CN106484826A - A kind of method and device of operating database - Google Patents
A kind of method and device of operating database Download PDFInfo
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- CN106484826A CN106484826A CN201610860037.0A CN201610860037A CN106484826A CN 106484826 A CN106484826 A CN 106484826A CN 201610860037 A CN201610860037 A CN 201610860037A CN 106484826 A CN106484826 A CN 106484826A
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/21—Design, administration or maintenance of databases
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Abstract
The invention provides a kind of method and device of operating database, the method, including：Pre-set MappedStatement object, set up the corresponding relation of the ID and MappedStatement object of SQL, MappedStatement object includes：SQL statement, the mapping configuration of incoming parameter；Receive the ID of target SQL of outside input and incoming parameter object；According to corresponding relation, determine the ID corresponding target MappedStatement object of SQL；Obtain target SQL statement and the mapping configuration of incoming parameter in target MappedStatement object according to incoming parameter object, determine incoming parameter；Connect data base；According to target SQL statement and incoming parameter, operating database.The invention provides a kind of method and device of operating database, being capable of simpler ground operating database.
Description
Technical field
The present invention relates to field of computer technology, particularly to a kind of method and device of operating database.
Background technology
With the fast development of computer technology, the application of data base is more and more extensive.How operating database is increasingly
It is taken seriously.
In prior art, to be grasped by SQL (Structured Query Language, SQL) sentence
Make data base.For example, need the data of all row in the test table in video data storehouse, need by following SQL statement
Carry out operating database, SQL statement is：SELECT*FROM test.
Visible by foregoing description, need in prior art by SQL statement come operating database, when writing SQL statement,
Should be noted to forget space or the details such as comma, when the condition needing is more, SQL statement must not be omitted after row
Also longer, write SQL statement also more complicated.In a word, using prior art come operating database, more complicated.
Content of the invention
Embodiments provide a kind of method and device of operating database, being capable of simpler ground peration data
Storehouse.
On the one hand, embodiments provide a kind of method of operating database, including：
Pre-set MappedStatement object, set up the ID of SQL SQL with described
The corresponding relation of MappedStatement object, wherein, described MappedStatement object includes：SQL statement, incoming
Parameter mapping configuration；
Receive the ID of target SQL of outside input and incoming parameter object；
According to described corresponding relation, determine the ID corresponding target MappedStatement object of described SQL；
Described target MappedStatement object is parsed according to described incoming parameter object, obtains described target
Target SQL statement in MappedStatement object and the mapping configuration of incoming parameter；
Joined according to the incoming parameter mapping in described incoming parameter object and described target MappedStatement object
Put, determine incoming parameter；
Connect data base；
According to described target SQL statement and described incoming parameter, operate described data base.
Further, described MappedStatement object includes：Result mapping configuration；
Described described target MappedStatement object is parsed according to described incoming parameter object after, further
Including：Obtain the result mapping configuration in described target MappedStatement object；
Described according to described target SQL statement with described incoming parameter, after operating described data base, wrap further
Include：
Obtain the result operating described data base；
Described result is changed according to the result mapping configuration in described target MappedStatement object, raw
Become final result.
Further, described pre-set MappedStatement object, including：
In advance the configuration information of SQL is loaded into described MappedStatement object, the configuration information bag of described SQL
Include：Configuration file including SQL statement and/or the note of Java code.
Further, the type of described final result includes：HashMap, JavaBean, basic data type.
Further, the method further includes：Pre-set the connection pool for preserving database connection resource；
Described connection data base, including：
Described database connection resource is obtained from described connection pool；
According to described database connection resource, set up the connection with described data base.
On the other hand, embodiments provide a kind of device of operating database, including：
First arranging unit, is used for pre-setting MappedStatement object；
Set up unit, the ID for setting up SQL SQL is corresponding with described MappedStatement object
Relation, wherein, described MappedStatement object includes：SQL statement, the mapping configuration of incoming parameter；
Receiving unit, for receiving the ID of target SQL of outside input and incoming parameter object；
First determining unit, for according to described corresponding relation, determining the corresponding target of ID of described SQL
MappedStatement object；
Resolution unit, for parsing described target MappedStatement object according to described incoming parameter object, obtains
Target SQL statement in described target MappedStatement object and the mapping configuration of incoming parameter；
Second determining unit, for according in described incoming parameter object and described target MappedStatement object
The mapping configuration of incoming parameter, determine incoming parameter；
Connection unit, for connecting data base；
Operating unit, for according to described target SQL statement and described incoming parameter, operating described data base.
