CN102739671B - Desktop virtual in a kind of electric power system cooperated computing and application display platform - Google Patents
Desktop virtual in a kind of electric power system cooperated computing and application display platform Download PDFInfo
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Abstract
The invention provides the desktop virtual in a kind of electric power system cooperated computing and application display platform, it comprises: client, server and virtual desktop system; Described client is undertaken alternately by described virtual desktop system and described server; Described virtual desktop system comprises: foreground display unit, background support unit, safe unit and monitoring unit; Described monitoring unit, described foreground display unit, to communicate successively between described safe unit and described background support unit; Described background support unit communicates with described monitoring unit with described foreground display unit respectively.Desktop virtual in electric power system cooperated computing provided by the invention and application display platform, have employed desktop virtual combine with technique Web2.0 technology comparatively popular now and Ajax technology, the simulation computing system of electric power system is built on this virtual desktop system, realize one flexibly, without the need to what install and dispose, cross-platform, can the virtual desktop system of flexible charging.
Description
Technical field
The invention belongs to electric system simulation field, be specifically related to the desktop virtual in a kind of electric power system cooperated computing and application display platform.
Background technology
The power scheduling personnel of electric power system and planning personnel often need to make continual electric analog to the operation and maintenance situation of electrical network and calculate, traditional approach is single user carries out electric power data on unit simulation calculation and data maintenance work to an electric power system, but along with the formation of transregional interconnected network and the continuous expansion of electrical network scale, the simulation calculation of standalone version has been difficult to meet need of work, therefore, corresponding electric analog Computation distribution formula platform is developed in succession, but, traditional standalone version electric power system software application in a distributed system, need to widely apply program and data in user installation, if distributed type colony version more needs Installation and Debugging, then installation database, logging data, finally use calculation procedure, obtain result of calculation, if user goes on business or in site of deployment, capital is because the allocation problem of network and main frame, produce the inconvenience used.
In addition, along with the development of technology and the change of actual conditions, calculation procedure needs to improve upgrading, this just needs version and the data of the program of real-time update simulation computing system, add the use difficulty of simulation computing system, and software is in use if there is problem, developer and user cannot process problem the very first time, and due to the difference of development environment and environment for use, a lot of problem cannot be reduced the very first time, cause economically with temporal loss.And, be no matter the simulation calculation software of standalone version or distributed, all there is the problem of software copyright safety, because no matter be which kind of cryptographic means, if be arranged in individual main frame or certain cluster, be all likely cracked, produce the dispute of intellectual property.
Also have, if use standalone version or distributed power analogue system, because user is local or use in a certain cluster, developer cannot understand the use habit of all users and the usage frequency of software, use habit and the user behavior of user cannot be analyzed, the work such as the data mining of system and user behavior analysis cannot be carried out, increase communication difficulty between developer and user and software improves difficulty.And along with panel computer, the requirement of the universal and exploitation flexibly of smart mobile phone, electric analog computing platform will likely be needed future to run in intelligent terminal or thin-client, and current electric power cooperated computing system is difficult to be transplanted in these intelligent terminals, or certain workload is needed to transplant.
User in use, cannot self-service interpolation oneself wish power system calculation application, the various demands increased in current power system calculation cannot be adapted to flexibly, can only add application needed for oneself by the mode of mounting software, this just creates great restriction to the use of terminal use to power system calculation ability.
Finally, standalone version or distributed power simulation computing system charging way dumb, inaccurate, cannot embody the use amount of simulation computing system user, cause the raising of customer using cost, resource also cannot obtain allocation optimum.
In sum, no matter be the cooperated computing software of standalone version or distributed electric power cooperated computing system, all cannot solve the problem, therefore, need research and design a kind of multi-functional, cross-platform, above-mentioned Problems existing solves by displaying and the usage platform of distributed electric power system cooperated computing application.
Summary of the invention
For overcoming above-mentioned defect, the invention provides the desktop virtual in a kind of electric power system cooperated computing and application display platform, have employed desktop virtual combine with technique Web2.0 technology comparatively popular now and Ajax technology, the simulation computing system of electric power system is built on this virtual desktop system, realize one flexibly, without the need to what install and dispose, cross-platform, can the virtual desktop system of flexible charging.
