CN106406828A - Method and apparatus for modifying business tool function of JAVA system - Google Patents
Method and apparatus for modifying business tool function of JAVA system Download PDFInfo
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Abstract
Embodiments of the invention disclose a method and an apparatus for modifying a business tool function of a JAVA system. The method comprises the steps of obtaining a modification function code of a target business tool; compiling the modification function code to a target function code identifiable for a JAVA virtual machine; loading the target function code to a memory of the virtual machine, and determining a first storage address of the target function code in the memory of the JAVA virtual machine; and updating a function realization address of the target business tool in the JAVA virtual machine to the first storage address, and running a function code corresponding to the function realization address by the JAVA virtual machine. By adopting the method and the apparatus, the efficiency of modifying the business tool function of the JAVA system can be improved.
Description
Technical field
The present invention relates to Internet technical field, more particularly to a kind of method of modification JAVA system business instrumental function
And device.
Background technology
JAVA system refers to the system being capable of specific function write with JAVA language.Generally, a JAVA system
Including multiple business tools being capable of difference in functionality.For example, a JAVA system may include authorization check business tool
With workflow management business tool, wherein, described authorization check business tool, for verifying the behaviour logging in JAVA system user
Make authority；Described workflow management business tool, for managing the operating process of whole JAVA system.
In actual applications, after JAVA system development completes to come into operation, in order to improve and optimize whole JAVA system
Function, developer often have modification business tool function demand.Such as, a JAVA system, in exploitation,
The function that its authorization check business tool is realized be verification user log in input user name whether legal.But, it is being
During system uses, user's login system for convenience, need this JAVA system to be not only able to support that user name logs in, also
Can support that email address and telephone number are logged in.This requires authorization check business tool, except supporting user name
Verification outside, also support the verification of email address and telephone number.
At present, the function of typically adopting the business tool to JAVA system with the following method is modified.First, exploit person
The artificial function code searching the business tool that need to change function of member；Then, this function code is modified；Due to mesh
Front all of JAVA system is based on what JAVA virtual machine was run on the server, and therefore, developer also needs to change
Function code afterwards is compiled as the form that JAVA virtual machine can identify, and is manually copied to the function code after compiling
The relevant position of the server of JAVA virtual machine；Finally, restart described server, so that described JAVA virtual machine is from institute
State and in server, reload function code, so that the function of amended business tool comes into force.Using above-mentioned modification side
Method, after user changes the function code of business tool, also needs to restart server, just can make amended business tool
Function comes into force, and this undoubtedly reduces the efficiency of modification business tool function.
Content of the invention
Provide a kind of method and device of modification JAVA system business instrumental function in the embodiment of the present invention, repaiied with improving
Change the efficiency of JAVA system business instrumental function.
In order to solve above-mentioned technical problem, the embodiment of the invention discloses following technical scheme：
A kind of method of modification JAVA system business instrumental function, including：
Obtain the modification function code of target service instrument；
Compiling described modification function code is JAVA virtual machine discernible objective function code；
Load described objective function code to the internal memory of described virtual machine, and determine described objective function code in described JAVA
The first storage address in virutal machine memory；
Updating functional realiey address in described JAVA virtual machine for the described target service instrument is described first storage address,
Described JAVA virtual machine runs the function code corresponding to described functional realiey address.
Preferably, the described internal memory loading described objective function code extremely described virtual machine, including：
Instantiate the Classloader of described JAVA virtual machine；
Call described Classloader, described Classloader loads described objective function code to the internal memory of described virtual machine.
Preferably, described compiling described modification function code is JAVA virtual machine discernible objective function code, including：
If the programming language that described modification function code is adopted is Groovy, call the JAVA of described Groovy language
Application programming interface API is compiled to described modification function code, obtains described objective function code.
Preferably, described compiling described modification function code is JAVA virtual machine discernible objective function code, including：
If the programming language that described modification function code is adopted is MVEL, the JAVA of described MVEL language is called to apply
Program Interfaces API is compiled to described modification function code, obtains described objective function code.
Preferably, described renewal functional realiey address in described JVAVA virtual machine for the described target service instrument be institute
Before stating the first storage address, also include：
Judge whether the current functional realiey address of described target service instrument is effective；
If effectively, deleting the function code corresponding to current functional realiey address.
