CN108959315A - Access method, device and the equipment of database - Google Patents
Access method, device and the equipment of database Download PDFInfo
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- CN108959315A CN108959315A CN201710372140.5A CN201710372140A CN108959315A CN 108959315 A CN108959315 A CN 108959315A CN 201710372140 A CN201710372140 A CN 201710372140A CN 108959315 A CN108959315 A CN 108959315A
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Abstract
The embodiment of the invention discloses a kind of access method of database, device and equipment.This method comprises: intercepting the first access request of application system access database；First access request is converted into the second access request with database matching；The second access request is sent to database；Database is received to the first response message of the second access request；When the first response message is the access data of the first access request, the first response message is sent to application system.When the embodiment of the present invention can save database switching, the time cost and cost of labor of the access sentence of restoration and reuse system access database are needed.
Description
Technical field
The present invention relates to field of computer technology more particularly to a kind of access methods of database, device and equipment.
Background technique
In order to reduce O&M cost or adapt to the reasons such as corporate specification, application system is using the database regular hour
Afterwards, it usually needs switch data library.The operation of major part database is all satisfied structured query language (Structured at present
Query Language, SQL) standard specification, but for the database of different type and version, its own extends and changes
To one's name peculiar SQL syntax standard is made.If the SQL of the SQL syntax standard of database and the preceding database of switching after switching
Grammer standard is different, then application system can not directly access the database after switching, so application system switch data library is not
It is that can be realized by simple handover operation.
In the prior art at switch data library, usually the SQL code of application system access data is checked one by one,
The special SQL syntax of database transform the SQL syntax of database after switching as before switching, and can adapt to application system in cutting
Database after changing.After the completion of the transformation of the SQL code of application system, then business function and business scenario etc. are tested,
And systematic testing is carried out to the adaptability of application system and pressure etc., after switching just can be used after test passes
Database.
But the workload that the workload in switch data library is rebuild already close to application system in the prior art, consumption
The more time.
Summary of the invention
The embodiment of the invention provides a kind of access method of database, device and equipment, can reduce switch data library
Elapsed time.
In a first aspect, the embodiment of the invention provides a kind of access methods of database, comprising:
Intercept the first access request of application system access database；
First access request is converted into the second access request with the database matching；
Second access request is sent to the database；
The database is received to the first response message of second access request；
When first response message is the access data of first access request, institute is sent to the application system
State the first response message.
Second aspect, the embodiment of the invention provides a kind of access mechanisms of database, comprising:
Interception unit, for intercepting the first access request of application system access database；
Converting unit, for first access request to be converted to the second access request with the database matching；
Transmission unit, for sending second access request to the database；
Receiving unit, for receiving the database to the first response message of second access request；
The transmission unit is also used to when first response message is the access data of first access request,
First response message is sent to the application system.
The third aspect, the embodiment of the invention provides a kind of access equipments of database, comprising:
Memory, processor, communication interface and bus；
Memory, processor and communication interface are connected by bus and complete mutual communication；
Memory is for storing program code；
Processor is corresponding with executable program code to run by reading the executable program code stored in memory
Program, with the access method for executing a kind of database, the access method of the database includes:
Intercept the first access request of application system access database；
First access request is converted into the second access request with the database matching；
Second access request is sent to the database；
The database is received to the first response message of second access request；
When first response message is the access data of first access request, institute is sent to the application system
State the first response message.
Fourth aspect, the embodiment of the present invention provide a kind of computer readable storage medium, in computer readable storage medium
It is stored with instruction, when instruction is run on computers, so that computer executes method described in first aspect.