For achieving the above object, the invention provides the desktop virtual in a kind of electric power system cooperated computing and application display platform, it comprises: client, third-party application server end and virtual desktop system; Described client is undertaken alternately by described virtual desktop system and described server; It is characterized in that, described virtual desktop system comprises: foreground display unit, background support unit, safe unit and monitoring unit; Described monitoring unit, described foreground display unit, to communicate successively between described safe unit and described background support unit; Described background support unit communicates with described monitoring unit with described foreground display unit respectively.
In optimal technical scheme provided by the invention, the data of described background support unit show by described foreground display unit; The request of described background support unit to described foreground display unit responds; The request of described safe unit to client is encrypted and verifies; Described monitoring unit is monitored the using state of internal applications and warning message is passed to described foreground display unit.
In second optimal technical scheme provided by the invention, described foreground display unit comprises: the foreground display module framework set gradually, application icon module, system setup module and login and system loads module.
In 3rd optimal technical scheme provided by the invention, described foreground display module framework is divided into window class framework and suspension member class framework, comprising: maximize button, minimize button and X button, described button carrying iframe element and flash element.
In 4th optimal technical scheme provided by the invention, described application icon module provides an icon shown on virtual desktop system for each application.
In 5th optimal technical scheme provided by the invention, described system setup module provides an Operation system setting page, comprises the Indivitual display of user, page style and the need of fast starting a certain application.
In 6th optimal technical scheme provided by the invention, when the system is initiated or application start time, described login and system loads module ejection system login page; When user's initialization, the personalized application of described login and system loads module dynamic load individual.
In 7th optimal technical scheme provided by the invention, described background support unit, comprising: event processing module, user management module, address management module and application management module; Described event processing module is transferred to described user management module and described address management module after the data that described safe unit transmits being processed respectively; Described address management module transmits data to described application management module.
In 8th optimal technical scheme provided by the invention, described user management module is done as follows user: the increase of user, deletion, and authority is revised, the application management of user and the behavioral statistics of user.
In 9th optimal technical scheme provided by the invention, the address maps of each third-party application server goes by described address management module to corresponding application, and user can increase these addresses, deletes and amendment.
In tenth optimal technical scheme provided by the invention, described application management module is by the every application increasing, delete, amendment virtual desktop system carries, described application management module provides one to number and reference address and icon to each application, and each user as required self-service interpolation applies.
In more preferably technical scheme provided by the invention, described event processing module carries out respective handling to the operation of client.
Provided by the invention second more preferably in technical scheme, and described safe unit comprises: encrypting module, key management module and data signature module; Described encrypting module receives the data of described foreground display unit transmission, and respectively with described key management module and described data signature module communication, described encrypting module adopts RSA cryptographic algorithms be encrypted data and sign.
Provided by the invention 3rd more preferably in technical scheme, described key management module for increasing, delete and amendment one group of public and private key, the PKI of this group key gives third party, and private key is retained by platform, when third-party application calls the public API that virtual desktop system provides, core in request is used public-key and carries out signature computing and enclose signature at request afterbody, when platform receives this ciphertext, meeting private key also carries out once signed calculating to this request, then compare with the signature of afterbody, if consistent, this request can be agreed to, produce the session of once safety, otherwise think that this request is illegal request, do not provide data to requesting party.
Provided by the invention 4th more preferably in technical scheme, and data to be signed are carried out signature computing by described data signature module, and described data signature module installation is in the server of a platform independent.
Provided by the invention 5th more preferably in technical scheme, and described monitoring unit comprises: the application monitoring module be set up in parallel and user behavior monitoring module; Described application monitoring module communicates with described back-office support unit respectively with described user behavior monitoring module.
Provided by the invention 6th more preferably in technical scheme, described application monitoring module sent the packet of certain format in 15 to 30 seconds to server, when back-office support unit receives this packet, reply the packet of a corresponding format, the packet format that this form and monitoring module send is identical, just the mark in packet header is positioned at the different packet of bag that monitoring module sends, to represent that this server can normally run, when described application monitoring module can not receive reply reach 5 to 10 times time, notice application management module stops the use of this application and notifies user.
