CN105389222B - A kind of methods, devices and systems of dynamic call native interface - Google Patents
A kind of methods, devices and systems of dynamic call native interface Download PDFInfo
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- CN105389222B CN105389222B CN201510937805.3A CN201510937805A CN105389222B CN 105389222 B CN105389222 B CN 105389222B CN 201510937805 A CN201510937805 A CN 201510937805A CN 105389222 B CN105389222 B CN 105389222B
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- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/54—Interprogram communication
- G06F9/547—Remote procedure calls [RPC]; Web services
Abstract
The present invention relates to the method, apparatus and system of a kind of dynamic call native interface, described device includes: native interface management server and native interface management engine；Wherein；Native interface management server manages the native interface of all Web applications, provides increase, updates native interface operation, and it is the application based on HTML, Javascript and CSS language development that the Web for issuing interface call request, which is applied,；Native interface management engine includes interface execution module, interface update module and local storage unit, and response Web carries out interface update according to the instruction of native interface management server using the request for calling local native interface issued.The native interface management engine that the present invention provides interface service and interact with the interface management server of server-side by being integrated into Web application on built-in terminal, it realizes and the dynamic of required native interface is updated or is expanded, and realize on built-in terminal Web application or browser kernel to call the corresponding interface without upgrading.
Description
Technical field
The present invention relates to computer field more particularly to a kind of methods, devices and systems of dynamic call native interface.
Background technique
Web is applied due to being used as development language using HTML, CSS, JavaScript etc., has naturally cross-platform excellent
Gesture, disposable exploitation can operate on a plurality of types of built-in terminal platforms, substantially increase the effect of multi-platform exploitation
Rate receives the favor of more and more people.However, being isolated with equipment API, function since Web application is run in browser
It is subject to certain restrictions, and operational efficiency is also denounced by people always.In addition, Web application usually requires access system
Functions of the equipments, comprising: camera, accelerometer, geographical location information, address list, photo library, storage card and media play etc., this
A little functions are related with hardware or operating system bottom, and Web application does not have required higher-rights, can not call directly.Therefore,
There is an urgent need to a kind of new development modes, and primary technology and Web technology can be used in combination, the tune of functions of the equipments both may be implemented
With and enrich efficient system native interface, and can guarantee cross-platform characteristic to a certain extent.
However, due on current built-in terminal browser relatively simplify, while there are diversified forms for native interface, such as
Java, C/C++ etc., existing browser plug-in mechanism are difficult to support the above demand.This problem is answered, current built-in terminal is clear
Device of looking at mostly uses modification Web engine source code, and the native interface of extension, realization and JavaScript are supported from browser kernel part
Binding.This method needs to obtain platform source code, very big to platform dependence；And for different operating system, need
It carries out repeating to compile exploitation in different platform source code environment, development amount is big, difficult in maintenance.A kind of skill emerging at present
Art is to extend native interface using JavaScript frame, by realizing native interface in application layer.For example, in Android
APP layer realize Java object, will using starting when by the object registration into Web engine, when JavaScript call to should
When interface, the object interface is called to run.
Above method may be implemented to call in the Web application of built-in browser by JavaScript script primary
The technology of interface, but it is required to the built-in native interface in Web engine, application or system in advance, when native interface needs more
When new or increase, upgrade-system or application are needed；In addition, the native interface extended in the application, is only this using itself
It is called, service can not be provided for other application, these all bring great inconvenience to the Web exploitation applied and popularization.
Therefore, it is necessary to a kind of methods of new calling native interface, can move under the premise of not upgrade-system or application
Required native interface is applied in state extension and increase, and can be called by all Web applications run on the system.
Summary of the invention
The object of the present invention is to provide one kind can overcome drawbacks described above dynamic call native interface method, apparatus and
System.
In a first aspect, the present invention provides a kind of methods of dynamic call native interface, comprising: monitor Web application or
Call request of the browser kernel to native interface；The call request listened to is parsed；According to the parsing result, look into
It looks for requested native interface and is loaded into memory；The native interface loaded is called from memory, by implementing result
Return to the Web application for issuing request or browser kernel.
Preferably, the interface name and relevant parameter for including in the call request pass through the spreading parameter in http link
Transmitting, the parsing call request is parsed to the interface name and relevant parameter, and the implementing result is returned
Return be by http link carry out, it is described monitoring be by present condition conversion application programming interfaces RESTful API into
Capable；The method also includes the relevant parameter after parsing is passed to the native interface.
