CN116866331A - File transmission method, device, computer equipment and storage medium - Google Patents

Abstract

This application relates to file transmission methods, devices, computer equipment and storage media. The method includes: responding to a download operation of the first file in the virtual computer, generating a download instruction according to the download operation; scanning the display page to obtain the first encoded file, and decoding the first encoded file to obtain the first file ; In response to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate a keyboard corresponding to the keyboard characters Event; send the keyboard event to the virtual computer. The embodiment of the present disclosure realizes bidirectional transmission of files between the virtual computer and the client.

Description

File transfer methods, devices, computer equipment and storage media

Technical field

The present application relates to the field of computer technology, and in particular to a file transmission method, device, computer equipment, storage medium and computer program product.

Background technique

With the development of computer technology, virtual personal computers (Virtual PCs, Personal Computers) can be generated on the cloud desktop server through resource virtualization for users to use. Users can connect to the virtual personal computer through the client in the cloud desktop terminal, and use the peripherals (such as keyboard and mouse) of the cloud desktop terminal to operate the virtual personal computer. In related technologies, many cloud desktop systems do not support file transfer between the cloud desktop terminal and the server virtual personal computer.

Contents of the invention

Based on this, it is necessary to provide a file transmission method, device, computer equipment, storage medium and computer program product to address the above technical problems.

In the first aspect, this application provides a file transmission method. Applied to the client, the methods include:

In response to the download operation of the first file in the virtual computer, a download instruction is generated according to the download operation; wherein the download instruction is used to instruct the virtual computer to correspond to the first file according to a preset first encoding rule. The byte stream is converted into a first encoded file, and the virtual computer is used to display the first encoded file and generate a display page;

Scan the display page to obtain the first encoded file, decode the first encoded file to obtain the first file;

In response to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate a keyboard event corresponding to the keyboard characters ;

Send the keyboard event to the virtual computer; wherein the keyboard event is used to instruct the virtual computer to parse the keyboard event to obtain the keyboard characters, and decode the keyboard characters into corresponding characters of the second file. byte stream.

In a possible implementation, the virtual computer is used to display the first encoded file and generate a display page, including:

The virtual computer is used to divide the first file into multiple first sub-files, display the first sub-coded files corresponding to each of the first sub-files on an interface, and generate multiple display pages; wherein, the The display page corresponds one-to-one with the first sub-encoding file.

In a possible implementation, the first encoding rule includes a plurality of first encoding sub-rules in a preset sequence, the scanning the display page to obtain the first encoding file, and decoding the first encoding file, Get the first file, including:

Scan the display page to obtain the first sub-encoding file;

Decode the first sub-encoded file according to the first encoding sub-rule to obtain the first decoded sub-file;

Verify the first decoding sub-file. If the verification fails, send a retransmission instruction to the virtual computer to instruct the virtual computer to switch the encoding rule to the next first encoding of the first encoding sub-rule. sub-rules, and convert the first sub-file into a new first sub-encoding file according to the next first encoding sub-rule, and display the new first sub-encoding file until all first decoding sub-files are The file verification passes and the first file is obtained.

In a possible implementation, in response to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate Keyboard events corresponding to the keyboard characters include:

In response to the upload operation of the second file in the client, split the second file into a plurality of second sub-files;

According to the preset second encoding rule, the byte stream corresponding to each second sub-file in the plurality of second sub-files is converted into keyboard characters, and a keyboard event corresponding to the keyboard characters is generated.

In a possible implementation, sending the keyboard event to the virtual computer includes:

Before sending the keyboard event corresponding to each of the second sub-files in the plurality of second sub-files, send a keyboard event indicating the start of the data page; wherein the data page corresponds to the keyboard event of the second sub-file. One-to-one correspondence of events;

After sending the keyboard event corresponding to each of the second sub-files in the plurality of second sub-files, a keyboard event indicating the end of the data page is sent.

In a possible implementation, the virtual computer is further configured to, after receiving and decoding the keyboard event corresponding to the second sub-file, verify the keyboard characters corresponding to the second sub-file and display the verification. The coded character corresponding to the verification result.