Provided by the invention 7th more preferably in technical scheme, described user behavior monitoring module is monitored the behavior of each user on virtual desktop platform, and the data of acquisition are saved in user behavior data storehouse, described user behavior data lab setting is in monitoring module.
Provided by the invention 8th more preferably in technical scheme, in the packet of certain format: this form is that packet header adds length value and adds content, its middle wrapping head is flag bit and application numbers, and length describes the data length except packet header and itself, and content is this bag sequence number and timestamp.
Provided by the invention 9th more preferably in technical scheme, and the behavior of user on virtual desktop platform comprises: the number of times using certain to apply and time.
Compared with the prior art, desktop virtual in a kind of electric power system cooperated computing provided by the invention and application display platform, original standalone version electric power system cooperated computing or distributed electric power system cooperated computing can be difficult to Install and configure, data are difficult to reduction protection, high and the charging of program maintenance cost and user data excavate and the problem such as cannot to realize and give a kind of simple solution, by virtual desktop technology, the application of all power system calculations can be concluded to an entrance, user even only needs an intelligent terminal or a thin-client to connect internet, the multiple application such as electric power system cooperated computing can be used, from the angle of computational resource supplier, resource provider need not consider operating system difference and the ambient As of user this locality, the application management end that only need will address be used to give virtual desktop, when computational resource occurs to change or upgrade, seamless migration and upgrading can be realized, user can be obtained to the frequency of utilization of this resource and occupation mode by virtual desktop simultaneously, to promote service and the quality of self application, charging way can realize more distributing rationally of computational resource flexibly simultaneously.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of desktop virtual and application display platform.
Fig. 2 is the embodiment schematic diagram of virtual desktop system.
Fig. 3 is the embodiment schematic diagram of foreground display unit.
Fig. 4 is the embodiment schematic diagram of background support unit.
Fig. 5 is the embodiment schematic diagram of safe unit.
Fig. 6 is the embodiment schematic diagram of monitoring unit.
Embodiment
Technical term is explained:
Electric system simulation: carry out analog electrical Force system running by computer.
Distributed platform: a large amount of calculation task is distributed to different computers and calculates, and the software systems that result is gathered.
Desktop virtual technology: support that the Remote Dynamic that enterprise-level realizes desktop system accesses the technology unifying trustship with data center.
Technical problem to be solved by this invention
The present invention will build the software administration of a set of electric power system cooperated computing and display platform, by Internet technology and desktop virtual technology, make user feel anywhere in any terminal all at oneself exclusive power system computation operating platform of use, and from the angle of software metric tools person and developer, this system provides a software application and distribution platform, the usage frequency of the use habit of user and software can be supplied to software metric tools and exploitation side by this platform simultaneously, possesses certain billing function simultaneously.
Three targets that this system will realize are: integrate the software of all electric power system cooperated computing on a virtual desktop platform, user can carry out online access by any terminal of Web vector graphic, use all cooperated computing application, two is can manage the computing application that user and platform are carried, three is possess certain user's use habit and data mining capability, realizes simple billing function.
Elaborating of technical solution of the present invention
The structure of virtual desktop system
Desktop virtual technology is computer technology popular in recent years, and simple, desktop virtual refers to: support that the Remote Dynamic that enterprise-level realizes desktop system accesses the technology unifying trustship with data center.A vivid analogy is exactly today, and we can pass through any equipment, in any place, our mailing system of access on network, or net dish any time; And future, we can pass through any equipment, in any place, the desktop system belonging to we individual on network is accessed any time.According to time sequencing, desktop virtual probably experienced by several stage:
Remote desktop
Remote desktop technology, the people of the nearly all IT of being engaged in technology used.The remote desktop be built in Windows XP employs RDP (Remote Desktop Protocol) agreement, makes user from Telnet other computer, access and can use target desktop.The access protocal of the RDP agreement Terminal Service (Terminal Service) of Microsoft on Windows Server the earliest, achieve the multi-user mode on Windows Server, make user can under the condition of any application is not installed in this locality, the various application on long-range use server.This technology is transferred on the manipulator screen of user's reality by runnable interface on target machine, and by keyboard, a series of peripheral hardware input such as mouse, is transferred to target machine, realizes mutual.Not being both of Terminal Service and remote desktop, the former operational applications, and the latter will have the control of whole desktop.