Preferably, the native interface is Java interface: the monitoring is to monitor to call original by JavaScript mode
The event of raw interface；The lookup and load are to look for Jar packet and are loaded into memory；
The calling is to load the Jar packet from memory and be performed by Java reflection mechanism.
Preferably, the native interface is C/C++ interface: the monitoring is to monitor to call original by JavaScript mode
The event of raw interface；The lookup is executed using dynamic link library；The tune is executed using the library function of dynamic link library
With.
Preferably, the method also includes detecting whether the native interface of update or expansion in need, it is based on testing result
Issue update or extended interface request；The detection module is responded；After receiving the response, downloading needs to update
Or the native interface expanded；The verifying of integrality and reliability is carried out to the native interface of downloading；Storage is primary by verification
Interface is for calling.
In second aspect, the present invention provides a kind of devices of dynamic call native interface, including monitor module, parsing mould
Block, loading module, execution module and module is locally stored, in which: the monitoring module is for monitoring in Web application or browser
The call request of native interface is checked, and the call request is passed into the parsing module；The parsing module is for solving
The call request is analysed, and parsing result is passed into loading module；The loading module is used for according to the parsing result,
Described be locally stored in module is searched requested native interface and is loaded into memory；The execution module is from memory
The native interface loaded is called, implementing result is returned to the Web application for issuing request.
Preferably, the interface name and relevant parameter that include in the call request are passed through http chain by the monitoring module
Spreading parameter in connecing passes to the parsing module；The parsing module be to be to the interface name and relevant parameter into
Row parsing: the execution module is also used to for the relevant parameter after parsing being passed to the native interface, and is linked by http
The implementing result is returned to the Web application for issuing request；The module of monitoring is connect in the application program of present condition conversion
Mouth RESTful API.
Preferably, the native interface is Java interface: the monitoring module monitoring is called by JavaScript mode
The event of native interface；The Jar packet found in module is locally stored is loaded into memory by the loading module；It is described to hold
Row module loads the Jar packet from memory, and the calling of native interface is executed by Java reflection mechanism.
Preferably, the native interface is C/C++ interface: the monitoring module is monitored through JavaScript mode tune
With the event of native interface；The loading module searches requested primary connect using dynamic link library in module is locally stored
Mouthful；The execution module calls requested native interface using the library function of dynamic link library.
In the third aspect, the present invention provides a kind of systems of dynamic call native interface, including described in first aspect
Device, detection module, download module, correction verification module, update module and native interface management server, in which: the detection mould
Block is based on testing result to the native interface management server for detecting whether the native interface of update in need or expansion
Issue update or extended interface request；The native interface management server responds the detection module；Detection module
After receiving the response, the download module is called to download the original for needing to update or expand from native interface management server
Raw interface；The correction verification module carries out the verifying of integrality and reliability to the native interface of downloading；The update module will lead to
Cross verification native interface be loaded into it is described be locally stored in module, for execution module calling.
The present invention by be integrated on built-in terminal Web application provide interface service and with the mouthpiece of server-side
The native interface management engine that reason server interacts realizes and the dynamic of required native interface is updated or expanded,
And the corresponding interface can be called without upgrading by realizing on built-in terminal Web application or browser kernel.
Detailed description of the invention
Fig. 1 is the schematic diagram of native interface dynamic expansion device according to an embodiment of the present invention；
Fig. 2 is the flow chart that native interface is called according to the Web of one embodiment of the invention application；
Fig. 3 is the flow chart that native interface is called according to the Web of another embodiment of the present invention application；
Fig. 4 is the flow chart that native interface is called according to the Web application of another embodiment of the invention；
Fig. 5 is the flow chart according to the update native interface module of the embodiment of the present invention.
Specific embodiment
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Present invention aims to overcome that above-mentioned present in the calling native interface technology of built-in browser Web application at present
Defect proposes the method, apparatus and system of a kind of dynamic call native interface, may be implemented in server-side dynamic expansion or modification
Required native interface, Web application or browser kernel can call the corresponding interface without upgrading in terminal, reached dynamic and expanded
Fill the purpose of native interface.
Fig. 1 is the schematic diagram of native interface dynamic expansion system according to an embodiment of the present invention.
