CN113569535A - NODEJS application based file conversion analysis method and system - Google Patents
NODEJS application based file conversion analysis method and system Download PDFInfo
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Abstract
The application discloses a file conversion analysis method and system based on NODEJS application, and the method comprises the following steps: the method comprises the steps that a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted; the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of a file to be converted; the file conversion analyzer performs corresponding decoding, transcoding and data analysis on the file to be converted to obtain a target file which is successfully converted. Therefore, the H5 end can better support the display of multi-format files, and various low-version format files can be converted into the desired file format; in addition, the user can perform customized expansion according to the requirement, and the flexibility of file conversion is improved.
Description
Technical Field
The invention relates to the technical field of file processing, in particular to a method and a system for converting and analyzing files based on NODEJS application.
Background
Most of the existing file uploading analysis services select a range of file types according to self business requirements or give a file template, and a user can only perform file conversion analysis operation in a limited range, so that the layer analysis logic is limited. Moreover, nowadays, a front end H5 (generation 5 HTML) end cannot friendly display the office file, only supports display of PDF, picture and HTML file contents, but cannot display type files such as word, excel, PPT, and the like, and has a bottleneck for processing files of different versions.
Therefore, how to solve the problem that the front end H5 cannot normally display the office file or the wrong and low-version files is a technical problem to be solved by those skilled in the art.
Disclosure of Invention
In view of this, the present invention provides a method and a system for file conversion and analysis based on NODEJS application, which can enable the H5 end to better support the display of multi-format files, convert various low-version format files into a desired file format, and increase the flexibility of file conversion. The specific scheme is as follows:
a file conversion analysis method based on NODEJS application comprises the following steps:
a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted;
the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of the file to be converted;
and the file conversion analyzer performs corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
Preferably, in the file conversion and parsing method provided in the embodiment of the present invention, the step of identifying the type of the file to be converted includes:
the client analyzes and identifies the type of the file to be converted according to the file stream;
and the client uploads the file to be converted to a specified OSS memory in a binary stream mode according to the type of the file to be converted so that the OSS memory returns the file address stored by the file to be converted.
Preferably, in the above file conversion parsing method provided in the embodiment of the present invention, before the NODE server distributes the file conversion request to the corresponding file conversion parser according to the type of the file to be converted, the method further includes:
and the client sends a file conversion request, the network address and the type of the file to be converted to the NODE server.
Preferably, in the file conversion and parsing method provided in the embodiment of the present invention, the step of performing corresponding decoding, transcoding, and data parsing on the file to be converted by the file conversion parser includes:
the file conversion analyzer acquires the file to be converted from the OSS memory through the network address of the file to be converted;
and the file conversion analyzer performs corresponding decoding, transcoding and data analysis processing on the progressive data of the file to be converted.
Preferably, in the file conversion and analysis method provided in the embodiment of the present invention, after the obtaining of the target file that is successfully converted, the method further includes:
and the file conversion parser uploads the obtained target file to the OSS memory again in a binary stream mode.
Preferably, in the file conversion and parsing method provided in the embodiment of the present invention, while uploading to the OSS memory, the method further includes:
and transmitting the text information of the target file to a Redis server side in a key value pair mode and storing the text information.
Preferably, in the file conversion and analysis method provided in the embodiment of the present invention, after the transmitting and storing the text information of the target file to the Redis server in a form of a key-value pair, the method further includes:
and storing the target file into a database for data backup by adopting a timing task and a distributed queue.
The embodiment of the present invention further provides a file conversion and analysis system for performing file processing by using the file conversion and analysis method provided by the embodiment of the present invention, including:
the client is used for receiving the file to be converted or the network address of the file to be converted and identifying the type of the file to be converted;
the NODE server is used for distributing the file conversion request to a corresponding file conversion analyzer according to the type of the file to be converted;
and the file conversion analyzer is used for carrying out corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
Preferably, in the file conversion and parsing system provided in the embodiment of the present invention, the file conversion and parsing system further includes:
and the OSS memory is used for receiving and storing the file to be converted uploaded in a binary stream form and returning a file address stored by the file to be converted.