The embodiment of the invention provides a kind of access method of database, device and equipment, in the embodiment of the present invention, answering
When accessing database with system, the first access request of application system access database is intercepted；First access request is converted to
After the second access request of database matching, the second access request is sent to database；And it receives database and accesses second
First response message of request；When the first response message is the access data of the first access request, the is sent to application system
One response message.In the embodiment of the present invention, application system is visited behind switch data library the first of application system access database
It asks that request is intercepted, then converts the first access request to the second access request to match with database, and receiving
After the access data of the first access request sent to data, the access data of the first access request are transmitted to application system,
To make application system behind switch data library, the access sentence for not needing to access application system database is transformed,
Can access to data, save database switching when need restoration and reuse system access database access sentence when
Between cost and cost of labor, save resource.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, will make below to required in the embodiment of the present invention
Attached drawing is briefly described, it should be apparent that, drawings described below is only some embodiments of the present invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is the schematic flow chart of the access method for the database that an embodiment provides according to the present invention；
Fig. 2 is the schematic flow chart of the access method for the database that another embodiment provides according to the present invention；
Fig. 3 is the schematic block diagram of the access mechanism of database according to an embodiment of the invention；
Fig. 4 is the schematic block diagram of the access mechanism of the database of another or multiple embodiments according to the present invention；
Fig. 5 is the schematic block diagram of the access equipment of database according to an embodiment of the invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
Every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The application is described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.
Fig. 1 shows the schematic flow chart of the access method of database according to an embodiment of the invention.Such as Fig. 1 institute
Show, this approach includes the following steps 101-105.
101, intercept the first access request of application system access database.
Wherein, when application system accesses database, since database is different with the statement law of application system, using system
Perhaps, the access request that system access issues, database cannot and drive in the wrong direction and identify, so first to application system access database
Access request is intercepted, in order to be transform as and the consistent access request of the statement law of database.
It should be noted that the access on data road is usually SOL sentence, it can be in application system in the embodiment of the present invention
Java database connects (Java Data Base Connectivity, JDBC), Object Relation Mapping frame (Hibernate)
Equal databases general purpose module is configured, and realizes interception application system by intercepting SQL statement caused by these general purpose modules
Access the first access request of database.
102, the first access request is converted into the second access request with database matching.
Wherein, since the statement law between application system and database is different, so needing the first of application system
Access request is converted to the second access request with database matching, in order to which database can recognize that application system is wanted to visit
The content asked.
103, the second access request is sent to database.
Wherein, after it the first access request of application system will be converted to the second access request with database matching,
Second access request is sent to database, realizes access of the application system to database.
104, database is received to the first response message of the second access request.
Wherein, after database receives the second access request, the second access request can be responded, is sent to second
First response message of access request.
105, when the first response message is the access data of the first access request, the first response letter is sent to application system
Breath.
Wherein, after step 104 receives the first response message, it can be determined that whether the content of the first response message is
The access data of one access request illustrate this access if the first response message is the access data of the first access request
Data success, is sent to application system for the first access information.
In the embodiment of the present invention, first access of the application system behind switch data library, to application system access database
Request is intercepted, and then converts the first access request to the second access request to match with database, and receiving
After the access data for the first access request that data are sent, the access data of the first access request are transmitted to application system, from
And making application system behind switch data library, the access sentence for not needing to access application system database is transformed, and also can
It is enough to access to data, save the time that the access sentence of restoration and reuse system access database is needed when database switching
Cost and cost of labor, save resource.
It should be noted that the embodiment of the present invention can also configure source database version before switching preceding type of database, switching
This, new database version after type of database, switching after switching, the connection for whether enabling database after SQL caching, switching drive
It is dynamic, the library name of database after switching, the information such as user name password of database after switching, in order to realize to database after switching
Access.
It is understood that in embodiments of the present invention, step 102 can also be executed specifically as following steps.
1021, identify the markup sentence of the first access request.
Wherein, the second converted access request can be stored in advance in the embodiment of the present invention.It is accessed to first
When request is converted, the second access request after converting, institute can be determined based on the markup sentence in the first access request
To need to identify the markup sentence in the first access request first.
1022, it is based on markup sentence, access request corresponding with markup sentence is determined from default access request resources bank.
