KR101181879B1 - Method and system for providing web service by using middleware plug-in - Google Patents

Abstract

A system and method are provided that plug into a web browser that provides a web page received over the Internet to a user to control an application associated with the web page. The web service providing system or method of the present invention plugs into a web browser and runs an application program that operates in conjunction with the web browser in a separate process from the web browser, so that the web browser and the application program can exchange data with each other. . The web service providing system and method of the present invention may check the state of an application and re-run the application if it malfunctions or is abnormally terminated. Therefore, according to the present invention, even when an application program operating in conjunction with a web browser malfunctions or abnormally terminates, the web browser can be normally used.

Web Browsers, Plug-ins, Middleware, Web Services, PLUG-IN, MIDDLEWARE

Description

Method and system for providing web service using middleware plug-in. {METHOD AND SYSTEM FOR PROVIDING WEB SERVICE BY USING MIDDLEWARE PLUG-IN}

The present invention relates to a method and system for providing a web service using a middleware plug-in.

Recently, as the Internet is widely used, various fields provide services using the Internet. In particular, because the HTML language based on images and text is used, unlike the previous Internet web services, which mainly provided two-dimensional image and text services, recently, technology such as Active-X that is plugged into a web browser is used. As a result, more various services are provided to the user through the Internet, such as providing a 3D image to the user or providing a security-enhanced service such as Internet banking.

When the module plugged into the web browser is used, the terminal device communicates with the server side without the terminal device simply showing the user to the user through the web browser. Can receive and perform the necessary operations directly to provide a wider range of information to the user.

In particular, when a user wants to provide a 3D graphic image to a user, when a large number of users access the server, if the processing of the 3D graphic is performed on the server side, the operation may be a huge burden on the server side. It is efficient to receive information from the server side in the terminal device and perform an operation for 3D graphics processing based on the information.

In addition, the HTTP protocol is a method in which a server and a terminal device maintain a connection and transmit and receive data in real time, and transmit and receive data through a server side response to a request of the terminal device. There is a limit to providing a real-time service in the manner of showing the screen delivered to the user in the terminal device. Therefore, in order to provide a real-time service, a specific program of a terminal device needs to establish a connection with a server to receive information provided from the server and process the same to provide a service to a user.

1 is a diagram illustrating a screen for providing a 3D graphic service using the plug-in module described above.

As shown in FIG. 1, when a web browser needs to provide a 3D graphic screen to a part of a web page, the screen 110 provided by the plug-in module is provided in a part of the web page. As described above, when the plug-in module is used, the terminal device can process graphic operations or provide real-time data through communication with a server, and can be included in a part of a web page screen provided by a web browser to provide a screen. Therefore, the user can be provided with various services through a familiar web browser.

When providing a service by plugging a module that performs a specific function in a web browser as described above, the process of executing a web browser on a terminal device controls all operations of a plug-in added thereto. Resources will be shared. If more than one plug-in is used in a web browser, both plug-ins are under the control of the process running the web browser and share the process's resources with the web browser.

2 is a diagram illustrating a configuration of providing a web service using a plug-in module according to the related art.

As shown, since the plug-in module 230 is processed by the same process 250 as the web browser 210, a problem occurs in the operation of the plug-in module 230 itself, or the plug-in module 230 and the web browser ( If a problem occurs due to a conflict between resources shared between 210 or between two or more plug-in modules, both the web browser 210 and the linked plug-in module 230 as well as the problematic part may operate properly. There will be no.

That is, when an error occurs in the plug-in module 230 plugged into the web browser 210, a problem occurs not only in the plug-in module 230 but also in the web browser 210 as a whole. There is an inconvenience of forcibly shutting down the system, restarting a new web browser, and accessing the web page again.

The present invention can provide a system and method for allowing a web browser to be used normally even when a problem occurs in an application program providing a service in connection with the web browser.

According to the present invention, a system and method for interworking with a web browser to provide a service when an application program providing a service malfunctions or terminates abnormally can be provided.

