CN111897780A - OFD document processing method - Google Patents
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- CN111897780A CN111897780A CN202010754692.4A CN202010754692A CN111897780A CN 111897780 A CN111897780 A CN 111897780A CN 202010754692 A CN202010754692 A CN 202010754692A CN 111897780 A CN111897780 A CN 111897780A
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- 238000003672 processing method Methods 0.000 title claims abstract description 12
- 230000000007 visual effect Effects 0.000 claims abstract description 36
- 238000009877 rendering Methods 0.000 claims abstract description 11
- 238000000034 method Methods 0.000 claims description 30
- 238000012545 processing Methods 0.000 claims description 18
- 239000000284 extract Substances 0.000 claims description 13
- 238000004590 computer program Methods 0.000 claims description 8
- 238000012986 modification Methods 0.000 claims description 5
- 230000004048 modification Effects 0.000 claims description 5
- 238000004458 analytical method Methods 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 4
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 241000700605 Viruses Species 0.000 description 1
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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
- G06F16/16—File or folder operations, e.g. details of user interfaces specifically adapted to file systems
- G06F16/168—Details of user interfaces specifically adapted to file systems, e.g. browsing and visualisation, 2d or 3d GUIs
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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
- G06F16/17—Details of further file system functions
- G06F16/172—Caching, prefetching or hoarding of files
Abstract
The invention discloses a processing method of an OFD document, which comprises the following steps: calculating a hash value of the OFD document as a document ID; searching whether non-visual data corresponding to the document ID exists in a cache by using the document ID; if the OFD document does not exist, analyzing the OFD document, extracting non-visual data, and storing the non-visual data in the cache after the non-visual data is serialized; and extracting the non-visual data of the OFD document from the cache, and sending the non-visual data to a client. The processing method of the OFD document provided by the embodiment of the invention can realize the analysis and rendering of the OFD electronic document at the server side, and the client side does not need to download or install any OFD reading software and plug-in, so that the disk or memory space is saved, the OFD document diffusion risk is avoided, the version control of the OFD document is facilitated, the program upgrading is facilitated, the dependence on an operating system and hardware of the client side is avoided, and the uniform effect can be presented on different client sides.
Description
Technical Field
The invention relates to the technical field of electronic document processing, in particular to a processing method of an OFD document.
Background
Compared with paper files, electronic files are more convenient to share, reading is a mode of electronic file sharing, and therefore, demands are made in numerous fields, for example, electronic files and national standards open to the public on the internet, electronic invoices pushed to consumers, electronic certificates issued to citizens on government affairs extranets, regulations and regulations published to employees in intranets, pushed technical documents and the like, as a receiving party, the reading demands are all made, when the documents are in an OFD format, a common solution is that a user downloads and installs OFD reading software or OFD reading plug-in units first, then downloads OFD documents to be read into a local or internal memory, and finishes reading at a client. Each client needs to download and install OFD reading software or plug-in, and needs to download OFD files, the downloading of the software and the files not only occupies disk space, mobile phone capacity or memory, but also the software can be implanted with trojans or viruses, and safety problems are brought to the terminal. Even if the space is large enough and no potential safety hazard exists, if each document needs to be provided with specific reading software, each application needs to be provided with a specific application program, the burden is brought to a computer and a mobile phone, and the user, particularly the user of the mobile phone, is worried. The client also needs to be updated in time when the software is upgraded, and communication cost is increased between the software provider and the reader whether the software is updated or not. When the OFD document is updated, the reader needs to download again, which brings extra burden to the reader, and if the reader fails to update the OFD document in time, information asymmetry is caused.
Disclosure of Invention
The invention aims to provide a processing method of an OFD document. The following presents a simplified summary in order to provide a basic understanding of some aspects of the disclosed embodiments. This summary is not an extensive overview and is intended to neither identify key/critical elements nor delineate the scope of such embodiments. Its sole purpose is to present some concepts in a simplified form as a prelude to the more detailed description that is presented later.
According to an aspect of an embodiment of the present invention, there is provided a method for processing an OFD document, including:
calculating a hash value of the OFD document as a document ID;
searching whether non-visual data corresponding to the document ID exists in a cache by using the document ID;
if the OFD document does not exist, analyzing the OFD document, extracting non-visual data, and storing the non-visual data in the cache after the non-visual data is serialized;
and extracting the non-visual data of the OFD document from the cache, and sending the non-visual data to a client.
Further, the method further comprises:
receiving a page display request and parameters of a user-specified page from a client;
checking whether a picture corresponding to the user-specified page exists in the cache;
if the parameters do not exist, rendering the picture of the page specified by the user according to the parameters and storing the rendered picture in the cache;
and extracting the rendered picture from the cache and sending the rendered picture to a client.
