CN101227428B - Application server and remote control method thereof - Google Patents

Abstract

The invention discloses a Daemon application server and a remote control method thereof, belonging to the field of computer remote control. The Daemon application server disclosed by the present invention includes an information receiving module, an information processing module and an information feedback module connected in sequence, wherein the information receiving module is used to concurrently receive various request messages from the client, and send them according to the receiving order or priority order Various request messages are sent to the information processing module; the information processing module is used to use the system function processing mechanism to respond to and process various request messages from the client; the information feedback module is used to return the processing result of the request message to the client. The invention realizes that the client request has nothing to do with the operating system type of the application server, and at the same time, the application server proposed by the invention has very good scalability, automatic upgrade function, service agent mechanism and easy construction.

Description

An application server and its remote control method

technical field

The invention belongs to the field of computer remote control, in particular to an application server (Daemon) and a remote control method thereof.

Background technique

Computer network technology is the product of the combination of communication technology and computer technology. A computer network is a collection of interconnected distributed and independent computers on the earth according to network protocols. Computer network technology realizes resource sharing. People can access and query any resources on the Internet in the office, at home or anywhere else, which greatly improves work efficiency and promotes the development of office automation, factory automation, and home automation. Interactive control of remote computer systems is an important and basic application of computer network technology. This application allows the operator to realize various operations on the remote computer locally by controlling the remote computer system.

We know that the communication system is composed of three parts: source, channel and sink. In a computer network, the client is the source, the network is the channel, and the server is the sink to form a computer network communication system. At present, the most popular computer network application modes are B/S and C/S. In these two modes, B and C represent the source client, and S represents the sink server. Generally, in the case of point-to-point communication, B or C first sends a request to the S terminal, and the S terminal receives the request information and processes it according to the information requirements, and then returns the processing results or resources to the client.

At present, there are too many design methods on the server side (S side) in the computer network application mode. The Daemon method is one of the methods implemented by Server. Daemon originally refers to a program that runs automatically and continuously under the computer operating system, and is used to process the periodic service requirements that the computer system hopes to receive, and submit the request to other appropriate programs (or processes). For example, web page daemon application servers are constantly waiting for requests from web clients and their users.

However, modern network communication mostly adopts a concurrent communication method, which requires the sink server to respond to and satisfy the requests of multiple clients at the same time, which puts forward higher requirements on the performance of the server. Not only that, but for the client, the server should try to make its operating system type irrelevant to the client's request. However, most of the existing computer network application modes are bound with the types of computer operating systems, and such network application modes have great limitations in practical applications. For example, the server designed by the mode designer can only run on a certain fixed operating system and cannot be applied on other operating systems, which causes the operator to be consistent with the equipment designer in the choice of operating system. As a result, the adaptability of this mode application is greatly reduced.

In addition, with the continuous increase of business requirements, the client constantly puts forward new requests, so in order to adapt to the new changes of the client, the scalability of the corresponding S-side is also very important. In this regard, the current design method also has certain defects, mainly due to the unreasonable design structure of the server, that is, it cannot adapt to new changes of the client. Specifically, when the client puts forward new requirements, the server must change the previous design framework in order to adapt to the new requirements, which causes waste of resources and greatly reduces development efficiency. In addition, in realizing resource sharing, providing a service proxy mechanism to expand the service function of the server should also be the basic performance of the server.

Contents of the invention

The technical problem to be solved by the present invention is to provide a resident Daemon application server and its remote control method, so that in the computer remote control process, the client request is independent of the application server operating system type.

In order to solve the above problems, the present invention discloses a resident Daemon application server, which is suitable for computer remote control process. The server includes an information receiving module, an information processing module and an information feedback module connected in sequence, wherein,

The information receiving module is used to concurrently receive various request messages from the client, establish a message queue, and send various request messages to the information processing module according to the receiving order or priority order;

The information processing module is used to use the system function processing mechanism to respond to and process various request messages from the client;

The information feedback module is used to convert and assemble the request message processing result into an internal message format agreed between the client and the Daemon application server and return it to the client.