Web service providing system according to an embodiment of the present invention can be applied to an Internet terminal device having a CPU and a memory. The web service providing system includes a web browser that provides a web page received through the Internet to a user through a display screen, a recording device that stores an application program operated at the request of the web browser, and is plugged into the web browser. It can include plug-in modules that control the program.

At this time, the plug-in module accesses the recording device and drives the application program to operate in a separate process from the web browser at the request of the web browser, and drives the control message received from the web browser. An application program may be transmitted, and data received from the driven application program may be transmitted to the web browser.

The web service providing system according to another embodiment of the present invention may control an application program stored in a predetermined recording apparatus by being plugged into a web browser that provides a user with a web page received through the Internet through a display screen. The web service providing system is a driving unit for accessing the recording device at the request of the web browser to drive the application program to operate in a separate process from the web browser, and to exchange data with the driven application program. An interface unit for establishing a connection, and a relay unit for transmitting a control message received from the web browser to the driven application program through the interface unit, and transmitting data received from the driven application program to the web browser. have.

In this case, the web service providing system further includes an application address management unit for storing address information indicating a location where the application program is stored in the recording device, and the driving unit accesses the recording device based on the address information. To drive the application program.

At this time, the web service providing system receives information on the window area that the application program should be shown on the display screen from the web browser, and the application program is displayed on the display screen based on the received information. The apparatus may further include a position controller for controlling to be displayed in the area.

At this time, the web service providing system further comprises a status check unit for checking whether the application is malfunctioning or abnormal termination by checking the state of the application, if the application is malfunctioning or abnormal termination, You can run the application again to run in a separate process.

The web service providing method according to an embodiment of the present invention may provide a web service to a user through a display screen by controlling an application program stored in a predetermined recording device in an internet terminal having a CPU and a memory. The web service providing method may include, in response to a request of a web browser, driving the application program to operate in a separate process from the web browser by accessing the recording device, and connecting data to and from the driven application program. And setting a control unit, transmitting a control message received from the web browser to the driven application program, and transmitting data received from the driven application program to the web browser.

The web service providing method may further include maintaining address information indicating a location where the application program is stored in the recording apparatus, and accessing the recording apparatus based on the address information to drive the application program. You can.

According to the present invention, it is possible to provide various web services by interworking an application program operating in a separate process to a web browser.

Using the web service providing system and method according to an embodiment of the present invention, it is possible to use a web browser normally even when an error occurs in an application program.

In addition, according to the web service providing system and method according to an embodiment of the present invention, by minimizing resources shared by the web browser module to be plugged into the web browser, a plurality of web browser and plug-in modules or plugged into one web browser There is an effect that can minimize the possibility of problems caused by conflicts between plug-in modules of.

In addition, according to the web service providing system and method according to an embodiment of the present invention, if the application operating in conjunction with the web browser malfunctions or abnormal termination of the application by re-running the application, a separate operation by the user Problems can be solved without taking

In addition, according to the web service providing system and method according to an embodiment of the present invention, by providing a screen provided by the web browser to the screen provided by the application program operating in conjunction with the web browser, the user by the web browser And it does not recognize the fact that each application is running separately, there is an effect that allows you to use the web services naturally.

In addition, according to the web service providing system and method according to an embodiment of the present invention, the plug-in module controls a plurality of applications, by simply plugging in one plug-in module to the web browser, a plurality of applications are plugged in The same effect can be obtained, and collision between a plurality of plug-in modules can be prevented.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

The web service providing system according to the present invention can be applied to an Internet terminal having a central processing unit (CPU) and a memory (Memory). However, the present invention is not limited to the configuration of the central processing unit and the memory. The Internet terminal device may include a device such as a PDA, a mobile phone, etc., which can be connected to the Internet, in addition to a personal computer (PC) that is generally used.

3 is a diagram schematically illustrating a web service providing system according to an embodiment of the present invention.

The web browser 210 provides a web page received through the Internet to a user through a display screen. The reception of the web page may use the HTTP protocol, and the content of the web page may be configured using a language such as HTML.

