CN105843892A - Data persistence method, device and system based on Ehcache - Google Patents
Data persistence method, device and system based on Ehcache Download PDFInfo
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2453—Query optimisation
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
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- G06F16/2455—Query execution
- G06F16/24552—Database cache management
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Abstract
The embodiment of the invention provides a data persistence method, device and system based on Ehcache. The method comprises the following steps: an Ehcache cache server receives a first query request initiated from a client side; judging whether to-be-queried data which corresponds to the first query request is stored in memory or not; if the to-be-queried data which corresponds to the first query request is stored in memory, returning the to-be-queried data corresponding to the first query request to the client side; and if the to-be-queried data which corresponds to the first query request is not stored in memory, sending a second query request to a database, receiving to-be-queried data which corresponds to the second query request and is returned from the database, converting to-be-queried data expressed by relational model data into data expressed by a data model in the memory through a POJO (Plain Old Java Object) object, writing the converted data into the memory and the hard disk of the Ehcache cache server, and returning the to-be-queried data to the client side. The method solves the problem in a traditional scheme that data in the memory is lost during outage, and also solves the problem that a plurality of configurations are required for a third-party frame when Java is used for caching.
Description
Technical field
The present invention relates to field of computer technology, in particular to one based on
The data persistence method of Ehcache, Apparatus and system.
Background technology
At present, conventional data query means are that client is directly looked into from data base
Asking, this method needs the digital independent in hard disk to internal memory, and inquiry data are slower；
Another kind of common means are first to inquire about, without to be checked from Java caches
Ask data, then inquire about from data base, but in Java caching can only write data into
In depositing, during power-off, data in EMS memory can be lost, and it is right to use Java caching to need
Third party's frameworks such as Hibernate and MyBatis carry out a lot of configurations, use
The most convenient, wherein Hibernate is the Object Relation Mapping frame of an open source code
Frame, MyBatis is the excellent of the common SQL query of support, storing process and senior mapping
Elegant Persistence Layer Framework.
Summary of the invention
In view of this, the purpose of the embodiment of the present invention is to provide a kind of based on Ehcache
Data persistence method, Apparatus and system is to solve the problems referred to above.
A kind of based on Ehcache data persistence side that the embodiment of the present invention provides
Method, including:
Ehcache caching server receives the first inquiry request that client is initiated；
Described Ehcache caching server judges described corresponding the treating of first inquiry request
Whether inquiry data are stored in internal memory；
If it is, described Ehcache caching server returns and institute to described client
State the data to be checked that the first inquiry request is corresponding；
If it does not, described Ehcache caching server initiates the second inquiry to data base
Request, described Ehcache caching server receive described data base return with described
The data to be checked that second inquiry request is corresponding, wherein, with described second inquiry request
Corresponding data to be checked are represented by relational model data, and described Ehcache caches clothes
The data to be checked that described relational model data are represented by business device are by POJO object
(Plain Ordinary Java Object, simple Java object) is converted in internal memory
The data that represent of data model, the data after converting write described Ehcache and delay
Depositing in internal memory and the hard disk of server, described Ehcache caching server is to client
Return described data to be checked.
A kind of based on Ehcache lasting data makeup that the embodiment of the present invention provides
Put, including:
First receiver module, for receiving the first inquiry request that client is initiated；
Judge module, for judging the data to be checked that described first inquiry request is corresponding
Whether it is stored in internal memory；
Enquiry module, when described data to be checked are not stored in described Ehcache caching
Time in the internal memory of server, for initiating the second inquiry request to data base；
Second receiver module, for receiving the data to be checked returned from data base,
Described data to be checked are relational model data；
Processing module, for leading to the data to be checked that described relational model data represent
Cross the data that the data model that POJO object is converted in internal memory represents, after converting
Data write in the internal memory of described Ehcache caching server and hard disk；
Result returns module, for returning described data to be checked to client.
A kind of based on Ehcache data persistence system that the embodiment of the present invention provides
System, described system includes client, Ehcache caching server and data base,
Described client is used for, and sending the first inquiry to Ehcache caching server please
Ask；
Described Ehcache caching server is used for, and receives and sends from described client
The first inquiry request, it is judged that data to be checked corresponding to described first inquiry request are
No it is stored in internal memory, if it is, return and described first inquiry to described client
The data to be checked that request is corresponding, if it does not, initiate the second inquiry request to data base,
Receive the to be checked number corresponding with described second inquiry request that described data base returns
According to, the data to be checked that described relational model data represent are turned by POJO object
Turning to the data that the data model in internal memory represents, the data write after converting is described
In the internal memory of Ehcache caching server and hard disk, return described to be checked to client
Ask data；
Described data base is used for, receive that described Ehcache caching server is initiated the
Two inquiry request also return the to be checked data corresponding with described second inquiry request.