In a second aspect, this application also provides a file transmission device. The device includes:

Generating module, configured to respond to a download operation of the first file in the virtual computer and generate a download instruction according to the download operation; wherein the download instruction is used to instruct the virtual computer to convert the downloaded file according to a preset first encoding rule. Convert the byte stream corresponding to the first file into a first encoded file, and the virtual computer is used to display the first encoded file and generate a display page;

A scanning module, used to scan the display page to obtain the first encoded file, and decode the first encoded file to obtain the first file;

An encoding module, configured to respond to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate the keyboard characters corresponding to the second file. Keyboard events corresponding to characters;

A sending module, configured to send the keyboard event to the virtual computer; wherein the keyboard event is used to instruct the virtual computer to parse the keyboard event to obtain the keyboard character, and decode the keyboard character into the The byte stream corresponding to the second file.

In a possible implementation, the virtual computer is used to display the first encoded file and generate a display page, including:

The virtual computer is used to divide the first file into multiple first sub-files, display the first sub-coded files corresponding to each of the first sub-files on an interface, and generate multiple display pages; wherein, the The display page corresponds one-to-one with the first sub-encoding file.

In a possible implementation, the first encoding rule includes a plurality of first encoding sub-rules in a preset sequence, and the scanning module includes:

A scanning sub-module is used to scan the display page and obtain the first sub-encoded file;

A decoding sub-module, used to decode the first sub-encoded file according to the first encoding sub-rule to obtain the first decoded sub-file;

A check sub-module is used to check the first decoding sub-file. If the check fails, send a retransmission instruction to the virtual computer to instruct the virtual computer to switch the encoding rule to the first encoding sub-file. The next first encoding sub-rule of the rule, and according to the next first encoding sub-rule, convert the first sub-file into a new first sub-encoding file, and display the new first sub-encoding file, Until all the first decoded sub-files pass the verification, the first file is obtained

In a possible implementation, the encoding module includes:

A split sub-module, configured to split the second file into multiple second sub-files in response to the upload operation of the second file in the client;

A conversion sub-module, configured to convert the byte stream corresponding to each second sub-file in the plurality of second sub-files into keyboard characters according to the preset second encoding rule, and generate a byte stream corresponding to the keyboard characters. Keyboard events.

In a possible implementation, the sending module includes:

The first sending sub-module is configured to send a keyboard event indicating the start of a data page before sending a keyboard event corresponding to each second sub-file in the plurality of second sub-files; wherein the data page and the The keyboard events corresponding to the second sub-file are in one-to-one correspondence;

The second sending sub-module is configured to send a keyboard event indicating the end of the data page after sending the keyboard event corresponding to each of the plurality of second sub-files.

In a possible implementation, the virtual computer is further configured to, after receiving and decoding the keyboard event corresponding to the second sub-file, verify the keyboard characters corresponding to the second sub-file and display the verification. The coded character corresponding to the verification result.

In a third aspect, this application also provides a computer device. The computer device includes a memory and a processor. The memory stores a computer program. When the processor executes the computer program, it implements the steps of the file transmission method according to any one of the embodiments of the present disclosure.

In a fourth aspect, this application also provides a computer-readable storage medium. The computer-readable storage medium has a computer program stored thereon, and when the computer program is executed by a processor, the steps of the file transmission method described in any one of the embodiments of the present disclosure are implemented.

In a fifth aspect, this application also provides a computer program product. The computer program product includes a computer program that, when executed by a processor, implements the steps of the file transmission method described in any one of the embodiments of the present disclosure.

The above file transmission methods, devices, computer equipment, storage media and computer program products, when it is necessary to download the first file from the virtual computer, can encode the first file into a first encoded file and display the first encoded file so that the customer can The client can obtain the first file by scanning and decoding it; when the second file needs to be uploaded from the client, the second file can be encoded into keyboard characters through encoding, and then a keyboard event can be generated. The virtual computer is caused to obtain the second file by listening to keyboard events. The embodiments of the present disclosure realize bidirectional transmission of files between the virtual computer and the client, and encode the files before each transmission, which is more conducive to compressing the amount of data and improving transmission efficiency.

