal to the version of the target data
This number, then by the updating target data to the second node, and by the updating target data in the block chain
Chain in account book.
Further, if the version number of the interaction data is higher than the version number of the target data, execution is returned
The target data that block chain is broadcasted in chain is obtained, and common recognition operation is carried out to the target data based on common recognition algorithm, and will
The step in account book in the chain of the block chain is written in operation result.
Further, after in the chain that operation result is written to the block chain in account book, the method further includes:Institute
It states second node and the data update information that the block chain is sent is obtained by event sniffer, wherein the data update letter
Breath is the information that the block chain is updated the target data in account book in the chain based on the operation result.
According to embodiments of the present invention, a kind of device of data sharing in block chain is additionally provided, block chain is applied to, it is described
Device includes:First acquisition unit, for obtaining the target data changed in first node, wherein the first node
For node corresponding with the first enterprise in the block chain, first enterprise is one in multiple Target Enterprises, described
Multiple Target Enterprises are the enterprise being linked by block chain gateway in the supply chain of the block chain;Radio unit, being used for will
The target data is broadcast to the second node in the block chain, wherein the second node in the block chain remove institute
State all nodes other than first node;Wherein, after the second node receives the target data, the second node
Common recognition operation is carried out to the target data based on common recognition algorithm, and account book in the chain of the block chain is written into operation result
In.
According to embodiments of the present invention, a kind of device of data sharing in block chain is additionally provided, is applied in block chain
Second node, including:Second acquisition unit obtains the target data that block chain is broadcasted in chain for the second node,
In, the target data is the target data changed in the first node in the block chain, wherein the first node
For node corresponding with the first enterprise in the block chain, first enterprise is one in multiple Target Enterprises, described
Multiple Target Enterprises are the enterprise being linked by block chain gateway in the supply chain of the block chain;Arithmetic element is used for institute
Second node is stated after receiving the target data, common recognition operation is carried out to the target data based on common recognition algorithm, and will
Operation result is written in the chain of the block chain in account book.
In embodiments of the present invention, first, the target data changed in first node is obtained;Then, by number of targets
According to the second node being broadcast in the block chain, wherein after second node receives target data, second node is based on altogether
Know algorithm and common recognition operation is carried out to target data, and operation result is written in the chain of block chain in account book.Implement in the present invention
In example, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and are based on common recognition operation by block chain
In each node data write-in block chain chain in mode in account book, can realize that each internodal data can be total in block chain
It enjoys, and then has reached the shared mesh of each data among enterprises in the shared realization supply chain based on each internodal data in block chain
, it solves since the data in supply chain caused by the system lock between supply chain Zhong Ge enterprises in the prior art cannot be timely
The technical issues of reaching an agreement, to realize the technique effect that the data between supply chain Zhong Ge enterprises can be shared.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, other drawings may also be obtained based on these drawings.
Fig. 1 is the flow chart of data sharing method in a kind of block chain provided according to embodiments of the present invention;
Fig. 2 is that the Target Enterprise provided according to embodiments of the present invention is linked into the signal in block chain by block chain gateway
Figure;
Fig. 3 is that target data is broadcast to the second section based on broadcast mechanism in the block chain provided according to embodiments of the present invention
Schematic diagram in point;
Fig. 4 is data in a kind of block chain applied to the second node in block chain provided according to embodiments of the present invention
The flow chart of shared method;
It is the schematic diagram that data rewriting is entered to account book based on optimistic lock mechanism of embodiment offer that Fig. 5, which is according to the present invention,;
Fig. 6 is the schematic diagram of the device of data sharing in a kind of block chain provided according to embodiments of the present invention;
Fig. 7 is the structure chart of the block chain gateway provided according to embodiments of the present invention;
Fig. 8 is data in a kind of block chain applied to the second node in block chain provided according to embodiments of the present invention
The schematic diagram of shared device;
Fig. 9 is the schematic diagram that the block chain provided according to embodiments of the present invention carries out the processing of data based on intelligent contract.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creative work premise
Lower obtained every other embodiment, shall fall within the protection scope of the present invention.