As shown in Figure 1, the native interface dynamic expansion system includes native interface management engine and native interface management
Server.
Native interface management engine includes interface execution module, and module and interface update module is locally stored, is responsible for pipe
All native interfaces that Web application is called are managed, provide interface service for Web application, while according in interface management server
Hold and carries out dynamic update.The operation that interface management server provides increase for user, updates native interface in server-side manages institute
There is the native interface of support Web application.It is the application based on HTML, Javascript and CSS language development that Web application, which can be,
It not only can use the cross-platform advantage of Web language in this way, but also abundant and efficient system native interface can be called.When Web is answered
When with the functions of the equipments for needing to access system, such as camera, accelerometer, geographical location information, address list, photo library, storage card
With media play etc., Web is applied to native interface management engine and is issued the request of calling system native interface, and Web application can be
Application based on HTML, Javascript and CSS language development.It should be appreciated that Web shown in Fig. 1 should be understood as
It is one or more.
Further, the interface execution module in the native interface management engine includes monitoring, parsing, load, executing four
A module.It monitors module to be responsible for monitoring the interface call request of Web application, and request content is passed in interface execution module
Parsing module；Parsing module obtains the interface name and correlation of Web application request calling interface by analysis request content
Parameter simultaneously passes it to loading module；The interface name and relevant parameter transmitted according to parsing module, loading module is at this
It searches corresponding interface in ground memory module, and the interface found is loaded into memory (in Fig. 1 not from being locally stored in module
Show) in；Execution module calls the corresponding interface loaded, and incoming parameter from memory, its implementing result is returned to Web
Using.
Preferably, it is contemplated that the good support of http protocol, monitoring module can turn browser using in present condition
Application programming interfaces (the REpresentat ional State Transfer Application Programming changed
Interface, RESTful API) form interface for Web application service is provided, can by HTTP GET, POST, PUSH,
The methods of DELETE realizes that interface calls, interface name and relevant parameter can be linked by http in spreading parameter passed
It passs.
Native interface is generally present in terminal system in the form of Java interface or C++/C interface.For Java interface,
The mode that dynamically load Jar packet can be used realizes the calling of native interface, and required native interface is packaged into Jar packet first,
Jar packet is updated into the memory module of terminal system by interface update module.When needing runnable interface, load is corresponding
Jar packet is called using the reflection mechanism of Java.For C/C++ interface, the mode that dynamic base can be used realizes interface tune
With, such as utilize lookup, load and the operation of dlopen series library function realization interface.
Further, interface update module includes detection, downloading, verification and updates four modules.Detection module detects whether
It is in need update or expansion interface, the native interface management server communication based on testing result and front end, issue update or
Extended interface request；Accordingly, after interface management server judges the update received or extended interface request, to this
Request is responded.After detection module receives the response of interface update or extended operation of interface management server, under calling
It carries module docking oral replacement or expands and be downloaded.After the completion of downloading, correction verification module verifies the integrality of download interface and reliable
Property；It is loaded into and is locally stored in module by update module by the interface of verification, called for interface execution module.
Fig. 2 is the flow chart that native interface is called according to the Web of one embodiment of the invention application, as shown in Figure 2:
In step 201, Web application issues local interface call request, can be presented as that passes through a JavaScript
Mode calls the event of local interface；
Monitoring module in step 202, native interface management engine listens to the event/reception local interface calling and asks
It asks, and passes the request onto parsing module, wherein the interface name and relevant parameter of request call can pass through http chain
Spreading parameter transmitting in connecing.
In step 203, parsing module to http link in spreading parameter in interface name and relevant parameter solve
Analysis, then passes to loading module for the content after parsing；
In step 204, according to parsing module transmitting come interface name and relevant parameter, loading module mould is being locally stored
It searches corresponding interface in block, and the corresponding interface found is loaded into memory from being locally stored in module；
In step 205, execution module calls the corresponding interface loaded from memory, and is passed to the relevant parameter, will
Its implementing result returns to Web application by http link.
