CN116010437B - Device code writing method and device, readable storage medium and electronic device - Google Patents
Device code writing method and device, readable storage medium and electronic device Download PDFInfo
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The invention discloses a device code writing method, a device, a readable storage medium and an electronic device, wherein a target device code is read from a database table according to the use state of the device code based on a database transaction mechanism, the target device code is written into a NAS cloud box, the database table is automatically updated, the device code and the use state thereof are stored in the constructed database table, when a writing computer needs to write, the device code which is already written and the device code which is not already written can be determined from the database table based on the database transaction mechanism, then the target device code written at the time is determined and is written into the NAS cloud box, the database transaction mechanism can ensure that the next transaction can be carried out only after one transaction is completed, a plurality of writing transactions are prevented from being carried out simultaneously, and the database table is automatically updated, so that the use state of the device code in the database table is always the latest state, and the uniqueness of the written device code is ensured.
Description
Technical Field
The present invention relates to the field of data processing technologies, and in particular, to a device code writing method and apparatus, a readable storage medium, and an electronic device.
Background
The device code plays a role of identifying the device, in the prior art, a plurality of terminal computers are usually used on a production line to write the device code according to a NAS (Network Attached Storage ) cloud box device code, a network card MAC device code or a display card SN device code list, so that one terminal computer contains one device code, the terminal computers and the device codes are paired one by one, but because only one device code list containing a plurality of device codes is provided in the prior art, the terminal computers often have a repeated writing phenomenon, namely, the plurality of terminal computers possibly write the same device code, and the uniqueness of the written device code cannot be ensured.
Disclosure of Invention
The technical problems to be solved by the invention are as follows: provided are a device code writing method, a device, a readable storage medium, and an electronic apparatus, capable of ensuring the uniqueness of a written device code.
In order to solve the technical problems, the invention adopts a technical scheme that:
a device code writing method comprising the steps of:
constructing a database table according to the equipment codes and the use states of the equipment codes;
reading a target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
and writing the target equipment code into a NAS cloud box, and automatically updating the database table.
In order to solve the technical problems, the invention adopts another technical scheme that:
a device code writing apparatus comprising:
the construction table module is used for constructing a database table according to the equipment codes and the use states of the equipment codes;
the reading module is used for reading the target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
and the writing module is used for writing the target equipment code into the NAS cloud box and automatically updating the database table.
In order to solve the technical problems, the invention adopts another technical scheme that:
a computer readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of a device code writing method as described above.
In order to solve the technical problems, the invention adopts another technical scheme that:
an electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, the processor implementing the steps of a device code writing method as described above when the computer program is executed.
The invention has the beneficial effects that: the method comprises the steps of reading target equipment codes from a database table according to the use state of the equipment codes based on a database transaction mechanism, writing the target equipment codes into a NAS cloud box, automatically updating the database table, storing the equipment codes and the use state thereof in the constructed database table, determining which equipment codes are already written and which equipment codes are not already written from the database table based on the database transaction mechanism when a code writing computer needs to write, determining the target equipment codes written at the time, and writing the target equipment codes into the NAS cloud box, wherein the database transaction mechanism can ensure that the next transaction can be carried out only after one transaction is completed, avoid a plurality of code writing transactions from being carried out simultaneously, and automatically updating the database table, so that the use state of the equipment codes in the database table is always the latest state, and the uniqueness of the written equipment codes is ensured.
Drawings
FIG. 1 is a flow chart showing steps of a method for writing device codes according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a device code writing apparatus according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an electronic device according to an embodiment of the present invention;
fig. 4 is a schematic diagram of a device code reading target device code in a device code writing method according to an embodiment of the present invention.
Detailed Description
In order to describe the technical contents, the achieved objects and effects of the present invention in detail, the following description will be made with reference to the embodiments in conjunction with the accompanying drawings.
Referring to fig. 1, an embodiment of the present invention provides a device code writing method, including the steps of:
constructing a database table according to the equipment codes and the use states of the equipment codes;
reading a target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
and writing the target equipment code into a NAS cloud box, and automatically updating the database table.
From the above description, the beneficial effects of the invention are as follows: the method comprises the steps of reading target equipment codes from a database table according to the use state of the equipment codes based on a database transaction mechanism, writing the target equipment codes into a NAS cloud box, automatically updating the database table, storing the equipment codes and the use state thereof in the constructed database table, determining which equipment codes are already written and which equipment codes are not already written from the database table based on the database transaction mechanism when a code writing computer needs to write, determining the target equipment codes written at the time, and writing the target equipment codes into the NAS cloud box, wherein the database transaction mechanism can ensure that the next transaction can be carried out only after one transaction is completed, avoid a plurality of code writing transactions from being carried out simultaneously, and automatically updating the database table, so that the use state of the equipment codes in the database table is always the latest state, and the uniqueness of the written equipment codes is ensured.
