WO2021203343A1

WO2021203343A1 - Web request processing method and apparatus

Info

Publication number: WO2021203343A1
Application number: PCT/CN2020/083875
Authority: WO
Inventors: 焦旭
Original assignee: 北京微动数联科技有限公司
Priority date: 2020-04-09
Filing date: 2020-04-09
Publication date: 2021-10-14
Also published as: TWI815098B; CN111937366A; CN111937366B; TW202139767A

Abstract

The present invention relates to the technical field of computers, and specifically provides a web request processing method, which is applied to a WiFi chip that can be configured with WiFi parameters. The method comprises: receiving a web request, and establishing a connection for the web request; remotely calling an LUA script, and selecting a processing function corresponding to the web request for processing; and returning processing result data. Further correspondingly provided are an apparatus, a device and a medium. According to the web request processing method in the present invention, the functions of a web server can be realized on the basis of a WiFi chip, and a web server architecture is constructed.

Description

Web request processing method and device

Technical field

The present invention relates to the field of computer technology, in particular, to a method for processing a Web (network) request, a device for processing a Web request, an electronic device, and a computer storage medium.

Background technique

Prior art Wi-Fi chips are often used as Wi-Fi adapters. For example, the ESP8266 chip developed by Espressif Systems provides a set of highly integrated Wi-Fi chip solutions with low power consumption, compact design and high Stability and other characteristics. Only through SPI (Serial Peripheral Interface)/SDIO (Secure Digital Input Output) interface or UART (Universal Asynchronous Receiver Transmitter) interface can be used as a Wi-Fi adapter and applied to designs based on various microcontrollers. The detailed function description can be found on its official website https://www.espressif.com/zh-hans/products/hardware/esp8266ex/overview.

Due to the relatively low price of ESP8266, it has now been used in a variety of IoT systems. However, due to its nature as a Wi-Fi chip and limited performance, the software currently provided is limited to the functions of Wi-Fi configuration and cannot provide richer functions. If you want to provide richer Web services, you need to upgrade the hardware configuration to run the Web server, which will lead to a substantial increase in the cost of the entire system.

However, if you want to implement server functions based on Wi-Fi chips such as ESP8266, you will face several problems: first, the chip does not provide direct server software or related necessary functions, and the functions are incomplete; second, due to the Wi-Fi chip itself Due to hardware limitations, the amount of processed data access will appear to be insufficient in memory when implementing server functions.

Summary of the invention

In order to solve the problem of limited functions of Wi-Fi chips with configurable parameters in the prior art, the present invention proposes a technology for building Web server functions using Wi-Fi chips. Specifically, in the first aspect, a Web server is provided. The request processing method is applied to a Wi-Fi chip with configurable Wi-Fi parameters, and the method includes:

Receiving a web request, and establishing a connection for the web request;

Remotely call the LUA script and select the processing function corresponding to the Web request for processing;

Return processing result data.

Further, the step of remotely invoking the LUA script and selecting a processing function corresponding to the Web request for processing includes:

Trigger the receive event;

Parse the request data and get the LUA file name;

Load the file to get the LUA function;

Execute LUA function;

The sent event is triggered, and the result obtained by executing the LUA function is sent.

Further, the step of loading the file to obtain the LUA function includes:

The LUA function is obtained by loading a file in a dofile manner.

Further, the step of selecting a processing function corresponding to the Web request for processing includes:

Creating a collaborative program corresponding to the Web request;

Specify a processing function for the cooperative program; and

Use the processing function for processing.

Further, the step of using the processing function to perform processing includes:

S121: wake up the cooperative program, execute the processing function to get the return data;

S1221: Perform data slicing in response to the need to slice the returned data;

S1222: In response to acquiring the threshold number of slices, suspend the cooperative program, and send the threshold number of slices;

S1223: In response to the data not being sent, steps S121 to S1222 are cyclically executed.

Further, the step of using the processing function to perform processing further includes:

In response to the returned data, no slicing is required, and the data is sent directly.