Description of the drawings

Figure 1 is an application environment diagram of the file transmission method in one embodiment;

Figure 2 is a first flow diagram of a file transmission method in an embodiment;

Figure 3 is a second flow diagram of a file transmission method in another embodiment;

Figure 4 is a structural block diagram of a file transmission device in one embodiment;

Figure 5 is an internal structure diagram of a computer device in one embodiment.

Detailed ways

In order to make the purpose, technical solutions and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present application and are not used to limit the present application.

The file transmission method provided by the embodiment of the present application can be applied in the application environment as shown in Figure 1. Among them, the cloud server virtualizes the virtual computer 104, and the client 102 communicates with the virtual computer 104 through the network. Among them, the client 102 can be, but is not limited to, various personal computers, laptops, smart phones, tablets, Internet of Things devices, and portable wearable devices. The Internet of Things devices can be smart speakers, smart TVs, smart air conditioners, and smart vehicle-mounted devices. wait. Portable wearable devices can be smart watches, smart bracelets, head-mounted devices, etc. The server can be implemented as an independent server or a server cluster composed of multiple servers.

In one embodiment, as shown in Figure 2, a file transfer method is provided. This method is explained by taking the method applied to the client in Figure 1 as an example, and includes the following steps:

Step S201: In response to the download operation of the first file in the virtual computer, generate a download instruction according to the download operation; wherein the download instruction is used to instruct the virtual computer to convert the first file into the first file according to the preset first encoding rule. The byte stream corresponding to a file is converted into a first encoded file, and the virtual computer is used to display the first encoded file and generate a display page.

Specifically, when the client accesses the virtual computer, it can express the download requirement for the first file in the virtual computer through some preset operations. In this embodiment of the present disclosure, the first file may include a file downloaded from the virtual computer. The byte stream of the first file represents the storage of the file, for example, one byte is composed of 8 binary bits. The first encoding rule may include existing encoding rules or may include customized encoding rules. In an exemplary embodiment, the customized encoding rules may include: encoding of the correspondence between byte streams and characters. Among them, when selecting characters, you can choose characters or character combinations that are common, easy to recognize, and have widely different glyphs, such as the Arabic numeral "1" and the lowercase letter "l", which have very similar glyphs. It is not recommended to use them at the same time to avoid subsequent scanning errors. In another exemplary embodiment, the customized encoding rules may include selecting a joint combination of any two or more letters from A to Z in the English alphabet to establish a corresponding relationship with the bytes. Since the value of the byte ranges from 0 to 255, the number of required characters or character combinations may include 256.

In this embodiment of the present disclosure, the byte stream is converted into a first encoded file through a first encoding rule. The virtual computer can display the first encoded file and generate a display page.

Step S203: Scan the display page to obtain a first encoded file, and decode the first encoded file to obtain a first file.

Specifically, the client scans the display page. In an exemplary embodiment, the first encoded file in the display page, that is, the characters corresponding to the byte stream, can be identified through OCR scanning. In an exemplary embodiment, a decoding rule consistent with the first encoding rule may be used to decode the recognized characters, that is, to restore the characters into a byte stream to obtain the first file.

Step S205: In response to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate a byte stream corresponding to the keyboard characters. keyboard events.

Specifically, the second encoding rule may include a correspondence between byte values and characters. The keyboard characters may include characters presented on the keyboard of a computer input device, such as characters, numbers, symbols, etc. The client can convert the byte stream corresponding to the second file into keyboard characters according to the second encoding rule. In an exemplary embodiment, two letters from English letters "A" to "Z" can be selected as a combination to correspond to a byte value. In the embodiment of the present disclosure, many current programming languages support the generation of keyboard key events. For example, in the Java language, the keyPress and keyRelease methods of the Robot class can be used to generate keyboard events. Therefore, the keyboard events corresponding to the keyboard characters can be generated through programming. For example, in the Java programming language, the transmission of the character "A" can be implemented with the following code: Robot robot=new Robot(); robot.keyPress(65); the above value "65" is the ASCII code corresponding to the character "A" .

Step S207: Send the keyboard event to the virtual computer; wherein the keyboard event is used to instruct the virtual computer to parse the keyboard event to obtain the keyboard character, and decode the keyboard character into the second The byte stream corresponding to the file.