Further, in the above server, the information processing module further includes a message parsing unit and several message processing units connected to it for processing different messages, wherein

The message parsing unit is configured to parse various request messages sent by the client, and send different request messages to corresponding message processing units according to the parsing results;

The message processing unit uses a system function processing mechanism to operate according to the content of the received message, and sends the message processing result to the information feedback module.

The above message processing unit includes a message processing unit for implementing proxy service, for establishing communication with the remote resource server after receiving the proxy service request message, receiving the remote resource returned by the remote resource server, and returning it by the information feedback module For clients requesting proxy services.

The above-mentioned message processing unit includes a message processing unit for implementing an upgrade, which is used for upgrading after receiving the upgrade request message or automatically starting the upgrade regularly, stopping all service processes started by the Daemon application server, and installing a new version of the Daemon application server.

After the above-mentioned upgrade operation is completed, the message processing unit for implementing the upgrade updates the version number in the version configuration file and starts the port to listen. When the client connects to the Daemon application server in turn and detects that the service port is opened , establish a TCP link with the Daemon application server, and the information feedback module sends a message that the upgrade is successful to the client.

Further, in the above server, the message processing result sent by the information feedback module includes message number, result judgment and result content.

The present invention also discloses a remote control method of a resident Daemon application server, comprising the following steps:

A: The information receiving module of the resident Daemon application server receives the request message from the client, establishes a message queue, and sends various request messages to the information processing module according to the order of reception or priority order;

B: After the information processing module of the Daemon application server receives the request message forwarded by the information receiving module, it uses the system function processing mechanism to respond and process the request message of the client;

C: After the information feedback module of the Daemon application server receives the message processing result of the client request from the information processing module, it converts and assembles the result into an internal message format agreed between the client and the Daemon application server and sends it to the client.

Further, in the above method, the step B further includes the following steps:

B1, the message parsing unit of the information processing module parses the received request message, and sends different request messages to the corresponding message processing unit according to the parsing result;

B2, the message processing unit uses a system function processing mechanism to perform system operations on the remote computer system according to the content of the received request message, and sends the message processing result to the information feedback module.

In the above step B2, if the content of the request message is requesting proxy service, the message processing unit establishes communication with the remote resource server, receives the remote resource returned by the remote resource server, and returns it to the requesting proxy by the information feedback module The client of the service.

In the above step B2, if the content of the request message is to request the resident server to upgrade or the message processing unit automatically starts the upgrade at regular intervals, the message processing unit first stops all service processes started by the Daemon application server, and backs up the old version of the resident server, install the new version of the Daemon application server.

Further, in the above method, the message processing result sent by the information feedback module to the client includes message number, result judgment and result content.

Further, in the above method, after the upgrade operation is completed, the message processing unit for implementing the upgrade updates the version number in the version configuration file and starts the port to listen. When the client connects to the Daemon application server in rounds, and detects When the service port is opened, a TCP link is established with the Daemon application server, and the information feedback module sends a message that the upgrade is successful to the client.

The technical scheme adopted by the present invention is based on concurrent B/S and C/S mode network communication, realizes the independence of the client request and the operating system type of the application server, and discloses the interaction process between the mobile terminal user and the application server , and the application server proposed by the present invention has very good scalability, automatic upgrade function, service agent mechanism and easy construction.

Description of drawings

Fig. 1 is the structural representation of Daemon application server in the present embodiment;

Fig. 2 (a) realizes the remote control flowchart of Daemon application server when the client sends general request information for the present embodiment;

Fig. 2 (b) realizes the remote control flowchart of Daemon application server when the client sends proxy service request information for the present embodiment;

FIG. 3 is a flowchart of the automatic upgrade of the Daemon application server in this embodiment.

Detailed ways

The main idea of the present invention is, a kind of Daemon application server provides the service to client by the mode of resident, and client is connected with Daemon application server by Transmission Control Protocol (TCP, Transfer Control Protocol) link, by sending request information, Then the communication is realized by receiving the response from the Daemon application server.