Wherein, it presets in access request resources bank and stores converted access request, and establish these access and ask
It asks and the corresponding relationship of corresponding markup sentence.After the markup sentence that step 1021 identifies the first access request, it can be based on
The markup sentence of identification determines corresponding access request from default access request resources bank.
1023, it, will be with logos when there is access request corresponding with markup sentence in default access request resources bank
The corresponding access request of sentence is determined as the second access request.
Wherein, by determining access request corresponding with markup sentence in step 1022 from default access request resources bank
The step of after, default access request resources bank can be determined with the presence or absence of access request corresponding with markup sentence.If default
There is access request corresponding with markup sentence in access request resources bank, it is determined that in default access request resources bank with logos
The corresponding access request of sentence is the second access request.
1024, when access request corresponding with markup sentence is not present in default access request resources bank, according to default
First access request is converted to the second access request with database matching by rule.
Wherein, if determining default access request resources bank after executing step 1022, there is no corresponding with markup sentence
Access request, then the first access request can be converted to based on preset rules again and be asked with the second of database matching the access
It asks.Preset rules are to preset, and concrete mode can be set according to the statement law of database, and can be to conversion
Rule is adjusted.For example, being replaced with specified when some regulation sentence or word occurs in the first access request in setting
Other sentences or word.
In the embodiment of the present invention, first by presetting the second access request being pre-stored in access request resources bank, pre-
If being turned when the second access request being not present in access request resources bank further according to preset rules, improve the efficiency of conversion with
Accuracy saves the time of conversion.
In an optional embodiment, the embodiment of the present invention can store multiple corresponding with disparate databases default
Access request resources bank accesses in order to can be used for application system with disparate databases, the default access request money of difference
Mapping relations are established with corresponding Data Identification in source library.At this point, being needed current according to application system before executing step 101
The mark of the database of access determines default access request resources bank, i.e. execution step: being determined according to the mark of database pre-
If access request resources bank.
It, can be with when the embodiment of the present invention can store multiple default access request resources banks corresponding with disparate databases
The automatic database adapted to after switching, simplifies the operation in handoff procedure, saves the time.
It is understood that in embodiments of the present invention, after step 105, following steps can also be performed.
106, when the first response message is error indication, receive user instructions.
Wherein, user instruction includes the third access request with database matching converted according to the first access request, wrong
Accidentally instruction is for indicating the second access request mistake.
After step 104 receives the first response message, the first response message is judged, if the first response message
For error indication, then explanation is sent to the second access request mistake of database, and database cannot identify, so can ask at this time
User is asked to input correct access request, i.e. the third access request with database matching of the first access request conversion.
107, third access request is sent to database.
Wherein, after receiving the third access request in user instruction, then database is sent it to, makes database pair
Third access request identified, to realize access that application system sees data.
108, database is received to the second response message of third access request.
109, when the second response message is the access data of third access request, the second response message is sent to application
System.
Wherein, after having sent third access request to database, database is received to the second of third access request
Response message illustrates to convert successfully at this time if the second response message is the access data of third access request, and database is known
Not third access request, and responded, so the second response message is sent to application system.
In the embodiment of the present invention, in the second access request mistake, correct access can be determined by user instruction
Request, in order to be able to realize access of the application system to database.
As an alternative embodiment, the third in user instruction can be accessed and be asked after receiving user instructions
It asks to be added to and sees corresponding default access request resources bank, i.e. execution step with data: the third access request is added to
Default access request resources bank corresponding with database.Occur the feelings of mistake during to reduce subsequent access request conversion
Condition improves the efficiency of conversion.
It is understood that Fig. 2 is the schematic flow of the access method of the database of another embodiment according to the present invention
Figure.As shown in Fig. 2, in embodiments of the present invention, before step 102, following steps 110-111 can also be performed, step 102 is then
Specific execute is step 1025.
110, the type of the first access request is issued transaction, identifies transaction information in the first access request.