Further, described MappedStatement object includes：Result mapping configuration；
Described resolution unit, described parses described target according to described incoming parameter object executing
After MappedStatement object, it is further used for obtaining the result mapping in described target MappedStatement object
Configuration；
Further include：
Acquiring unit, for obtaining the result operating described data base；
Converting unit, for mapping described result according to the corresponding result of described target MappedStatement object
Configuration is changed, and generates final result.
Further, described first arranging unit, described for loading into the configuration information of SQL in advance
MappedStatement object, the configuration information of described SQL includes：Configuration file including SQL statement and/or Java code
Note.
Further, the type of described final result includes：HashMap, JavaBean, basic data type.
Further, this device further includes：
Second arranging unit, for pre-setting the connection pool for preserving database connection resource；
Described connection unit, for obtaining described database connection resource from described connection pool, according to described data base
Connection resource, sets up the connection with described data base.
In embodiments of the present invention, pre-set the MappedStatement object including SQL statement, and set up SQL's
ID and the corresponding relation of MappedStatement object, user passes through to input the ID of target SQL and incoming parameter object, you can
Parse target SQL statement and incoming parameter from the ID corresponding MappedStatement object of target SQL, and then according to
Target SQL statement and incoming parameter, operating database, user only need not need to input by writing SQL statement come operating database
The ID of SQL needing and incoming parameter object carry out operating database, being capable of simpler ground operating database.
Brief description
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
Have technology description in required use accompanying drawing be briefly described it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the flow chart of a kind of method of operating database that one embodiment of the invention provides；
Fig. 2 is the flow chart of the method for another kind of operating database that one embodiment of the invention provides；
Fig. 3 is a kind of schematic diagram of the device of operating database that one embodiment of the invention provides；
Fig. 4 is the schematic diagram of the device of another kind of operating database that one embodiment of the invention provides.
Specific embodiment
Purpose, technical scheme and advantage for making the embodiment of the present invention are clearer, below in conjunction with the embodiment of the present invention
In accompanying drawing, the technical scheme in the embodiment of the present invention is clearly and completely described it is clear that described embodiment is
The a part of embodiment of the present invention, rather than whole embodiments, based on the embodiment in the present invention, those of ordinary skill in the art
The every other embodiment being obtained on the premise of not making creative work, broadly falls into the scope of protection of the invention.
As shown in figure 1, embodiments providing a kind of method of operating database, the method can include following walking
Suddenly：
Step 101：Pre-set MappedStatement object, set up the ID and described MappedStatement of SQL
The corresponding relation of object, wherein, described MappedStatement object includes：SQL statement；
Step 102：Receive the ID of target SQL of outside input and incoming parameter object；
Step 103：According to described corresponding relation, determine corresponding target MappedStatement pair of ID of described SQL
As；
Step 104：Described target MappedStatement object is parsed according to described incoming parameter object, obtains described
Target SQL statement in target MappedStatement object and the mapping configuration of incoming parameter；
Step 105：According to the incoming parameter in described incoming parameter object and described target MappedStatement object
Mapping configuration, determines incoming parameter；
Step 106：Connect data base；
Step 107：According to described target SQL statement and described incoming parameter, operate described data base.
In embodiments of the present invention, pre-set the MappedStatement object including SQL statement, and set up SQL's
ID and the corresponding relation of MappedStatement object, user passes through to input the ID of target SQL and incoming parameter object, you can
Parse target SQL statement and incoming parameter from the ID corresponding MappedStatement object of target SQL, and then according to
Target SQL statement and incoming parameter, operating database, user only need not need to input by writing SQL statement come operating database
The ID of SQL needing and incoming parameter object carry out operating database, being capable of simpler ground operating database.
In an embodiment of the present invention, described MappedStatement object includes：Result mapping configuration；
Described described target MappedStatement object is parsed according to described incoming parameter object after, further
Including：Obtain the mapping configuration of described target MappedStatement object corresponding result；
Described according to described target SQL statement with described incoming parameter, after operating described data base, wrap further
Include：
Obtain the result operating described data base；
Described result is changed according to the mapping configuration of described target MappedStatement object corresponding result,
Generate final result.