The invention also discloses a kind of device of modification JAVA system business instrumental function, including：
Acquisition module, for obtaining the modification function code of target service instrument；
Collector, is JAVA virtual machine discernible objective function code for compiling described modification function code；
Load-on module, for loading described objective function code to the internal memory of described virtual machine, and determines described objective function
First storage address in described JAVA virtual machine internal memory for the code；
Update module, is institute for updating functional realiey address in described JAVA virtual machine for the described target service instrument
State the first storage address, described JAVA virtual machine runs the function code corresponding to described functional realiey address.
Preferably, described load-on module, including：
Example element, for instantiating the Classloader of described JAVA virtual machine；
Classloader call unit, is used for calling described Classloader, and described Classloader loads described objective function code
To the internal memory of described virtual machine.
Preferably, described collector, including：
First API Calls unit, for when the programming language that described modification function code is adopted is Groovy, adjusting
With JAVA application programming interface API of described Groovy language, described modification function code is compiled, obtains
Described objective function code.
Preferably, described collector, also includes：
Second API Calls unit, for when the programming language that described modification function code is adopted is MVEL, calling
JAVA application programming interface API of described MVEL language is compiled to described modification function code, obtains described
Objective function code.
Preferably, described device also includes：
Judge module, whether the current functional realiey address for judging described target service instrument is effective；
Removing module, for when described current functional realiey address is effective, deleting corresponding to current functional realiey address
Function code.
Beneficial effects of the present invention include：Because JAVA virtual machine runs described functional realiey ground in embodiments of the present invention
Function code corresponding to location, therefore, the functional realiey address of target service instrument is updated to described first storage address,
Achievable JAVA virtual machine runs the function code corresponding to described first storage address, and then realizes changing immediately target industry
Work the function of tool, and JAVA virtual machine need not be restarted and run required server, thus improve the modification of JAVA system
The efficiency of business tool function.
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
Technology description in required use accompanying drawing be briefly described it should be apparent that, for those of ordinary skill in the art
Speech, without having to pay creative labor, can also obtain other accompanying drawings according to these accompanying drawings.
Fig. 1 is a kind of method one schematic flow sheet of modification JAVA system business instrumental function provided in an embodiment of the present invention；
Fig. 2 is that a kind of another flow process of method of modification JAVA system business instrumental function provided in an embodiment of the present invention is illustrated
Figure；
Fig. 3 is that a kind of another flow process of method of modification JAVA system business instrumental function provided in an embodiment of the present invention is illustrated
Figure；
Fig. 4 is an a kind of structural representation of the device of modification JAVA system business instrumental function provided in an embodiment of the present invention
Figure；
Fig. 5 is that a kind of another structure of the device of modification JAVA system business instrumental function provided in an embodiment of the present invention is shown
It is intended to；
Fig. 6 is that a kind of another structure of the device of modification JAVA system business instrumental function provided in an embodiment of the present invention is shown
It is intended to；
Fig. 7 is that a kind of another structure of the device of modification JAVA system business instrumental function provided in an embodiment of the present invention is shown
It is intended to.
Specific embodiment
The embodiment of the present invention provides a kind of method and device of modification JAVA system business instrumental function, to improve modification
The efficiency of JAVA system business instrumental function.
First the method for the modification JAVA system business instrumental function of the embodiment of the present invention is illustrated, as shown in figure 1,
At least include：
Step S11：Obtain the modification function code of target service instrument；
In embodiments of the present invention, a unique mark, institute can all be distributed for each business tool in JAVA system
State mark and can be specially KEY mark.In embodiments of the present invention, each business tool of MAP data structure storage can be used
Mark and source function code storage address.By described MAP data store organisation, can achieve each business tool mark
Know the mapping with the storage address of source function code, that is, by the mark of business tool, described business tool institute can be found
Corresponding source function code.
In embodiments of the present invention, target service instrument can be searched according to the mark of the target service instrument of user input
Source function code, and this source function code is shown to user；Now, user can according to demand, to described source function generation
Code is modified；Corresponding, in embodiments of the present invention for, receive user operates to the modification of source function code, and
By amended source function code, as modification function code.