Further, the step of using the processing function for processing further includes: closing the connection when it is determined that the cooperative program is in a suspended state after the data is sent.

In the second aspect, an embodiment of the present invention provides a Web request processing device, which is applied to a Wi-Fi chip capable of configuring Wi-Fi parameters, and the device includes:

The connection establishment module is configured to establish a connection for the Web request based on the received Web request;

The data processing module is configured to remotely call the LUA script and select the processing function corresponding to the Web request for processing;

The sending module is configured to return processing result data.

In the third aspect, an embodiment of the present invention provides an electronic device, including:

One or more processors;

Storage device for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors implement the foregoing method.

In a fourth aspect, an embodiment of the present invention provides a computer-readable medium having a computer program stored thereon, and is characterized in that the above-mentioned method is implemented when the program is executed by a processor.

The method, device, equipment and medium in the embodiments of the present invention realize the use of a Wi-Fi chip with limited storage and processing resources and configurable parameters to build a Web server, and realize more abundant functions on the Wi-Fi chip.

Description of the drawings

The features and advantages of the present invention will be more clearly understood by referring to the accompanying drawings. The accompanying drawings are schematic and should not be construed as limiting the present invention in any way. In the accompanying drawings:

FIG. 1 is a schematic flowchart of a method for processing a Web request in some embodiments of the present invention;

2 is a schematic diagram of a Wi-Fi chip configuration process flow diagram in some embodiments of the present invention;

FIG. 3 is a schematic diagram of a process of processing a request using a cooperative program in some embodiments of the present invention;

4 is a schematic diagram of a flow chart of data processing on a Web request in some embodiments of the present invention;

FIG. 5 is a schematic diagram of a process of implementing remote invocation of LUA scripts in some embodiments of the present invention;

Figure 6 is a schematic structural diagram of a Web request processing apparatus in some embodiments of the present invention;

FIG. 7 is a schematic diagram of the structure of an electronic device in some embodiments of the present invention.

Detailed ways

In order to be able to understand the above objectives, features and advantages of the present invention more clearly, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that the embodiments of the application and the features in the embodiments can be combined with each other if there is no conflict.

In the following description, many specific details are set forth in order to fully understand the present invention. However, the present invention can also be implemented in other ways different from those described here. Therefore, the protection scope of the present invention is not limited to the specific details disclosed below. Limitations of the embodiment.

As shown in FIG. 1, an embodiment of the present invention provides a method for processing a Web request, which is applied to a Wi-Fi chip with configurable Wi-Fi parameters, and the method includes:

S110. Receive a Web request, and establish a connection for the Web request; the Wi-Fi chip in the embodiment of the present invention, such as the ESP8266 chip, is divided into two operating modes, namely a configuration mode and a working mode, and the two modes are performed by a switch Switch. The device must enter the configuration mode when it is used for the first time. The operation method is to set the switch to the on state. The execution logic of the configuration mode is to initialize the Wi-Fi module of the device, set it to AP mode, and then turn on the WEB service, which can process HTTP requests. The client connects to the WI-FI network of the device and accesses the Web service through a browser. The web server listens to the http request and processes it, and returns the processed result to the client. The configuration mode supports the configuration of Wi-Fi information and cloud server information. After the configuration is complete, set the switch to off, and restart the device to enter the working mode. In the working mode, the device first connects to Wi-Fi, then performs time calibration on the device, and then connects to the cloud server. After the above tasks are completed, the device starts to transmit data. The workflow is shown in Figure 2.

S120. Remotely call the LUA script to select the processing function corresponding to the Web request for processing; analyze the Web request to obtain the corresponding processing function for data processing, such as data query, data calculation, data packaging, etc., to form a processing result .

S130: Return the processing result data; after the processing result is obtained, data is packaged and sent according to the adopted data protocol, for example, the HTTP protocol is used for sending.