Embodiment one:
Fig. 1 is the flow chart of data sharing method in a kind of block chain provided according to embodiments of the present invention, and the data are total
The method enjoyed is applied to block chain, as shown in Figure 1, this method comprises the following steps:
Step S102 obtains the target data that changes in first node, wherein first node is in block chain with the
The corresponding node of one enterprise, the first enterprise are one in multiple Target Enterprises, and multiple Target Enterprises are to pass through block link network
Close the enterprise being linked into the supply chain of block chain;
Target data is broadcast to the second node in block chain by step S104, wherein second node is to be removed in block chain
All nodes other than first node;
Wherein, after second node receives target data, second node is based on common recognition algorithm and is total to target data
Know operation, and operation result is written in the chain of block chain in account book.
In embodiments of the present invention, first, the target data changed in first node is obtained;Then, by number of targets
According to the second node being broadcast in the block chain, wherein after second node receives target data, second node is based on altogether
Know algorithm and common recognition operation is carried out to target data, and operation result is written in the chain of block chain in account book.Implement in the present invention
In example, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and are based on common recognition operation by block chain
In each node data write-in block chain chain in mode in account book, can realize that each internodal data can be total in block chain
It enjoys, and then has reached the shared mesh of each data among enterprises in the shared realization supply chain based on each internodal data in block chain
, it solves since the data in supply chain caused by the system lock between supply chain Zhong Ge enterprises in the prior art cannot be timely
The technical issues of reaching an agreement, to realize the technique effect that the data between supply chain Zhong Ge enterprises can be shared.
Fig. 2 is that the Target Enterprise provided according to embodiments of the present invention is linked into the signal in block chain by block chain gateway
Figure.
In embodiments of the present invention, the enterprise in supply chain includes a series of participations of supplier, manufacturer, retail trader etc.
Enterprise of the commodity from producing to being ultimately sent in consumer's hand, as shown in Fig. 2, financial institution's member's node in Fig. 2, transaction pair
Hand member's node, warehouse receipt holder member node and storage ERP (that is, enterprise management system) member's node etc. belong to supply
Enterprise's (that is, above-mentioned Target Enterprise) in chain.In embodiments of the present invention, each Target Enterprise passes through block chain gateway accessing
It is uploaded in block chain into block chain, and by the data in respective Target Enterprise, it should be noted that in above-mentioned Target Enterprise
Data can be one of data as shown in Figure 2:Data in account contract fund account, really power and the friendship of warehouse receipt contract
Easy data, the data in account contract asset account, but it is not limited to the above-mentioned data enumerated.
In an alternative embodiment, target data is broadcast to the second node in block chain, specifically by step S104
Including following method:
Target data is broadcast to by broadcast mechanism in the event sniffer of second node, so that event sniffer passes through
Target data is sent to second node by block chain gateway, wherein event sniffer is in advance in the registered port of second node
The event sniffer of middle setting.
In embodiments of the present invention, first, each node in block chain needs the service in the gateway registration itself of block chain
IP address and serve port (that is, above-mentioned registered port), and call Event hub (that is, above-mentioned action listener at registered port
Device) it is monitored, it should be noted that event sniffer is the monitoring journey being arranged in the registered port of second node in advance
Sequence, then, after block chain gets the target data changed in first node, block chain can pass through the target data
Broadcast mechanism is broadcast in the event sniffer of second node, so that event sniffer is sent out target data by block chain gateway
It is sent to second node, wherein event sniffer carries out the transmission of data with JSON formats.
Specific description is made to above-mentioned broadcast mechanism with specific example below.
Fig. 3 is that target data is broadcast to the second section based on broadcast mechanism in the block chain provided according to embodiments of the present invention
Schematic diagram in point.
As shown in figure 3, when user (that is, above-mentioned first enterprise) initiates Accounting Request (that is, the first enterprise is to above-mentioned first segment
Data in point change) when, the data in node 1 (that is, above-mentioned first node) shown in Fig. 3 can change.
After data in node 1 change, block chain can be by changed data in node 1 (that is, above-mentioned in above-mentioned first node
Data change after target data) be broadcast in the second node in block chain (that is, node 2 shown in Fig. 3),
And then second node executes above-mentioned step target data being written based on common recognition algorithm in the chain of block chain in account book.Wherein,
It is institute in Fig. 3 that second node, which executes the above-mentioned step that target data is written in the chain of block chain in account book based on common recognition algorithm,
That shows is packaged data the process of book keeping operation.
It should be noted that account book page 1 as shown in Figure 3, account book page 2, account book equal blocks 1 in block chain of page 3,
Block 2, block 3 etc..And so on, as shown in figure 3, when being written in the chain of block chain in account book target data, it will
Increase a new block in chain to be written for the target data.
