CN110022287A - A kind of asynchronous distributed document transmission method, terminal device and storage medium - Google Patents
A kind of asynchronous distributed document transmission method, terminal device and storage medium Download PDFInfo
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- CN110022287A CN110022287A CN201810020954.7A CN201810020954A CN110022287A CN 110022287 A CN110022287 A CN 110022287A CN 201810020954 A CN201810020954 A CN 201810020954A CN 110022287 A CN110022287 A CN 110022287A
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- request
- transmission method
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/10—File systems; File servers
- G06F16/18—File system types
- G06F16/182—Distributed file systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/46—Multiprogramming arrangements
- G06F9/50—Allocation of resources, e.g. of the central processing unit [CPU]
- G06F9/5005—Allocation of resources, e.g. of the central processing unit [CPU] to service a request
- G06F9/5027—Allocation of resources, e.g. of the central processing unit [CPU] to service a request the resource being a machine, e.g. CPUs, Servers, Terminals
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/12—Applying verification of the received information
- H04L63/123—Applying verification of the received information received data contents, e.g. message integrity
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/06—Protocols specially adapted for file transfer, e.g. file transfer protocol [FTP]
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/104—Peer-to-peer [P2P] networks
- H04L67/1074—Peer-to-peer [P2P] networks for supporting data block transmission mechanisms
- H04L67/1078—Resource delivery mechanisms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/01—Protocols
- H04L67/12—Protocols specially adapted for proprietary or special-purpose networking environments, e.g. medical networks, sensor networks, networks in vehicles or remote metering networks
Abstract
The present invention relates to a kind of asynchronous distributed document transmission method, terminal device and storage mediums, in the method, comprising the following steps: user presents a paper the request of upload or downloading；Processor selects corresponding document processing module using selection mechanism, which is added in processing queue by document processing module；The idle thread of processing queue executes the request, selects corresponding database processing module using selection mechanism, and request write-in is generated in local temporary files from the data set that database extracts；Increase verification code domain and filler domain in temporary file；File is sent after uploading to delete temporary file with message to user；The value of verification code domain and filler domain to file verifies, and as incorrect, retransmits；Judge whether file extension is abnormal, it is such as abnormal, it is modified according to file type to file extension.The present invention improves file transmission efficiency by the asynchronous distributed processing of file, and the integrality for improving file is verified by multistep.
Description
Technical field
The present invention relates to computer file system field more particularly to a kind of asynchronous distributed document transmission methods, terminal
Equipment and storage medium.
Background technique
As automobile cloud enjoys the continuous development of platform, the vehicle number of system support is more and more huger, and function is more and more various,
Naturally business datum is also increasing, and some functions relevant with file is caused to go from bad to worse to the experience of user, single
The pure synchronous transmission for carrying out file can no longer meet the experience requirements of user, knot that is not only waiting for a long time, but also returning
Fruit failure rate is high, such as: the file export function of report, transmission of multimedia file etc..And for program, the pipe of file
Managing function, itself is a more complicated things, and since data volume is big, transmission is time-consuming, occupancy capacity, waste bandwidth, because
This, however it remains the larger space promoted, so, it is more important that the efficiency that raising file is uploaded and downloaded just becomes cloud platform
Link, be not only on the one hand conducive to the performance of lifting system, on the other hand also have to the success rate of the upload of file and downloading
It ensures.
Summary of the invention
To solve the above-mentioned problems, the present invention is intended to provide a kind of asynchronous distributed document transmission method, terminal device and
Storage medium improves file transmission efficiency by the asynchronous distributed processing of file, is verified by multistep and improve the complete of file
Whole property.