Preferably, in the file conversion and parsing system provided in the embodiment of the present invention, the file conversion and parsing system further includes:
the Redis server is used for receiving and storing the text information of the target file transmitted in a key value pair mode;
and the database is used for carrying out data backup on the target file by adopting a timing task and a distributed queue.
According to the technical scheme, the file conversion and analysis method based on the NODEJS application comprises the following steps: the method comprises the steps that a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted; the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of a file to be converted; the file conversion analyzer performs corresponding decoding, transcoding and data analysis on the file to be converted to obtain a target file which is successfully converted.
According to the NODEJS application-based file conversion and analysis method, the file type of the file to be converted is automatically identified, and the file data conversion is analyzed and stored, so that the H5 end can better support the display of multi-format files, and various low-version format files can be converted into the desired file format; in addition, the user can perform customized expansion according to the requirement, and the flexibility of file conversion is improved. In addition, the invention also provides a corresponding system for the file conversion and analysis method, so that the method has higher practicability and the system has corresponding advantages.
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In order to more clearly illustrate the embodiments of the present invention or technical solutions in related arts, the drawings used in the description of the embodiments or related arts will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is a flowchart of a file conversion parsing method according to an embodiment of the present invention;
fig. 2 is a specific flowchart of the file conversion parsing system according to the 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.
The invention provides a file conversion and analysis method based on NODEJS application, which comprises the following steps as shown in figure 1:
s101, a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted;
s102, the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of a file to be converted;
s103, the file conversion analyzer performs corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
It should be noted that NODEJS is a JavaScript running environment based on the Chrome V8 engine, and a development platform for running JavaScript on a server, that is, NODEJS is a development platform for running JavaScript on a server, and can be used to conveniently build a web application with a fast response speed and easy expansion. The NODE server is lightweight and efficient using an event-driven, non-blocking I/O model, and is well suited for running data-intensive real-time applications on distributed devices.
In the file conversion and analysis method provided by the embodiment of the invention, when a user needs to use information office software to analyze a local file, only the file to be converted needs to be uploaded or URL (uniform resource locator) address to request NODEJS service to NODEJS service application, the application can judge the type of the file according to the file stream of the user file, then distribute the file to different file conversion analyzers according to the file type, further perform corresponding operations such as decoding, transcoding, data analysis and the like on the file to be converted, finally convert the file into the format required by the user and return the format to a user side, so that the file to be converted automatically identifies the file type, analyzes the file data and converts and stores the file data, the H5 side can better support the display of multi-format files, and various low-version format files can be converted into the desired file format; in addition, the user can perform customized expansion according to the requirement, and the flexibility of file conversion is improved.
Further, in a specific implementation, in the file conversion and parsing method provided in the embodiment of the present invention, the step S101 of identifying the type of the file to be converted may specifically include: firstly, the client analyzes and identifies the type of a file to be converted according to a file stream; then, the client uploads the file to be converted to a specified OSS (storage file system) memory in a binary stream mode according to the type of the file to be converted, so that the OSS memory returns the address of the file stored in the file to be converted.
Specifically, when step S101 is executed, as shown in fig. 2, the file to be converted or the URL address of the file to be converted is selected to the client, and the client simply analyzes the type and size of the file to be converted according to the file stream; the client uploads the parsed file to a specified OSS memory in the form of binary stream according to the type, and the OSS memory returns the file address of the file storage.
In practical application, an office file prepared in advance locally and containing one million client data can be selected, converted and saved to the client.
In specific implementation, in the file conversion parsing method provided in the embodiment of the present invention, before the step S102 is executed, before the NODE server distributes the file conversion request to the corresponding file conversion parser according to the type of the file to be converted, the method may further include: the client sends a file conversion request, the network address and the type of the file to be converted to the NODE server.
Specifically, when step S102 is executed, as shown in fig. 2, the client transmits the network address of the file to the NODE server, and the NODE server distributes the request to different file conversion parser services according to the file type.