Further, the database-based transaction mechanism reading the target device code from the database table according to the usage status of the device code includes:
establishing a connection of a database corresponding to the database table;
invoking an opening transaction of the database;
reading a target equipment code from the database table according to the use state of the equipment code;
the writing of the target device code into the NAS cloud box comprises:
and calling the ending transaction of the database.
According to the description, when the equipment codes are required to be written, the code writing computer firstly establishes connection with the database, so that data in a database table can be obtained, a starting transaction of the database is called before the equipment codes are read, and an ending transaction of the database is called after the equipment codes are written, only one equipment code can be read and written at the same time, and the problem of repeated equipment code writing caused by concurrent access is avoided.
Further, the establishing a connection of the database corresponding to the database table includes:
and connecting the databases corresponding to the database tables by using an ADO mode.
As is apparent from the above description, the ADO (ActiveX Data Objects, a program object for representing the data structure and contained data in the user database) is used to connect the database corresponding to the database table, and the automatic connection between the writing computer and the database can be simply and quickly realized by using the easy-to-use feature.
Further, the use state of the device code includes unused;
the reading the target device code from the database table according to the use state of the device code includes:
and reading the using state of the device code from the database table as the unused device code, and determining the unused device code as a target device code.
From the above description, the device code whose usage status is unused is determined as the target device code, so that the device code written into the NAS cloud box by other code writing computers is prevented from being written again, and the uniqueness of the written device code is ensured.
Further, the use state of the device code also comprises used;
the automatically updating the database table includes:
updating the usage status of the target device code in the database table to the used using an update statement.
According to the description, after the equipment codes are written, the use state of the equipment codes can be automatically updated from unused to used by using the update statement, so that other code writing computers are prevented from writing the equipment codes into the NAS cloud box again, timely updating of a database table is realized, and uniqueness of the written equipment codes is further ensured.
Further, after the invoking the opening transaction of the database, before the reading the target device code from the database table according to the use state of the device code, the method includes:
judging whether operation failure information corresponding to the starting transaction is received or not;
if so, after waiting for the preset time, judging whether the operation success information corresponding to the starting transaction is received, and if so, determining that the starting of the database transaction is completed.
As can be seen from the above description, if the other code-writing computers have already started the transaction and are executing the code-writing process, the code-writing computers start the transaction again at this time, and then receive the operation failure information, and only after the other code-writing computers finish the database transaction, the code-writing computers can successfully start the transaction, so that the situation that the same equipment code is possibly read when two code-writing computers simultaneously perform the code-writing operation is avoided, and thus the uniqueness of the code-writing equipment code can be further ensured.
Further, the writing the target device code to the NAS cloud box includes:
and writing the target equipment code into a storage chip of the NAS cloud box.
As can be seen from the above description, the target device code is written into the storage chip of the NAS cloud box, so as to complete the writing flow of the device code.
Referring to fig. 2, another embodiment of the present invention provides a device code writing apparatus, including:
the construction table module is used for constructing a database table according to the equipment codes and the use states of the equipment codes;
the reading module is used for reading the target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
and the writing module is used for writing the target equipment code into the NAS cloud box and automatically updating the database table.
Another embodiment of the present invention provides a computer-readable storage medium having stored thereon a computer program which, when executed by a processor, implements the steps of a device code writing method as described above.
Referring to fig. 3, another embodiment of the present invention provides an electronic device, including a memory, a processor, and a computer program stored in the memory and capable of running on the processor, where the processor executes the computer program to implement each step in the above-mentioned method for writing device codes.
The method and the device for writing the equipment codes, the readable storage medium and the electronic equipment can be applied to the scene that a plurality of terminal computers in a production line write the equipment codes simultaneously, and the method and the device are described by the following specific embodiments:
example 1
Database transaction mechanism:
in practice, there is a problem of concurrent access to data, for example, when a queries a record in a database, and b modifies the record at the same time, a may possibly read problematic dirty data, and a transaction mechanism of the database is to solve the problem caused by concurrent access.
The basic operation of the transaction is as follows:
(1) A transaction is started.
(2) A series of data operations are performed.
(3) Commit or rollback transactions, successful commit persists the data to the database, otherwise all data operations in the transaction are invalidated.
The transaction has four characteristics: atomicity, consistency, isolation, durability (ACID principle).
Atomicity (Atomic): all operations within a transaction are atomic, either all succeeded or all failed.