Concrete scheme is as follows:
1. a kind of asynchronous distributed document transmission method, comprising the following steps:
S1: user presents a paper upload or the request of file download in user interface；
S2: processor selects corresponding document processing module using selection mechanism, and the request is submitted to this document
In processing module, which is added in processing queue by document processing module；
The selection mechanism includes but is not limited to Hash consistency, random, poll and customized selection mechanism；
S3: judging whether the thread handled in queue for handling request is free idle thread, if so, into S4, if it has not,
Wait in line, until there is idle thread, into S4；
S4: idle thread executes the request, corresponding database processing module is selected using selection mechanism, at database
Reason module extracts data set from corresponding database, will generate in local temporary files in request write-in data set；
S5: increase verification code domain and filler domain in the temporary file, the verification code domain storage is to file data
The data of check results, the filler domain storage are used to verify the integrality of file；
S6: judging whether file needs to compress, if desired, then being compressed, into S7, does not need such as, into S7；
S7: uploading to file server for temporary file, sends reminder message to user interface, deletes local interim text
Part；
The reminder message is to upload to complete and can download one of two kinds of reminder messages；
S8: user downloads file after receiving the reminder message that can be downloaded, and whether the file after judging downloading needs to solve
Pressure, if desired, then being decompressed, into S9, does not need such as, into S9；
S9: the value of verification code domain and filler domain to file verifies, such as correct, such as incorrect into S10, returns
S7；
S10: judging whether file extension is abnormal, such as abnormal, such as normal into S11, into S12；
S11: judging file type by file header, is modified according to file type to file extension, into S12；
S12: file verification success determines that downloading file is correct file.
Further, the temporary file includes key domain and codomain, and the verification code domain and filler domain, which are successively added, to be worth
Behind domain.
Further, the verification code domain includes 8 bytes.
Further, described that code domain is examined to store verification and calculated result to file data codomain.
Further, the 0X00 of M byte is stored in the filler domain, and the M should meet following formula:
(total bytes+M in file key domain and codomain) %N=0,
Wherein N is the integer greater than 1.
Further, the N=8.
Further, carrying out verification to the value of the verification code domain of file and filler domain described in step S9 includes following step
It is rapid:
Step 1: judge downloading file size whether the multiple for being N, if so, two are entered step, if it is not, returning
Return S7；
Step 2: judging whether the check results verified in code domain are correct, such as exact, such as incorrect into S10, returns
S7。
A kind of asynchronous distributed file transmission terminal equipment, including memory, processor and it is stored in the memory
In and the computer program that can run on the processor, the processor realize the present invention when executing the computer program
The step of embodiment above-mentioned method.
A kind of computer readable storage medium, the computer-readable recording medium storage have computer program, the meter
The step of above-mentioned method of the embodiment of the present invention is realized when calculation machine program is executed by processor.
The present invention uses technical solution as above, transmitting again for damage data can be carried out with lesser cost, asynchronous
Under the conditions of guarantee to fully ensure that the integrality of file again in the case of user interface response timely, it is direct if imperfect if
Heavy duty.It not only ensure that the performance boost of car networking cloud platform system, but also also have to the success rate of upload and the downloading of file
It ensures, improves the experience effect of user.
Detailed description of the invention
Fig. 1 show the flow diagram of the embodiment of the present invention one.
Fig. 2 show the file format schematic diagram before the embodiment of the present invention one is improved.
Fig. 3 show the improved file format schematic diagram of the embodiment of the present invention one.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
Embodiment one:
The embodiment of the present invention one provides a kind of asynchronous distributed document transmission method, as shown in Figure 1, it is real for the present invention
The flow diagram of asynchronous distributed document transmission method described in example one is applied, the method can comprise the following steps that
S1: user presents a paper upload or the request of file download in user interface.
In the embodiment after user presents a paper upload or the request of file download, processor does not have to return to knot in time
Fruit first returns to present, waits the prompting message that returns again to upload completion after the completion of processing or can download.In the embodiment
The database software used is redis database, and the redis database is high performance key assignments (key-value) number
According to library.
S2: processor selects corresponding document processing module using selection mechanism, and the request is submitted to this document
In processing module, which is added in processing queue by document processing module.