Wherein, the type requested in the access request of application system may include issued transaction, and type may include thing
Business processing access request generally include it is multiple, and including transaction information, for example, the mark of issued transaction, number etc..For
The consistency for guaranteeing data needs to carry out the first access request for belonging to the same issued transaction unified conversion, so
When intercepting the first access request that type is issued transaction, need to identify the transaction information that it includes first.
111, intercept all first access requests corresponding with transaction information.
It wherein, can based on transaction information after the transaction information for identifying the first access request in step 110
To intercept all first access requests for belonging to this issued transaction, all first access for belonging to this issued transaction are being intercepted
It is unified that these are requested to carry out conversion process after request.
It should be noted that in the embodiment of the present invention corresponding with transaction information all first can also be being intercepted
Mark is added in access request, in order to distinguish issued transaction access request and other access requests.
1025, all first access requests of interception are converted to the second access request with database matching.
Wherein, after intercepting all first access requests corresponding with transaction information in step 111, this step will be blocked
All first access requests cut are converted to the second access request with database matching.
Since the access request of transaction type needs uniformly to be handled, so intercepting class in the embodiment of the present invention
After type is the first access request of issued transaction, all first access requests for belonging to this issued transaction are intercepted first
Afterwards, unified that these are requested to carry out conversion process, guarantee the consistency of data.
It should be noted that in embodiments of the present invention, application system is not needed at switch data library to application system
The access sentence of access database is transformed, and also be can be realized and is accessed to data, needs when saving database switching
Restoration and reuse system accesses the time cost and cost of labor of the access sentence of database, saves resource；And it avoids pair
During the access sentence of application system access database is transformed, there is the case where omitting the risks such as transformation, avoid to industry
Business operation brings risk.
It should be noted that in embodiments of the present invention, can also record whether the first access request conversion record succeeds,
Transfer efficiency etc., in order to subsequent inquiry and analysis to transformation result.
Fig. 3 shows the schematic block diagram of the access mechanism 200 of database according to an embodiment of the invention.Such as Fig. 3 institute
Show, which includes:
Interception unit 201, for intercepting the first access request of application system access database；
Converting unit 202, for the first access request to be converted to the second access request with database matching；
Transmission unit 203, for sending the second access request to database；
Receiving unit 204, for receiving data first response message of the library to the second access request；
Transmission unit 203 is also used to when the first response message is the access data of the first access request, to application system
Send the first response message.
In the embodiment of the present invention, first access of the application system behind switch data library, to application system access database
Request is intercepted, and then converts the first access request to the second access request to match with database, and receiving
After the access data for the first access request that data are sent, the access data of the first access request are transmitted to application system, from
And making application system behind switch data library, the access sentence for not needing to access application system database is transformed, and also can
It is enough to access to data, save the time that the access sentence of restoration and reuse system access database is needed when database switching
Cost and cost of labor, save resource.
It is understood that converting unit 202 is also used to:
Identify the markup sentence of the first access request；
Based on markup sentence, access request corresponding with markup sentence is determined from default access request resources bank；
It, will be corresponding with markup sentence when there is access request corresponding with markup sentence in default access request resources bank
Access request be determined as the second access request；
It, will according to preset rules when access request corresponding with markup sentence is not present in default access request resources bank
First access request is converted to the second access request with database matching.
Fig. 4 show be the database of another or multiple embodiments according to the present invention access mechanism 200 it is schematic
Block diagram.
It is understood that as shown in figure 4, the device 200 can also include:
Determination unit 205, for determining default access request resources bank according to the mark of database.
It is understood that receiving unit 204, is also used to when the first response message includes error indication, user is received
Instruction, user instruction include the third access request with database matching converted according to the first access request, and error indication is used
In the second access request mistake of expression；
Transmission unit 205 is also used to send third access request to database；
Receiving unit 204 is also used to receive database to the second response message of third access request；
Transmission unit 205 is also used to when the second response message is the access data of third access request, by the second response
Information is sent to application system.
