CN112953983A - SFTP transmission method and device - Google Patents
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- CN112953983A CN112953983A CN201911255903.3A CN201911255903A CN112953983A CN 112953983 A CN112953983 A CN 112953983A CN 201911255903 A CN201911255903 A CN 201911255903A CN 112953983 A CN112953983 A CN 112953983A
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- 238000004458 analytical method Methods 0.000 claims description 21
- 238000004590 computer program Methods 0.000 claims description 16
- 230000000295 complement effect Effects 0.000 claims description 2
- 238000012545 processing Methods 0.000 abstract description 8
- 238000010586 diagram Methods 0.000 description 10
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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]
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L43/00—Arrangements for monitoring or testing data switching networks
- H04L43/12—Network monitoring probes
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Abstract
The invention provides an SFTP transmission method and a device, wherein the method comprises the following steps: acquiring file information to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information; acquiring a file storage directory of a target server according to the target server information; performing data sniffing on a target server according to a file identifier to be transmitted and a file storage directory; and when the data sniffing result shows that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on the SFTP. According to the method, the target server is detected before file transmission, the file is sent to the target server after the target server is determined to have no file to be transmitted, repeated transmission of the file is avoided on the premise that the SFTP transmission safety is not influenced, the data volume of the transmitted file is reduced, the file transmission time is shortened, the I/O utilization rate of the server is also reduced, and the processing performance of the target server is improved.
Description
Technical Field
The present invention relates to the field of data transmission technologies, and in particular, to a SFTP transmission method and apparatus.
Background
In the existing SFTP (secure File Transfer Protocol) transmission technical scheme, no matter how optimized a code layer is when a large-data-volume File is transmitted, the transmission time is increased and the hardware performance is reduced due to the large data volume of the transmitted File.
Disclosure of Invention
The embodiment of the invention provides an SFTP transmission method, which is used for reducing the data volume of a transmission file and shortening the file transmission time and comprises the following steps:
acquiring file information to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
acquiring a file storage directory of a target server according to the target server information;
performing data sniffing on the target server according to the file identifier to be transmitted and the file storage directory;
and when the data sniffing result shows that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on SFTP.
The embodiment of the present invention further provides an SFTP transmission apparatus, configured to reduce the data size of a transmission file and shorten the file transmission time, where the apparatus includes:
the information acquisition module is used for acquiring the information of the file to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
the file storage directory acquisition module is used for acquiring a file storage directory of the target server according to the target server information;
the data sniffing module is used for carrying out data sniffing on the target server according to the file identifier to be transmitted and the file storage directory;
and the file sending module is used for sending the file to be transmitted to the target server based on SFTP when the data sniffing result shows that the file to be transmitted does not exist on the target server.
The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the SFTP transmission method is implemented.
An embodiment of the present invention also provides a computer-readable storage medium storing a computer program for executing the SFTP transmission method.
In the embodiment of the invention, the file information to be transmitted is acquired; the file information to be transmitted comprises a file identifier to be transmitted and target server information; acquiring a file storage directory of a target server according to the target server information; performing data sniffing on a target server according to a file identifier to be transmitted and a file storage directory; when the data sniffing result indicates that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on SFTP; before file transmission, a target server for receiving files is detected, the files are sent to the target server after the target server is determined to be free from the files to be transmitted, on the premise that the SFTP transmission safety is not affected, repeated transmission of the files is avoided, the data volume of the transmitted files is reduced, the file transmission time is shortened, the I/O utilization rate of the server is also reduced, and the processing performance of the target server is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic diagram of an SFTP transmission method in an embodiment of the present invention.
Fig. 2 is a flowchart illustrating an implementation of step 103 in an embodiment of the present invention.
Fig. 3 is a block diagram of an SFTP transmission apparatus according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides an SFTP transmission method, configured to reduce the data size of a file to be transmitted and shorten the file transmission time, as shown in fig. 1, the method includes:
step 101: acquiring file information to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
step 102: acquiring a file storage directory of a target server according to the target server information;
step 103: performing data sniffing on a target server according to a file identifier to be transmitted and a file storage directory;
step 104: and when the data sniffing result shows that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on the SFTP.
As can be seen from fig. 1, in the embodiment of the present invention, information of a file to be transmitted is obtained; the file information to be transmitted comprises a file identifier to be transmitted and target server information; acquiring a file storage directory of a target server according to the target server information; performing data sniffing on a target server according to a file identifier to be transmitted and a file storage directory; when the data sniffing result indicates that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on SFTP; before file transmission, a target server for receiving files is detected, the files are sent to the target server after the target server is determined to be free from the files to be transmitted, on the premise that the SFTP transmission safety is not affected, repeated transmission of the files is avoided, the data volume of the transmitted files is reduced, the file transmission time is shortened, the I/O utilization rate of the server is also reduced, and the processing performance of the target server is improved.