In embodiments of the present invention, block chain can not only be arrived the data broadcasting changed in node 1 based on broadcast mechanism
(that is, account broadcast as shown in Figure 3) in node 2, can also be informed by broadcast mechanism after node 2 receives target data
Node 1, and inform other node the following contents in block chain in addition to node 2:Node 2 has been received by target data (that is, as schemed
Result shown in 3 is broadcasted).
In embodiments of the present invention, user can only add new data information in node 1, cannot be to having in node 1
Data rewritten.In addition, the broadcast of target data is carried out based on digital signature, carried out using the mode of digital signature
The transmission of data can effectively be encrypted data so that the transmission process of data more has safety.In the present invention
In embodiment, user be free to receive the data in node corresponding with itself in block chain, propagate, keep accounts
With verification etc. operations.
In another optional embodiment, in the chain that operation result is written to block chain in account book after, the data
Shared method further includes:
Step S106, the event sniffer transmission data fresh information of each node into block chain, wherein data update
Information is the information that block chain is updated target data in account book in chain based on operation result.
In embodiments of the present invention, common recognition operation is carried out to target data when second node is based on common recognition algorithm, and will fortune
After calculating in the chain of result write-in block chain in account book, block chain can be sent to the event sniffer of each node in block chain
The information that data in the chain of block chain in account book are updated, so that the data that each node obtains in chain in account book are updated
Message.
In embodiments of the present invention, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and
The mode in the chain of block chain in account book is written into the data of each node in block chain based on common recognition operation, can realize block chain
In each internodal data can share, and then reached in the shared realization supply chain based on each internodal data in block chain
The shared purpose of each data among enterprises is solved due to being supplied caused by the system lock between supply chain Zhong Ge enterprises in the prior art
The technical issues of answering the data on chain that cannot reach an agreement in time can be total to realize the data between supply chain Zhong Ge enterprises
The technique effect enjoyed.
Embodiment two:
The method that the embodiment of the present invention additionally provides data sharing in a kind of block chain, this method are applied in block chain
Second node, Fig. 4 are numbers in a kind of block chain applied to the second node in block chain provided according to embodiments of the present invention
According to the flow chart of shared method, as shown in figure 4, this method comprises the following steps:
Step S401, second node obtain the target data that block chain is broadcasted in chain, wherein target data is block chain
In first node in the target data that changes, wherein first node is section corresponding with the first enterprise in block chain
Point, the first enterprise are one in multiple Target Enterprises, and multiple Target Enterprises are to be linked into block chain by block chain gateway
Enterprise in supply chain;
Step S402, second node carry out common recognition fortune after receiving target data, based on common recognition algorithm to target data
It calculates, and operation result is written in the chain of block chain in account book.
In embodiments of the present invention, first, second node obtains the target data that block chain is broadcasted in chain;Then,
Two nodes carry out common recognition operation after receiving target data, based on common recognition algorithm to target data, and operation result is written
In the chain of block chain in account book.
In embodiments of the present invention, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and
The mode in the chain of block chain in account book is written into the data of each node in block chain based on common recognition operation, can realize block chain
In each internodal data can share, and then reached in the shared realization supply chain based on each internodal data in block chain
The shared purpose of each data among enterprises is solved due to being supplied caused by the system lock between supply chain Zhong Ge enterprises in the prior art
The technical issues of answering the data on chain that cannot reach an agreement in time can be total to realize the data between supply chain Zhong Ge enterprises
The technique effect enjoyed.
In an alternative embodiment, step S402 carries out common recognition operation based on common recognition algorithm to target data, and will
Include the following steps in account book in the chain of operation result write-in block chain:
Step S4021, stored interaction data is carried out with the data content of the target data respectively in second node
Compare, obtain comparison result, wherein data content includes numerical value and/or version number, and interaction data is first node to target
The data stored during being interacted with second node when data change;
Step S4022, if comparison result is that interaction data is consistent with target data, by the data content of target data
It is written in the chain of block chain in account book.
In embodiments of the present invention, after the target data that second node gets that block chain is broadcasted in chain, with
It is stored in two nodes to be compared respectively with the target data content with the interaction data of first node.If comparing this
Interaction data is consistent with target data, then the data content of target data is written in the chain of block chain in account book, that is, by target
The numerical value of data and version number are written in the chain of block chain in account book.