Below in conjunction with accompanying drawing and specific embodiment, the technical scheme of the present invention is described in further detail:

As shown in Figure 1, it is the structure of the Daemon application server. The application server includes: an information receiving module (ReceiveData), an information processing module (ExeclData) and an information feedback module (ReplyData) connected in sequence. Multiple message processing units are set in the information processing module.

The information receiving module is used to concurrently receive various request information from the client, and use the message queue mechanism to queue up the received independent requests from different clients to generate different message queues corresponding to different clients, and then send These message queues are sequentially sent to the information processing module;

The information processing module is used to respond to and process various requests from clients;

The information processing module further includes a message parsing unit and several message processing units connected to it, wherein:

A message parsing unit for parsing various request messages sent by the client, and sending different request messages to different message processing units according to the parsing results;

The message processing unit performs system operations on the remote computer system according to the content of the received message, and sends the message processing result to the information feedback module. Communication with the server, and return the obtained remote resources to the client requesting the proxy service; when the content of the request message is to request the upgrade of the Daemon application server, the message processing unit first stops all service processes started by the Daemon application server, and backs up the old version of the Daemon application server, and then start the Daemon application server upgrade process.

The above-mentioned message processing unit is a relatively independent minimum processing unit related to the message type. It adopts a system function processing mechanism according to the existing technology, so that the system operation can be performed according to the message content to complete the server-side local processing that cannot be realized by the remote user. Operational function, in the present embodiment, the form parameter of the system function that this message processing unit adopts is the system order that any system that user inputs when operating system command line all can recognize, and this function itself has nothing to do with the operating system of Daemon application server , that is, this function can be called under different operating systems, so it is applicable to different operating systems, such as Windows and Linux systems.

The information feedback module is used for message buffering, message conversion, message feedback, etc., so that the request information processing results are converted into messages and assembled into an internal message format (the message format agreed between the client and the Daemon application server), and then through the TCP link Send it to the corresponding client, where the message processing result includes message number, result judgment and result content, etc.

The above-mentioned concurrent Daemon application server is suitable for the process of users accessing the remote Daemon application server through a browser or other client software. According to the request of the client, the process of performing system operations on the remote computer system is shown in FIG. 2 .

Among them, the process of the client sending general request information to the Daemon application server is shown in Figure 2(a). First, the Daemon application server is automatically started with the system as the application service of the system, and resides in the system to listen to the service port. In order to obtain the service of the Daemon application server, the client must first establish a TCP link with the Daemon application server through the service port, and the client initiates the establishment of the link (step 201a). After the Daemon application server detects the connected client, it begins to establish the link. way (steps 202a, 203a). In this embodiment, the connection between the client and the application server is a short connection, that is, after a complete communication ends, the link will be released. Of course, according to different needs, the TCP connection here can also be Long connection, such as in the application of billing business.

After the TCP link is set up, the client just can send request message (step 204a) to Daemon application server through this link, after the information receiving module of Daemon application server receives request message, builds message queue (step 205a), requests in order The message is sent to the information processing module (step 206a). In other embodiments, the information receiving module can also send the request message with higher priority to the information processing module according to the priority of the message; the Daemon application server passes the information processing module The middle message analysis unit analyzes the message sent by the client (step 207a), and sends the analysis result to the corresponding message processing unit; the message processing unit performs system operations on the remote client according to the content of the message, that is, performs message processing (step 208a ), and send the message processing result to the information feedback module (step 209a), the information feedback module converts and assembles the processing result into an internal message format (step 210a), and then sends it to the corresponding client (step 211a), and the client receives After the result is returned, the TCP link is released (step 212a).