In specific implementation, file information to be transmitted is first acquired, where the file information to be transmitted includes a file identifier to be transmitted and target server information, the file identifier to be transmitted includes, for example, a file name to be transmitted, and the target server may be, for example, a receiver in file remote transmission based on SFTP.
And after the information of the file to be transmitted is acquired, acquiring a file storage directory of the target server according to the acquired information of the target server. In a specific embodiment, the obtained target server information may include, for example, related information such as a name and an address of the target server. And determining a target server according to the name, address and other related information of the target server, sending a file storage directory calling instruction to the target server, and acquiring the called file storage directory of the target server.
After the file storage directory of the target server is obtained, data sniffing is performed on the target server according to the file identifier to be transmitted and the file storage directory, and a specific process, as shown in fig. 2, includes:
step 201: scanning a file storage directory according to the name of a file to be transmitted to obtain a scanning log;
step 202: analyzing the scanning log to obtain an analysis result;
step 203: judging whether the file to be transmitted exists on the target server according to the analysis result:
step 204: when the characters of the name of the file to be transmitted do not exist in the scanning log in the analysis result, judging that the file to be transmitted does not exist on the target server;
step 205: and when the characters of the name of the file to be transmitted exist in the scanning log in the analysis result, judging that the file to be transmitted exists on the target server.
In a specific embodiment, the step 201 can be implemented by, for example, ls (list dir, listing the file information below the directory) scanning in the Linux command, and can be implemented by, for example, the following program codes:
sftp _ file _ exist xxx (filename to be detected) >/dev/null 2> $ errlog
bytes＝$(wc-c$errlog|awk'{print$1}')
((bytes＝$bytes-27))
Wherein sftp _ file _ exist is a function,/dev/null represents a black hole device in Linux for discarding unnecessary data output, 2 represents extracting output error information, and $ error represents outputting error information to an error log file.
When step 203 is implemented, if the file to be transmitted exists on the target server, the value of the variable bytes is 0; if the value of the variable bytes is not 0, it indicates that the target server does not have a file to be transmitted.
That is, in the above embodiment, when the number of characters of $ errlog is 27, it indicates that the file to be transmitted already exists on the target server, otherwise, the file to be transmitted does not exist on the target server.
It can be understood that the above implementation code for performing data sniffing is only an example, and the code may be modified during implementation, or other methods may be adopted to perform data sniffing on a target server according to a file identifier to be transmitted and a file storage directory, and these codes or methods all fall within the protection scope of the present invention, and are not described in detail in the embodiments. And when the data sniffing result indicates that the file to be transmitted exists on the target server, the file to be transmitted is not sent to the target server.
And when the data sniffing result shows that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on the SFTP.
In a specific embodiment, when the data sniffing result indicates that the file to be transmitted does not exist on the target server, the file to be transmitted is acquired, and the file to be transmitted is sent to the target server based on the SFTP.
However, there may be a case where the file to be transmitted cannot be acquired, so the SFTP transmission method shown in fig. 1 further includes:
when the acquisition duration of the file to be transmitted exceeds the preset duration, sending a file acquisition failure alarm to the client;
and receiving the file to be transmitted which is manually and additionally recorded and sent by the client.
By receiving the files to be transmitted which are manually and additionally recorded and sent by the client, transmission errors caused by file acquisition failure are avoided.
A specific example is given below to illustrate how embodiments of the present invention perform SFTP transmission. This example is a transmission script developed by applying the SFTP transmission method described above.
In the prior art, SFTP transmission is a transmission method often used in daily script development. Due to the fact that flexibility of script development is high, although difficulty of SFTP transmission is low, joint debugging time is often more than development time in the early stage in the later stage. In the specific embodiment of the invention, a script basic framework template is developed, and the specific transmission can be applicable only by modifying the setting parameters in the configuration file. For example, the central row needs to return the result to each region after gathering and summarizing the data of each region. The identification of each region can be written in the configuration file. But the code of the script basic framework template can be the same and only written in the configuration file for the difference to ensure the high availability of the script template. Therefore, the early development time and the later joint debugging time are reduced, and the running reliability of the script is greatly improved.
In the specific embodiment, the time-limited control input mode is set in the script, so that when the file to be transmitted is acquired, the file can be acquired manually or automatically, and when the automatic acquisition fails, the number is complemented manually, so that the transmission error caused by the failure of file acquisition is avoided. The specific implementation process is that when the script runs automatically, a timing setting is provided to wait for some parameters input by the user, and because the script runs automatically and does not have manual intervention, the script does not wait all the time, but sets a waiting time duration, for example, to 10 seconds, during interaction. The specific implementation code is as follows:
Read-t timeout-p“pls input something:”input
if the user inputs, the variable input is endowed with the value input by the user; if the automatic operation is performed, the variable input is empty. And then, whether manual intervention is needed or not is determined by judging whether the variable input is empty or not.