The selection mechanism includes but is not limited to Hash consistency, random, poll and customized selection mechanism, the selection
Mechanism can set which kind of selection mechanism selected according to demand.
S3: judging whether the thread handled in queue for handling request is free idle thread, if so, into S4, if it has not,
Wait in line, until there is idle thread, into S4.
In the embodiment, the thread of request can be handled simultaneously comprising two in the processing queue, if working as the first two line
When journey is all occupied, then the request newly received need to be waited in line handled after the completion of processing.
S4: idle thread executes the request, corresponding database processing module is selected using selection mechanism, at database
Reason module extracts data set from corresponding database, will generate in local temporary files in request write-in data set.
The temporary file includes but is not limited to excel file, picture file and text file.
S5: increase verification code domain and filler domain in the temporary file, the verification code domain storage is to file data
The data of check results, the filler domain storage are used to verify the integrality of file.
The accuracy and read-write efficiency of file data can be guaranteed by increasing verification code domain and filler domain in temporary file.
With reference to shown in Fig. 2,3, the temporary file is stored with the format of key-value, i.e., the described temporary file include key domain and
Codomain, the verification code domain and filler domain are successively added behind codomain.
In the embodiment, the verification code domain includes 8 bytes.It is described to examine code domain storage to the verification knot of file data
Fruit.In the embodiment, the check results are the result for being verified and being calculated to codomain.
The 0X00 of M byte is stored in the filler domain, for verifying the integrality of file, total word in file key domain and codomain
Joint number adds the total bytes in filler domain to should be the multiple of N, and the M should meet following formula:
(total bytes+M in file key domain and codomain) %N=0,
Wherein N is the integer greater than 1.
It is system since current mainstream server is 64 in the embodiment, and 64 systems are 8 byte-aligneds, therefore
Preferably set N=8.
S7: uploading to file server for temporary file, sends reminder message to user interface, deletes local interim text
Part.
In the embodiment, the transmission reminder message is to send reminder message by redis.
Reminder message described in the embodiment is to upload to complete and can download one of two kinds of reminder messages.
S8: user downloads file after receiving the reminder message that can be downloaded, and whether the file after judging downloading needs to solve
Pressure, if desired, then being decompressed, into S9, does not need such as, into S9.
S9: the value of verification code domain and filler domain to file verifies, such as correct, such as incorrect into S10, returns
S7。
It is described verification the following steps are included:
Step 1: judge downloading file size whether the multiple for being N, if so, two are entered step, if it is not, returning
Return S7.
Step 2: judging whether the check results verified in code domain are correct, such as correct, such as incorrect into S10, returns
S7。
It can guarantee the correctness and integrality of file by verifying to the file after downloading.
S10: judging whether file extension is abnormal, such as abnormal, such as normal into S11, into S12.
The file extension (filename extension) is also referred to as the suffix name of file, is that operating system is used to mark
A kind of mechanism of will file type.Opening file using the text edit tool under 16 multilevel modes can be by checking file header
Character determine the type of file, the file header is usually preceding the 4 of file, 8,12 and 16 bytes, common file type
File header character has following several:
JPEG (jpg), file header: FFD8FF
PNG (png), file header: 89504E47
GIF (gif), file header: 47494638
TIFF (tif), file header: 49492A00
Windows Bitmap (bmp), file header: 424D
CAD (dwg), file header: 41433130
S11: judging file type by file header, is modified according to file type to file extension, into S12.
In the embodiment, file is opened under 16 multilevel modes using the text edit tool NotePad++, checks file header
Character, which is carried out with character corresponding to specific file type corresponding, the text edit tool automatically expands file
Exhibition name is corrected as the corresponding file extension of the character.
S12: file verification success determines that downloading file is correct file.