In a specific implementation, in the file conversion and analysis method provided in the embodiment of the present invention, the step S103 of performing, by the file conversion and analysis analyzer, corresponding decoding, transcoding, and data analysis on the file to be converted specifically may include: firstly, a file conversion analyzer acquires a file to be converted from an OSS memory through a network address of the file to be converted; then, the file conversion analyzer performs corresponding decoding, transcoding and data analysis on the progressive data of the file to be converted.
Specifically, when step S103 is executed, since the NODE server has obtained the network address of the file, the file may be downloaded from the OSS memory through the file conversion parser by the network address of the file, and then the file data may be subjected to conversion parsing on data line by line, as shown in fig. 2, which may specifically include the following cases:
the first method is that a PDF Parser (PDF converter) can convert different versions of PDF, such as a PDF low version to a PDF high version, so that a user can use the PDF Parser normally;
second, WORD Parser (WORD converter) can convert the format of (such as. DOC,. DOCX) file, such as WORD and PDF, HTML or XHTML format interchange;
third, the EXCEL Parser (EXCEL converter) can convert the format of (such as. XLS,. XLSX) file, such as the interchange of EXCEL with PDF, HTML or XHTML format;
fourth, the PPT Parser (PPT converter) can convert the format of (such as. PPT,. PPTX) file, such as exchanging PPT with PDF, HTML or XHTML format;
fifth, Other converters, the user can perform custom expansion according to the own service requirements.
In specific implementation, in the file conversion and analysis method provided in the embodiment of the present invention, after the step S103 is executed to obtain the target file that is successfully converted, the method may further include: and the file conversion parser uploads the obtained target file to the OSS memory again in a binary stream mode. It should be noted that, when a conversion failure occurs, the data of the conversion failure may be re-created into a file to generate an error report and upload the error report to the OSS memory. The user can view the data of the conversion success and the error report of the failure through the client.
Further, in a specific implementation, in the file conversion and analysis method provided in the embodiment of the present invention, while uploading to the OSS memory, the method may further include: and transmitting the text information of the target file to a Redis server side in a key value pair mode and storing the text information. After the Redis server saves the text information of the target file, the method may further include: and storing the target file into a database for data backup by adopting a timing task and a distributed queue.
Specifically, as shown in fig. 2, in the process of uploading the OSS server, text information is transmitted to Redis (cache) in parallel, the concurrency problem is solved, and the task queue is stored in the database at regular time for data persistence. The database can adopt MYSQL database or sequenize database, and has reliable transaction support, relation, eager and delayed loading, reading and copying functions and the like. That is, the invention can convert the file and store the converted file to the remote OSS memory, the Redis server and the MYSQL database.
Based on the same inventive concept, the embodiment of the present invention further provides a file conversion and analysis system, and because the principle of solving the problem of the system is similar to that of the aforementioned file conversion and analysis method and is based on NODEJS application, the implementation of the system can refer to the implementation of the file conversion and analysis method, and repeated parts are not described again.
In specific implementation, the file conversion and analysis system provided in the embodiment of the present invention specifically includes:
the client is used for receiving the file to be converted or the network address of the file to be converted and identifying the type of the file to be converted;
the NODE server is used for distributing the file conversion request to the corresponding file conversion analyzer according to the type of the file to be converted;
and the file conversion analyzer is used for carrying out corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
In the file conversion and analysis system provided by the embodiment of the invention, the file type of the file to be converted can be automatically identified, and the data of the file can be analyzed, converted and stored, so that the H5 end can better support the display of multi-format files, and various low-version format files can be converted into the desired file format; in addition, the user can perform customized expansion according to the requirement, and the flexibility of file conversion is improved.
Further, in a specific implementation, in the file conversion and parsing system provided in the embodiment of the present invention, the file conversion and parsing system may further include:
and the OSS memory is used for receiving and storing the file to be converted uploaded in the form of binary stream and returning the file address stored in the file to be converted.
Further, in a specific implementation, in the file conversion and parsing system provided in the embodiment of the present invention, the file conversion and parsing system may further include:
the Redis server is used for receiving and storing the text information of the target file transmitted in the form of key value pairs;
and the database is used for carrying out data backup on the target file by adopting a timing task and a distributed queue. In practical applications, the database may be selected from a MYSQL database or a sequenize database.