The web browser 210 should be able to plug in the plug-in module 310. When the plug-in module 310 is plugged into the web browser 210, one process 250 controls both the web browser 210 and the plug-in module 310. Accordingly, the web browser 210 and the plug-in module 310 use information shared on the process 250 together. In this process, a collision may occur and an error may occur. Accordingly, in the web service providing system according to an embodiment of the present invention, the collision between the web browser 210 and the plug-in module 310 is minimized by minimizing sharing information on the process 250 used by the plug-in module 310. It can prevent.

The plug-in module 310 is plugged into the web browser 210 to control the application 320. As described above, the plug-in module 310 controls the application 320 to minimize the collision with the web browser 210 and transmits data and messages between the web browser 210 and the application 320. The relaying function may be performed and all operations performed to provide a web service to an actual user may be performed by the application program 320.

The plug-in module 310 may drive the application 320 to operate in a process 330 separate from the web browser 210 according to a request of the web browser 210. As described above, all operations performed to provide a web service to an actual user operate in the application 320, which is a process 330 separate from the process 250 of the web browser 210. In this case, if an error occurs in an operation performed to provide a web service, the operation of the web browser 210 is not affected. Therefore, even if a problem occurs in the application 320, the user can use the web browser 210 normally.

The application program 320 may perform an operation that the terminal device needs to process in order to provide a web service to a user in the web browser 210. As shown in FIG. 3, an operation of processing a 3D graphic screen to be displayed on a specific area 220 of the web browser 210 may be performed, or a function for maintaining security in Internet banking may be performed. In addition, any application that may be performed in the terminal device among the operations required to provide a web service may be performed by the application program 320.

The application 320 may be in any form as long as it can be driven in the terminal device. In addition to the compiled machine code operable in the terminal device, a program using a high-level language that can be executed using an interpreter or the like may be used.

Since the application 320 is driven by the request of the web browser 210 and must perform an operation according to the request of the web browser 210, the plug-in module that receives and transmits the control command and data of the web browser 210. It should be possible to establish a connection with 310. Through the set connection, the application program 320 may receive a control command of the web browser 210 and transmit necessary data to the web browser 210.

When the application 320 performs an operation for providing an image shown on the display screen, such as providing a 3D graphic screen, the image may be provided in the window area 220 designated by the web browser 210. have. Although the application 320 operates in a separate process from the web browser 210, if the display screen is shown as a separate program from the web browser 210, it is difficult to provide a natural web service to the user.

Therefore, when the web browser 210 designates the window area 220 showing the image provided by the application 320, the plug-in module 310 controls the application 320 to display the image in the window area 220. To provide video.

In this case, the window area 220 may be a specific area within the web page shown in the web browser 210 as shown in the figure, or may be an area fixed to a specific position on the display screen in the form of a widget or the like.

If the window area 220 exists inside the web browser 210, the window area 220 may be represented as a relative position inside the web browser 210, and the position of the web browser 210 may be represented. In this case, the window area 220 may be changed accordingly, such that the position at which the image provided from the application program 320 is displayed may be naturally changed.

4 is a diagram showing the internal configuration of a web service providing system according to an embodiment of the present invention.

As shown in the figure, the web service providing system 401 according to an embodiment of the present invention includes a web browser 410, a plug-in module 420, and a recording device 430. The above components may be implemented in software, hardware, or a combination of software and hardware, and may be connected to each other. Hereinafter, the components will be described in detail.

The web browser 410 provides a web page received through the Internet to a user through a display screen. The web service providing system 401 may be applied to an Internet terminal having a CPU and a memory, and the web browser 410 provides a service through the Internet to the user.

In general, the web browser 210 receives an Internet address from a user, transmits the Internet address to a domain name server (DNS), receives an IP address corresponding to the Internet address, and uses the IP address. Access the web server corresponding to the address to request a web page using the HTTP protocol, parse the HTML language included in the received web page in response to the request, and display the web page on the display screen based on this. You can do that.

Examples of the web browser 210 include Internet Explorer, Firefox, Netscape, Chrome, and the like. In the present invention, the web browser 210 is limited to any of them. Not.