Step S12：Compiling described modification function code is JAVA virtual machine discernible objective function code；
In embodiments of the present invention, described modification function code can be compiled as JAVA virtual machine discernible JAVA word
Save code, that is, the instruction format of described objective function code is specially JAVA bytecode.
Step S13：Load described objective function code to the internal memory of described virtual machine, and determine described objective function code
The first storage area in described JAVA virtual machine internal memory；
Step S14：Updating functional realiey address in described JAVA virtual machine for the described target service instrument is described the
One storage address, described JAVA virtual machine runs the function code corresponding to described functional realiey address.
In embodiments of the present invention, specifically a buffer area can be distributed in the internal memory of JAVA virtual machine, for storing JAVA
Functional realiey address in JAVA virtual machine for all business tools in system.
In embodiments of the present invention, in described buffer area, the mark of MAP data structure storage each business tool may also be employed
Know and the functional realiey address in JAVA virtual machine internal memory.Therefore, in embodiments of the present invention, by target service work
The mark of tool, you can find the functional realiey address of described target service instrument in described buffer area, then updates institute
Stating functional realiey address is described JAVA address, you can realize the modification of described target tool function.
Therefore, in embodiments of the present invention, because JAVA virtual machine is run corresponding to described functional realiey address
Function code, therefore, the functional realiey address of target service instrument is updated to described first storage address, achievable JAVA
Virtual machine runs the function code corresponding to described first storage address, and then realizes changing the work(of target service instrument immediately
Can, and JAVA virtual machine need not be restarted and run required server, thus improve JAVA system modification business tool work(
The efficiency of energy.
In embodiments of the present invention, as shown in Fig. 2 step S13 in above-mentioned all embodiments, may particularly include：
Step S21：Instantiate the Classloader of described JAVA virtual machine；
In embodiments of the present invention, the process of the Classloader of the described JAVA virtual machine of enforcementization, that is, create described JAVA
The process of the Classloader of virtual machine.
Step S22：Call described Classloader, described Classloader loads described objective function code to described virtual machine
Internal memory in.
In embodiments of the present invention, specifically can adopt code below, realize said process：
Byte [] classBytes=objective function code；
JavaCodeClassLoader loader=new JavaCodeClassLoader ()；// instantiation Classloader；
Class<？>NewClass=loader.loadByBytes (className, classBytes)；// call class
Loader.
Therefore, using said method, can achieve objective function code, be loaded onto in the internal memory of JAVA virtual machine.
In another possible embodiments of the present invention, step S12 in above-mentioned all embodiments may particularly include：
Because in actual applications, different user may the source function generation to target service instrument for the different programming language of preference
Code is modified.Therefore, in embodiments of the present invention, there is provided three kinds of programming languages, select for user, respectively
Groovy, MVEL and JAVA programming language.
In embodiments of the present invention, when user selects Groovy language modification function code, call described Groovy language
The JAVA API (Appl ication Programming Interface, application programming interface) of speech is to described modification
Function code is compiled, that is, can get described objective function code.
In actual applications, Groovy programming language itself carries JAVA api interface, and described JAVA api interface can be certainly
The dynamic modification function code writing Groovy language is converted to JAVA virtual machine discernible objective function code, certainly,
In embodiments of the present invention, described objective function code can be specially JAVA bytecode.
In embodiments of the present invention, can specifically adopt following procedure, call the JAVA API that described Groovy language is write
Interface, the modification function code that Groovy language is write is converted to JAVA bytecode：
Class<Script>GroovyClass=(Class<Script>) groovyLoader.parseClass (" repaiies
Change function code ")；
The modification function code of groovyClass.newInstance () // write Groovy language is converted to JAVA
Bytecode.
In embodiments of the present invention, when user selects MVEL language to write modification function code, call described MVEL language
The JAVA API of speech is compiled to described modification function code, obtains described objective function code.
In actual applications, MVEL programming language itself also carries JAVA api interface, and described JAVA api interface can be certainly
The dynamic modification function code writing MVEL language is converted to JAVA virtual machine discernible objective function code, certainly,
In embodiments of the present invention, described objective function code is specially JAVA bytecode.