Compared with prior art, the number based on Ehcache that the embodiment of the present invention provides
According to persistence method, Apparatus and system, use Ehcache caching, it is achieved that simultaneously
Data are recorded so that after power-off, data quickly take from Ehcache in internal memory and hard disk
Business device hard disk returns in internal memory, solves and traditional scheme uses Java caching only
The problem that when causing power-off, data in EMS memory can be lost can be write data in internal memory.
And it is no longer dependent on Hibernate and MyBatis etc. after using Ehcache caching
Third party's framework, solves and needs Hibernate and MyBatis with Java caching
The problem much configured Deng third party's framework.
For making the above-mentioned purpose of the present invention, feature and advantage to become apparent,
Preferred embodiment cited below particularly, and coordinate appended accompanying drawing, it is described in detail below.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be to reality
Execute the required accompanying drawing used in example to be briefly described, it will be appreciated that the following drawings
Illustrate only certain embodiments of the present invention, be therefore not construed as the limit to scope
Fixed, for those of ordinary skill in the art, before not paying creative work
Put, it is also possible to obtain other relevant accompanying drawings according to these accompanying drawings.
The server that Fig. 1 provides for present pre-ferred embodiments interacts with client
Schematic diagram.
The square frame signal of a kind of service end that Fig. 2 provides for present pre-ferred embodiments
Figure.
A kind of based on Ehcache data that Fig. 3 present pre-ferred embodiments provides are held
The flow chart of longization method.
Fig. 4 is the function of a kind of lasting data gasifying device based on Ehcache of the present invention
Module diagram.
Fig. 5 is a kind of based on Ehcache data that present pre-ferred embodiments provides
The schematic diagram of persistent object system.
Main element symbol description:
Service end 100, client 200, network 300, data based on Ehcache
Persistence device 110, memorizer 120, storage control 130, processor 140,
Peripheral Interface the 150, first receiver module 111, judge module 112, enquiry module 113,
Second receiver module 114, processing module 115, result return module 116, Ehcache
Caching server 130, data base 120.
Detailed description of the invention
Below in conjunction with accompanying drawing in the embodiment of the present invention, to the skill in the embodiment of the present invention
Art scheme is clearly and completely described, it is clear that described embodiment is only
The a part of embodiment of the present invention rather than whole embodiments.Generally at accompanying drawing herein
Described in and the assembly of the embodiment of the present invention that illustrates can come with various different configurations
Arrange and design.Therefore, below to the embodiments of the invention provided in the accompanying drawings
Describe the scope of claimed invention of being not intended to limit in detail, but only table
Show the selected embodiment of the present invention.Based on embodiments of the invention, people in the art
The every other embodiment that member is obtained on the premise of not making creative work,
Broadly fall into the scope of protection of the invention.
It should also be noted that similar label and letter represent similar terms in following accompanying drawing,
Therefore, the most a certain Xiang Yi accompanying drawing is defined, then in accompanying drawing subsequently not
Need it to be defined further and explains.Meanwhile, in describing the invention,
Term " first ", " second " etc. be only used for distinguish describe, and it is not intended that instruction or
Hint relative importance.
As it is shown in figure 1, be service end 100 and the visitor of present pre-ferred embodiments offer
The schematic diagram that family end 200 interacts.Described service end 100 is by network and one
Or multiple client 200 is communicatively coupled, to carry out data communication or mutual.This
In embodiment, described service end 100 may be, but not limited to, web (website)
Server, ftp (file transfer protocol, file transfer protocol (FTP)) server etc..
Described client 200 may be, but not limited to, smart mobile phone, PC
(personal computer, PC), panel computer, personal digital assistant (personal
Digital assistant, PDA), mobile internet surfing equipment (mobile Internet device,
MID) etc..Described network 300 may be, but not limited to, cable network or wireless
Network.The operating system of described client 200 may be, but not limited to, Android
(Android) system, IOS (iPhone operating system) system, Windows
Phone system, Windows system etc..