The plug-in module 420 is plugged into the web browser 410 to control the application 402. An example of the plug-in module 310 is an Active-X module, but the present invention is not limited by the technology used for the configuration of the plug-in module 310, and is plugged into a web browser, and the terminal device may be used. If the application can be run and controlled in a separate process from the web browser, then it can be in any form.

The plug-in module 420 may drive the application 402 to operate in a separate process from the web browser 410 according to a request of the web browser 410. The application 402 processes operations that the plug-in module has processed in the prior art and is controlled by the plug-in module 420 of the present invention. As such, the application 402 operates in a separate process from the web browser 410, thereby preventing a collision between the application 402 and the web browser 410, and even when an error occurs in the application 402. The function of the Woozer 410 can be used normally.

The application 402 is stored in a predetermined recording device 430 and is driven by the plug-in module 420. The recording device 430 may include a magnetic disk such as a hard disk, a floppy disk, an optical disk such as a CD, a DVD, a Blu-ray Disc, and a memory device such as a flash memory or a D-RAM. In addition, any type of device capable of recording data is applicable.

In general, a program is stored in a part of a recording apparatus, and is loaded and operated in a memory (main memory) of the terminal apparatus by driving a user or another program. In the present invention, the application program 402 is stored in the recording device 430, and when the plug-in module 420 approaches and drives the recording device, the application program 402 operates in the memory of the terminal device.

In this case, the plug-in module 420 may include address information indicating a location where the application program 402 is stored in the recording device 430. The plug-in module 420 may access the recording device 430 based on the address information. The application 402 can be driven. The address information may be physical address information or logical address information according to the characteristics of the recording device 430. The address information may indicate a location where the application 402 is stored and installed in the terminal device. While managing the plurality of applications 402, the plug-in module 420 may manage the plurality of address information and may be fixed. It is also possible to run only the application 402 located at the fixed address at any time with the fixed address information.

In addition, the application 402 is already loaded in the memory of the terminal device through a separate loader before the plug-in module 420 is driven, and is activated according to the driving request of the plug-in module 420. It is also possible.

The plug-in module 420 may transmit a control message received from the web browser 410 to the driven application 402 and transmit data received from the driven application 402 to the web browser 410. have. In the present invention, the application program 402 is not intended to independently perform a separate operation, but under the control of the web browser 410 to perform the operation requested by the web browser 410, the web browser 410 web It is a program that helps provide services.

Accordingly, the plug-in module 420 establishes a connection with the application 402, transmits a control message of the web browser 410 to the application 402, and transmits data transmitted from the application 402 to the web browser ( 410).

To this end, the plug-in module 420 must first exchange data with the web browser 410, which may vary depending on the type of the web browser 410, the type of the terminal device, or the operating system. The present invention is not limited by this data transfer method.

For example, when the operating system of the terminal device is a window, when a window message occurs in the web browser 410, a handler called a message handler is called to input the plug-in module 420. Can perform processing functions. In addition, when the web browser 410 is an Internet Explorer, when a web page loaded in the web browser 410 calls a specific function in a script using Active-X technology, The function of the same name of the plug-in module 420 may be called to perform a necessary operation.

As such, the plug-in module 420 plugged into the web browser 410 may receive a message or data from the web browser 410.

Similarly, in the case of Internet Explorer, when the event function is called in the plug-in module 420, using the Active-X technology, a script function of the same name of the web page automatically loaded in the web browser 410 Is called. Even if the web browser 410 is not an Internet Explorer, a message or data can be delivered to the plug-in module 420 in a similar form according to each protocol.

In addition, the plug-in module 420 may establish a connection in order to exchange data with the application program 402. Alternatively, the plug-in module 420 may exchange packets directly through a socket or the like, or may share a shared memory. You can also pass data indirectly. Such a communication method also does not limit the present invention.

The plug-in module 420 receives information on the window area from the web browser 410 that the application 402 should be shown on the display screen, and based on the received information, the application 402 receives the display screen. It can be controlled to be displayed in the window area on the screen.