In embodiments of the present invention, can specifically adopt following procedure, call the JAVA API that described MEVL language is write to connect
Mouthful, the modification function code that MVEL language is write is converted to JAVA bytecode：
Serializable result=MVEL.compileExpression (" modification function code ")；
MVEL.executeExpression (result, " parameter Map ")；The modification function that //MVEL language is write
Code conversion is JAVA bytecode.
In embodiments of the present invention, if user selects JAVA language to write modification function code, can be directly by modification
The JAVA code compilation of function is JAVA bytecode, and specific coding can be as follows：
Therefore, using the method for the present invention, user not only can change the work(of business tool using JAVA programming language
Can, the function of business tool also can be changed using Groovy programming language and MVEL programming language, thus convenient use
Family uses.
In the another possible embodiments of the present invention, as shown in figure 3, before step S14 in above-mentioned all embodiments,
Also include：
Step S31：Judge whether the current functional realiey address of described target service instrument is effective；If effectively, execution
Step S32；Otherwise, terminate flow process；
In embodiments of the present invention, front to address, a buffer area can be distributed in the internal memory of JAVA virtual machine, be used for depositing
The mark of storage business tool and functional realiey address.Therefore, in embodiments of the present invention, can determine whether target service instrument
Whether current functional realiey address is located in the memory range of above-mentioned buffer area, if located in it is believed that effectively；Otherwise,
Think invalid.
Step S32：Delete the function code corresponding to current functional realiey address.
In actual applications, in developer's exploitation JAVA system, convenience has been used subsequently the function of JAVA system to be entered
Row extension, developer can arrange some invalid business tools in JAVA system.Generally adopt invalid business tool
Functional realiey address is set to invalid mode, makes the disabler of business tool.
In actual applications, when user will increase the function of JAVA system, invalid business accordingly can be first looked for
Instrument, then in corresponding storage address, increases corresponding source function code；And corresponding, the source that the present invention will increase
Function code is processed as modification function code, you can so that the function of newly-increased business tool is come into force.
Due in embodiments of the present invention, the limited memory of JAVA virtual machine, the function code of redundancy need to be removed in time, because
This before the function of carrying out business tool is changed, need to determine the current work(of target service instrument in embodiments of the present invention
Whether effective enable address.And when the current functional realiey address determining target service instrument is invalid, JAVA is described
Do not store corresponding function code in internal memory in virtual machine, in the internal memory of JAVA virtual machine, do not have redundancy feature generation
Code.And when the current functional address determining target service instrument is effective, be stored with the internal memory that JAVA virtual machine is described
Corresponding function code, has redundancy feature code in the internal memory of JAVA virtual machine, now should delete current function in time real
Redundancy feature code corresponding to existing address, thus discharging the memory headroom of JAVA virtual machine, improves JAVA virtual machine
The speed of service.
In the another possible embodiments of the present invention, there is provided a kind of method in employing embodiment of the present invention, change business
The method of instrumental function, specific as follows：
For example, the function that the authorization check business tool of a JAVA system is realized, is that 8 telephone numbers are verified,
The source function code of this authorization check business tool, as follows：
Now need the function of this authorization check business tool is modified, be allowed to realize the verification to 11 telephone numbers,
User adopts amending method provided in an embodiment of the present invention, and concrete operations flow process is as follows：
User can log in " the business tool administrative center " of JAVA system system by browser first, subsequently into described power
Limit verification business tool source function code editing interface, select in editing interface a programming language (as JAVA,
Groovy and MEVEL etc.), source function code is modified；When user selects JAVA language modification, described power
The limit verification amended function code of business tool, can be specific as follows；
Finally, click on and preserve, JAVA system can preserve amended source function code to the respective memory locations of server.
And JAVA virtual machine will be compiled to described source function code, be converted to JAVA bytecode, and by JAVA bytecode
It is loaded in the internal memory of virtual machine, and records the storage address in internal memory, finally, update above-mentioned authorization check business tool
Functional realiey address in JAVA virtual machine is described storage address, you can so that the function of authorization check instrument is come into force, real
The now verification to 11 telephone numbers.