The embodiment of the present invention one can carry out transmitting again for damage data with lesser cost, guarantee under conditions of asynchronous
The integrality that can fully ensure that file in the case of user interface response timely again, the directly heavy duty if imperfect.Not only
It ensure that the performance boost of car networking cloud platform system, and there has also been guarantees to the success rate of upload and the downloading of file, mention
The high experience effect of user.
Embodiment two:
The present invention also provides a kind of asynchronous distributed file transmission terminal equipment, including memory, processor and storage
In the memory and the computer program that can run on the processor, the processor execute the computer program
Step in the above method embodiment of the Shi Shixian embodiment of the present invention one.
Further, as an executable scheme, the asynchronous distributed file transmission terminal equipment be can be on table
Type computer, notebook, palm PC and cloud server etc. calculate equipment.The asynchronous distributed file transmission terminal equipment
It may include, but be not limited only to, processor, memory.It will be understood by those skilled in the art that above-mentioned asynchronous distributed file transmission
The composed structure of terminal device is only the example of asynchronous distributed file transmission terminal equipment, is not constituted to asynchronous distributed
The restriction of file transmission terminal equipment may include perhaps combining certain components or not than above-mentioned more or fewer components
Same component, such as the asynchronous distributed file transmission terminal equipment can also be set including input-output equipment, network insertion
Standby, bus etc., it is not limited in the embodiment of the present invention.
Further, as an executable scheme, alleged processor can be central processing unit (Centran
Processing Unit, CHECKPOINTU), it can also be other general processors, digital signal processor (Digitan
Signan Processor, DSP), specific integrated circuit (Appnication Specific Integrated Circuit,
ASIC), ready-made programmable gate array (Fiend-Programmabne Gate Array, FPGA) or other programmable logic
Device, discrete gate or transistor logic, discrete hardware components etc..General processor can be microprocessor or this at
Reason device is also possible to any conventional processor etc., and the processor is the control of the asynchronous distributed file transmission terminal equipment
Center processed utilizes the various pieces of various interfaces and the entire asynchronous distributed file transmission terminal equipment of connection.
The memory can be used for storing the computer program and/or module, and the processor is by operation or executes
Computer program in the memory and/or module are stored, and calls the data being stored in memory, described in realization
The various functions of asynchronous distributed file transmission terminal equipment.The memory can mainly include storing program area and storing data
Area, wherein storing program area can application program needed for storage program area, at least one function；Storage data area can store
Created data etc. are used according to mobile phone.In addition, memory may include high-speed random access memory, can also include
Nonvolatile memory, such as hard disk, memory, plug-in type hard disk, intelligent memory card (Smart Media Card, SMC), safety
Digital (Secure Digitan, SD) card, flash card (Fnash Card), at least one disk memory, flush memory device or
Other volatile solid-state parts.
The present invention also provides a kind of computer readable storage medium, the computer-readable recording medium storage has computer
Program, when the computer program is executed by processor the step of the realization above method of the embodiment of the present invention.