Result due to operating database may will lose with after data base's disconnection again, in the present embodiment, in order to protect
Hold this and be converted to final result so that final result can be saved as a result, it is desirable to configuration is mapped according to result.For example,
Target SQL statement is query statement, obtains ResultSet result set after operating database, in the present embodiment, will
Data in ResultSet result set is taken out, and just cannot obtain ResultSet result set after not so waiting until to disconnect with data base
In data.
In an embodiment of the present invention, the type of described final result includes：HashMap, JavaBean, master data class
Type.
When the result to operating database is changed, the type in the present embodiment can be converted to.Final result
Type can be determined by incoming parameter object, can include in incoming parameter object：HashMap, JavaBean, basic number
According to type.
In an embodiment of the present invention, described pre-set MappedStatement object, including：
In advance the configuration information of SQL is loaded into described MappedStatement object, the configuration information bag of described SQL
Include：Configuration file including SQL statement and/or the note of Java code.
In the present embodiment, MappedStatement object is obtained by the configuration information of SQL.In the configuration information of SQL
Every SQL statement can correspond to a MappedStatement object.MappedStatement object can be stored interior
In depositing.
In an embodiment of the present invention, the method further includes：Pre-set for preserving database connection resource
Connection pool；
Described connection data base, including：
Described database connection resource is obtained from described connection pool；
According to described database connection resource, set up the connection with described data base.
In order to accelerate the connection speed with data base, in the present embodiment, pre-set connection pool, connect data base
When, directly can obtain database connection resource from connection pool and can be connected with Database, by pre-setting data
Storehouse connection resource, system of realizing is to connect data base's storage allocation resource in advance, when being connected with data base, need not reallocate interior
Deposit resource, save process time.
As shown in Fig. 2 embodiments providing a kind of method of operating database, the method can include following walking
Suddenly：
Step 201：Pre-set MappedStatement object, wherein, MappedStatement object includes：
SQL statement, the mapping configuration of incoming parameter, result mapping configuration.
Specifically, in advance the configuration information of SQL is loaded into MappedStatement object, the configuration information bag of SQL
Include：Configuration file including SQL statement and/or the note of Java code.
MappedStatement object can also include：Incoming parameter mapping configuration.
Step 202：Pre-build the corresponding relation of the ID and MappedStatement object of SQL.
Specifically, the ID of SQL can be one-to-one to liking with MappedStatement.
Step 203：Pre-set the connection pool for preserving database connection resource.
Specifically, multiple database connection resources can be preserved in connection pool.
Step 204：Receive the ID of target SQL of outside input and incoming parameter object.
Step 205：According to corresponding relation, determine the ID corresponding target MappedStatement object of SQL.
Step 206：Target MappedStatement object is parsed according to incoming parameter object, obtains target
Target SQL statement in MappedStatement object, the mapping configuration of incoming parameter and result mapping configuration.
Step 207：Joined according to the incoming parameter mapping in incoming parameter object and target MappedStatement object
Put, determine incoming parameter.
Step 208：Database connection resource is obtained from connection pool.
Specifically, available database connection resource can be obtained from connection pool.
Step 209：According to database connection resource, set up the connection with data base.
Specifically, can be directly connected with Database by database connection resource.
Step 210：According to target SQL statement and incoming parameter, operating database.
Specifically, target SQL statement and incoming parameter are executed in data base.
Step 211：Obtain the result of operating database.
Specifically, after the result of operating database is performance objective SQL statement and incoming parameter in data base, data base
The result of output.
Step 212：Result is changed according to the mapping configuration of target MappedStatement object corresponding result,
Generate final result.
Specifically, the type of final result includes：HashMap, JavaBean, basic data type.
Type required for being converted into by this step.