By the description of above embodiment of the method, those skilled in the art can be understood that the present invention can borrow
Help software to add the mode of necessary general hardware platform to realize naturally it is also possible to pass through hardware, but in many cases the former
It is more preferably embodiment.Based on such understanding, technical scheme is substantially made to prior art in other words
That contributes partly can be embodied in the form of software product, and this computer software product is stored in a storage medium,
Including some instructions with so that a computer equipment (can be personal computer, server, or network equipment etc.)
The all or part of step of execution each embodiment methods described of the present invention.And aforesaid storage medium includes：Read-only storage
Device (ROM), random access memory (RAM), magnetic disc or CD etc. are various can be with the medium of store program codes.
Corresponding with the embodiment of the method for the modification JAVA system business instrumental function that the present invention provides, the present invention also carries
Supply a kind of device of modification JAVA system business instrumental function, as shown in figure 4, at least including：
Acquisition module 41, for obtaining the modification function code of target service instrument；
Collector 42, is JAVA virtual machine discernible objective function code for compiling described modification function code；
Load-on module 43, for loading described objective function code to the internal memory of described virtual machine, and determines described target work(
Can the first storage address in described JAVA virtual machine internal memory for the code；
Update module 44, for updating functional realiey address in described JAVA virtual machine for the described target service instrument be
Described first storage address, described JAVA virtual machine runs the function code corresponding to described functional realiey address.
Because in embodiments of the present invention, JAVA virtual machine runs the function code corresponding to described functional realiey address, because
This, the functional realiey address of target service instrument is updated to after described first storage address by update module 44, you can realize
JAVA virtual machine runs the function code corresponding to described first storage address, and then realizes changing immediately target service instrument
Function, and JAVA virtual machine need not be restarted and run required server, thus improve JAVA system modification business work
The efficiency of tool function.
In another possible embodiments of the present invention, as shown in figure 5, the load-on module 43 in above-mentioned all embodiments can
Including：
Example element 51, for instantiating the Classloader of described JAVA virtual machine；
Classloader call unit 52, is used for calling described Classloader, and described Classloader loads described objective function generation
Code is to the internal memory of described virtual machine.
Therefore, using the device in the embodiment of the present invention, can achieve that objective function code is loaded onto JAVA is virtual
In the internal memory of machine.
In the another possible embodiments of the present invention, as shown in fig. 6, the collector 42 in above-mentioned all embodiments can
Including：
First API Calls unit 421, for when the described modification programming language that adopted of function code is Groovy,
JAVA application programming interface API calling described Groovy language is compiled to described modification function code, obtains
To described objective function code.
Therefore, using the first API Calls unit 421, achievable user adopts Groovy programming language to change JAVA
The function of target service instrument in system.
In another possible embodiments of the present invention, still as shown in fig. 6, collector 42 in above-mentioned all embodiments
May also include：
Second API Calls unit 422, for when the programming language that described modification function code is adopted is MVEL, adjusting
With JAVA application programming interface API of described MVEL language, described modification function code is compiled, obtains institute
State objective function code.
Therefore, using the second API Calls unit 422, achievable user adopts MVEL programming language to change JAVA
The function of target service instrument in system.
In the another possible embodiments of the present invention, as shown in fig. 7, the device in above-mentioned all embodiments, may also include：
Judge module 71, whether the current functional realiey address for judging described target service instrument is effective；
Removing module 72, for when described current functional realiey address is effective, deleting corresponding to current functional realiey address
Function code.
Using said apparatus, the internal memory of JAVA virtual machine can be discharged in time, improve the speed of service of JAVA virtual machine.
It should be noted that herein, the relational terms of such as " first " and " second " or the like be used merely to by
One entity or operation are made a distinction with another entity or operation, and not necessarily require or imply these entities or behaviour
There is any this actual relation or order between work.And, term " inclusion ", "comprising" or it is any
Other variants are intended to comprising of nonexcludability so that include a series of process of key elements, method, article or
Equipment not only includes those key elements, but also includes other key elements being not expressly set out, or also includes for this mistake
Journey, method, article or the intrinsic key element of equipment.In the absence of more restrictions, " include one by sentence
Individual ... " key element that limits is it is not excluded that also exist in process, method, article or the equipment including described key element
Other identical element.
The above is only the specific embodiment of the present invention, makes skilled artisans appreciate that or realizing the present invention.