Specifically, the keyboard event is sent to the virtual computer. Specifically, for example: the virtual computer receives the "Home" key press event and displays the first transmission page on the user interface; if the virtual computer receives the "PgUp" key When the event is pressed, the current page will be encoded with another encoding scheme to generate a new transmission page, which will be displayed on the user interface; if the "PgDn" key press event is received, the next transmission page will be displayed on the user interface; if When the "End" key press event is received, the transmission ends. The virtual computer uses the decoding rule consistent with the second encoding rule to convert the keyboard characters in the keyboard event into corresponding byte values, and the multiple byte values form a byte stream. After all keyboard characters are decoded, the second file is obtained.

In the above file transfer method, when the first file needs to be downloaded from the virtual computer, the first file can be encoded into a first encoded file and the first encoded file can be displayed, so that the client can obtain the first file by scanning and decoding. One file; when a second file needs to be uploaded from the client, the second file can be encoded into keyboard characters through encoding, and then a keyboard event can be generated. The virtual computer is caused to obtain the second file by listening to keyboard events. The embodiments of the present disclosure realize bidirectional transmission of files between the virtual computer and the client, and encode the files before each transmission, which is more conducive to compressing the amount of data and improving transmission efficiency.

In a possible implementation, the virtual computer is used to display the first encoded file and generate a display page, including:

The virtual computer is used to divide the first file into multiple first sub-files, display the first sub-coded files corresponding to each of the first sub-files on an interface, and generate multiple display pages; wherein, the The display page corresponds one-to-one with the first sub-encoding file.

Specifically, the first file can be divided according to the preset data amount to obtain multiple first sub-files. In the embodiment of the present disclosure, the preset data amount can be set with reference to the size of the display screen. The setting principles can include that each first sub-file can include as many bytes as possible to ensure transmission efficiency, but cannot contain too many bytes. The number of bytes causes the encoding to produce a string that cannot be fully displayed on the user interface. In an exemplary embodiment, for each first sub-file, each byte in the first sub-file can be mapped to a character according to the corresponding relationship between bytes and characters according to the preset first encoding rule. Multiple characters are concatenated to generate a string. For example: a certain byte value is 0 and the corresponding character combination in the encoding scheme is "AA", then the byte is converted into the character combination "AA". The first sub-encoded file includes the above-mentioned character string.

In this disclosed embodiment, when transmitting multiple first sub-files, a feedback mechanism on the client side can also be set. In an exemplary embodiment, the client generates a dummy keyboard event to notify the virtual computer to transmit the next first sub-file. For example, the cloud desktop terminal generates a "PgDn" key press event to notify the server virtual PC to display the next page for transmission. Page.

In the embodiment of the present disclosure, the first file is divided into multiple first sub-files, and each first sub-encoded file is displayed on the interface. On the one hand, it is beneficial to transmit the first file with a large amount of data, and on the other hand, it avoids When a file transmission error occurs, the entire first file is transmitted, reducing transmission efficiency.

In a possible implementation, as shown in Figure 3, the first encoding rule includes a plurality of first encoding sub-rules in a preset sequence. In step S203, scan the display page to obtain the first encoding file. , decode the first encoded file to obtain the first file, including:

Step S301: Scan the display page to obtain the first sub-encoded file;

Step S303: Decode the first sub-encoded file according to the first encoding sub-rule to obtain the first decoded sub-file;

Step S305: Verify the first decoding sub-file. If the verification fails, send a retransmission instruction to the virtual computer to instruct the virtual computer to switch the encoding rule to the next one of the first encoding sub-rule. first encoding sub-rule, and according to the next first encoding sub-rule, convert the first sub-file into a new first sub-encoding file, and display the new first sub-encoding file until all the first sub-encoding files are Once the decoded sub-file passes the verification, the first file is obtained.