Further, the non-visual data includes the title, author, subject, creation date, modification date, data index, electronic signature of the document, and the number of pages, width and height of each page and rotation angle of the document.
Further, the parameter is client DPI.
Further, the method further comprises:
receiving a request for acquiring the text information in the page from a client;
checking whether text information corresponding to the page exists in the cache;
if the attribute information does not exist, extracting the text and the attribute information of the page, serializing the attribute information and storing the serialized attribute information in a cache;
and extracting the text corresponding to the page and the attribute information thereof from the cache and sending the text and the attribute information to the client.
Further, the attribute information includes unicode values of characters, font names, display sizes, and positions in a page.
According to another aspect of the embodiments of the present invention, there is provided a method for processing an OFD document, including:
the server receives a request for acquiring the text information in the page from the client;
the server side checks whether text information corresponding to the page exists in the cache or not;
if the attribute information does not exist, the server side extracts the text and the attribute information of the page, serializes the attribute information and stores the serialized attribute information in a cache;
the server side extracts the text corresponding to the page from the cache and the attribute information of the text to be sent to the client side;
and after the text and the attribute information thereof are analyzed by the client, the transparent span element is laid out in the webpage.
According to another aspect of the embodiments of the present invention, a processing system for an OFD document is provided, which includes a client and a server, and is configured to implement the processing method for an OFD document described above.
According to another aspect of the embodiments of the present invention, there is provided an electronic apparatus, including a memory, a processor, and a computer program stored on the memory and executable on the processor, wherein the processor executes the program to implement the method for processing an OFD document described above.
According to another aspect of embodiments of the present invention, there is provided a non-transitory computer-readable storage medium having stored thereon a computer program, which is executed by a processor, to implement the method of processing an OFD document described above.
Compared with the prior art, the technical scheme provided by the embodiment of the invention has the following beneficial effects:
the processing method of the OFD document provided by the embodiment of the invention can realize the analysis and rendering of the OFD electronic document at the server side, and the client side does not need to download or install any OFD reading software and plug-in, so that the disk or memory space is saved, the OFD document diffusion risk is avoided, the version control of the OFD document is facilitated, the program upgrading is facilitated, the dependence on an operating system and hardware of the client side is avoided, and the uniform effect can be presented on different client sides.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by the practice of the embodiments of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flowchart of a processing method of an OFD document according to an embodiment of the present application.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. 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.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
As shown in fig. 1, an embodiment of the present application provides a method for processing an OFD document, including:
1) and the client side makes an OFD document reading request.
2) The server side calculates the hash value of the OFD document as a document ID.
3) And the server side searches whether the non-visual data corresponding to the document ID exists in the cache by using the document ID, and if so, the step 5) is skipped.
4) And the server analyzes the document, extracts non-visual data, serializes the non-visual data and stores the serialized data in a cache. The non-visual data includes metadata information such as the title, author, subject, creation date, modification date, etc. of the document, and page information such as data index, electronic signature, and page number of the document, width and height of each page, and rotation angle.
5) And the server side extracts the non-visual data of the document from the cache and sends the non-visual data to the client side.
6) The client side sends a page display request of a page specified by a user to the server side after receiving the non-visual data, and provides parameters such as DPI (Dots Per Inch) of the client side.
7) The server side checks whether the cache has a picture of the DPI corresponding to the page, and if so, the step is skipped to the step 9).
8) And the server side renders the picture of the page according to the DPI and stores the picture in the cache.
9) And the server extracts the DPI picture corresponding to the page from the cache and sends the DPI picture to the client for display.
If there is a text operation requirement in the application scenario, the method for processing the OFD document further includes:
10) and a request for obtaining the text information operation in the page is sent to the server.
11) The server side checks whether the text information corresponding to the page exists in the cache or not, and if so, the step is skipped to the step 13).
12) The server side extracts all texts and attribute information of the page, including information such as unicode values, font names, display sizes and positions in the page of characters, and stores the information in a cache after serializing the information.
13) And the server extracts the text and the attribute information corresponding to the page from the cache and sends the text and the attribute information to the client.
14) After the client analyzes the text information, the transparent span element is arranged in the webpage, so that the effect of selecting and copying the text is achieved.
Taking the example of obtaining a certain section of important text content in an open electronic file, a specific implementation manner of a processing method for an OFD document according to another embodiment of the present application is described:
s1, logging in the electronic file website, without downloading the corresponding electronic file and the corresponding OFD reading software, clicking the electronic file link to be read, and then the reading client will send the reading request to the server.
S2, if the file is not read by anyone, the server end does not store any information of the file, at this time, the server end will analyze the file, extract the metadata, data index, electronic signature and page information of the file, and store the abstract value of the file as index for the subsequent consultant to use; if the archive is recalled once, the server side does not need to analyze, and the non-visual information of the archive file can be found through the abstract of the archive file. And the server side returns the non-visual information obtained by analysis or search to the client side.