No matter how title is named, but can find out the predecessor of desktop virtual technology---and remote desktop has identical origin with present applying virtual technology.This is also the core of desktop virtual technology today, there is this technology just, us are made to become possibility by the desktop of remote access oneself, also user used and carried out organically being separated with the contradiction that back-stage management two was difficult to coordinate in the past, what solve that current user uses flexibility to manage with IT unified security conflicts.
First generation desktop virtual technology, truly combines the remote access capability of remote desktop and virtual opetrating system, and the enterprise of desktop virtual is applied also becomes possibility.
First, the maturation of server virtualization technology, and the enhancing of server computational power, make server can provide the computing capability of multiple stage desktop operating system, illustrate with the will strong processor 16G inner server of current 4 core dual processors, if the xp system assignment 256 MB of memory of user, under average level, one station server can support 50-60 desktop and run, then can see, if being concentrated by desktop uses virtual desktop to provide, so the desktop purchase cost of 50-60 platform is by the cost higher than server, and management cost, safety factor, in not also being calculated in, so the appearance of server virtualization technology, enterprise's large-scale application of desktop virtual technology is made to become possibility.
Certainly, if just operation system transition on desktop computer is become the virtual machine that server runs, and user cannot access, yes can not by anyone accept.So the core of virtual desktop is with crucial, not that background server Intel Virtualization Technology says that desktop is virtual, but allow user can by various means, any time, any place, can both have access to oneself desktop, the i.e. ability of remote network access by networked devices by any.And this rotates back into the common ground with applying virtual, i.e. in the high efficiency of remote access protocol.
At present, the leading firm of desktop virtual solution is provided to comprise Microsoft, VMware, Citrix, and use remote access protocol mainly utilizes three kinds of agreements: developed by Citrix in early days, bought by Microsoft afterwards and be integrated in the RDP agreement in Windows, this agreement is used by Microsoft's desktop virtual product, and based on the hardware product such as Sun Ray of Vmware, be also all use RDP agreement; The second is exactly the ICA agreement exclusive at present of Citrix oneself exploitation, and this agreement uses in its applying virtual product and desktop virtual product by Citrix.The third is that VMware is proposed its own PCoIP agreement in recent years, experiences for providing high-quality virtual desktop user.
Second generation virtual desktop technology, makes a general survey of IT technology applicating history, from main frame-Ya terminal hubbed mode the earliest, to PC distribution pattern, to the virtual desktop pattern of today, is that a game calculating the right to use and administrative power develops in fact.Start host mode, centralized management, but application difficult, must go to use to machine room; The PC epoch arrive, and all calculating all occurs on PC, but the management of IT also becomes distributed, and this is also that desktop management person's pressure of why IT department is maximum, and need distributed administrative institute to have the PC of user, the cost of management also significantly rises.User operation environment and running environment split by desktop virtual, simultaneously a position, need not so namely meet the flexible use of user, help IT department to achieve concentrated control simultaneously, thus solve this problem.If but just the pc of 1000 employees is become 1000 virtual machines, so the government pressure of IT keeper may not reduce, and rises on the contrary, only need not run chaotically everywhere.Managerial in order to improve, the running environment of desktop system and installation environment split by second generation desktop virtual technology further, apply and the fractionation of desktop, the fractionation of configuration file, thus greatly reduce management complexity and cost, improve the efficiency of management.
The comprehensive trend developed with the virtual desktop of previous generations, in conjunction with the feature of power system computation application, we have employed second generation virtual desktop technology, but do not adopt above-mentioned live table video intercepting data-transfer protocols, but virtual desktop technology is combined with desktop virtual technology popular at present, with the real system desktop of Web technical modelling user (desktop style of the WinXP system of simulation at present), and each user can have corresponding authority to remove to arrange the virtual desktop system of oneself, simultaneously, the application of oneself also can be added in system by the supplier of application, this application whether is used from main separation by user.