Specifically, embodiments of the present disclosure may set up multiple sets of encoding schemes, and each encoding scheme corresponds to a first encoding sub-rule. In an exemplary embodiment, the display page of the first sub-encoded file is scanned to obtain the first sub-encoded file. A first encoding sub-rule is determined from a plurality of first encoding sub-rules in a preset sequence, and the first sub-encoding file is decoded to obtain a first decoded sub-file. The first decoded sub-file is verified, and if the verification fails, a retransmission instruction is sent. The retransmission instruction is used to instruct the virtual computer to switch the encoding rule to the first encoding sub-rule next to the first encoding sub-rule. Since the arrangement order of the plurality of first encoding sub-rules is predetermined, the next first encoding sub-rule of the first encoding sub-rule is also determined. Correspondingly, when decoding the first sub-encoded file, the client also needs to decode according to the next first encoding sub-rule of the first encoding sub-rule. It should be noted that the embodiment of the present disclosure does not limit the number of verifications. If the first decoding sub-file decoded by the next first encoding sub-rule still fails the verification, continue to switch to the first encoding sub-rule. .

In the embodiment of the present disclosure, the retransmission instruction can be fed back to the virtual computer through a preset keyboard event. For example, the cloud desktop terminal generates a "PgUp" key press event to notify the server virtual PC to change the current data page to another one. Encoding scheme encoding generates new transmission page string display.

In the embodiment of the present disclosure, the MD5 verification method may be used to verify the first sub-decoded file. In an exemplary embodiment, the MD5 value may be spliced after the string of the first encoded sub-file. In the first sub-decoded file, a preset number of character strings are intercepted from the end forward as the MD5 value. Compare the MD5 value with the MD5 value of the string decoded in the first sub-decoded file. If they are the same, it means that no error occurred during the transmission process; if they are not the same, it means that an error occurred during the transmission process. In an exemplary embodiment, the MD5 value encoding string may be fixed to 32 characters, where the MD5 value is fixed to 16 bytes, and 1 byte is converted into 2 characters in the encoding rule.

In the above embodiment, by setting a plurality of first encoding sub-rules in a preset sequence, and through verification, when an error occurs in the transmission of the first encoding sub-file, the next encoding sub-rule is replaced, which is beneficial to improving the overall accuracy of the first file transmission. Rate.

In a possible implementation, in response to the upload operation of the second file in the client, convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate Keyboard events corresponding to the keyboard characters include:

In response to the upload operation of the second file in the client, split the second file into a plurality of second sub-files;

According to the preset second encoding rule, the byte stream corresponding to each second sub-file in the plurality of second sub-files is converted into keyboard characters, and a keyboard event corresponding to the keyboard characters is generated.

Specifically, the second file is split into multiple second sub-files. In an exemplary embodiment, the second file can be split into second sub-files of a fixed size according to the amount of data. For example, 1000 bytes can be set as a second sub-file. Two sub-files. Convert the byte stream corresponding to each second sub-file in the plurality of second sub-files into keyboard characters according to the preset second encoding rule. In an exemplary embodiment, file verification rules can be set, for example, calculating the MD5 value of the second sub-file, splitting the MD5 value into a byte stream, encoding and generating a string according to the second encoding rule, and splicing it into the second sub-file. After the keyboard characters of the sub-file, see the spliced string to generate keyboard events for transmission.

In this disclosed embodiment, by splitting the second file into multiple second sub-files and sending each second sub-file separately, it is helpful to avoid the retransmission of the second file when errors occur in a small number of keyboard events. Improved the transfer efficiency of the second file.

In a possible implementation, sending the keyboard event to the virtual computer includes:

Before sending the keyboard event corresponding to each of the second sub-files in the plurality of second sub-files, send a keyboard event indicating the start of the data page; wherein the data page corresponds to the keyboard event of the second sub-file. One-to-one correspondence of events;

After sending the keyboard event corresponding to each of the second sub-files in the plurality of second sub-files, a keyboard event indicating the end of the data page is sent.

In the embodiment of the present disclosure, the second file is split into multiple second sub-files, and each second sub-file is sent separately. In an exemplary embodiment, a notification mechanism may be provided. For example, the keyboard event: "Home" key represents the start of the transmission of the data page corresponding to a second sub-file, and the keyboard event: "End" key represents the end of the transmission of the data page corresponding to the second sub-file.