As shown in Figure 3, Figure 4, embodiments provide a kind of device of operating database.Device embodiment can be led to
Cross software to realize it is also possible to realize by way of hardware or software and hardware combining.For hardware view, as shown in figure 3, being
A kind of a kind of hardware structure diagram of the device place equipment of operating database provided in an embodiment of the present invention, except shown in Fig. 3
Outside processor, internal memory, network interface and nonvolatile memory, the equipment that in embodiment, device is located is generally acceptable
Including other hardware, such as it is responsible for processing forwarding chip of message etc..As a example implemented in software, as shown in figure 4, patrolling as one
Collect the device in meaning, be by the CPU of its place equipment, computer program instructions corresponding in nonvolatile memory to be read
Get and in internal memory, run formation.A kind of device of operating database that the present embodiment provides, including：
First arranging unit 401, is used for pre-setting MappedStatement object；
Set up unit 402, for setting up the ID of SQL SQL and described MappedStatement object
Corresponding relation, wherein, described MappedStatement object includes：SQL statement, the mapping configuration of incoming parameter；
Receiving unit 403, for receiving the ID of target SQL of outside input and incoming parameter object；
First determining unit 404, for according to described corresponding relation, determining the corresponding target of ID of described SQL
MappedStatement object；
Resolution unit 405, for described target MappedStatement object is parsed according to described incoming parameter object,
Obtain the target SQL statement in described target MappedStatement object and the mapping configuration of incoming parameter；
Second determining unit 406, for according to described incoming parameter object and described target MappedStatement object
In the mapping configuration of incoming parameter, determine incoming parameter；
Connection unit 407, for connecting data base；
Operating unit 408, for according to described target SQL statement and described incoming parameter, operating described data base.
In an embodiment of the present invention, described MappedStatement object includes：Result mapping configuration；
Described resolution unit, described parses described target according to described incoming parameter object executing
After MappedStatement object, it is further used for obtaining the result mapping in described target MappedStatement object
Configuration；
Further include：
Acquiring unit, for obtaining the result operating described data base；
Converting unit, for mapping described result according to the corresponding result of described target MappedStatement object
Configuration is changed, and generates final result.
In an embodiment of the present invention, described first arranging unit, described for loading into the configuration information of SQL in advance
MappedStatement object, the configuration information of described SQL includes：Configuration file including SQL statement and/or Java code
Note.
In an embodiment of the present invention, the type of described final result includes：HashMap, JavaBean, master data class
Type.
In an embodiment of the present invention, this device further includes：
Second arranging unit, for pre-setting the connection pool for preserving database connection resource；
Described connection unit, for obtaining described database connection resource from described connection pool, according to described data base
Connection resource, sets up the connection with described data base.
Receiving unit can (Application Programming Interface, application programming connects by API
Mouthful) realizing.
In the embodiment of the present invention, receiving unit is supplied to the interface API of outside use, user can by these API Lai
Manipulate data base, interface layer one receives call request and data analysis layer will be called to complete specific data processing, here
Call request can include：The ID of target SQL and incoming parameter object.
In the embodiment of the present invention, it is possible to achieve connection management, transaction management, configuration load and caching process, by these work(
Most basic assembly can be set to, the data analysis layer for upper strata provides most basic support.
The contents such as the information exchange between each unit in said apparatus, implementation procedure, due to implementing with the inventive method
Example is based on same design, and particular content can be found in the narration in the inventive method embodiment, and here is omitted.
Each embodiment of the present invention at least has the advantages that：
1st, in embodiments of the present invention, pre-set the MappedStatement object including SQL statement, and set up SQL
ID and MappedStatement object corresponding relation, user passes through to input the ID of target SQL and incoming parameter object, that is,
Target SQL statement and incoming parameter, Jin Ergen can be parsed from the ID of target SQL corresponding MappedStatement object
According to target SQL statement and incoming parameter, operating database, user only need not need defeated by writing SQL statement come operating database
Enter the ID of the SQL of needs and incoming parameter object carrys out operating database, being capable of simpler ground operating database.
2nd, in embodiments of the present invention, pre-set connection pool, when connecting data base, can directly obtain from connection pool
The storehouse connection resource that fetches data can be connected with Database, by pre-setting database connection resource, realizes system in advance
For connecting data base's storage allocation resource, when being connected with data base, memory source of need not reallocating, save process time.
It should be noted that herein, such as first and second etc relational terms are used merely to an entity
Or operation is made a distinction with another entity or operation, and not necessarily requires or imply exist between these entities or operation
Any this actual relation or order.And, term " inclusion ", "comprising" or its any other variant are intended to non-
The comprising of exclusiveness, so that including a series of process of key elements, method, article or equipment not only include those key elements,
But also include other key elements being not expressly set out, or also include being consolidated by this process, method, article or equipment
Some key elements.In the absence of more restrictions, the key element being limited by sentence " including ", does not arrange
Remove and also there is other same factor in the process including described key element, method, article or equipment.