Conventionally, the plug-in module directly performs operations such as 3D graphics processing, and provides a result of processing in a specific area of the web browser 410 as a screen. Therefore, it is possible to provide a service that is organically connected to other parts of the web page shown in the web browser 410. However, according to the present invention, since the web browser 410 and the application 402 operating in a separate process to process the work, the web browser 410 and the application 402 is a separate program separately. It is likely to feel as if it exists.

Accordingly, the plug-in module 420 controls the application 402 so that the application 402 is displayed in the window area designated by the web browser 410 so that the screen is consistent with the web page provided by the web browser 410. Can be provided.

In this case, the window area may be a specific area within a web page shown in the web browser 410, or may be an area fixed to a specific location on the display screen in the form of a widget or the like. When the window area is a specific area within a web page viewed by the web browser 410, the window area may be represented as a relative position within the screen of the web browser 410, and scrolls the screen of the web browser 410. However, the absolute position of the window area on the display screen may change when a change such as a change in the position of the web browser 410 occurs.

In particular, when a part of the window area in the web page is moved to an invisible area due to scrolling of the web browser 410, the plug-in module 420 is configured to show only a part of the screen of the application 402 to be shown. Application 402 can be controlled.

In addition, the plug-in module 420 checks the state of the application 402 to determine whether the application 402 malfunctions or abnormally terminates, and when the application 402 malfunctions or abnormally terminates, 402 may be driven again to operate in a separate process. Thus, when a problem occurs in the application 402, the plug-in module 420 automatically restarts the application 402 without the user forcing the application 402 to shut down and restart a new operation. In this way, the user can be provided with the web service more conveniently.

The present invention is not limited to the way the plug-in module 420 checks the state of the application program 402, and details one embodiment of the method of checking the state in FIG.

In addition, the plug-in module 420 may recognize when the web browser 410 is terminated and terminate the application program 402. If the plug-in module 420 can recognize even when the web browser 410 is normally terminated or abnormally terminated, the web browser 410 and the application 402 may be terminated by terminating the application 402. This can be controlled to provide a single consistent service.

5 is a diagram illustrating an internal configuration of a web service providing system according to another exemplary embodiment of the present invention.

As shown in the figure, the web service providing system 501 according to an embodiment of the present invention is the driving unit 510, the interface unit 520, the relay unit 530, the position control unit 540 and the state check unit ( 550). The above components may be implemented in software, hardware, or a combination of software and hardware, and may be connected to each other. Hereinafter, the components will be described in detail.

Web service providing system 501 according to an embodiment of the present invention is plugged into a web browser 410 that provides a user with a web page received through the Internet through a display screen stored in a predetermined recording device 430 Program 402 is controlled.

The driver 510 may access the recording device 430 to drive the application program 402 in a separate process from the web browser 410 according to a request of the web browser 410. The driving unit 510 may drive the application program 402 by accessing the recording device 430 based on the address information of the application program 402 stored separately. The address information may be physical or logical address information. When configuring the plurality of applications 402 to be controlled, a plurality of address information corresponding to each of the plurality of applications 402 may be stored.

As such, since the web browser 410 and the application 402 operate in separate processes, a collision between the web browser 410 and the application 402 is prevented and an operation problem of the application 402 occurs. In this case, the web browser 410 can be used normally.

The interface unit 520 establishes a connection to exchange data with the driven application program 402. In order for the web service providing system 501 according to an embodiment of the present invention to control the application program 402, it must be able to exchange data with the application program 402. Accordingly, the interface unit 520 establishes a connection with the application program 402 to exchange data.

In this case, the connection may mean a physical connection, but may also mean a logical connection to send and receive data. The connection method may be a socket communication or a shared memory. If data can be transmitted and received, it may be connected using any method.

The relay unit 530 transmits a control message received from the web browser 410 to the driven application 402 through the interface unit 520, and transmits data received from the driven application 402 to the web browser ( 410). In order for the application 402 to operate in conjunction with the web browser 410, it must be able to exchange data with the web browser 410. However, since the application 402 operates in a separate process from the web browser 410, it is necessary to control data transmission and reception between the two.

The web service providing system 501 according to an embodiment of the present invention runs the application program 402 and establishes a connection with the application program 402, and is plugged into the web browser 410 and the web browser 410. Since data may be exchanged, data transmission and reception between the application 402 and the web browser 410 may be relayed.