In the above embodiment, by setting a preset notification mechanism, such as a keyboard event at the beginning of a data page and a keyboard event at the end of a data page, it is helpful for the virtual computer to distinguish keyboard events corresponding to different second sub-files. And analyze the keyboard event corresponding to the second sub-file to obtain the keyboard characters.

In a possible implementation, the virtual computer is further configured to, after receiving and decoding the keyboard event corresponding to the second sub-file, verify the keyboard characters corresponding to the second sub-file and display the verification. The coded character corresponding to the verification result.

Specifically, multiple character verification rules can be used to verify keyboard characters, such as MD5 verification rules. In an exemplary embodiment, the virtual computer parses the received keyboard event corresponding to the second sub-file, and separates the keyboard characters corresponding to the second sub-file and the MD5 value. Perform an MD5 operation on the keyboard characters corresponding to the second sub-file to obtain the MD5 budget value. Compare the operation value with the received MD5 value. If they are the same, the verification will pass; if they are not the same, the verification will fail. In an exemplary embodiment, the above verification result can be displayed in the interface, so that the client can learn the transmission status of the second sub-file through scanning. In an exemplary embodiment, the virtual computer displays preset characters, such as the character "A", indicating successful transmission; the character "B" indicating failed transmission. The verification result may include transmission success or transmission failure.

It should be understood that although the steps in the flowcharts involved in the above-mentioned embodiments are shown in sequence as indicated by the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated in this article, there is no strict order restriction on the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above embodiments may include multiple steps or stages. These steps or stages are not necessarily executed at the same time, but may be completed at different times. The execution order of these steps or stages is not necessarily sequential, but may be performed in turn or alternately with other steps or at least part of the steps or stages in other steps.

Based on the same inventive concept, embodiments of the present application also provide a file transmission device for implementing the above-mentioned file transmission method. The solution to the problem provided by this device is similar to the solution recorded in the above method. Therefore, for the specific limitations in one or more file transfer device embodiments provided below, please refer to the above limitations on the file transfer method. I won’t go into details here.

In one embodiment, as shown in Figure 4, a file transmission device is provided, including:

Generating module 401, configured to respond to the download operation of the first file in the virtual computer and generate a download instruction according to the download operation; wherein the download instruction is used to instruct the virtual computer to encode the first file according to the preset first encoding rule. The byte stream corresponding to the first file is converted into a first encoded file, and the virtual computer is used to display the first encoded file and generate a display page;

The scanning module 403 is used to scan the display page to obtain the first encoded file, and decode the first encoded file to obtain the first file;

Encoding module 405, configured to respond to the upload operation of the second file in the client and convert the byte stream corresponding to the second file into keyboard characters according to the preset second encoding rule, and generate the Keyboard events corresponding to keyboard characters;

Sending module 407, configured to send the keyboard event to the virtual computer; wherein the keyboard event is used to instruct the virtual computer to parse the keyboard event to obtain the keyboard character, and decode the keyboard character into the The byte stream corresponding to the second file.

In a possible implementation, the virtual computer is used to display the first encoded file and generate a display page, including:

The virtual computer is used to divide the first file into multiple first sub-files, display the first sub-coded files corresponding to each of the first sub-files on an interface, and generate multiple display pages; wherein, the The display page corresponds one-to-one with the first sub-encoding file.

In a possible implementation, the first encoding rule includes a plurality of first encoding sub-rules in a preset sequence, and the scanning module includes:

A scanning sub-module is used to scan the display page and obtain the first sub-encoded file;

A decoding sub-module, used to decode the first sub-encoded file according to the first encoding sub-rule to obtain the first decoded sub-file;

A check sub-module is used to check the first decoding sub-file. If the check fails, send a retransmission instruction to the virtual computer to instruct the virtual computer to switch the encoding rule to the first encoding sub-file. The next first encoding sub-rule of the rule, and according to the next first encoding sub-rule, convert the first sub-file into a new first sub-encoding file, and display the new first sub-encoding file, Until all the first decoded sub-files pass the verification, the first file is obtained

In a possible implementation, the encoding module includes:

A split sub-module, configured to split the second file into multiple second sub-files in response to the upload operation of the second file in the client;

A conversion sub-module, configured to convert the byte stream corresponding to each second sub-file in the plurality of second sub-files into keyboard characters according to the preset second encoding rule, and generate a byte stream corresponding to the keyboard characters. Keyboard events.