Consistency (Consistency): the database should be brought from one consistency state to another after completing a transaction, for example, in the transfer function, a transfers a hundred yuan to B, then B accounts should be increased by one hundred yuan, and a accounts should be decreased by one hundred yuan. Consistency can be said to be the most fundamental feature in the ACID principle, and the other three features are all present to ensure consistency.
Isolation (Isolation): the operations between different transactions do not affect each other, and the database has different levels of isolation for the transactions.
Durability (Durability): once the operation of the transaction is completed, it must be persisted into the database.
Transactions include explicit transactions, implicit transactions, auto-commit transactions.
Explicit transaction: the beginning of the transaction is explicitly specified with begin transaction, the transaction is committed by commit transaction, and the transaction is rolled back rollback transaction to the end of the transaction.
Implicit transaction: the implicit transaction mode is set to on by setting a set immediate transactions on statement. When operating in the implicit transaction mode, the transaction does not have to be started using begin transaction, and when one transaction is over, this mode automatically enables the next transaction. Only the commit transaction commit transaction or rollback transaction rollback transaction is required.
Automatically submitting the transaction: the default mode of SQL Server, it treats each individual SQL statement as a transaction. If executed successfully, the method automatically submits, otherwise rolls back.
Referring to fig. 1 and 4, a device code writing method of the present embodiment includes the steps of:
s1, constructing a database table according to equipment codes and the use state of the equipment codes;
wherein the use state of the device code includes unused and used;
in an alternative embodiment, a table of the same SqlServer database will be constructed from the device code and the usage status of the device code, as shown in fig. 4.
S2, reading a target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism, wherein the method specifically comprises the following steps:
s21, establishing connection of a database corresponding to the database table;
in an alternative embodiment, the database corresponding to the database table is connected by using an ADO mode.
S22, calling an opening transaction of the database;
in an alternative embodiment, call begin transaction initiates a database transaction, thereby initiating a new transaction.
S23, judging whether operation failure information corresponding to the starting transaction is received or not;
and S24, if so, after waiting for the preset time, judging whether the operation success information corresponding to the starting transaction is received, and if so, determining that the starting of the database transaction is completed.
The preset time can be set according to actual conditions, namely, when the A computer writes the code, the starting transaction of the database is called, other computers can receive corresponding operation failure information when calling the starting transaction of the database, meanwhile, the transaction waiting for the A computer to finish is ordered, and when the A computer finishes the transaction, the other computers can call the starting transaction to run successfully, so that the uniqueness of the written equipment code is ensured.
S25, reading a target equipment code from the database table according to the use state of the equipment code;
specifically, the use state of the device code is read from the database table as the unused device code, and is determined as the target device code, as shown in fig. 4.
S3, writing the target equipment code into an NAS cloud box, and automatically updating the database table, wherein the method specifically comprises the following steps:
s31, writing the target equipment code into an NAS cloud box;
specifically, the target equipment code is written into a storage chip of the NAS cloud box.
S32, calling the ending transaction of the database;
in an alternative embodiment, call commit transaction ends the database transaction, thereby saving all changes and ending the current transaction.
The invention adopts the database transaction mechanism to carry out the atomic operation, and particularly uses the explicit transaction mode to communicate with the database, thereby being more convenient to call and more convenient to use.
S33, automatically updating the database table;
specifically, an update (update) statement is used to update the usage status of the target device code in the database table to the used status.
Example two
Referring to fig. 2, an apparatus code writing device includes:
the construction table module is used for constructing a database table according to the equipment codes and the use states of the equipment codes;
the reading module is used for reading the target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
and the writing module is used for writing the target equipment code into the NAS cloud box and automatically updating the database table.
Example III
A computer-readable storage medium having stored thereon a computer program which, when executed by a processor, performs the steps of the device code writing method of the first embodiment.
Example IV
Referring to fig. 3, an electronic device includes a memory, a processor, and a computer program stored on the memory and executable on the processor, where the processor implements the steps of the device code writing method in the first embodiment when executing the computer program.
In summary, the method and the device for writing the device code, the readable storage medium and the electronic device provided by the invention construct a database table according to the device code and the use state of the device code; reading a target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism; writing the target equipment code into an NAS cloud box, and automatically updating the database table; in addition, after the starting transaction of the database is called, before the target device code is read, whether operation failure information corresponding to the starting transaction is received is judged, if yes, after a preset time is waited, whether operation success information corresponding to the starting transaction is received is judged, if yes, the starting completion of the database transaction is confirmed, after the database transaction is finished by other code writing computers, the code writing computers can successfully start the transaction, when the code writing computers need to write, the fact that which are the device codes which are already written and the device codes which are not already written can be confirmed from the database table based on a database transaction mechanism, then the target device code written at this time is confirmed, the target device code written at this time is written into the NAS cloud box, the database transaction mechanism can ensure that the next transaction can be carried out only after one transaction is finished, a plurality of code writing transactions are prevented from being carried out simultaneously, the database table is automatically updated, the use state of the device codes in the database table is always the latest state is ensured, and therefore the uniqueness of the written device codes is ensured.