S3, the client side puts forward a request for rendering a certain page to the server side according to the DPI of the display screen, if the page is not called on the DPI screen, the server side renders the page according to the DPI, feeds the page back to the client side and stores the page for subsequent calling; if the page is called and read on the screen of the DPI, the server side does not need to render any more, and the rendered result is directly fed back to the client side. And the client displays the acquired picture on a screen.
S4, because the file is looked up and has the need of content search or copy, the client end requests the server end to obtain the full text information of the file, if the page is never called, the server end extracts all the text information in the file to be serialized and then feeds back to the client end, and at the same time, the text information is stored in the server end; if the page is called, the server only needs to feed back the text information of the archive file stored previously to the client. The client transparently places each text in a corresponding location. The user inputs the text content to be searched, and then the corresponding position can be indexed and copied.
Another embodiment of the present application provides a method for processing an OFD document, including:
calculating a hash value of the OFD document as a document ID;
searching whether non-visual data corresponding to the document ID exists in a cache by using the document ID;
if the OFD document does not exist, analyzing the OFD document, extracting non-visual data, and storing the non-visual data in the cache after the non-visual data is serialized;
extracting non-visual data of the OFD document from the cache, and sending the non-visual data to a client;
receiving a page display request and parameters of a user-specified page from a client;
checking whether a picture corresponding to the user-specified page exists in the cache;
if the parameters do not exist, rendering the picture of the page specified by the user according to the parameters and storing the rendered picture in the cache;
and extracting the rendered picture from the cache and sending the rendered picture to a client.
The non-visual data includes the title, author, subject, creation date, modification date, data index, electronic signature of the document, and the number of pages, width and height of each page and rotation angle of the document.
The parameter is client DPI.
The method further comprises the following steps:
receiving a request for acquiring the text information in the page from a client;
checking whether text information corresponding to the page exists in the cache;
if the attribute information does not exist, extracting the text and the attribute information of the page, serializing the attribute information and storing the serialized attribute information in a cache;
and extracting the text corresponding to the page and the attribute information thereof from the cache and sending the text and the attribute information to the client.
The attribute information includes a unicode value of a character, a font name, a display size, and a position in a page.
Another embodiment of the present application further provides a method for processing an OFD document, including:
the server receives a request for acquiring the text information in the page from the client;
the server side checks whether text information corresponding to the page exists in the cache or not;
if the attribute information does not exist, the server side extracts the text and the attribute information of the page, serializes the attribute information and stores the serialized attribute information in a cache;
the server side extracts the text corresponding to the page from the cache and the attribute information of the text to be sent to the client side;
and after the text and the attribute information thereof are analyzed by the client, the transparent span element is laid out in the webpage.
Another embodiment of the present application further provides a processing system for an OFD document, which is characterized by including a client and a server, and is configured to implement the processing method for an OFD document described above.
Another embodiment of the present application further provides an electronic device, which includes a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the method for processing an OFD document described above.
Another embodiment of the present application also provides a non-transitory computer-readable storage medium on which a computer program is stored, the program being executed by a processor to implement the method for processing an OFD document described above.
According to the method, the analysis and rendering of the OFD electronic document are moved from the client to the server, the client does not need to download and install OFD reading software or plug-in, and the OFD electronic document does not need to be downloaded to the local. The client does not need to download or install any OFD reading software and plug-in, so that the disk space can be saved, and no safety risk exists; the client does not need to download the OFD electronic document, so that the disk or memory space is saved, the OFD document diffusion risk is avoided, and the version control of the OFD document is facilitated; the analysis and rendering of the OFD document are realized at a server side, so that the program is convenient to upgrade; the analysis and the rendering of the OFD document are carried out at the server side, so that the operation system and hardware of the client side are independent, a uniform effect can be presented on different client sides, multiple reading requests of the same DPI can be completed only by one-time analysis and rendering, and the rendering efficiency is improved.
It should be noted that:
the algorithms and displays presented herein are not inherently related to any particular computer, virtual machine, or other apparatus. Various general purpose devices may be used with the teachings herein. The required structure for constructing such a device will be apparent from the description above. Moreover, the present invention is not directed to any particular programming language. It is appreciated that a variety of programming languages may be used to implement the teachings of the present invention as described herein, and any descriptions of specific languages are provided above to disclose the best mode of the invention.
In the description provided herein, numerous specific details are set forth. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.
Similarly, it should be appreciated that in the foregoing description of exemplary embodiments of the invention, various features of the invention are sometimes grouped together in a single embodiment, figure, or description thereof for the purpose of streamlining the disclosure and aiding in the understanding of one or more of the various inventive aspects. However, the disclosed method should not be interpreted as reflecting an intention that: that the invention as claimed requires more features than are expressly recited in each claim. Rather, as the following claims reflect, inventive aspects lie in less than all features of a single foregoing disclosed embodiment. Thus, the claims following the detailed description are hereby expressly incorporated into this detailed description, with each claim standing on its own as a separate embodiment of this invention.