As in figure 2 it is shown, be the block diagram of described service end 100.Described service
End includes that the lasting data gasifying device 110 of Ehcache, memorizer 120, storage control
Device 130, processor 140, Peripheral Interface 150.
Described memorizer 120, storage control 130, processor 140, Peripheral Interface
150 each elements are electrically connected with the most directly or indirectly, to realize the biography of data
Defeated or mutual.Such as, these elements each other can be total by one or more communication
Line or holding wire realize being electrically connected with.Described data query based on Ehcache and with
Step device 110 includes that at least one can be with software or the form of firmware (firmware)
It is stored in described memorizer 120 or is solidificated in the operating system of service end 100
Software function module in (operating system, OS).Described processor 140
For performing the executable module of storage, the most described Ehcache in memorizer 120
The software function module that includes of lasting data gasifying device 110 or computer program.
Wherein, memorizer 120 may be, but not limited to, random access memory
(Random Access Memory, RAM), read only memory (Read Only
Memory, ROM), programmable read only memory (Programmable Read-Only
Memory, PROM), erasable read-only memory (Erasable Programmable
Read-Only Memory, EPROM), electricallyerasable ROM (EEROM) (Electric
Erasable Programmable Read-Only Memory, EEPROM) etc..Its
In, memorizer 120 is used for storing program, and described processor 140 is receiving execution
After instruction, performing described program, aforementioned embodiment of the present invention any embodiment discloses
Flow through the method performed by the server of Cheng Dingyi to can apply in processor, or
Realized by processor.
Processor 140 is probably a kind of IC chip, has the process energy of signal
Power.Above-mentioned processor 140 can be general processor, including central processing unit
(Central Processing Unit is called for short CPU), network processing unit
(Network Processor is called for short NP) etc.；Can also is that digital signal processor
(DSP), special IC (ASIC), ready-made programmable gate array (FPGA) or
Other PLDs, discrete gate or transistor logic, discrete hardware
Assembly.Can realize or perform the disclosed each method in the embodiment of the present invention, step
Rapid and logic diagram.General processor can be microprocessor or this processor also may be used
To be the processor etc. of any routine.
Described Peripheral Interface 150 various input/output devices are coupled to processor and
Memorizer.In certain embodiments, Peripheral Interface, processor and storage control
Can realize in one single chip.In some other example, they can respectively by
Independent chip realizes.
In the embodiment of the present invention, service end 100 is Ehcache caching server,
Data query service is provided for client 200.
Fig. 3, is that the data based on Ehcache that present pre-ferred embodiments provides are held
The flow chart of longization method.Below in conjunction with Fig. 3 the present embodiment is provided in
The data persistence method of Ehcache is described in detail.
Step S310, the first of Ehcache caching server reception client initiation is looked into
Ask request.
Preferably, before described step S310, also include a configuration service device
Step:
Configuring described Ehcache caching server is the mould simultaneously writing internal memory and hard disk
Formula.
Preferably, can arrange in the configuration file of described Ehcache caching server
Parameter overflowToDisk be true.Configuration in this way, it is possible to realize
Ehcache caching server reads while write internal memory.
Further, it is also possible to the configuration literary composition of described Ehcache caching server is set
In part, parameter diskPersistent is true.After configuration in this way, when suddenly
Power-off, Ehcache caching server can restore data to rapidly from hard disk
In internal memory, it is possible to ensure to recover rapidly during Ehcache caching server fault,
Convenient client query next time.
Step S320, described Ehcache caching server judges that described first inquiry please
Whether the data to be checked asking corresponding are stored in internal memory, if it is, perform step
S330, if it does not, perform step S340.
Traditional inquiry be first from hard disk by the digital independent of data base to internal memory
In, inquire about from internal memory the most again.The method that the embodiment of the present invention provides, just
At first, the internal memory of Ehcache caching server and hard disk are all not appoint
What data, when receiving the inquiry of client, by data base from hard disk
Digital independent, in Ehcache caching server internal memory, again returns to client, so
After the data to be checked read be recorded Ehcache caching server internal memory and
In hard disk, when client initiates the inquiry request of same data to be checked next time,
Then directly can inquire about from Ehcache caching server internal memory, the most just can
Reduce the time of reading database data from hard disk.
Step S330, described Ehcache caching server to described client return with
The data to be checked that described first inquiry request is corresponding.
Step S340, described Ehcache caching server is initiated second to data base and is looked into
Ask request.