When the proxy service required by the client is not supported by the Daemon application server, the Daemon application server can forward the client's request to other remote resource servers with corresponding functions, and the remote resource server will process and return the result to the client through the Daemon application server . The process that the client sends the proxy service request information to the Daemon application server is as shown in Figure 2 (b), and its steps 201b to 207b are the same as steps 201a to 207a. In this embodiment, the message analysis unit sends the parsed proxy service request message to the implementation The message processing unit (step 208b) of proxy service, after the message processing unit that realizes proxy service receives this request message, initiates TCP connection (step 209b) to remote resource server, after remote resource server and Daemon application server establish TCP link ( Step 210b), the message processing unit that realizes proxy service sends proxy service message (step 211b) to remote resource server, then remote resource server returns the resource involved in this proxy service to Daemon application server (step 212b), realizes the message of proxy service The processing unit sends the resource returned by the remote resource server to the information feedback module (step 213b). After the information feedback module receives the processing result, it converts and assembles it into an internal message format (step 214b), and sends it to the corresponding client (step 214b). 215b), the client releases the TCP link after receiving the returned result (step 216b).

With the continuous increase of business requirements, the types of client request messages also increase, and the corresponding application servers must continue to meet the new request message types of clients. important indicators. In this embodiment, the Daemon application server adopts a layered organizational structure mode, and the design mode of the message processing unit is flexible, which can be subordinate to the core module of the Daemon application server to provide external services, or can be based on the request of the client in the form of a dynamic link library. The dynamic loading, as shown in Figure 3, is the automatic upgrade process of the Daemon application server.

The client initiates the establishment of the link (step 301), and the Daemon application server starts to establish the link after detecting the connected client (steps 302, 303). The client sends a Daemon application server upgrade request message to the Daemon application server (step 304). After receiving the message, the information receiving module performs message queuing, and then sequentially sends these message queues to the information processing module (step 305). The message parsing unit of the information processing module parses the message (step 306), and then the message is sent to the message processing unit realizing upgrade processing. After the message processing unit receives the message, it first stops all services started by the Daemon application server Process and back up the old version of the Daemon application server (step 307), then start the Daemon application server upgrade process (step 308).

After the Daemon application server upgrade process starts, at first can stop the Daemon application server process, this moment, the TCP connection between the client and the Daemon application server can be released (step 309), install the Daemon application server (step 310) of new version If the Daemon application server of new version is successfully installed, then the Daemon application server upgrade process will start a new Daemon application server to provide external services, otherwise the Daemon application server upgrade process will restore the old version Daemon application server of backup and start it (step 311).

After the above upgrade operation is completed, the Daemon application server will update the version number in the version configuration file and start the port to listen. At this time, the client will connect to the Daemon application server in turn until it detects that the service port is opened, and communicate with the Daemon application server. The application server establishes a TCP link, and then the Daemon application server of the new version will send a message that the upgrade is successful to the client.

Of course, there is also a situation where the Daemon application server upgrade fails. At this time, the Daemon application server upgrade process will automatically restore the original Daemon application server version, that is, the upgrade will not be performed, and the user will be prompted that the upgrade failed.

If multiple different clients request the server to upgrade, the message processing unit that receives the upgrade command first compares the latest installed version number in the installed server with the version number of the current server, if the current server version number is the latest installed version number, It will prompt the user that the current version is the latest, that is, there is no need to upgrade.

In another embodiment, the Daemon application server itself can also actively initiate an upgrade request. At this time, a timer is set in the Daemon application server. When the timer setting time expires, it detects whether there is a new version, and if so, sends an upgrade request. The prompt information is sent to the client, and the user can choose whether to upgrade the application server currently residing in the Daemon. Wherein, the process of the upgrading operation is the same as the above step 305 to step 311.

As can be seen from the foregoing embodiments, the technical solution adopted in the present invention can not only realize concurrent B/S and C/S mode network communication, but also can realize the independence of the client request from the operating system type of the application server. The proposed application server has very good scalability, automatic upgrade function and service proxy mechanism.