The process of interface call method of the present invention is more clearly understood below by a specific example.This specific example
In, native interface is present in terminal system in the form of Java interface.Fig. 3 is the Web according to another embodiment of the present invention
Using the flow chart for calling native interface, as shown in Figure 3:
In step 301, Web application issues calling interface request；
Monitoring module in step 302, native interface management engine, which is monitored, calls local by JavaScript mode
The event of interface, and the interface name of request call and relevant parameter are passed to by interface by the spreading parameter in http link
Parsing module in execution module；
In step 303, interface execution module parsing module parsing http Extended Hyperlink parameter in interface name and
Relevant parameter, and the content after parsing is passed into loading module；
Module is being locally stored in the interface name and relevant parameter transmitted according to parsing module in step 304, loading module
It is middle to search corresponding interface.For Java native interface, be packaged into Jar packet in advance, and by interface update module by Jar packet more
Newly into being locally stored of terminal system.Loading module loads corresponding Jar packet, and Jar packet is put into the class of execution module
In loader.
In step 305, execution module obtains the class in Jar packet, and a specified path is loaded jar packet or class file
To space-like.After loaded, specified class can be loaded by calling directly ClassLoader, then, be generated by reflection real
Its implementing result is returned to Web application by http link to execute calling local interface by example or call method.
The process of interface call method of the present invention is more clearly understood below by a specific example.It is specific real at this
In example, native interface is present in terminal system in the form of C/C++ interface.Fig. 4 is according to another embodiment of the invention
The flow chart of native interface is called in Web application, as shown in Figure 4:
In step 401, Web application issues calling interface request；
Interface execution module monitoring in step 402, native interface management engine is called by JavaScript mode
The event of local interface, and pass through the interface name and relevant parameter of the spreading parameter transmitting request call in http link；
The interface name and correlation of parsing module parsing Web application calling interface in step 403, interface execution module
Parameter, and the content after parsing is passed into loading module；
In step 404, loading module is then according to the interface name of parsing module transmitting and relevant parameter in being locally stored
Search corresponding interface.For C/C++ interface, loaded in the form of dynamic link library.
In step 405, execution module utilizes dlopen, and the series library function such as dlsym opens specified move with designated mode
State connects library file, by handle and connector name acquiring function name or variable name, and return a handle to call into
Journey, execution module realize the lookup, load and operation of interface in the form of dynamic link library.
Fig. 5 is according to the flow chart of the update native interface module of the embodiment of the present invention, as shown in Figure 5:
The interface of interface update module detection local system in step 501, native interface management engine updates or expands
Demand is filled, and issues interface to interface management server and updates or expand request；
In step 502, interface management server updates or is expanded to the interface request and responds, it should be understood that this is asked
It asks and can be from user；
In step 503, interface management server judges whether to interface update or extended operation.Based on judgement, if
Receive the request, then process proceeds to step 504；If refusing the request, process returns to step 502.
In step 504, interface management server returns to interface to the interface update module of native interface management engine and updates
Or expand order.It should be appreciated that when user initiates to update to interface management server or extended interface is requested, interface management clothes
Device be engaged in also to the initiation interface update of the interface update module of native interface management engine or explosion command, specific implementation and above-mentioned behaviour
Make similar, details are not described herein.
In step 505, after the interface that native interface management engine receives interface management server updates or expands order,
Download module is called to carry out interface update；
In step 506, after interface downloading updates, the Integrity And Reliability of correction verification module verifying interface is called；
In step 507, interface that verification passes through is loaded by update module in being locally stored.
It is an advantage of the current invention that built-in terminal is without upgrading Web application or browser kernel, so that it may be answered for Web
With providing new or modified native interface method.It should be appreciated that the native interface in the present invention is not integrated in individually
In Web application, but all Web application is supplied to by the mechanism of RESTFUL API and is called, thus for same portion interface without
It needs each application integrated, improves the ease for use of interface.It will be appreciated by those skilled in the art that being applied instead of Web, explanation
Multiple embodiments described in book similarly suitable the case where being issued by Web browser kernel to the call request of native interface.Separately
Outside, although though a part of submodule in Fig. 1 does not have " module " two word, it will be also be appreciated that corresponding above-mentioned each module is retouched
It states.
Professional should further appreciate that, described in conjunction with the examples disclosed in the embodiments of the present disclosure
Unit and algorithm steps, can be realized with electronic hardware, computer software, or a combination of the two, hard in order to clearly demonstrate
The interchangeability of part and software generally describes each exemplary composition and step according to function in the above description.
These functions are implemented in hardware or software actually, the specific application and design constraint depending on technical solution.