Accordingly, the relay unit 530 exchanges data with the application program 402 through the interface unit 520 that establishes a connection with the application program 402, and the web browser 410 or the terminal device with the web browser 410. You can send and receive data according to the connection method provided by the OS.

Although the relay unit 530 may simply transmit the data without processing, it may be transferred after converting the data into a form that is easy to transfer if necessary.

The position controller 540 receives information on the window area from which the application program 402 is to be viewed on the display screen from the web browser 410, and the application program 402 displays the display based on the received information. Control to be displayed in the window area on the screen.

In this case, the window area may be a specific area within a web page shown in the web browser 410, or may be an area fixed to a specific location on the display screen in the form of a widget or the like. When the window area is a specific area within a web page viewed by the web browser 410, the window area may be represented as a relative position within the screen of the web browser 410, and scrolls the screen of the web browser 410. However, the absolute position of the window area on the display screen may change when a change such as a change in the position of the web browser 410 occurs.

The state checker 550 checks the state of the application 402 to determine whether the application 402 is malfunctioning or abnormally terminated. If it is confirmed that the application 402 malfunctions or is abnormally terminated, the driver 510 may drive the application 402 again to operate in a separate process. Therefore, when a problem occurs in the application program 402, the user automatically restarts the application program 402 without forcing the user to terminate the application program 402 and restarting the application program. Can be provided with a Web service.

The status checker 550 may communicate with the application 402 through the interface 520 to check the status of the application 402. The method of checking the state of the application program 402 in the state check unit 550 may exist in various ways, and the present invention is not limited thereto. 7 shows an example of a method of checking the state of the application 402.

6 is a diagram illustrating an embodiment of controlling an application to be viewed within a predetermined window area according to the present invention.

As shown in the figure, the web browser may set the specific area 610 of the screen of the web page as the window area according to the setting of the loaded web page. Data such as images and texts included in a web page or an image provided from a plug-in module plugged into a web browser can be easily disposed in a portion of the web page. However, in order to display the screen 620 provided by an application operating in a separate process from the web browser on a specific part of the web page, it is required to control the application separately.

Accordingly, the web service providing system according to an embodiment of the present invention may receive information about the window area 610 from a web browser and control the screen of the application program based on the information.

For example, the information about the window area 610 may be information indicating a position in a screen displaying a web page in a web browser using a pixel value. For example, it may be information indicating that the window area 610 is located in an area of (0,0)-(200, 200) within a web page, in which case 200 * 200 pixels in the upper left of the web page. The screen provided by the application is shown in the size of. In particular, in this case, when the web browser is moved or scrolled on the display screen, it indicates a relative position in the web page loaded in the web browser. Therefore, the absolute position of the window area 610 is changed according to the movement of the web browser. The location will also move.

As another example, the information about the window area 610 may be information indicating a position that the window area absolutely occupies on the display screen using a pixel value. For example, a display screen with a resolution of 1280 * 1024 can be controlled to display an application program in a fixed area, such as specifying (1000, 900) to (1280-1024) as the window area. Can be. In this case, a screen provided by an application program is displayed at the bottom right of the display screen, and the screen may be provided while securing a fixed position even when the web browser is moved or scrolled. The above embodiments do not limit the present invention, and the window area may be designated using other methods.

7 is a diagram illustrating an embodiment in which the web service providing system according to the present invention checks the state of an application program.

As shown in the figure, the web service providing system 401 according to an embodiment of the present invention may have a connection established to exchange data with the application program 402.

Through the connection, when the web service providing system 401 transmits a check message to the application 402 (701), in response to the check message, the application 402 can check the state whether it is operating normally. 702. As a result of the status check, if the status of the application 402 is confirmed, the application 402 may transmit the confirmed status message to the web service providing system 401 (703). The web service providing system 401 receives the status message and checks the status of the application based on the status message (704), and transmits the check message again after a predetermined period (705).