SFTP transmission is carried out by utilizing the developed transmission script, and firstly, file information to be transmitted is obtained; the file information to be transmitted comprises a file identifier to be transmitted and target server information, wherein the file identifier to be transmitted comprises a file name to be transmitted; in this specific example, the names of the files to be transmitted are File1, File2 and File3, and the target server information includes the name of the target server ERP-SQL and the IP address 192.168.10.61 of the target server.
And sending a file storage directory calling instruction to the target server according to the name ERP-SQL of the target server and the IP address 192.168.10.61 of the target server, acquiring the called file storage directory of the target server, and performing data sniffing on the target server. According to the name of the file to be transmitted, ls scanning is carried out on the file storage directory to obtain a scanning log, analysis is carried out to obtain an analysis result, and whether the file to be transmitted exists on the target server or not is judged according to the analysis result:
when the characters of the name of the file to be transmitted do not exist in the scanning log in the analysis result, judging that the file to be transmitted does not exist on the target server;
and when the characters of the name of the file to be transmitted exist in the scanning log in the analysis result, judging that the file to be transmitted exists on the target server.
After data sniffing is carried out, if the File1 to be transmitted exists on the target server and the files 2 and 3 to be transmitted do not exist, the files 2 and 3 to be transmitted are sent to the target server based on SFTP, and the data package of the File1 to be transmitted is discarded or temporarily stored.
Based on the same inventive concept, embodiments of the present invention further provide an SFTP transmission apparatus, where the principle of the problem solved by the SFTP transmission apparatus is similar to that of the SFTP transmission method, so that the implementation of the SFTP transmission apparatus may refer to the implementation of the SFTP transmission method, and repeated details are not repeated, and the specific structure is shown in fig. 3:
an information obtaining module 301, configured to obtain information of a file to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
a file storage directory obtaining module 302, configured to obtain a file storage directory of the target server according to the target server information;
the data sniffing module 303 is configured to perform data sniffing on the target server according to the file identifier to be transmitted and the file storage directory;
and the file sending module 304 is configured to send the file to be transmitted to the target server based on the SFTP when the data sniffing result indicates that the file to be transmitted does not exist on the target server.
In a specific embodiment, the file identifier to be transmitted includes a file name to be transmitted, and the data sniffing module 303 is specifically configured to:
scanning a file storage directory according to the name of a file to be transmitted to obtain a scanning log;
analyzing the scanning log to obtain an analysis result;
judging whether the file to be transmitted exists on the target server according to the analysis result:
when the characters of the name of the file to be transmitted do not exist in the scanning log in the analysis result, judging that the file to be transmitted does not exist on the target server;
and when the characters of the name of the file to be transmitted exist in the scanning log in the analysis result, judging that the file to be transmitted exists on the target server.
In specific implementation, the file sending module 304 is specifically configured to: and when the data sniffing result shows that the file to be transmitted does not exist on the target server, acquiring the file to be transmitted, and sending the file to be transmitted to the target server based on the SFTP.
The SFTP transmission apparatus in the specific embodiment further includes, on the basis of fig. 3: a manual number complement module to:
when the acquisition duration of the file to be transmitted exceeds the preset duration, sending a file acquisition failure alarm to the client;
and receiving the file to be transmitted which is manually and additionally recorded and sent by the client.
The embodiment of the present invention further provides a computer device, which includes a memory, a processor, and a computer program stored in the memory and capable of running on the processor, and when the processor executes the computer program, the SFTP transmission method is implemented.
An embodiment of the present invention further provides a computer-readable storage medium, in which a computer program for executing the SFTP transmission method is stored.
In summary, the SFTP transmission method and apparatus provided in the embodiments of the present invention have the following advantages:
acquiring file information to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information; acquiring a file storage directory of a target server according to the target server information; performing data sniffing on a target server according to a file identifier to be transmitted and a file storage directory; when the data sniffing result indicates that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on SFTP; before file transmission, a target server for receiving files is detected, the files are sent to the target server after the target server is determined to be free from the files to be transmitted, on the premise that the SFTP transmission safety is not affected, repeated transmission of the files is avoided, the data volume of the transmitted files is reduced, the file transmission time is shortened, the I/O utilization rate of the server is also reduced, and the processing performance of the target server is improved. When the acquisition duration of the file to be transmitted exceeds the preset duration, sending a file acquisition failure alarm to the client; by receiving the files to be transmitted which are manually and additionally recorded and sent by the client, transmission errors caused by file acquisition failure are avoided.