Step S341, described Ehcache caching server receives described data base and returns
The to be checked data corresponding with described second inquiry request, wherein, with described second
Data to be checked corresponding to inquiry request are represented by relational model data, described Ehcache
The data to be checked that described relational model data represent are passed through POJO by caching server
The data that the data model that object is converted in internal memory represents, the data after converting are write
Enter in internal memory and the hard disk of described Ehcache caching server.
Wherein, the data being stored in data base are the numbers represented by relational model data
According to, it is stored in the data in Ehcache buffer service and returns to the data of client
It is required for the data represented with the data model in internal memory, it is therefore desirable to by relational model
The data that the data model that the second data that data represent are converted in internal memory represents.
Preferably, can be realized described relational model tables of data by POJO object
The data that the data model that the data to be checked shown are converted in internal memory represents.
Further, described POJO object uses enumeration type definition.POJO object
Use the simple data structure of enumeration type, achieve data base by simplest mode
Data are to the mapping of JAVA type memory data, and accelerate data mapping performs effect
Rate, the most also accelerates the speed of inquiry.
On the other hand, owing to the data to be checked after converting can be recorded every time
In the hard disk of Ehcache caching server, when unexpected power-off, Ehcache caches clothes
Business device can restore data to rapidly from the hard disk of Ehcache caching server
In internal memory, it is possible to ensure to recover rapidly during Ehcache caching server fault.
Step S342, described Ehcache caching server is treated to described in client return
Inquiry data.
The data persistence method based on Ehcache that the present embodiment provides, uses
Ehcache caches, it is achieved that records data simultaneously in internal memory and hard disk, and leads to
Cross configuration Ehcache server can also further make after power-off data quickly from
Ehcache server hard disc returns in internal memory, solve in traditional scheme and use
Java caching can only write data in internal memory data in EMS memory when causing power-off and can lose
The problem lost, and use Ehcache caching to be no longer dependent on Hibernate and
Third party's frameworks such as MyBatis, solve need Hibernate with Java caching and
The problem that third party's frameworks such as MyBatis much configure.On the other hand, use
It is to be checked that the POJO object of enumeration type definition realizes representing relational model data
The data that the data model that inquiry data are converted in internal memory represents, accelerate what data mapped
Execution efficiency, inquiry velocity is accelerated.
Refer to Fig. 4, be present pre-ferred embodiments provide Fig. 2 shown in based on
The high-level schematic functional block diagram of the lasting data gasifying device 110 of Ehcache.Described based on
The lasting data gasifying device 110 of Ehcache includes the first receiver module 111, judges mould
Block 112, enquiry module the 113, second receiver module 114, processing module 115 and
Result returns module 116.
Described first receiver module 111, for receiving the first inquiry that client is initiated
Request；
Preferably, receive, at described first receiver module, the first inquiry that client is initiated
Also including before request configuring module, described configuration module is used for configuring described Ehcache
Caching server is the pattern simultaneously writing internal memory and hard disk.
Preferably, described configuration module arranges joining of described Ehcache caching server
Put in parameter overflowToDisk in file and parameter diskPersistent at least
One parameter is true.Configuration parameter overflowToDisk is true, it is possible to realize
Ehcache caching server reads while write internal memory.Configuration parameter diskPersistent is
Very, it is possible to ensure to recover rapidly during Ehcache caching server fault, convenient
Client query next time.
Described judge module 112, for judging described corresponding the treating of first inquiry request
Whether inquiry data are stored in internal memory；
Described enquiry module 113, when described data to be checked are not stored in described
Time in the internal memory of Ehcache caching server, for initiating the second inquiry to data base
Request；
Described second receiver module 114, for receive from data base return to be checked
Asking data, described data to be checked are relational model data；
Described processing module 115, to be checked for what described relational model data were represented
Ask the data that data are represented by the data model that POJO object is converted in internal memory,
Data after converting write internal memory and the hard disk of described Ehcache caching server
In；
Further, described POJO object uses enumeration type definition.POJO object
Achieve the database data mapping to Java type data, therefore use enumeration type
Simple data structure, simplify the mapping relations of data, therefore accelerate inquiry
Speed.
Described result returns module 116, for returning described number to be checked to client
According to.
The most each module can be by software code realization, now, and above-mentioned each module
Can be stored in the memorizer of Ehcache caching server.The most each module equally may be used
To be realized by hardware such as IC chip.