In another optional embodiment, common recognition operation is carried out to target data based on common recognition algorithm, and by operation knot
It further includes following steps that fruit, which is written in the chain of block chain in account book,:
Step S4023 is changed if comparison result is that interaction data and target data are inconsistent based on optimistic lock mechanism
The interaction data of second node, specifically comprises the following steps:
Step S1 compares the version number of interaction data and target data;
Step S2, if the version number for comparing interaction data is less than or equal to the version number of target data, by target
In data update to second node, and by updating target data in the chain of block chain in account book.
In embodiments of the present invention, optimistic lock mechanism is realized based on versions of data (Version) recording mechanism, in base
In the version solution of database table, realized generally by " version " field is increased for database table.It reads
When taking out data, this version number is read together, when updating later, this version number is added " 1 ".At this point, the version that data will be submitted
Notebook data is compared with the current version information of database table corresponding record, if the versions of data number submitted is more than database
Table current version number, then updated, otherwise it is assumed that being stale data.
In embodiments of the present invention, inconsistent with target data if comparing the interaction data, compare interaction data
It will if the version number for comparing interaction data is less than or equal to the version number of target data with the version number of target data
In updating target data to second node, and then by updating target data in the chain of block chain in account book.
Optionally, the interaction data that second node is changed based on optimistic lock mechanism, further includes following steps:
Step S3 returns to execution and obtains block chain if the version number of interaction data is higher than the version number of target data
The target data broadcasted in chain, and common recognition operation is carried out to target data based on common recognition algorithm, and by operation result write area
Step in the chain of block chain in account book.
In embodiments of the present invention, it if the version number for comparing interaction data is higher than the version number of target data, needs
The step of re-executing synchronous read current data and version number, that is, return to execute and obtain what block chain was broadcasted in chain
Target data, and common recognition operation is carried out to target data based on common recognition algorithm, and account in the chain of block chain is written into operation result
Step in this.
Specific description to above-mentioned optimistic lock machine is manufactured with a specific example below.
It is the schematic diagram that data rewriting is entered to account book based on optimistic lock mechanism of embodiment offer that Fig. 5, which is according to the present invention,.
As shown in figure 5, during P1, when A (that is, above-mentioned first node, similarly hereinafter) accesses data s1, that is, A is by chain
Data modification in interior account book is 80, can compare version number (that is, version shown in Fig. 5, similarly hereinafter) at this time.Such as Fig. 5 institutes
Show, the version number of data is 1 in A, and the version number of the data in chain in account book is 2, at this point, the version number of data is less than in A
Data rewriting in account book in chain cannot be then 80 by the version number of the data in chain in account book.Therefore, block chain needs again
The data in current A are obtained, are re-executed based on common recognition algorithm by the process in target data write-in block chain, such as institute in Fig. 5
The P2 processes shown, the data in A are 100 at this time, and change has been carried out.
As shown in figure 5, during P1, when B (that is, a certain node in above-mentioned second node, similarly hereinafter) accesses data s1
When, that is, the data modification in account book in chain is 90 by B, can compare version number at this time, when version number is greater than or equal to current version
This when, can just operate (that is, above-mentioned optimism lock mechanism), as shown in figure 5, the version number in B is 2, and the data in chain in account book
Version number also be 2, at this point, by the data update in account book in chain be 90, that is, during P2 as shown in Figure 5, account book in chain
Data be shown as 90.It should be noted that shown in during the P2 of such as Fig. 5, when the data in B are written in chain in account book
Afterwards, the version number of data subtracts " 1 " automatically in B.
In embodiments of the present invention, a kind of Key-Values databases (key value database) are devised in block chain, and are carried
For PUT, SET, GET operating methods, which belongs to the embedded database of lightweight, can easily dispose
In node in block chain, when there is persistence service, that is, by account book in the chain of the write-in block chain of target data persistence
When middle, API (Application Programming Interface, application programming interface) is called to can be operated.
In an optional embodiment, in the chain that operation result is written to block chain in account book after, the block
Data sharing method further includes in chain:
Step S403, second node obtain the data update information that block chain is sent by event sniffer, wherein data
Fresh information is the information that block chain is updated target data in account book in chain based on operation result.