In the embodiment of the present invention, a Wi-Fi chip is used to build the server function. Due to the limited new capabilities of the Wi-Fi chip, there is no mature Web service framework. In order to meet the requirement of providing Web services, a set of Web service framework is implemented based on the LUA basic library. LUA is a lightweight and compact scripting language. The Wi-Fi chip can carry such scripting language functions for operation, and realize server functions by remotely calling LUA scripts.

The key technologies of the Web server include creating a TCP server (Transmission Control Protocol Server), capturing http (Hypertext Transfer Protocol) requests and establishing a connection, parsing and processing the requested data, returning the result to the client in the form of http, and closing the connection. This embodiment mainly implements the analysis and processing of http request data. According to the selection, the features are as follows:

1) Support a variety of request methods, including get (get), post (post), put (place), etc., and analyze according to different web request methods.

2) Support http access authentication;

3) Realize remote calling of LUA scripts in http mode;

4) Support multiple request codes;

5) It can correctly handle scenarios where a single request returns a large amount of data.

In the embodiment of the present invention, the steps of remotely calling the LUA script and selecting the processing function corresponding to the Web request for processing include:

The receive event is triggered, the request data is parsed, the LUA file name is obtained, the file is loaded to obtain the LUA function, the LUA function is executed, the sent event is triggered, and the result obtained by executing the LUA function is sent.

In the embodiment of the present invention, the step of loading the file to obtain the LUA function includes:

Use dofile to load files to obtain the LUA function

In order to realize the scenario of processing a large amount of data on the Wi-Fi chip with limited performance, the method of processing Web requests in the implementation of the present invention adopts a cooperative program to process, which can reduce the requirements on the performance of the device without causing data transmission. mistake. Specifically, the step of selecting a processing function corresponding to the Web request for processing includes: creating a cooperative program corresponding to the Web request; specifying a processing function for the cooperative program; and processing using the processing function. Further, as shown in FIG. 3, the step of using the processing function to perform processing includes:

S1231, wake up the cooperative program, execute the processing function to get the return data;

S1232, perform data slicing in response to the need to slice the returned data;

S1233, in response to acquiring the threshold number of slices, suspend the cooperative program, and send the threshold number of slices;

In S1234, in response to the data transmission is not completed, step S1231 to step S1233 are cyclically executed.

In the embodiment of the present invention, the return data is obtained by executing the processing function of the cooperative program. When the amount of data is large, the data is sliced correspondingly, and then sent. When sending, the cooperative program is suspended to reduce the performance requirements of the chip, and the data is sent cyclically until the data is sent. Sent. The aforementioned cooperative program and data transmission can be performed in a similar parallel manner. For example, the cooperative program is suspended when sending data, and the cooperative program is awakened to continue execution after the data of the slice is sent, and the returned data is obtained, and then the slice is adaptively selected and suspended. Start the collaborative program and send the data. The use of a collaborative program ensures that multiple processing requests can be executed, avoiding the situation that other requests are not processed due to a single request for obtaining more data. In order to reduce the requirements on the performance of the chip, in the embodiment of the present invention, one slice may be acquired and sent immediately.

In the embodiment of the present invention, when the amount of returned data acquired is small, or when there is no other collaborative program to run, it can be sent directly. Specifically, the processing step of the processing function further includes:

S1235. In response to returning the data without slicing, directly send the data.

As shown in Figure 4, in the embodiment of the present invention, a cooperative program is used to solve the problem of insufficient device memory and ensure support for larger data access scenarios. The user sends a Web request, establishes a connection for the request, parses the requested data, and selects the corresponding The processing function processes the request, returns the processing result data and closes the connection. The data processing process uses a collaborative program to create a collaborative program and specify a processing function for each request. The processing flow is: first wake up the collaborative program, execute the processing function to get the return data; then, the return data is sliced in order, and each slice is obtained Send, suspend the cooperative program before sending, wake up after sending and continue the slicing operation until the data is sent; finally close the connection to complete a request process. The cooperative program ensures that the returned data of the same request can be sent continuously and correctly.