Multiple modifications to these embodiments will be apparent to one skilled in the art, and as defined herein one
As principle can realize in other embodiments without departing from the spirit or scope of the present invention.Therefore, this
Bright be not intended to be limited to the embodiments shown herein, and be to fit to and principles disclosed herein and features of novelty
Consistent scope the widest.
Claims (10)
1. a kind of method of modification JAVA system business instrumental function is it is characterised in that include：
Obtain the modification function code of target service instrument；
Compiling described modification function code is JAVA virtual machine discernible objective function code；
Load described objective function code to the internal memory of described virtual machine, and determine described objective function code in described JAVA
The first storage address in virutal machine memory；
Updating functional realiey address in described JAVA virtual machine for the described target service instrument is described first storage address,
Described JAVA virtual machine runs the function code corresponding to described functional realiey address.
2. method according to claim 1 is it is characterised in that load described objective function code to described virtual machine
Internal memory, including：
Instantiate the Classloader of described JAVA virtual machine；
Call described Classloader, described Classloader loads described objective function code to the internal memory of described virtual machine.
3. method according to claim 1 is it is characterised in that compiling described modification function code is that JAVA is virtual
Machine discernible objective function code, including：
If the programming language that described modification function code is adopted is Groovy, call the JAVA of described Groovy language
Application programming interface API is compiled to described modification function code, obtains described objective function code.
4. method according to claim 1 is it is characterised in that compiling described modification function code is that JAVA is virtual
Machine discernible objective function code, including：
If the programming language that described modification function code is adopted is MVEL, the JAVA of described MVEL language is called to apply
Program Interfaces API is compiled to described modification function code, obtains described objective function code.
5. method according to claim 1 is it is characterised in that updating described target service instrument in described JVAVA
Before functional realiey address in virtual machine is described first storage address, also include：
Judge whether the current functional realiey address of described target service instrument is effective；
If effectively, deleting the function code corresponding to current functional realiey address.
6. a kind of device of modification JAVA system business instrumental function is it is characterised in that include：
Acquisition module, for obtaining the modification function code of target service instrument；
Collector, is JAVA virtual machine discernible objective function code for compiling described modification function code；
Load-on module, for loading described objective function code to the internal memory of described virtual machine, and determines described objective function
First storage address in described JAVA virtual machine internal memory for the code；
Update module, is described for updating functional realiey address in described JAVA virtual machine for the described target service instrument
First storage address, described JAVA virtual machine runs the function code corresponding to described functional realiey address.
7. device according to claim 6 is it is characterised in that described load-on module, including：
Example element, for instantiating the Classloader of described JAVA virtual machine；
Classloader call unit, is used for calling described Classloader, and described Classloader loads described objective function code
To the internal memory of described virtual machine.
8. device according to claim 6 is it is characterised in that described collector, including：
First API Calls unit, for when the programming language that described modification function code is adopted is Groovy, calling
JAVA application programming interface API of described Groovy language is compiled to described modification function code, obtains institute
State objective function code.
9. device according to claim 6, it is characterised in that described collector, also includes：
Second API Calls unit, for when the programming language that described modification function code is adopted is MVEL, calling institute
JAVA application programming interface API stating MVEL language is compiled to described modification function code, obtains described mesh
Mark function code.
10. device according to claim 6 is it is characterised in that also include：
Judge module, whether the current functional realiey address for judging described target service instrument is effective；
Removing module, for when described current functional realiey address is effective, deleting corresponding to current functional realiey address
Function code.
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| CN109460243A (en) * | 2018-10-17 | 2019-03-12 | 福建南威软件有限公司 | A kind of online class replacement method of production environment based on Agentmain |
| CN109522214A (en) * | 2018-10-09 | 2019-03-26 | 广州神马移动信息科技有限公司 | Test method, platform, client and system calculate equipment and readable medium |
| CN110018816A (en) * | 2019-04-12 | 2019-07-16 | 王晨 | A kind of virtual machine control system and its control method based on C/C++ compiling system |
| CN112954075A (en) * | 2021-03-29 | 2021-06-11 | 中信银行股份有限公司 | Business function implementation method, system, corresponding device and storage medium |
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