Electric power system cooperated computing virtual desktop platform architecture
This virtual desktop system adopts B/S architectural framework, all application all run in a browser, have nothing to do with native operating sys-tern, the various application that system is run may operate in the server of native system self, also may operate in and provide in the third-party server of service.Position according to application place is divided into two kinds, a kind of application carried for system itself, be called basic application, this application is the application that all users have, be generally office and SNS software, another applications, the system-computed application of such as electric power system, the service end of this application is in other servers, it is mutual with this server end that user accesses actual in virtual desktop system, calculating section has been placed in this server, and virtual desktop just makes display to result of calculation and data.
The message of request service is sent by client, filed a request to virtual desktop by http protocol, sent request to third-party application service end by the security logic of self and related application numbering after virtual desktop receives request, the result that the request of user calculates is sent to requesting party by http protocol in the mode of IFRAME by the situation according to self after application service terminates to request, complete the mutual of a computing application, from the angle of user, this calculating operation occurs in this locality, and from the angle of virtual desktop, this calculation services occurs in computing application server, local and virtual desktop does not participate in any calculating.
As Fig. 2, virtual desktop system specifically can be divided into following module: can be divided into 4 unit as shown above: foreground display unit, background support unit, safe unit, monitoring unit.
Foreground display unit is responsible for the data of background support module to show, also be the originating end that user asks, background support unit is responsible for carrying out corresponding to foreground request, also internal applications and the statistics to user behavior is in charge of, safe unit is responsible for being encrypted the request of user and verifying, monitoring unit is responsible for the using state of monitoring internal applications and warning message etc. is passed to foreground display unit.
Foreground display unit is divided into following submodule, as shown in Figure 3:
Foreground display unit should provide the WEB page of a desktop, and this page should support that user self-help changes background, and this page can embed application display icon, supports iframe;
Foreground display module framework
Foreground display module framework is divided into window class framework and suspension member class framework, and this framework possesses maximization, minimizes, X button, can carry iframe element and flash element, supports that this framework is in the self-service dragging of desktop.
Application icon
For each application provides an icon that can show on the table, an application after clickable icon, can be opened;
Operation system setting
Foreground display module can provide an Operation system setting page, comprises the options such as the Indivitual display of user.
Log in and dynamic load
When the system is initiated or an application start time need the system login page that will eject, when personal user's initialization, can according to the personalized application of background data base dynamic load individual.
Background support unit
Background support unit is mainly responsible for back-end data and the user management of virtual desktop, and the address maps management of application management and application, as shown in Figure 4, is divided into following submodule:
User management module
In background support module, user management submodule is nucleus module, and major function comprises: the increase of user, deletes, and authority is revised, the application management of user, the behavioral statistics etc. of user.
Address management module
Address management module is responsible for the address maps of third-party application on the address of home server.This module supports the increase to application address equally, deletes, modify feature.
Application management module
Application management module in charge will increase every application of deleting amendment virtual desktop and carrying, and application management module in charge provides one to number and reference address and icon to each application, and a user can according to the application of the self-service interpolation of the needs of oneself oneself needs.
Event processing module
Event processing module is responsible for each user when there is an operation on virtual desktop platform, the respective handling that backstage should give, and such as during subscriber switch machine, backstage event processing module should dynamic load and preserve the individuation data of user.
Safe unit
Safe unit is mainly responsible for third-party application by a kind of user profile of safe mode access virtual desktop and group information, as shown in Figure 5, can mainly be divided into following two submodules:
Key management module
Key management module can increase, delete and amendment one group of public and private key, the PKI of this group key gives third-party application side, and private key is retained by virtual desktop platform, when third-party application needs to call the public API that virtual desktop provides, core in request is used public-key and carries out signature computing and enclose signature at request afterbody, when platform side receives this ciphertext, meeting private key also carries out once signed calculating to this request, then compare with the signature of afterbody, if consistent, this request can be agreed to, produce the session of once safety, otherwise will think that this request is illegal request, data cannot be supplied to requesting party.
Data signature module
Data to be signed are carried out signature computing by this module in charge, and this module should be disposed with the server of a platform independent, and this server only possesses simple function, can only be accessed, to increase reliability and the fail safe of whole system by background server simultaneously.