As will be appreciated by one skilled in the art, embodiments of the present invention may be provided as a method, apparatus, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment or an embodiment combining software and hardware aspects. Furthermore, the present invention may take the form of a computer program product embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, and the like) having computer-usable program code embodied therein.
The present invention is described with reference to flowchart illustrations and/or block diagrams of methods, apparatus and computer program products according to embodiments of the invention. It will be understood that each flow and/or block of the flow diagrams and/or block diagrams, and combinations of flows and/or blocks in the flow diagrams and/or block diagrams, can be implemented by computer program instructions. These computer program instructions may be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing apparatus to function in a particular manner, such that the instructions stored in the computer-readable memory produce an article of manufacture including instruction means which implement the function specified in the flowchart flow or flows and/or block diagram block or blocks.
These computer program instructions may also be loaded onto a computer or other programmable data processing apparatus to cause a series of operational steps to be performed on the computer or other programmable apparatus to produce a computer implemented process such that the instructions which execute on the computer or other programmable apparatus provide steps for implementing the functions specified in the flowchart flow or flows and/or block diagram block or blocks.
The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the embodiment of the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (11)
1. An SFTP transmission method, comprising:
acquiring file information to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
acquiring a file storage directory of a target server according to the target server information;
performing data sniffing on the target server according to the file identifier to be transmitted and the file storage directory;
and when the data sniffing result shows that the file to be transmitted does not exist on the target server, the file to be transmitted is sent to the target server based on SFTP.
2. The method of claim 1, wherein the file identifier to be transmitted comprises a file name to be transmitted;
according to the file identification to be transmitted and the file storage directory, data sniffing is carried out on the target server, and the method comprises the following steps:
scanning the file storage directory according to the name of the file to be transmitted to obtain a scanning log;
analyzing the scanning log to obtain an analysis result;
and judging whether the file to be transmitted exists on the target server according to the analysis result:
when the characters of the name of the file to be transmitted do not exist in the scanning log in the analysis result, judging that the file to be transmitted does not exist on a target server;
and when the characters of the name of the file to be transmitted exist in the scanning log in the analysis result, judging that the file to be transmitted exists on the target server.
3. The method of claim 1, wherein sending the file to be transmitted to the target server based on SFTP when the result of the data sniffing is that the file to be transmitted does not exist on the target server comprises:
and when the data sniffing result shows that the file to be transmitted does not exist on the target server, acquiring the file to be transmitted, and sending the file to be transmitted to the target server based on SFTP.
4. The method of claim 3, further comprising:
when the acquisition duration of the file to be transmitted exceeds the preset duration, sending a file acquisition failure alarm to the client;
and receiving the file to be transmitted which is manually and additionally recorded and sent by the client.
5. The method of claim 1, further comprising:
and when the data sniffing result indicates that the file to be transmitted exists on the target server, the file to be transmitted is not sent to the target server.
6. An SFTP transmission apparatus, comprising:
the information acquisition module is used for acquiring the information of the file to be transmitted; the file information to be transmitted comprises a file identifier to be transmitted and target server information;
the file storage directory acquisition module is used for acquiring a file storage directory of the target server according to the target server information;
the data sniffing module is used for carrying out data sniffing on the target server according to the file identifier to be transmitted and the file storage directory;
and the file sending module is used for sending the file to be transmitted to the target server based on SFTP when the data sniffing result shows that the file to be transmitted does not exist on the target server.
7. The apparatus of claim 6, wherein the file identifier to be transmitted comprises a file name to be transmitted;
the data sniffing module is specifically configured to:
scanning the file storage directory according to the name of the file to be transmitted to obtain a scanning log;
analyzing the scanning log to obtain an analysis result;
and judging whether the file to be transmitted exists on the target server according to the analysis result:
when the characters of the name of the file to be transmitted do not exist in the scanning log in the analysis result, judging that the file to be transmitted does not exist on a target server;
and when the characters of the name of the file to be transmitted exist in the scanning log in the analysis result, judging that the file to be transmitted exists on the target server.
8. The apparatus of claim 6, wherein the file sending module is specifically configured to:
and when the data sniffing result shows that the file to be transmitted does not exist on the target server, acquiring the file to be transmitted, and sending the file to be transmitted to the target server based on SFTP.
9. The apparatus of claim 7, further comprising: a manual number complement module to:
when the acquisition duration of the file to be transmitted exceeds the preset duration, sending a file acquisition failure alarm to the client;
and receiving the file to be transmitted which is manually and additionally recorded and sent by the client.
10. A computer device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, wherein the processor implements the method of any one of claims 1 to 5 when executing the computer program.
11. A computer-readable storage medium, characterized in that the computer-readable storage medium stores a computer program for executing the method of any one of claims 1 to 5.
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