It is understood that as shown in figure 4, the device 200 can also include:
Adding unit 206, for third access request to be added to default access request resources bank corresponding with database.
It is understood that as shown in figure 4, the device 200 can also include:
Recognition unit 207, the type for the first access request are issued transaction, identify office in the first access request
Manage information；
Interception unit 201 is also used to intercept all first access requests corresponding with transaction information；
Converting unit 202 is also used to be converted to all first access requests intercepted and visit with the second of database matching
Ask request.
The access mechanism 200 of database according to an embodiment of the present invention can correspond to database according to an embodiment of the present invention
Access method in executing subject, and above and other operation of the modules in the access mechanism 200 of database and/
Or function is respectively in order to realize the corresponding process of each method of the Fig. 1 into Fig. 2, for sake of simplicity, details are not described herein.
Fig. 5 is the schematic block diagram of the access equipment 300 of database according to an embodiment of the invention.As shown in figure 5, setting
Standby 300 include processor 301, memory 302 and communication interface 303, and memory 302 is used to store executable program code,
Processor 301 is corresponding with executable program code to run by reading the executable program code stored in memory 302
Program, communication interface 303 is used for and external device communication, and equipment 300 can also include bus 304, and bus 304 is used for junction
Device 301, memory 302 and communication interface 303 are managed, processor 301, memory 302 and communication interface 303 is made to pass through bus 304
It is in communication with each other.
Specifically, processor 301 is also used to execute a kind of access method of database；Wherein, the access of the database
Method includes:
Intercept the first access request of application system access database；
First access request is converted into the second access request with database matching；
The second access request is sent to database；
Database is received to the first response message of the second access request；
When the first response message is the access data of the first access request, the first response message is sent to application system.
The access equipment 300 of database according to an embodiment of the present invention can correspond to database according to an embodiment of the present invention
Access method in executing subject, and above and other operation of the modules in the access equipment 300 of database and/
Or function is respectively in order to realize the corresponding process of each method of the Fig. 1 into Fig. 2, for sake of simplicity, details are not described herein.
Further embodiment of this invention additionally provides a kind of computer readable storage medium, deposits in computer readable storage medium
Instruction is contained, when instruction is run on computers, so that computer executes the access of database in the above embodiment of the present invention
Method.
Succinct in order to describe, when instruction is run on computers, computer executes data in the above embodiment of the present invention
The process of the access method in library can be referring to figs. 1 to the corresponding process of each method in Fig. 2, and details are not described herein.
Those of ordinary skill in the art may be aware that list described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, in order to clearly demonstrate hardware
With the interchangeability of software, each exemplary composition and step are generally described according to function in the above description.This
A little functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.Specially
Industry technical staff can use different methods to achieve the described function each specific application, but this realization is not
It is considered as beyond the scope of this invention.
It is apparent to those skilled in the art that for convenience of description and succinctly, foregoing description is
The specific work process of system, device and unit, can refer to corresponding processes in the foregoing method embodiment, details are not described herein.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can readily occur in various equivalent modifications or replace
It changes, these modifications or substitutions should be covered by the protection scope of the present invention.Therefore, protection scope of the present invention should be with right
It is required that protection scope subject to.
Claims (14)
1. a kind of access method of database characterized by comprising
Intercept the first access request of application system access database；
First access request is converted into the second access request with the database matching；
Second access request is sent to the database；
The database is received to the first response message of second access request；
When first response message is the access data of first access request, described the is sent to the application system
One response message.
2. the access method of database according to claim 1, which is characterized in that described to convert first access request
For the second access request with the database matching, comprising:
Identify the markup sentence of first access request；
Based on the markup sentence, access request corresponding with the markup sentence is determined from default access request resources bank；
When there is access request corresponding with the markup sentence in the default access request resources bank, will it is described with it is described
The corresponding access request of markup sentence is determined as second access request；
When access request corresponding with the markup sentence is not present in the default access request resources bank, according to default rule
First access request is then converted to the second access request with the database matching.