Professional technician can use different methods to achieve the described function each specific application, but this realization
It should not be considered as beyond the scope of the present invention.
The step of method described in conjunction with the examples disclosed in this document or algorithm, can be executed with hardware, processor
The combination of software module or the two is implemented.Software module can be placed in random access memory (RAM), memory, read-only memory
(ROM), electrically programmable ROM, electrically erasable ROM, register, hard disk, moveable magnetic disc, CD-ROM or technical field
In any other form of storage medium well known to interior.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail.It should be understood that being not intended to limit the present invention the foregoing is merely a specific embodiment of the invention
Protection scope.All within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should all include
Within protection scope of the present invention.
Claims (9)
1. a kind of device of dynamic call native interface, including monitor module, parsing module, loading module, execution module and sheet
Ground memory module, in which:
The module of monitoring is used to monitor Web application or call request of the browser kernel to native interface, and by the calling
Request passes to the parsing module；
Parsing result is passed to loading module for parsing the call request by the parsing module；
The loading module is used to search requested native interface in described be locally stored in module according to the parsing result
And it is loaded into memory；
The execution module calls the native interface loaded from memory, and implementing result is returned to the Web for issuing and requesting and is answered
With or browser kernel；
Described device further include: detection module, download module, correction verification module, update module；
The detection module is based on testing result to native interface for detecting whether the native interface of update in need or expansion
Management server issues update or extended interface request, so that the native interface management server carries out the detection module
Response；
After receiving the response, call the download module to download from native interface management server needs the detection module
The native interface for updating or expanding；
The correction verification module carries out the verifying of integrality and reliability to the native interface of downloading；
The update module is locally stored in module described in being loaded by the native interface verified, for the execution module
It calls.
2. the apparatus according to claim 1, in which:
The interface name and relevant parameter that the monitoring module will include in the call request pass through the extension in http link
Parameter passes to the parsing module；
The parsing module is to being parsed to the interface name and relevant parameter:
The execution module is also used to for the relevant parameter after parsing being passed to the native interface, and is linked by http by institute
It states implementing result and returns to the Web application for issuing request or browser kernel；
The module of monitoring uses the application programming interfaces RESTful API converted in present condition to provide service into Web application.
3. the apparatus according to claim 1, wherein the native interface is Java interface:
The module of monitoring monitors the event that native interface is called by JavaScript mode；
The Jar packet found in module is locally stored is loaded into memory by the loading module；
The execution module loads the Jar packet from memory, and the calling of native interface is executed by Java reflection mechanism.
4. the apparatus according to claim 1, wherein the native interface is C/C++ interface:
The module of monitoring monitors the event that native interface is called by JavaScript mode；
The loading module searches requested native interface using dynamic link library in module is locally stored；
The execution module calls requested native interface using the library function of dynamic link library.
5. a kind of system of dynamic call native interface, device and the native interface pipe including one of such as claim 1-4
Manage server.
6. a kind of method of dynamic call native interface, comprising:
Web is monitored using the call request to native interface；
The call request listened to is parsed；
According to parsing result, searches requested native interface and be loaded into memory；
The native interface loaded is called from memory, implementing result is returned in the Web application or browser that issue request
Core；
The native interface for detecting whether update or expansion in need issues update or extended interface request based on testing result；
The update or extended interface request are responded；
After receiving the response, downloading needs the native interface for updating or expanding；
The verifying of integrality and reliability is carried out to the native interface of downloading；
Storage is called by the native interface of verification.
7. according to the method described in claim 6, the interface name and relevant parameter that wherein, in the call request include pass through
Spreading parameter transmitting in http link, parsing the call request is parsed to the interface name and relevant parameter,
The return of the implementing result is to link to carry out by http, and the monitoring is connect by the application program in present condition conversion
Mouth RESTful API is carried out；
The method also includes the relevant parameter after parsing is passed to the native interface.
8. according to the method described in claim 6, wherein, the native interface is Java interface:
The monitoring is to monitor the event that native interface is called by JavaScript mode；
The lookup and load are to look for Jar packet and are loaded into memory；
The calling is to load the Jar packet from memory and be performed by Java reflection mechanism.
9. according to the method described in claim 6, wherein, the native interface is C/C++ interface:
The monitoring is to monitor the event that native interface is called by JavaScript mode；
The lookup is executed using dynamic link library；
The calling is executed using the library function of dynamic link library.
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