In embodiments of the present invention, first, second node obtains the target data that block chain is broadcasted in chain;Then,
Two nodes carry out common recognition operation after receiving target data, based on common recognition algorithm to target data, and operation result is written
In the chain of block chain in account book.In embodiments of the present invention, supply chain Zhong Ge enterprises are linked by using block chain gateway
In block chain, and the data of each node in block chain are written by the mode in the chain of block chain in account book, energy based on common recognition operation
It enough realizes that each internodal data can be shared in block chain, and then has reached the shared reality based on each internodal data in block chain
The shared purpose of each data among enterprises in existing supply chain is solved due to the system between supply chain Zhong Ge enterprises in the prior art
The technical issues of data caused by closing in supply chain cannot reach an agreement in time, to realize between supply chain Zhong Ge enterprises
The technique effect that can share of data.
Embodiment three:
A kind of device of data sharing in block chain is additionally provided according to embodiments of the present invention, and the device is for executing this hair
The method of data sharing in the block chain applied to block chain that bright embodiment the above provides, below to the embodiment of the present invention
The device of data sharing does specific introduction in the block chain of offer.
Fig. 6 is the schematic diagram of the device of data sharing in a kind of block chain provided according to embodiments of the present invention, such as Fig. 6 institutes
Show, the device group of data sharing will include in the block chain:First acquisition unit 10, radio unit 20, wherein:
First acquisition unit 10, for obtaining the target data changed in first node, wherein first node is area
Node corresponding with the first enterprise in block chain, the first enterprise are one in multiple Target Enterprises, and multiple Target Enterprises are logical
Cross the enterprise that block chain gateway is linked into the supply chain of block chain;
Radio unit 20, the second node for being broadcast to target data in block chain, wherein second node is block
All nodes in chain in addition to first node;
Wherein, after second node receives target data, second node is based on common recognition algorithm and is total to target data
Know operation, and operation result is written in the chain of block chain in account book.
In embodiments of the present invention, block chain gateway is a kind of puppy parc, and platform (that is, block chain) is with enterprise (on that is,
State the enterprise in supply chain) application between there are gateway layer, the gateway layer be responsible for processing application access (enterprise i.e. in supply chain connects
Enter into block chain) protocol adaptation and packet parsing.Specifically, gateway layer using nodejs (a kind of event driven language (EDL)
Running environment) researched and developed, as shown in fig. 7, parsing block link layer in GRPC (a kind of RPC frames) request post package at
HTTPS api interfaces export JSON format general messages, wherein general api interface includes:User's registration is (that is, shown in Fig. 7
User), certificate management (that is, safety shown in fig. 7), intelligent contract call (that is, contract shown in fig. 7), intelligence to close
About inquiry (that is, extension shown in fig. 7) etc..Enterprise's application can directly inherit Nodejs SDK, directly use SDK (softwares
Development kit) internal user, certificate, intelligent contract function.Fig. 7 is the block chain gateway provided according to embodiments of the present invention
Structure chart.
In embodiments of the present invention, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and
The mode in the chain of block chain in account book is written into the data of each node in block chain based on common recognition operation, can realize block chain
In each internodal data can share, and then reached in the shared realization supply chain based on each internodal data in block chain
The shared purpose of each data among enterprises is solved due to being supplied caused by the system lock between supply chain Zhong Ge enterprises in the prior art
The technical issues of answering the data on chain that cannot reach an agreement in time can be total to realize the data between supply chain Zhong Ge enterprises
The technique effect enjoyed.
Example IV:
A kind of device of data sharing in block chain is additionally provided according to embodiments of the present invention, and the device is for executing this hair
The method of data sharing, right below in the block chain for the second node being applied in block chain that bright embodiment the above provides
The device of data sharing does specific introduction in block chain provided in an embodiment of the present invention.
Fig. 8 is data in a kind of block chain applied to the second node in block chain provided according to embodiments of the present invention
The schematic diagram of shared device, as shown in figure 8, the device group of data sharing will include in the block chain:Second acquisition unit 30,
Arithmetic element 40, wherein:
Second acquisition unit 30 obtains the target data that block chain is broadcasted in chain, wherein number of targets for second node
According to the target data to be changed in the first node in block chain, wherein first node be block chain in the first enterprise
Corresponding node, the first enterprise are one in multiple Target Enterprises, and multiple Target Enterprises are to pass through block chain gateway accessing
To the enterprise in the supply chain of block chain;
Arithmetic element 40 carries out target data based on common recognition algorithm for second node after receiving target data
Common recognition operation, and operation result is written in the chain of block chain in account book.
In embodiments of the present invention, in block chain it is the processing that data are carried out based on intelligent contract, Fig. 9 is according to this
The block chain that inventive embodiments provide carries out the schematic diagram of the processing of data based on intelligent contract.