One of ordinary skill in the art will appreciate that：The all or part of step realizing said method embodiment can be passed through
Completing, aforesaid program can be stored in the storage medium of embodied on computer readable the related hardware of programmed instruction, this program
Upon execution, execute the step including said method embodiment；And aforesaid storage medium includes：ROM, RAM, magnetic disc or light
Disk etc. is various can be with the medium of store program codes.
Last it should be noted that：The foregoing is only presently preferred embodiments of the present invention, be merely to illustrate the skill of the present invention
Art scheme, is not intended to limit protection scope of the present invention.All any modifications made within the spirit and principles in the present invention,
Equivalent, improvement etc., are all contained in protection scope of the present invention.
Claims (10)
1. a kind of method of operating database is it is characterised in that include：
Pre-set MappedStatement object, set up the ID of SQL SQL with described
The corresponding relation of MappedStatement object, wherein, described MappedStatement object includes：SQL statement, incoming
Parameter mapping configuration；
Receive the ID of target SQL of outside input and incoming parameter object；
According to described corresponding relation, determine the ID corresponding target MappedStatement object of described SQL；
Described target MappedStatement object is parsed according to described incoming parameter object, obtains described target
Target SQL statement in MappedStatement object and the mapping configuration of incoming parameter；
Configured according to the incoming parameter mapping in described incoming parameter object and described target MappedStatement object, really
Fixed incoming parameter；
Connect data base；
According to described target SQL statement and described incoming parameter, operate described data base.
2. method according to claim 1 it is characterised in that
Described MappedStatement object includes：Result mapping configuration；
Described described target MappedStatement object is parsed according to described incoming parameter object after, further include：
Obtain the result mapping configuration in described target MappedStatement object；
Described according to described target SQL statement with described incoming parameter, after operating described data base, further include：
Obtain the result operating described data base；
Described result is changed according to the result mapping configuration in described target MappedStatement object, is generated
Termination fruit.
3. method according to claim 1 it is characterised in that
Described pre-set MappedStatement object, including：
In advance the configuration information of SQL is loaded into described MappedStatement object, the configuration information of described SQL includes：Bag
Include the configuration file of SQL statement and/or the note of Java code.
4. method according to claim 2 it is characterised in that
The type of described final result includes：HashMap, JavaBean, basic data type.
5. according to described method arbitrary in claim 1-4 it is characterised in that
Further include：Pre-set the connection pool for preserving database connection resource；
Described connection data base, including：
Described database connection resource is obtained from described connection pool；
According to described database connection resource, set up the connection with described data base.
6. a kind of device of operating database is it is characterised in that include：
First arranging unit, is used for pre-setting MappedStatement object；
Set up unit, the ID for setting up SQL SQL is corresponding with described MappedStatement object to close
System, wherein, described MappedStatement object includes：SQL statement, the mapping configuration of incoming parameter；
Receiving unit, for receiving the ID of target SQL of outside input and incoming parameter object；
First determining unit, for according to described corresponding relation, determining the corresponding target of ID of described SQL
MappedStatement object；
Resolution unit, for parsing described target MappedStatement object according to described incoming parameter object, obtains described
Target SQL statement in target MappedStatement object and the mapping configuration of incoming parameter；
Second determining unit, for according to the biography in described incoming parameter object and described target MappedStatement object
Enter parameter mapping configuration, determine incoming parameter；
Connection unit, for connecting data base；
Operating unit, for according to described target SQL statement and described incoming parameter, operating described data base.
7. device according to claim 6 it is characterised in that
Described MappedStatement object includes：Result mapping configuration；
Described resolution unit, described parses described target MappedStatement pair according to described incoming parameter object executing
As afterwards, it is further used for obtaining the result mapping configuration in described target MappedStatement object；
Further include：
Acquiring unit, for obtaining the result operating described data base；
Converting unit, for mapping configuration by described result according to the corresponding result of described target MappedStatement object
Changed, generated final result.
8. device according to claim 6 it is characterised in that
Described first arranging unit, for loading into described MappedStatement object, institute by the configuration information of SQL in advance
The configuration information stating SQL includes：Configuration file including SQL statement and/or the note of Java code.
9. device according to claim 7 it is characterised in that
The type of described final result includes：HashMap, JavaBean, basic data type.
10. according to described device arbitrary in claim 6-9 it is characterised in that
Further include：
Second arranging unit, for pre-setting the connection pool for preserving database connection resource；
Described connection unit, for obtaining described database connection resource from described connection pool, connects according to described data base
Resource, sets up the connection with described data base.
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Application publication date: 20170308 |