Further, the step of using the processing function for processing further includes: S1236. After the data is sent, when it is determined that the cooperative program is in a suspended state, the connection is closed. Clear the occupation of resources in time.

As shown in Figure 5, the embodiment of the present invention can remotely call the LUA script through the http method. After the request arrives, the receive callback function is triggered. The function parses the request data, obtains the LUA file name, and then loads the file in the dofile mode. The processing function defined by the script is obtained, and the requested parameters are passed to the function to complete the data processing work. This method requires the LUA script to follow the format definition: return function(connection,req,args).

The embodiment of the present invention provides a processing method for Web requests based on a Wi-Fi chip with configurable parameters. It can process large data requests based on limited memory resources, and can also realize remote calling of LUA scripts.

As shown in FIG. 6, an embodiment of the present invention also provides a Web request processing apparatus 200, which is applied to a Wi-Fi chip capable of configuring Wi-Fi parameters, and the apparatus 200 includes:

The connection establishment module 210 is configured to establish a connection for the Web request based on the received Web request;

The data processing module 220 is configured to remotely call the LUA script and select the processing function corresponding to the Web request for processing;

The sending module 230 is configured to return processing result data.

Further, the data processing module 220 is configured to:

Further, the data processing module 220 uses a dofile method to load a file to obtain the LUA function. Further, the data processing module 220 is further configured to create a coordinated program corresponding to the Web request; specify a processing function for the coordinated program; use the processing function to perform processing.

Further, the data processing module 202 is also configured to wake up the cooperative program and execute the processing function to obtain the return data; in response to the return data needs to be sliced, perform data slicing; in response to obtaining a threshold number of slices, send it, and suspend all data. The collaborative program is described, and the threshold number of slices is sent; in response to the data not being sent, the steps of wake-up and slice sending are repeated until the sending is completed; when the returned data does not need to be sliced, the data is sent directly; after the data is sent, it is judged When the cooperative program is in a suspended state, the connection is closed.

The detailed details of the steps performed by the above modules have been described in the above method embodiments, and will not be repeated here.

It should be noted that although several modules or units of the device for action execution are mentioned in the above detailed description, this division is not mandatory. In fact, according to the embodiments of the present invention, the features and functions of two or more modules or units described above may be embodied in one module or unit. Conversely, the features and functions of a module or unit described above can be further divided into multiple modules or units to be embodied.

In addition, although the various steps of the method of the present invention are described in a specific order in the drawings, this does not require or imply that these steps must be performed in the specific order, or that all the steps shown must be performed to achieve the desired result. Additionally or alternatively, some steps may be omitted, multiple steps may be combined into one step for execution, and/or one step may be decomposed into multiple steps for execution, etc.

In an exemplary embodiment of the present invention, an electronic device capable of implementing the above method is also provided.

Those skilled in the art can understand that various aspects of the present invention can be implemented as a system, a method, or a program product. Therefore, various aspects of the present invention can be specifically implemented in the following forms, namely: complete hardware implementation, complete software implementation (including firmware, microcode, etc.), or a combination of hardware and software implementations, which can be collectively referred to herein as "Circuit", "Module" or "System".

The electronic device 1100 according to this embodiment of the present invention will be described below with reference to FIG. 7. The electronic device 1100 shown in FIG. 7 is only an example, and should not bring any limitation to the function and application scope of the embodiment of the present invention.

As shown in FIG. 7, the electronic device 1100 is represented in the form of a general-purpose computing device. The components of the electronic device 1100 may include, but are not limited to: the aforementioned at least one processing unit 1110, the aforementioned at least one storage unit 1120, and a bus 1130 connecting different system components (including the storage unit 1120 and the processing unit 1110).