As shown in figure 9, the intelligent contract on block chain includes issued transaction and the mechanism of preservation, affairs include mainly to need
The data (that is, being worth shown in Fig. 9, similarly hereinafter) of transmission;And event is then to the description information of these data (i.e. shown in Fig. 9
State, similarly hereinafter).After affairs and the incoming intelligent contract of event information, the resource status in contract resource collection can be updated, into
And it triggers intelligent contract and carries out state machine judgement.If some in automatic state machine or the trigger condition of certain several action meet,
Then select contract action is automatic to execute according to presupposed information by state machine.
Include trigger condition in time description information, that is, preset trigger event as shown in Figure 9 and preset response rule
Then, wherein preset trigger event includes the preset specific time, and specific event etc., preset rule of response includes preset specific
Transaction, specific action etc., intelligent contract system is according to the trigger condition, when meeting the trigger condition, certainly from intelligent contract
It is dynamic to send out preset data resource, and the event including trigger condition, complete response.It should be noted that in this process,
Intelligent contract be a transaction model and state machine at system, it does not generate intelligent contract, will not change intelligence
Can contract, therefore block chain carries out the processing of data based on intelligent contract, and can be effectively ensured that data in block chain change can
Traceability so that the operation in any block chain can retain evidence and be inquired.
In embodiments of the present invention, first, the target data changed in first node is obtained;Then, by number of targets
According to the second node being broadcast in the block chain, wherein after second node receives target data, second node is based on altogether
Know algorithm and common recognition operation is carried out to target data, and operation result is written in the chain of block chain in account book.Implement in the present invention
In example, supply chain Zhong Ge enterprises are linked into block chain by using block chain gateway, and are based on common recognition operation by block chain
In each node data write-in block chain chain in mode in account book, can realize that each internodal data can be total in block chain
It enjoys, and then has reached the shared mesh of each data among enterprises in the shared realization supply chain based on each internodal data in block chain
, it solves since the data in supply chain caused by the system lock between supply chain Zhong Ge enterprises in the prior art cannot be timely
The technical issues of reaching an agreement, to realize the technique effect that the data between supply chain Zhong Ge enterprises can be shared.
The technique effect and preceding method embodiment phase of the device that the embodiment of the present invention is provided, realization principle and generation
Together, to briefly describe, device embodiment part does not refer to place, can refer to corresponding contents in preceding method embodiment.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected;It can
Can also be electrical connection to be mechanical connection;It can be directly connected, can also indirectly connected through an intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term "center", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for the description present invention and simplify description, do not indicate or imply the indicated device or element must have a particular orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is used for description purposes only, and is not understood to indicate or imply relative importance.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.The apparatus embodiments described above are merely exemplary, for example, the division of the unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, in another example, multiple units or component can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be by some communication interfaces, device or unit it is indirect
Coupling or communication connection can be electrical, machinery or other forms.
The unit illustrated as separating component may or may not be physically separated, aobvious as unit
The component shown may or may not be physical unit, you can be located at a place, or may be distributed over multiple
In network element.Some or all of unit therein can be selected according to the actual needs to realize the mesh of this embodiment scheme
's.
In addition, each functional unit in each embodiment of the present invention can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in the executable non-volatile computer read/write memory medium of a processor.Based on this understanding, of the invention
Technical solution substantially the part of the part that contributes to existing technology or the technical solution can be with software in other words
The form of product embodies, which is stored in a storage medium, including some instructions use so that
One computer equipment (can be personal computer, server or the network equipment etc.) executes each embodiment institute of the present invention
State all or part of step of method.And storage medium above-mentioned includes:USB flash disk, mobile hard disk, read-only memory (ROM, Read-
Only Memory), random access memory (RAM, Random Access Memory), magnetic disc or CD etc. are various can be with
Store the medium of program code.
Finally it should be noted that:Embodiment described above, only specific implementation mode of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that:Any one skilled in the art
In the technical scope disclosed by the present invention, it can still modify to the technical solution recorded in previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features;And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover the protection in the present invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of method of data sharing in block chain, which is characterized in that it is applied to block chain, the method includes:
Obtain the target data changed in first node, wherein the first node is to be looked forward to first in the block chain
The corresponding node of industry, first enterprise are one in multiple Target Enterprises, and the multiple Target Enterprise is to pass through block
Chain gateway is linked into the enterprise in the supply chain of the block chain;
The target data is broadcast to the second node in the block chain, wherein the second node is the block chain
In all nodes in addition to the first node;
Wherein, after the second node receives the target data, the second node is based on common recognition algorithm to the mesh
Mark data carry out common recognition operation, and operation result is written in the chain of the block chain in account book.