Monitoring unit
Monitoring unit is mainly responsible for monitoring with the behavior of other third-party application servers and user, other application (such as the cooperated computing application etc. of specialty) beyond virtual desktop itself are referred to as third-party application by us, application is caused normally not run in order to prevent the fault due to third-party server, the availability of user's third-party application can be notified in the very first time, monitoring module can monitor the behavior of each user simultaneously, prevent user's malice from using and occupying system resource, simultaneously can the behavior of statistics and analysis user, the usage frequency of statistics application.As shown in Figure 6,2 submodules are mainly divided into:
Application monitoring module
This module in charge sends the packet of certain format within a period of time to third-party server, this packet format is linked up complete with third-party application in advance, when third-party application receives this packet, the packet of a corresponding format will be replied immediately, to represent that this server can normally run, when this module can not receive reply reach certain number of times time, represent that this application goes wrong, can notify that application management module stops the use of this application and notifies user.
User behavior monitoring module
This module in charge is monitored the behavior of each user on virtual desktop platform, such as use certain number of applications, time etc. information, obtain data and be saved in user behavior data storehouse, the usage behavior of user can be analyzed, better to improve the availability of platform and application.
As previously mentioned, also the solution of ready-made external major company can be adopted, the leading firm of desktop virtual solution is provided to comprise Microsoft, VMware, Citrix, and these matured products must use remote access protocol mainly comprises and utilizes three kinds of agreements: developed by Citrix in early days, bought by Microsoft afterwards and be integrated in the RDP agreement in Windows, this agreement is used by Microsoft's desktop virtual product, and based on the hardware product such as Sun Ray of Vmware, be also all use RDP agreement; The second is exactly the ICA agreement exclusive at present of Citrix oneself exploitation, and this agreement uses in its applying virtual product and desktop virtual product by Citrix.The third is that VMware is proposed its own PCoIP agreement in recent years, experiences for providing high-quality virtual desktop user.But use the technology of these manufacturers, the use cost of virtual desktop will certainly be improved, and these matured products are difficult to the demand that can meet our electric power system self completely, and use the agreement of these outside firms, there is problem of data safety, and for these long-range payment agreements, very high for network bandwidth requirement, be difficult to the response time of speed and the user's request ensureing in network environment so complicated at home to run, so use other replacement schemes and inadvisable.
Desktop virtual and application display platform, for the platform adopting Web technology and desktop virtual technology to build the application management of a set of electric power system cooperated computing, by computational resource unified management, unified use, facilitate computational resource provider online upgrading to dispose, user, without the need to the installation of complexity and configuration, easily can use computational resource, do not worry software security problem, flexibly charging way.
Traditional desktop virtual technology, management end is often needed to carry out unified management to the template of virtual desktop, due to gap between user number and template number, a user often can only use several application specially, and due to traditional desktop virtual need long-distance video pay agreement, cause network bandwidth requirement higher, and can produce user's operating lag problem, greatly affect the experience of user.And once the long-distance video that have employed some manufacturers pays agreement, just mean that all clients must adopt identical software merit rating and environment configurations, have impact on the use flexibility of user, also mean and cannot cross-platform cross terminal go to use, and my this invention overcomes these drawbacks of conventional desktop Intel Virtualization Technology, user pays agreement without the need to installing separately any video, little to network bandwidth requirement, undertaken alternately by http agreement, that stateless is mutual, can not have an impact to the experience of user, contrast conventional desktop Intel Virtualization Technology needs to safeguard a large amount of templates, and the use application of user is limited to some extent, this virtual desktop technology can allow the various application oneself liked of the self-service interpolation of terminal use, service end is without the need to being everyone retention system template, significantly reduce workload and the resource consumption of service end.Individual application can load flexibly, without the need to reconfiguring ps template, without the need to any special communication protocol, data are by http protocol interaction, cross-platform and cross-system can be achieved, user only needs an intelligent terminal (such as smart mobile phone being provided with browser, panel computer etc.) or a thin-client, connecting corresponding network (can be internal lan, depend on the position of virtual desktop), just can realize exempting to install, exempt from configuration and use various corresponding power system calculation application.This virtual desktop can also be monitored the service condition of user, the usage frequency that counting user is applied each, application supplier can be supplied to, there is provided the firsthand information such as data mining and user's use habit, being conducive to application supplier can adjust service quality and computing capability according to actual conditions.