Wherein, the storage unit stores program code, and the program code can be executed by the processing unit 1110, so that the processing unit 1110 executes the various exemplary methods described in the “Exemplary Methods” section of this specification. Steps of implementation. For example, the processing unit 1110 may execute S110 as shown in FIG. 1 to receive a Web request and establish a connection for the Web request; S120 remotely invoke the LUA script, and select the processing function corresponding to the Web request for processing; S130 returns Process the result data.

The storage unit 1120 may include a readable medium in the form of a volatile storage unit, such as a random access storage unit (RAM) 11201 and/or a cache storage unit 11202, and may further include a read-only storage unit (ROM) 11203.

The storage unit 1120 may also include a program/utility tool 11204 having a set of (at least one) program module 11205. Such program module 11205 includes but is not limited to: an operating system, one or more application programs, other program modules, and program data, Each of these examples or some combination may include the implementation of a network environment.

The bus 1130 may represent one or more of several types of bus structures, including a storage unit bus or a storage unit controller, a peripheral bus, a graphics acceleration port, a processing unit, or a local area using any bus structure among multiple bus structures. bus.

The electronic device 1100 may also communicate with one or more external devices 1200 (such as keyboards, pointing devices, Bluetooth devices, etc.), and may also communicate with one or more devices that enable a user to interact with the electronic device 1100, and/or communicate with Any device (such as a router, modem, etc.) that enables the electronic device 1100 to communicate with one or more other computing devices. This communication can be performed through an input/output (I/O) interface 1150. In addition, the electronic device 1100 may also communicate with one or more networks (for example, a local area network (LAN), a wide area network (WAN), and/or a public network, such as the Internet) through the network adapter 1160. As shown in the figure, the network adapter 1160 communicates with other modules of the electronic device 1100 through the bus 1130. It should be understood that although not shown in the figure, other hardware and/or software modules can be used in conjunction with the electronic device 1100, including but not limited to: microcode, device drivers, redundant processing units, external disk drive arrays, RAID systems, tape drives And data backup storage system, etc.

Through the description of the above embodiments, those skilled in the art can easily understand that the example embodiments described here can be implemented by software, or can be implemented by combining software with necessary hardware. Therefore, the technical solution according to the embodiments of the present invention can be embodied in the form of a software product, which can be stored in a non-volatile storage medium (which can be a CD-ROM, U disk, mobile hard disk, etc.) or on the network , Including several instructions to make a computing device (which can be a personal computer, a server, a terminal device, or a network device, etc.) execute the method according to the embodiment of the present invention.

In an exemplary embodiment of the present invention, there is also provided a computer-readable storage medium on which is stored a program product capable of implementing the above-mentioned method in this specification. In some possible implementation manners, various aspects of the present invention may also be implemented in the form of a program product, which includes program code. When the program product runs on a terminal device, the program code is used to make the The terminal device executes the steps according to various exemplary embodiments of the present invention described in the above-mentioned "Exemplary Method" section of this specification.

The program product for implementing the above method according to the embodiment of the present invention may adopt a portable compact disk read-only memory (CD-ROM) and include program code, and may run on a terminal device, such as a personal computer. However, the program product of the present invention is not limited to this. In this document, the readable storage medium can be any tangible medium that contains or stores a program, and the program can be used by or combined with an instruction execution system, device, or device.

The program product can use any combination of one or more readable media. The readable medium may be a readable signal medium or a readable storage medium. The readable storage medium may be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device, or device, or a combination of any of the above. More specific examples (non-exhaustive list) of readable storage media include: electrical connections with one or more wires, portable disks, hard disks, random access memory (RAM), read-only memory (ROM), erasable Type programmable read only memory (EPROM or flash memory), optical fiber, portable compact disk read only memory (CD-ROM), optical storage device, magnetic storage device, or any suitable combination of the above.

The computer-readable signal medium may include a data signal propagated in baseband or as a part of a carrier wave, and readable program code is carried therein. This propagated data signal can take many forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the foregoing. The readable signal medium may also be any readable medium other than a readable storage medium, and the readable medium may send, propagate, or transmit a program for use by or in combination with the instruction execution system, apparatus, or device.