If module/unit of the asynchronous distributed file transmission terminal integration of equipments is in the form of SFU software functional unit
Realize and when sold or used as an independent product, can store in a computer readable storage medium.Based on this
The understanding of sample, the present invention realize all or part of the process in above-described embodiment method, can also be referred to by computer program
Relevant hardware is enabled to complete, the computer program can be stored in a computer readable storage medium, the computer journey
Sequence is when being executed by processor, it can be achieved that the step of above-mentioned each embodiment of the method.Wherein, the computer program includes calculating
Machine program code, the computer program code can for source code form, object identification code form, executable file or it is certain in
Between form etc..The computer-readable medium may include: any entity or dress that can carry the computer program code
It sets, recording medium, USB flash disk, mobile hard disk, magnetic disk, CD, computer storage, read-only memory (ROM, Read-Onny
Memory), random access memory (RAM, Random Access Memory), electric carrier signal, telecommunication signal and software
Distribution medium etc..It should be noted that the content that the computer-readable medium includes can be according to making laws in jurisdiction
Requirement with patent practice carries out increase and decrease appropriate, such as in certain jurisdictions, according to legislation and patent practice, computer
Readable medium does not include electric carrier signal and telecommunication signal.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (9)
1. a kind of asynchronous distributed document transmission method, it is characterised in that: the following steps are included:
S1: user presents a paper upload or the request of file download in user interface；
S2: processor selects corresponding document processing module using selection mechanism, and the request is submitted to this document processing
In module, which is added in processing queue by document processing module；
The selection mechanism includes but is not limited to Hash consistency, random, poll and customized selection mechanism；
S3: judging whether the thread handled in queue for handling request is free idle thread, if so, into S4, if it has not, being lined up
Wait until idle thread occur, into S4；
S4: idle thread executes the request, selects corresponding database processing module, database processing mould using selection mechanism
Block extracts data set from corresponding database, will generate in local temporary files in request write-in data set；
S5: increasing verification code domain and filler domain in the temporary file, and the verification code domain stores the verification to file data
As a result, the data of the filler domain storage are used to verify the integrality of file；
S6: judging whether file needs to compress, if desired, then being compressed, into S7, does not need such as, into S7；
S7: uploading to file server for temporary file, sends reminder message to user interface, deletes local temporary files；
The reminder message is to upload to complete and can download one of two kinds of reminder messages；
S8: user downloads file after receiving the reminder message that can be downloaded, and whether the file after judging downloading needs to decompress, such as
It needs, is then decompressed, into S9, do not needed such as, into S9；
S9: the value of verification code domain and filler domain to file verifies, such as correct, such as incorrect into S10, returns to S7；
S10: judging whether file extension is abnormal, such as abnormal, such as normal into S11, into S12；
S11: judging file type by file header, is modified according to file type to file extension, into S12；
S12: file verification success determines that downloading file is correct file.
2. asynchronous distributed document transmission method according to claim 1, it is characterised in that: the temporary file includes key
Domain and codomain, the verification code domain and filler domain are successively added behind codomain.
3. asynchronous distributed document transmission method according to claim 2, it is characterised in that: the verification code domain includes 8
A byte.
4. asynchronous distributed document transmission method according to claim 1 or 3, it is characterised in that: the verification code domain is deposited
Put the verification and calculated result to file data codomain.
5. asynchronous distributed document transmission method according to claim 1, it is characterised in that: described the storage of filler domain M
The 0X00 of byte, the M should meet following formula:
(total bytes+M in file key domain and codomain) %N=0,
Wherein N is the integer greater than 1.
6. asynchronous distributed document transmission method according to claim 5, it is characterised in that: the formula that the M should meet
In parameter N be set as 8.
7. asynchronous distributed document transmission method according to claim 1, it is characterised in that: to file described in step S9
Verification code domain and filler domain value verified the following steps are included:
Step 1: judge downloading file size whether the multiple for being N, if so, enter step two, if it is not, returning to S7；
Step 2: judging whether the check results verified in code domain are correct, such as correct, such as incorrect into S10, returns to S7.
8. a kind of asynchronous distributed file transmission terminal equipment, including memory, processor and storage are in the memory
And the computer program that can be run on the processor, which is characterized in that when the processor executes the computer program
It realizes such as the step of claim 1~7 the method.
9. a kind of computer readable storage medium, the computer-readable recording medium storage has computer program, and feature exists
In realization is such as the step of claim 1~7 the method when the computer program is executed by processor.
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| CN114531314A (en) * | 2022-01-11 | 2022-05-24 | 宁波天擎航天科技有限公司 | Method for reliably transmitting big data in aerospace field, electronic equipment and storage medium |
| CN114531314B (en) * | 2022-01-11 | 2023-12-22 | 宁波天擎航天科技有限公司 | Method for reliably transmitting big data in aerospace field, electronic equipment and storage medium |
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Application publication date: 20190716 |