Refer to Fig. 5, be that the one of present pre-ferred embodiments offer is based on Ehcache
Data persistence system, including client 200, Ehcache caching server 130
And data base 120,
Described client 200 is used for, and sends to Ehcache caching server 110
One inquiry request；
Described Ehcache caching server 130 is used for, and receives from described client
200 the first inquiry request sent, it is judged that corresponding to be checked of described first inquiry request
Ask data whether be stored in internal memory, if it is, to described client 200 return with
The data to be checked that described first inquiry request is corresponding, if it does not, to data base 120
Initiate the second inquiry request, receive looking into described second of described data base 120 return
Asking the data to be checked that request is corresponding, described relational model data represented is to be checked
The data that the data model that data are converted in internal memory by POJO object represents, will
Data after conversion write internal memory and the hard disk of described Ehcache caching server 130
In, return described data to be checked to client 200；
Described data base 120 is used for, and receives described Ehcache caching server 130
The second inquiry request the return initiated are corresponding with described second inquiry request to be checked
Data.
It should be noted that each embodiment in this specification all uses the side gone forward one by one
Formula describes, and what each embodiment stressed is the difference with other embodiments,
Between each embodiment, identical similar part sees mutually.
Lasting data gasifying device based on Ehcache that the embodiment of the present invention is provided and
System, its technique effect realizing principle and generation is identical with preceding method embodiment,
For briefly describing, the not mentioned part of device embodiment part, refer to preceding method real
Execute corresponding contents in example.
In several embodiments provided herein, it should be understood that disclosed
Apparatus and method, it is also possible to realize by another way.Device described above
Embodiment is only that schematically such as, flow chart and block diagram in accompanying drawing show
The device of multiple embodiments according to the present invention, method and computer program product can
Architectural framework, function and the operation that can realize.In this, in flow chart or block diagram
Each square frame can represent a module, program segment or a part for code, described
A part for module, program segment or code comprises one or more for realizing regulation
The executable instruction of logic function.It should also be noted that at some as the realization replaced
In mode, the function that marked in square frame can also be marked in accompanying drawing to be different from
Order occurs.Such as, two continuous print square frames can essentially perform substantially in parallel,
They can also perform sometimes in the opposite order, and this is depending on involved function.
It is also noted that each square frame in block diagram and/or flow chart and block diagram and/
Or the combination of the square frame in flow chart, can be with performing the function of regulation or the special of action
Hardware based system realize, or can refer to computer with specialized hardware
The combination of order realizes.
It addition, each functional module in each embodiment of the present invention can be integrated in one
Rise and form an independent part, it is also possible to be modules individualism, it is also possible to
Two or more modules are integrated to form an independent part.
If described function realizes and as independent product using the form of software function module
When product are sold or use, can be stored in a computer read/write memory medium.
Based on such understanding, technical scheme is the most in other words to prior art
The part of the part contributed or this technical scheme can be with the form of software product
Embodying, this computer software product is stored in a storage medium, if including
Dry instruction with so that computer equipment (can be personal computer, server,
Or the network equipment etc.) perform the whole or portion of method described in each embodiment of the present invention
Step by step.And aforesaid storage medium includes: USB flash disk, portable hard drive, read-only storage
Device (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), magnetic disc or CD etc. are various can store program
The medium of code.It should be noted that in this article, such as the first and second grades it
The relational terms of class is used merely to an entity or operates and another entity or behaviour
Make a distinction, and not necessarily require or imply existence between these entities or operation
The relation of any this reality or order.And, term " includes ", " comprising " or
Its any other variant of person is intended to comprising of nonexcludability, so that include one
The process of list of elements, method, article or equipment not only include those key elements, and
And also include other key elements being not expressly set out, or also include for this process,
The key element that method, article or equipment are intrinsic.In the case of there is no more restriction,
The key element limited by statement " including ... ", it is not excluded that including described key element
Process, method, article or equipment in there is also other identical element.
The foregoing is only the preferred embodiments of the present invention, be not limited to this
Invention, for a person skilled in the art, the present invention can have various change and
Change.All within the spirit and principles in the present invention, any amendment of being made, equivalent
Replacement, improvement etc., should be included within the scope of the present invention.It should also be noted that
Similar label and letter in following accompanying drawing represent similar terms, therefore, once certain
One is defined in an accompanying drawing, then need not carry out it in accompanying drawing subsequently
Definition and explanation further.