It is to be understood that content of the present invention and embodiment are intended to the practical application proving technical scheme provided by the present invention, should not be construed as limiting the scope of the present invention.Those skilled in the art inspired by the spirit and principles of the present invention, can do various amendment, equivalent replacement or improve.But these changes or amendment are all in the protection range that application is awaited the reply.
Claims (1)
1. the desktop virtual in electric power system cooperated computing and an application display platform, it comprises: client, third-party application server end and virtual desktop system; Described client is undertaken alternately by described virtual desktop system and described server; It is characterized in that, described virtual desktop system comprises: foreground display unit, background support unit, safe unit and monitoring unit; Described monitoring unit, described foreground display unit, to communicate successively between described safe unit and described background support unit; Described background support unit communicates with described monitoring unit with described foreground display unit respectively;
The data of described background support unit show by described foreground display unit; The request of described background support unit to described foreground display unit responds; The request of described safe unit to client is encrypted and verifies; Described monitoring unit is monitored the using state of internal applications and warning message is passed to described foreground display unit;
Described foreground display unit comprises: the foreground display module framework set gradually, application icon module, system setup module and login and system loads module;
Described foreground display module framework is divided into window class framework and suspension member class framework, comprising: maximize button, minimize button and X button, button carrying iframe element and flash element;
Described application icon module provides an icon shown on virtual desktop system for each application;
Described system setup module provides an Operation system setting page, comprises the Indivitual display of user, page style and the need of fast starting a certain application;
When the system is initiated or application start time, described login and system loads module ejection system login page; When user's initialization, the personalized application of described login and system loads module dynamic load individual;
Described background support unit, comprising: event processing module, user management module, address management module and application management module; Described event processing module is transferred to described user management module and described address management module after the data that described safe unit transmits being processed respectively; Described address management module transmits data to described application management module;
Described user management module is done as follows user: the increase of user, deletion, and authority is revised, the application management of user and the behavioral statistics of user;
The address maps of each third-party application server goes by described address management module to corresponding application, and user can increase these addresses, deletes and amendment;
Described application management module will increase, delete, every application that amendment virtual desktop system carries, and described application management module provides one to number and reference address and icon to each application, and each user as required self-service interpolation applies;
Described event processing module carries out respective handling to the operation of client;
Described safe unit comprises: encrypting module, key management module and data signature module; Described encrypting module receives the data of described foreground display unit transmission, and respectively with described key management module and described data signature module communication, described encrypting module adopts RSA cryptographic algorithms be encrypted data and sign;
Described key management module for increasing, delete and amendment one group of public and private key, the PKI of this group public and private key gives third party, and private key is retained by platform, when third-party application calls the public API that virtual desktop system provides, core in request is used public-key and carries out signature computing and enclose signature at request afterbody, when platform receives ciphertext, meeting private key also carries out once signed calculating to this request, then compare with the signature of afterbody, if consistent, this request can be agreed to, produce the session of once safety, otherwise think that this request is illegal request, do not provide data to requesting party,
Data to be signed are carried out signature computing by described data signature module, and described data signature module installation is in the server of a platform independent;
Described monitoring unit comprises: the application monitoring module be set up in parallel and user behavior monitoring module; Described application monitoring module communicates with described background support unit respectively with described user behavior monitoring module;
Described application monitoring module sent the packet of certain format in 15 to 30 seconds to server, when background support unit receives this packet, reply the packet of a corresponding format, the packet format that this form and monitoring module send is identical, the packet that just flag bit in packet header is different from the bag that monitoring module sends, to represent that this server can normally run, when described application monitoring module can not receive reply reach 5 to 10 times time, notice application management module stops the use of this application and notifies user;
Described user behavior monitoring module is monitored the behavior of each user on virtual desktop platform, and is saved in user behavior data storehouse by the data of acquisition, and described user behavior data lab setting is in monitoring module;
In the packet of certain format: this form is that packet header adds length value and adds content, and its middle wrapping head is flag bit and application numbers, length describe except packet header and own except data length, content is this bag sequence number and timestamp;
The behavior of user on virtual desktop platform comprises: the number of times using certain to apply and time.
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