In a possible implementation, the sending module includes:

The first sending sub-module is configured to send a keyboard event indicating the start of a data page before sending a keyboard event corresponding to each second sub-file in the plurality of second sub-files; wherein the data page and the The keyboard events corresponding to the second sub-file are in one-to-one correspondence;

The second sending sub-module is configured to send a keyboard event indicating the end of the data page after sending the keyboard event corresponding to each of the plurality of second sub-files.

In a possible implementation, the virtual computer is further configured to, after receiving and decoding the keyboard event corresponding to the second sub-file, verify the keyboard characters corresponding to the second sub-file and display the verification. The coded character corresponding to the verification result.

Each module in the above file transmission device can be implemented in whole or in part by software, hardware and combinations thereof. Each of the above modules may be embedded in or independent of the processor of the computer device in the form of hardware, or may be stored in the memory of the computer device in the form of software, so that the processor can call and execute the operations corresponding to the above modules.

In one embodiment, a computer device is provided. The computer device may be a terminal, and its internal structure diagram may be shown in Figure 5 . The computer device includes a processor, memory, communication interface, display screen and input device connected through a system bus. Wherein, the processor of the computer device is used to provide computing and control capabilities. The memory of the computer device includes non-volatile storage media and internal memory. The non-volatile storage medium stores operating systems and computer programs. This internal memory provides an environment for the execution of operating systems and computer programs in non-volatile storage media. The communication interface of the computer device is used for wired or wireless communication with external terminals. The wireless mode can be implemented through WIFI, mobile cellular network, NFC (Near Field Communication) or other technologies. The computer program, when executed by the processor, implements a file transfer method. The display screen of the computer device may be a liquid crystal display or an electronic ink display. The input device of the computer device may be a touch layer covered on the display screen, or may be a button, trackball or touch pad provided on the computer device shell. , it can also be an external keyboard, trackpad or mouse, etc.

Those skilled in the art can understand that the structure shown in Figure 5 is only a block diagram of a partial structure related to the solution of the present application, and does not constitute a limitation on the computer equipment to which the solution of the present application is applied. The specific computer equipment can May include more or fewer parts than shown, or combine certain parts, or have a different arrangement of parts.

Those of ordinary skill in the art can understand that all or part of the processes in the methods of the above embodiments can be completed by instructing relevant hardware through a computer program. The computer program can be stored in a non-volatile computer-readable storage. In the media, when executed, the computer program may include the processes of the above method embodiments. Any reference to memory, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory can include read-only memory (ROM), magnetic tape, floppy disk, flash memory, optical memory, high-density embedded non-volatile memory, resistive memory (ReRAM), magnetic variable memory (Magnetoresistive Random) Access Memory (MRAM), Ferroelectric Random Access Memory (FRAM), Phase Change Memory (PCM), graphene memory, etc. Volatile memory may include random access memory (Random Access Memory, RAM) or external cache memory. By way of illustration but not limitation, RAM can be in various forms, such as static random access memory (Static Random Access Memory, SRAM) or dynamic random access memory (Dynamic Random Access Memory, DRAM). The databases involved in the various embodiments provided in this application may include at least one of a relational database and a non-relational database. Non-relational databases may include blockchain-based distributed databases, etc., but are not limited thereto. The processors involved in the various embodiments provided in this application may be general-purpose processors, central processing units, graphics processors, digital signal processors, programmable logic devices, quantum computing-based data processing logic devices, etc., and are not limited to this.

The technical features of the above embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, all possible combinations should be used. It is considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but should not be construed as limiting the patent scope of the present application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the scope of protection of this application should be determined by the appended claims.