In the foregoing embodiments provided by the present application, it should be understood that the disclosed method, apparatus, computer readable storage medium and electronic device may be implemented in other manners. For example, the apparatus embodiments described above are merely illustrative, and for example, the division of the modules is merely a logical function division, and there may be additional divisions when actually implemented, for example, multiple components or modules may be combined or integrated into another apparatus, or some features may be omitted or not performed. Alternatively, the coupling or direct coupling or communication connection shown or discussed with respect to each other may be an indirect coupling or communication connection via some interfaces, devices or components or modules, which may be in electrical, mechanical, or other forms.
The components illustrated as separate components may or may not be physically separate, and components shown as components may or may not be physical modules, i.e., may be located in one place, or may be distributed over multiple network modules. Some or all of the components may be selected according to actual needs to achieve the purpose of the solution of this embodiment.
In addition, each functional module in each embodiment of the present invention may be integrated into one processing module, or each component may exist alone physically, or two or more modules may be integrated into one module. The integrated modules may be implemented in hardware or in software functional modules.
The integrated modules, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied essentially or in part or all of the technical solution or in part in the form of a software product stored in a storage medium, including instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It should be noted that, for the sake of simplicity of description, the foregoing method embodiments are all expressed as a series of combinations of actions, but it should be understood by those skilled in the art that the present invention is not limited by the order of actions described, as some steps may be performed in other order or simultaneously in accordance with the present invention. Further, those skilled in the art will appreciate that the embodiments described in the specification are all preferred embodiments, and that the acts and modules referred to are not necessarily all required for the present invention.
In the foregoing embodiments, the descriptions of the embodiments are emphasized, and for parts of one embodiment that are not described in detail, reference may be made to the related descriptions of other embodiments.
The foregoing description is only illustrative of the present invention and is not intended to limit the scope of the invention, and all equivalent changes made by the specification and drawings of the present invention, or direct or indirect application in the relevant art, are included in the scope of the present invention.
Claims (9)
1. A device code writing method, comprising the steps of:
constructing a database table according to the equipment codes and the use states of the equipment codes;
reading a target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
writing the target equipment code into an NAS cloud box, and automatically updating the database table;
the database-based transaction mechanism reading a target device code from the database table according to the use state of the device code comprises:
establishing a connection of a database corresponding to the database table;
invoking an opening transaction of the database;
reading a target equipment code from the database table according to the use state of the equipment code;
the writing of the target device code into the NAS cloud box comprises:
and calling the ending transaction of the database.
2. The apparatus code writing method according to claim 1, wherein said establishing a connection of a database corresponding to said database table comprises:
and connecting the databases corresponding to the database tables by using an ADO mode.
3. The apparatus code writing method according to claim 1, wherein the use state of the apparatus code includes unused;
the reading the target device code from the database table according to the use state of the device code includes:
and reading the using state of the device code from the database table as the unused device code, and determining the unused device code as a target device code.
4. The apparatus code writing method according to claim 1, wherein the use state of the apparatus code further includes used;
the automatically updating the database table includes:
updating the usage status of the target device code in the database table to the used using an update statement.
5. The device code writing method according to claim 1, wherein after the invoking of the open transaction of the database, before the reading of the target device code from the database table according to the usage status of the device code comprises:
judging whether operation failure information corresponding to the starting transaction is received or not;
if so, after waiting for the preset time, judging whether the operation success information corresponding to the starting transaction is received, and if so, determining that the starting of the database transaction is completed.
6. The device code writing method of claim 1, wherein the writing the target device code to the NAS cloud box comprises:
and writing the target equipment code into a storage chip of the NAS cloud box.
7. A device code writing apparatus, comprising:
the construction table module is used for constructing a database table according to the equipment codes and the use states of the equipment codes;
the reading module is used for reading the target equipment code from the database table according to the use state of the equipment code based on a database transaction mechanism;
the writing module is used for writing the target equipment code into the NAS cloud box and automatically updating the database table;
the database-based transaction mechanism reading a target device code from the database table according to the use state of the device code comprises:
establishing a connection of a database corresponding to the database table;
invoking an opening transaction of the database;
reading a target equipment code from the database table according to the use state of the equipment code;
the writing of the target device code into the NAS cloud box comprises:
and calling the ending transaction of the database.
8. A computer readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of a device code writing method according to any of claims 1 to 6.
9. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor performs the steps of a device code writing method according to any of claims 1 to 6 when the computer program is executed.
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