The program code contained on the readable medium can be transmitted by any suitable medium, including but not limited to wireless, wired, optical cable, RF, etc., or any suitable combination of the foregoing.

The program code used to perform the operations of the present invention can be written in any combination of one or more programming languages. The programming languages include object-oriented programming languages—such as Java, C++, etc., as well as conventional procedural styles. Programming language-such as "C" language or similar programming language. The program code can be executed entirely on the user's computing device, partly on the user's device, executed as an independent software package, partly on the user's computing device and partly executed on the remote computing device, or entirely on the remote computing device or server Executed on. In the case of a remote computing device, the remote computing device can be connected to a user computing device through any kind of network, including a local area network (LAN) or a wide area network (WAN), or it can be connected to an external computing device (for example, using Internet service providers). Business to connect via the Internet).

In addition, the above-mentioned drawings are merely schematic illustrations of the processing included in the method according to the exemplary embodiment of the present invention, and are not intended for limitation. It is easy to understand that the processing shown in the above drawings does not indicate or limit the time sequence of these processings. In addition, it is easy to understand that these processes can be executed synchronously or asynchronously in multiple modules, for example.

Those skilled in the art will easily think of other embodiments of the present invention after considering the description and practicing the invention herein. This application is intended to cover any variations, uses, or adaptive changes of the present invention. These variations, uses, or adaptive changes follow the general principles of the present invention and include common knowledge or customary technical means in the technical field where the present invention is not invented. . The description and embodiments are only regarded as exemplary, and the true scope and spirit of the present invention are pointed out by the claims.

Claims

A Web request processing method, characterized in that it is applied to a Wi-Fi chip capable of configuring Wi-Fi parameters, and the method includes:

Receiving a web request, and establishing a connection for the web request;

Remotely call the LUA script and select the processing function corresponding to the Web request for processing;

Return processing result data.
The method according to claim 1, wherein the step of remotely invoking an LUA script and selecting a processing function corresponding to the Web request for processing comprises:

Trigger the receive event;

Parse the request data and get the LUA file name;

Load the file to get the LUA function;

Execute LUA function;

The sent event is triggered, and the result obtained by executing the LUA function is sent.
The method according to claim 2, wherein the step of loading the file to obtain the LUA function comprises:

The LUA function is obtained by loading a file in a dofile manner.
The method according to claim 1 or 2, wherein the step of selecting a processing function corresponding to the Web request for processing comprises:

Creating a collaborative program corresponding to the Web request;

Specify a processing function for the cooperative program; and

Use the processing function for processing.
The method according to claim 4, wherein the step of using the processing function to perform processing comprises:

S1231, wake up the cooperative program, execute the processing function to get the return data;

S1232, perform data slicing in response to the need to slice the returned data;

S1233. In response to acquiring a threshold number of slices, suspend the cooperative program, and send the threshold number of slices;

S1234: In response to the data not being sent, steps S1231 to S1234 are cyclically executed.
The method according to claim 4, wherein the step of using the processing function to perform processing further comprises:

In response to the returned data, no slicing is required, and the data is sent directly.
The method according to claim 5 or 6, wherein the step of using the processing function for processing further comprises: closing the connection when it is determined that the cooperative program is in a suspended state after the data is sent.
A Web request processing device, characterized in that it is applied to a Wi-Fi chip capable of configuring Wi-Fi parameters, and the device includes:

The connection establishment module is configured to establish a connection for the Web request based on the received Web request;

The data processing module is configured to remotely call the LUA script and select the processing function corresponding to the Web request for processing;

The sending module is configured to return processing result data.
An electronic device, characterized in that it comprises:

One or more processors;

Storage device for storing one or more programs,

When the one or more programs are executed by the one or more processors, the one or more processors implement the method according to any one of claims 1-7.
A computer readable medium having a computer program stored thereon, wherein the program is executed by a processor to implement the method according to any one of claims 1-7.