For more specific working processes of the above components, reference may be made to corresponding contents disclosed in the foregoing embodiments, and details are not described herein again.
The embodiments are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same or similar parts among the embodiments are referred to each other. For the system disclosed by the embodiment, the description is relatively simple because the system corresponds to the method disclosed by the embodiment, and the relevant points can be referred to the method part for description.
Those of skill would further appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present application.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied directly in hardware, in a software module executed by a processor, or in a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The embodiment of the invention provides a file conversion and analysis method based on NODEJS application, which comprises the following steps: the method comprises the steps that a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted; the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of a file to be converted; the file conversion analyzer performs corresponding decoding, transcoding and data analysis on the file to be converted to obtain a target file which is successfully converted. Therefore, the file type of the file to be converted is automatically identified, and the file data is analyzed, converted and stored, so that the H5 end can better support the display of multi-format files, and various low-version format files can be converted into the desired file format; in addition, the user can perform customized expansion according to the requirement, and the flexibility of file conversion is improved. In addition, the invention also provides a corresponding system for the file conversion and analysis method, so that the method has higher practicability and the system has corresponding advantages.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The method and the system for file conversion and analysis based on NODEJS application provided by the invention are described in detail, a specific example is applied in the method to explain the principle and the implementation mode of the invention, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A file conversion analysis method based on NODEJS application is characterized by comprising the following steps:
a client receives a file to be converted or a network address of the file to be converted and identifies the type of the file to be converted;
the NODE server side distributes a file conversion request to a corresponding file conversion analyzer according to the type of the file to be converted;
and the file conversion analyzer performs corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
2. The method according to claim 1, wherein the step of identifying the type of the file to be converted comprises:
the client analyzes and identifies the type of the file to be converted according to the file stream;
and the client uploads the file to be converted to a specified OSS memory in a binary stream mode according to the type of the file to be converted so that the OSS memory returns the file address stored by the file to be converted.
3. The file conversion parsing method according to claim 2, before the NODE server distributes the file conversion request to the corresponding file conversion parser according to the type of the file to be converted, further comprising:
and the client sends a file conversion request, the network address and the type of the file to be converted to the NODE server.
4. The file conversion and parsing method according to claim 3, wherein the step of performing corresponding decoding, transcoding, and data parsing processing on the file to be converted by the file conversion parser comprises:
the file conversion analyzer acquires the file to be converted from the OSS memory through the network address of the file to be converted;
and the file conversion analyzer performs corresponding decoding, transcoding and data analysis processing on the progressive data of the file to be converted.
5. The method according to claim 4, further comprising, after obtaining the target file that is successfully converted:
and the file conversion parser uploads the obtained target file to the OSS memory again in a binary stream mode.
6. The file conversion parsing method according to claim 5, further comprising, while the uploading to the OSS storage:
and transmitting the text information of the target file to a Redis server side in a key value pair mode and storing the text information.
7. The method according to claim 6, wherein after the transmitting and saving the text information of the target file to the Redis server in the form of key-value pairs, the method further comprises:
and storing the target file into a database for data backup by adopting a timing task and a distributed queue.
8. A file conversion parsing system for file processing using the file conversion parsing method according to any one of claims 1 to 7, comprising:
the client is used for receiving the file to be converted or the network address of the file to be converted and identifying the type of the file to be converted;
the NODE server is used for distributing the file conversion request to a corresponding file conversion analyzer according to the type of the file to be converted;
and the file conversion analyzer is used for carrying out corresponding decoding, transcoding and data analysis processing on the file to be converted to obtain a target file which is successfully converted.
9. The file conversion parsing system of claim 8, further comprising:
and the OSS memory is used for receiving and storing the file to be converted uploaded in a binary stream form and returning a file address stored by the file to be converted.
10. The file conversion parsing system of claim 9, further comprising:
the Redis server is used for receiving and storing the text information of the target file transmitted in a key value pair mode;
and the database is used for carrying out data backup on the target file by adopting a timing task and a distributed queue.
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