The above is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, any changes and substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims (12)

1. a Daemon application server is applicable to the computer remote control procedure, it is characterized in that, this server comprises information receiving module, message processing module and the information feedback module that connects successively, wherein,

Described information receiving module is used for also hairdo reception and sets up message queue from the various request messages of client, according to reception order or priority orders various request messages is sent to message processing module;

Described message processing module is used to utilize the system function treatment mechanism to respond and handle the various request messages of client, and the Message Processing result is sent to the information feedback module;

Described information feedback module is used for the request message result transformed and be assembled into the inside story form that client and Daemon application server arranged and returns to client.

2. server as claimed in claim 1 is characterized in that, described message processing module further comprises message parse unit and coupled some message processing units that are used to handle different messages, wherein

Described message parse unit is used to resolve the various request messages that client sends, and according to analysis result different request messages is sent to corresponding message processing unit;

Described message processing unit adopts the system function treatment mechanism, operates according to the message content of receiving, and the Message Processing result is sent to the information feedback module.

3. server as claimed in claim 2 is characterized in that,

Described message processing unit comprises the message processing unit that is used to realize agency service, be used for after receiving proxy service request message, foundation is communicated by letter with the remote resource server, the remote resource that the receiving remote Resource Server returns returns to the client that request broker is served by described information feedback module.

4. server as claimed in claim 2 is characterized in that,

Described message processing unit comprises and is used to realize the message processing unit of upgrading, be used for after receiving upgrade request message, upgrading or timing automatic startup upgrading, stop the service processes that all are started by the Daemon application server, redaction Daemon application server is installed.

5. server as claimed in claim 4 is characterized in that,

After updating operation is finished, described version number and its enable port that is used for realizing that the message processing unit of upgrading upgrades edition configuration file intercepted, when the connection Daemon of client repeating query application server, and when detecting serve port and being opened, set up the TCP link with described Daemon application server, described information feedback module sends the successful message of upgrading to client.

6. server as claimed in claim 1 is characterized in that,

The Message Processing result that described information feedback module sends comprises that message numbering, result judge and resultant content.

7. the long-range control method of a Daemon application server is characterized in that, may further comprise the steps:

A: the information receiving module of described Daemon application server receives the request message from client, sets up message queue, according to reception order or priority orders various request messages is sent to message processing module;

B: after the message processing module of described Daemon application server is received the request message of described information receiving module forwarding, utilize the request message of response of system function treatment mechanism and processing client;

C: after the information feedback module of described Daemon application server is received the client request message result from message processing module, this result is transformed and be assembled into the inside story form that client and Daemon application server arranged send to client.

8. method as claimed in claim 7 is characterized in that, described step B further may further comprise the steps:

B1, resolve the described request message of receiving the message parse unit of described message processing module, and according to analysis result different request messages is sent to corresponding message processing unit;

B2, described message processing unit adopts the system function treatment mechanism, according to the content of the request message of receiving remote computer system is carried out system operation, and the Message Processing result is sent to the information feedback module.

9. method as claimed in claim 8 is characterized in that,

Among the described step B2, if the content of described request message is the request broker service, then described message processing unit foundation is communicated by letter with the remote resource server, and the remote resource that the receiving remote Resource Server returns returns to the client that request broker is served by described information feedback module.

10. method as claimed in claim 8 is characterized in that,

Among the described step B2, if the content of described request message is when asking the Daemon server updating or described message processing unit timing automatic starts upgrading, described message processing unit at first stops all service processes that started by the Daemon application server, and the Daemon server of backup legacy version, redaction Daemon application server is installed.

11. method as claimed in claim 7 is characterized in that,

The Message Processing result that described information feedback module sends to client comprises that message numbering, result judge and resultant content.

12. method as claimed in claim 10 is characterized in that,

After updating operation is finished, be used for realizing that version number and its enable port that the message processing unit of upgrading upgrades edition configuration file intercept, when the connection Daemon of client repeating query application server, and when detecting serve port and being opened, set up the TCP link with described Daemon application server, described information feedback module sends the successful message of upgrading to client.

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