2. according to the method described in claim 1, it is characterized in that, the target data to be broadcast to in the block chain
Two nodes include:
The target data is broadcast to by broadcast mechanism in the event sniffer of the second node, so that the event is supervised
Listen device that the target data is sent to the second node by the block chain gateway, wherein the event sniffer is
The event sniffer being arranged in the registered port of second node in advance.
3. according to the method described in claim 1, it is characterized in that, in the chain that operation result is written to the block chain account book
In after, the method further includes:
The event sniffer transmission data fresh information of each node into the block chain, wherein the data update information
The information that the target data is updated in account book in the chain based on the operation result for the block chain.
4. a kind of method of data sharing in block chain, which is characterized in that the second node being applied in block chain, including:
The second node obtains the target data that block chain is broadcasted in chain, wherein the target data is the block chain
In first node in the target data that changes, wherein the first node be in the block chain with first enterprise's phase
Corresponding node, first enterprise are one in multiple Target Enterprises, and the multiple Target Enterprise is to pass through block link network
Close the enterprise being linked into the supply chain of the block chain;
The second node carries out common recognition fortune after receiving the target data, based on common recognition algorithm to the target data
It calculates, and operation result is written in the chain of the block chain in account book.
5. according to the method described in claim 4, it is characterized in that, carrying out common recognition fortune to the target data based on common recognition algorithm
It calculates, and account book in the chain of the block chain is written into operation result and includes:
Stored interaction data is compared with the data content of the target data respectively in the second node, is compared
Relatively result, wherein the data content includes numerical value and/or version number, and the interaction data is the first node to institute
State the data stored during being interacted with the second node when target data changes;
If the comparison result is that the interaction data is consistent with the target data, will be in the data of the target data
Hold in the chain that the block chain is written in account book.
6. according to the method described in claim 5, it is characterized in that, the method further includes:
If the comparison result is that the interaction data and the target data are inconsistent, institute is changed based on optimistic lock mechanism
The interaction data for stating second node, specifically includes:
Compare the version number of the interaction data and the target data;
If the version number for comparing the interaction data is less than or equal to the version number of the target data, by the target
In data update to the second node, and by the updating target data in the chain of the block chain in account book.
7. according to the method described in claim 6, it is characterized in that, if the version number of the interaction data is higher than the target
The version number of data then returns and executes the target data that acquisition block chain is broadcasted in chain, and based on common recognition algorithm to the mesh
Mark data carry out common recognition operation, and the step in the chain of the block chain in account book is written in operation result.
8. according to the method described in claim 4, it is characterized in that, in the chain that operation result is written to the block chain account book
In after, the method further includes:
The second node obtains the data update information that the block chain is sent by event sniffer, wherein the data
The fresh information block chain is updated the target data in account book in the chain based on the operation result
Information.
9. the device of data sharing in a kind of block chain, which is characterized in that be applied to block chain, described device includes:
First acquisition unit, for obtaining the target data changed in first node, wherein the first node is described
Node corresponding with the first enterprise in block chain, first enterprise are one in multiple Target Enterprises, the multiple mesh
It is the enterprise being linked by block chain gateway in the supply chain of the block chain to mark enterprise;
Radio unit, the second node for being broadcast to the target data in the block chain, wherein the second node
For all nodes in the block chain in addition to the first node;
Wherein, after the second node receives the target data, the second node is based on common recognition algorithm to the mesh
Mark data carry out common recognition operation, and operation result is written in the chain of the block chain in account book.
10. the device of data sharing in a kind of block chain, which is characterized in that the second node being applied in block chain, including:
Second acquisition unit obtains the target data that block chain is broadcasted in chain, wherein the target for the second node
Data are the target data changed in the first node in the block chain, wherein the first node is the block
Node corresponding with the first enterprise in chain, first enterprise are one in multiple Target Enterprises, the multiple target enterprise
Industry is the enterprise being linked by block chain gateway in the supply chain of the block chain;
Arithmetic element, for the second node after receiving the target data, based on common recognition algorithm to the number of targets
According to carrying out common recognition operation, and operation result is written in the chain of the block chain in account book.
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