The above, the only detailed description of the invention of the present invention, but the protection of the present invention
Scope is not limited thereto, and any those familiar with the art is in the present invention
In the technical scope disclosed, change can be readily occurred in or replace, all should contain at this
Within bright protection domain.Therefore, protection scope of the present invention should described be wanted with right
The protection domain asked is as the criterion.
Claims (10)
1. a data persistence method based on Ehcache, it is characterised in that bag
Include:
Ehcache caching server receives the first inquiry request that client is initiated；
Described Ehcache caching server judges described corresponding the treating of first inquiry request
Whether inquiry data are stored in internal memory；
If it is, described Ehcache caching server returns and institute to described client
State the data to be checked that the first inquiry request is corresponding；
If it does not, described Ehcache caching server initiates the second inquiry to data base
Request, described Ehcache caching server receive described data base return with described
The data to be checked that second inquiry request is corresponding, wherein, with described second inquiry request
Corresponding data to be checked are represented by relational model data, and described Ehcache caches clothes
The data to be checked that described relational model data represent are turned by business device by POJO object
Turning to the data that the data model in internal memory represents, the data write after converting is described
In the internal memory of Ehcache caching server and hard disk, described Ehcache caching server
Described data to be checked are returned to client.
Method the most according to claim 1, it is characterised in that described Ehcache
Before caching server receives the first inquiry request that client is initiated, including:
Configuring described Ehcache caching server is the mould simultaneously writing internal memory and hard disk
Formula.
Method the most according to claim 2, it is characterised in that described configuration institute
Stating Ehcache caching server is the pattern simultaneously writing internal memory and hard disk, including:
Parameter in the configuration file of described Ehcache caching server is set
OverflowToDisk is true.
Method the most according to claim 2, it is characterised in that described configuration institute
Stating Ehcache caching server is the pattern simultaneously writing internal memory and hard disk, including:
Parameter in the configuration file of described Ehcache caching server is set
DiskPersistent is true.
Method the most according to claim 1, it is characterised in that described POJO
Object uses enumeration type definition.
6. a lasting data gasifying device based on Ehcache, it is characterised in that bag
Include:
First receiver module, for receiving the first inquiry request that client is initiated；
Judge module, for judging the data to be checked that described first inquiry request is corresponding
Whether it is stored in internal memory；
Enquiry module, when described data to be checked are not stored in described Ehcache caching
Time in the internal memory of server, for initiating the second inquiry request to data base；
Second receiver module, for receiving the data to be checked returned from data base,
Described data to be checked are relational model data；
Processing module, for leading to the data to be checked that described relational model data represent
Cross the data that the data model that POJO object is converted in internal memory represents, after converting
Data write in the internal memory of described Ehcache caching server and hard disk；
Result returns module, for returning described data to be checked to client.
Device the most according to claim 6, it is characterised in that described POJO
Object uses enumeration type definition.
Device the most according to claim 6, it is characterised in that also include configuration
Module, described configuration module is used for configuring described Ehcache caching server for simultaneously
Write the pattern of internal memory and hard disk.
Device the most according to claim 8, it is characterised in that described configuration institute
Stating Ehcache caching server is the pattern simultaneously writing internal memory and hard disk, including:
Parameter in the configuration file of described Ehcache caching server is set
OverflowToDisk is true with at least one parameter in parameter diskPersistent.
10. a data persistence system based on Ehcache, it is characterised in that
Described system includes client, Ehcache caching server and data base,
Described client is used for, and sending the first inquiry to Ehcache caching server please
Ask；
Described Ehcache caching server is used for, and receives and sends from described client
The first inquiry request, it is judged that data to be checked corresponding to described first inquiry request are
No it is stored in internal memory, if it is, return and described first inquiry to described client
The data to be checked that request is corresponding, if it does not, initiate the second inquiry request to data base,
Receive the to be checked number corresponding with described second inquiry request that described data base returns
According to, the data to be checked that described relational model data represent are turned by POJO object
Turning to the data that the data model in internal memory represents, the data write after converting is described
In the internal memory of Ehcache caching server and hard disk, return described to be checked to client
Ask data；
Described data base is used for, receive that described Ehcache caching server is initiated the
Two inquiry request also return the to be checked data corresponding with described second inquiry request.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610166005.0A CN105843892B (en) | 2016-03-22 | 2016-03-22 | Data persistence method, device and system based on Ehcache |
Applications Claiming Priority (1)
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