At this time, if the status message is not received from the application 402 after a predetermined time elapses after the web service providing system 401 transmits the check message, the application 402 is malfunctioning or abnormally terminated. It can be considered and processed.

Using this method, it is possible to simply check the state of the application program 402 through a connection already established, but the present invention is not limited to this specific method, and the application program 402 through various methods. You can check the status of).

8 is a flowchart illustrating a flow of a web service providing method according to an embodiment of the present invention.

8 is a diagram illustrating some necessary functions for the convenience of description of the method of providing a web service, and thus the spirit of the present invention is not limited thereto.

The web service providing method according to an embodiment of the present invention provides a web service to a user through a display screen by controlling an application program stored in a predetermined recording device in an internet terminal having a CPU and a memory.

In response to a request of a web browser, the recording apparatus is accessed to drive the application program to operate in a separate process from the web browser (S801). The application may be driven by accessing the recording apparatus based on the address information of the separately stored application program. The address information may be physical or logical address information, and when configured to control the plurality of applications, the plurality of applications may be used. A plurality of address information corresponding to each program can be stored.

As such, since the web browser and the application program operate in a separate process, a collision between the web browser and the application program can be prevented and the web browser can be normally used even when a problem occurs in the operation of the application program.

A connection is established to exchange data with the driven application program (S802). To control an application, you need to be able to send and receive data with the application. Therefore, establish a connection with the application program to send and receive data.

In this case, the connection may mean a physical connection, but may also mean a logical connection to send and receive data. The connection method may be a socket communication or a shared memory. If data can be transmitted and received, it may be connected using any method.

The control message received from the web browser is transmitted to the driven application program (S803). In addition, data received from the driven application is transmitted to the web browser (S804). In order for an application to work with a web browser, it must be able to exchange data with the web browser. However, since the application runs in a separate process from the web browser, it is necessary to control the data transmission and reception between the two.

In this case, the data may be simply transmitted without processing, but may be transferred after converting the data into a form that is easy to deliver if necessary.

The application program receives information about the window area to be viewed on the display screen from the web browser, and controls the application program to be displayed in the window area on the display screen based on the received information (S805). .

In this case, the window area may be a specific area within a web page viewed in a web browser, or may be an area fixed to a specific location on the display screen in a form of a widget or the like. When the window area is a specific area within a web page viewed in a web browser, the window area may be represented as a relative position in the web browser screen, such as scrolling the screen of the web browser or changing the position of the web browser. At the time of change, the position of the absolute window area on the display screen may change.

The state of the application is checked to determine whether the application is malfunctioning or abnormally terminated (S806). If it is determined that the application program is malfunctioning or abnormally terminated, step S801 is performed again to operate the application program in a separate process (S807). Therefore, when a problem occurs in an application program, the user can automatically restart the application program without forcing the user to terminate the application program and restarting the application program, so that the user can be provided with a web service more conveniently. .

Web service providing method according to an embodiment of the present invention is implemented in the form of program instructions that can be executed by various computer means may be recorded on a computer readable medium. The computer readable medium may include program instructions, data files, data structures, etc. alone or in combination. The program instructions recorded on the medium may be those specially designed and constructed for the present invention or may be available to those skilled in the art of computer software. Examples of computer-readable recording media include magnetic media such as hard disks, floppy disks, and magnetic tape, optical media such as CD-ROMs, DVDs, and magnetic disks, such as floppy disks. Magneto-optical media, and hardware devices specifically configured to store and execute program instructions, such as ROM, RAM, flash memory, and the like. Examples of program instructions include not only machine code generated by a compiler, but also high-level language code that can be executed by a computer using an interpreter or the like. The hardware device described above may be configured to operate as one or more software modules to perform the operations of the present invention, and vice versa.

As described above, the present invention has been described by way of limited embodiments and drawings, but the present invention is not limited to the above embodiments, and those skilled in the art to which the present invention pertains various modifications and variations from such descriptions. This is possible.

Therefore, the scope of the present invention should not be limited to the described embodiments, but should be determined by the equivalents of the claims, as well as the claims.

1 is a diagram illustrating a screen for providing a web service using a plug-in module according to the related art.