Claims (10)

1. A method for file transfer, applied to a client, the method comprising:

responding to the downloading operation of a first file in a virtual computer, and generating a downloading instruction according to the downloading operation; the downloading instruction is used for indicating the virtual computer to convert the byte stream corresponding to the first file into the first encoded file according to a preset first encoding rule, and the virtual computer is used for displaying the first encoded file and generating a display page;

scanning the display page to obtain a first encoded file, and decoding the first encoded file to obtain a first file;

responding to the uploading operation of a second file in the client, converting a byte stream corresponding to the second file into keyboard characters according to a preset second coding rule, and generating a keyboard event corresponding to the keyboard characters;

transmitting the keyboard event to the virtual computer; the keyboard event is used for indicating the virtual computer to analyze the keyboard event to obtain the keyboard characters, and decoding the keyboard characters into byte streams corresponding to the second file.

2. The method of claim 1, wherein the virtual computer is configured to render the first encoded file, and wherein generating a rendering page comprises:

the virtual computer is used for dividing the first file into a plurality of first sub-files, displaying the first sub-coded file corresponding to each first sub-file at an interface, and generating a plurality of display pages; the display pages are in one-to-one correspondence with the first sub-coded files.

3. The method of claim 2, wherein the first encoding rule comprises a plurality of first encoding sub-rules in a preset order, the scanning the presentation page to obtain a first encoded file, and decoding the first encoded file to obtain a first file, comprising:

scanning the display page to obtain a first subcode file;

decoding the first sub-encoded file according to a first encoding sub-rule to obtain a first decoded sub-file;

and checking the first decoding subfile, if the check is not passed, sending a retransmission instruction to the virtual computer to instruct the virtual computer to switch the coding rule to the next first coding subfile of the first coding subfile, and converting the first subfile into a new first subfile according to the next first coding subfile, and displaying the new first subfile until all the first decoding subfiles pass the check to obtain the first file.

4. The method of claim 1, wherein in response to the uploading operation of the second file in the client, converting the byte stream corresponding to the second file into keyboard characters according to a preset second encoding rule, and generating a keyboard event corresponding to the keyboard characters, comprises:

responding to the uploading operation of a second file in the client, and splitting the second file into a plurality of second subfiles;

and converting the byte stream corresponding to each second sub-file in the plurality of second sub-files into keyboard characters according to a preset second coding rule, and generating a keyboard event corresponding to the keyboard characters.

5. The method of claim 4, wherein the sending the keyboard event to the virtual computer comprises:

before transmitting a keyboard event corresponding to each of the plurality of second subfiles, transmitting a keyboard event indicating the start of a data page; wherein, the data page corresponds to the keyboard event corresponding to the second sub-file one by one;

and after the keyboard event corresponding to each second sub-file in the plurality of second sub-files is sent, sending a keyboard event which indicates that the data page is ended.

6. The method of claim 5, wherein the virtual computer is further configured to verify the keyboard character corresponding to the second sub-file after receiving and decoding the keyboard event corresponding to the second sub-file, and display the encoded character corresponding to the verification result.

7. A file transfer device, the device being applied to a client, comprising:

the generation module is used for responding to the downloading operation of the first file in the virtual computer and generating a downloading instruction according to the downloading operation; the downloading instruction is used for indicating the virtual computer to convert the byte stream corresponding to the first file into the first encoded file according to a preset first encoding rule, and the virtual computer is used for displaying the first encoded file and generating a display page;

the scanning module is used for scanning the display page to obtain a first coded file, and decoding the first coded file to obtain a first file;

the encoding module is used for responding to the uploading operation of the second file in the client, converting the byte stream corresponding to the second file into keyboard characters according to a preset second encoding rule, and generating a keyboard event corresponding to the keyboard characters;

the sending module is used for sending the keyboard event to the virtual computer; the keyboard event is used for indicating the virtual computer to analyze the keyboard event to obtain the keyboard characters, and decoding the keyboard characters into byte streams corresponding to the second file.

8. A computer device comprising a memory and a processor, the memory storing a computer program, characterized in that the processor implements the steps of the file transfer method of any of claims 1 to 6 when the computer program is executed.

9. A computer-readable storage medium, on which a computer program is stored, characterized in that the computer program, when being executed by a processor, implements the steps of the file transfer method of any of claims 1 to 6.

10. A computer program product comprising a computer program, characterized in that the computer program, when being executed by a processor, implements the steps of the file transfer method of any of claims 1 to 6.