3. the access method of database according to claim 2, which is characterized in that the interception application system accesses database
The first access request before, further includes:
The default access request resources bank is determined according to the mark of the database.
4. the access method of database according to claim 1, which is characterized in that described to receive the database to described the
After first response message of two access requests, further includes:
When first response message is error indication, receive user instructions, the user instruction includes according to described first
The third access request with the database matching of access request conversion, the error indication is for indicating second access
Request error；
The third access request is sent to the database；
The database is received to the second response message of the third access request；
When second response message is the access data of the third access request, second response message is sent to
The application system.
5. the access method of database according to claim 4, which is characterized in that it is described receive user instructions after, also wrap
It includes:
The third access request is added to default access request resources bank corresponding with the database.
6. the access method of database according to claim 1, which is characterized in that described to convert first access request
Before the second access request with the database matching, further includes:
The type of first access request is issued transaction, identifies transaction information in first access request；
Intercept all first access requests corresponding with the transaction information；
Second access request first access request is converted to the database matching, comprising:
All first access requests of interception are converted to the second access request with the database matching.
7. a kind of access mechanism of database characterized by comprising
Interception unit, for intercepting the first access request of application system access database；
Converting unit, for first access request to be converted to the second access request with the database matching；
Transmission unit, for sending second access request to the database；
Receiving unit, for receiving the database to the first response message of second access request；
The transmission unit is also used to when first response message is the access data of first access request, to institute
It states application system and sends first response message.
8. the access mechanism of database according to claim 7, which is characterized in that the converting unit is also used to:
Identify the markup sentence of first access request；
Based on the markup sentence, access request corresponding with the markup sentence is determined from default access request resources bank；
When there is access request corresponding with the markup sentence in the default access request resources bank, will it is described with it is described
The corresponding access request of markup sentence is determined as second access request；
When access request corresponding with the markup sentence is not present in the default access request resources bank, according to default rule
First access request is then converted to the second access request with the database matching.
9. the access mechanism of database according to claim 8, which is characterized in that further include:
Determination unit, for determining the default access request resources bank according to the mark of the database.
10. the access mechanism of database according to claim 7, which is characterized in that the receiving unit is also used to when described
It when first response message includes error indication, receives user instructions, the user instruction includes according to first access request
The third access request with the database matching of conversion, the error indication is for indicating that second access request is wrong
Accidentally；
The transmission unit is also used to send the third access request to the database；
The receiving unit is also used to receive the database to the second response message of the third access request；
The transmission unit is also used to when second response message is the access data of the third access request, by institute
It states the second response message and is sent to the application system.
11. the access mechanism of database according to claim 10, which is characterized in that further include:
Adding unit, for the third access request to be added to default access request resource corresponding with the database
Library.
12. the access mechanism of database according to claim 7, which is characterized in that further include:
Recognition unit, the type for first access request are issued transaction, identify affairs in first access request
Handle information；
The interception unit is also used to intercept all first access requests corresponding with the transaction information；
The converting unit is also used to be converted to all first access requests intercepted and visit with the second of the database matching
Ask request.
13. a kind of access equipment of database characterized by comprising
Memory, processor, communication interface and bus；
The memory, the processor are connected by the bus with the communication interface and complete mutual communication；
The memory is for storing program code；
The processor is run and the executable program by reading the executable program code stored in the memory
The corresponding program of code, with the access method for executing a kind of database, the access method of the database includes:
Intercept the first access request of application system access database；
First access request is converted into the second access request with the database matching；
Second access request is sent to the database；
The database is received to the first response message of second access request；
When first response message is the access data of first access request, described the is sent to the application system
One response message.
14. a kind of computer readable storage medium, which is characterized in that including instruction, when described instruction is run on computers,
So that the computer executes method as claimed in any one of claims 1 to 6.
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