2 is a diagram illustrating a web service providing system using a plug-in module according to the related art.

3 is a diagram illustrating a web service providing system according to an exemplary embodiment of the present invention.

4 is a diagram showing the internal configuration of a web service providing system according to an embodiment of the present invention.

5 is a diagram illustrating an internal configuration of a web service providing system according to another exemplary embodiment of the present invention.

FIG. 6 is a diagram illustrating an embodiment of controlling an application program to be viewed within a predetermined window area according to the present invention.

7 is a diagram illustrating an embodiment in which the web service providing system according to the present invention checks the state of an application program.

8 is a flowchart illustrating a flow of a web service providing method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

401: web service providing system

402: application

410: web browser

420: plug-in module

430: recording device

Claims (18)

In the web service providing system applied to the Internet terminal device having a CPU and a memory, A web browser for providing a web page received through the Internet to a user through a display screen; A recording device for storing an application program operated at the request of the web browser; And Plug-in module that plugs into the web browser and controls the application / RTI &gt; The plug-in module Including address information indicating a location in which the application program is stored in the recording device; At the request of the web browser, accessing the recording device based on the address information to drive the application program to operate in a separate process from the web browser, Transmitting a control message received from the web browser to the driven application, transmitting data received from the driven application to the web browser, Receiving information on the window area to be viewed on the display screen, the application program from the web browser, and controls the application program to be displayed in the window area on the display screen based on the received information, Checking the status of the application to determine whether the application malfunctions or abnormally terminates, and if the application malfunctions or abnormally terminates, the web may be driven again to operate in a separate process. Service delivery system. delete delete The method of claim 1, The plug-in module And the application program is controlled to be displayed to the user in the changed window area when the window area is changed. delete In the web service providing system that plugs into a web browser that provides a web page received through the Internet to a user through a display screen to control an application stored in a predetermined recording device, An application program address manager which stores address information indicating a location where the application program is stored in the recording device; A driving unit for driving the application program to operate in a process separate from the web browser by accessing the recording device based on the address information at the request of the web browser; An interface unit for establishing a connection to exchange data with the driven application program; A relay unit transmitting a control message received from the web browser to the driven application program through the interface unit, and transmitting data received from the driven application program to the web browser; A position control unit for receiving, from the web browser, information about a window area to be viewed on the display screen, and controlling the application program to be displayed in the window area on the display screen based on the received information; And A state check unit that checks the state of the application to determine whether the application is malfunctioning or abnormally terminated Including, The driving unit If the application is malfunctioning or abnormally terminated, the web service providing system, characterized in that for driving the application to run again in a separate process. delete delete The method of claim 6, The position control unit And if there is a change in the window area, the application program is controlled to be displayed in the changed window area. delete The method of claim 6, The state check unit Periodically transmitting a check message to the application through the interface unit, and checking a status message received from the application in response to the check message to check the state of the application. . A web service providing method of providing a web service to a user through a display screen by controlling an application stored in a predetermined recording device in an internet terminal device having a CPU and a memory. Maintaining address information indicating a location in which the application program is stored in the recording device; At the request of a web browser, accessing the recording device based on the address information and driving the application program to operate in a process separate from the web browser; Establishing a connection to exchange data with the driven application program; Transmitting a control message received from the web browser to the driven application program; Transmitting data received from the driven application to the web browser; Receiving information about the window area to be viewed on the display screen by the application program from the web browser, and controlling the application program to be displayed in the window area on the display screen based on the received information; Checking the state of the application to determine whether the application is malfunctioning or abnormally terminated; And If the application is malfunctioning or abnormally terminated, the web service providing method comprising the step of driving the application again to run in a separate process. delete delete The method of claim 12, If there is a change in the window area, controlling the application program to be displayed in the changed window area. Web service providing method comprising a further. delete The method of claim 12, Checking whether the application malfunctions or abnormally terminates Periodically providing a check message to the application through the established connection, and checking the status of the application by checking a status message received from the application in response to the check message. Way. A computer-readable recording medium in which a program for executing the method of any one of claims 12, 15 and 17 is recorded.

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