Those skilled in the art will appreciate that the modules in the device in an embodiment may be adaptively changed and disposed in one or more devices different from the embodiment. The modules or units or components of the embodiments may be combined into one module or unit or component, and furthermore they may be divided into a plurality of sub-modules or sub-units or sub-components. All of the features disclosed in this specification (including any accompanying claims, abstract and drawings), and all of the processes or elements of any method or apparatus so disclosed, may be combined in any combination, except combinations where at least some of such features and/or processes or elements are mutually exclusive. Each feature disclosed in this specification (including any accompanying claims, abstract and drawings) may be replaced by alternative features serving the same, equivalent or similar purpose, unless expressly stated otherwise.
Furthermore, those skilled in the art will appreciate that while some embodiments described herein include some features included in other embodiments, rather than other features, combinations of features of different embodiments are meant to be within the scope of the invention and form different embodiments. For example, in the following claims, any of the claimed embodiments may be used in any combination.
The various component embodiments of the invention may be implemented in hardware, or in software modules running on one or more processors, or in a combination thereof. Those skilled in the art will appreciate that a microprocessor or Digital Signal Processor (DSP) may be used in practice to implement some or all of the functions of some or all of the components in the creation apparatus of a virtual machine according to embodiments of the present invention. The present invention may also be embodied as apparatus or device programs (e.g., computer programs and computer program products) for performing a portion or all of the methods described herein. Such programs implementing the present invention may be stored on computer-readable media or may be in the form of one or more signals. Such a signal may be downloaded from an internet website or provided on a carrier signal or in any other form.
It should be noted that the above-mentioned embodiments illustrate rather than limit the invention, and that those skilled in the art will be able to design alternative embodiments without departing from the scope of the appended claims. In the claims, any reference signs placed between parentheses shall not be construed as limiting the claim. The word "comprising" does not exclude the presence of elements or steps not listed in a claim. The word "a" or "an" preceding an element does not exclude the presence of a plurality of such elements. The invention may be implemented by means of hardware comprising several distinct elements, and by means of a suitably programmed computer. In the unit claims enumerating several means, several of these means may be embodied by one and the same item of hardware. The usage of the words first, second and third, etcetera do not indicate any ordering. These words may be interpreted as names.
It should be understood that, although the steps in the flowcharts of the figures are shown in order as indicated by the arrows, the steps are not necessarily performed in order as indicated by the arrows. The steps are not performed in the exact order shown and may be performed in other orders unless explicitly stated herein. Moreover, at least a portion of the steps in the flow chart of the figure may include multiple sub-steps or multiple stages, which are not necessarily performed at the same time, but may be performed at different times, which are not necessarily performed in sequence, but may be performed alternately or alternately with other steps or at least a portion of the sub-steps or stages of other steps.
The above-mentioned embodiments only express the embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A method for processing an OFD document, comprising:
calculating a hash value of the OFD document as a document ID;
searching whether non-visual data corresponding to the document ID exists in a cache by using the document ID;
if the OFD document does not exist, analyzing the OFD document, extracting non-visual data, and storing the non-visual data in the cache after the non-visual data is serialized;
and extracting the non-visual data of the OFD document from the cache, and sending the non-visual data to a client.
2. The method of claim 1, further comprising:
receiving a page display request and parameters of a user-specified page from a client;
checking whether a picture corresponding to the user-specified page exists in the cache;
if the parameters do not exist, rendering the picture of the page specified by the user according to the parameters and storing the rendered picture in the cache;
and extracting the rendered picture from the cache and sending the rendered picture to a client.
3. The method of claim 1, wherein the non-visual data includes a title, author, subject, creation date, modification date, data index, electronic signature of the document, and number of pages, width and height of each page, and rotation angle of the document.
4. The method of claim 2, wherein the parameter is client DPI.
5. The method of claim 2, further comprising:
receiving a request for acquiring the text information in the page from a client;
checking whether text information corresponding to the page exists in the cache;
if the attribute information does not exist, extracting the text and the attribute information of the page, serializing the attribute information and storing the serialized attribute information in a cache;
and extracting the text corresponding to the page and the attribute information thereof from the cache and sending the text and the attribute information to the client.
6. The method of claim 5, wherein the attribute information comprises unicode values of characters, font names, display sizes, and positions in pages.
7. A method for processing an OFD document, comprising:
the server receives a request for acquiring the text information in the page from the client;
the server side checks whether text information corresponding to the page exists in the cache or not;
if the attribute information does not exist, the server side extracts the text and the attribute information of the page, serializes the attribute information and stores the serialized attribute information in a cache;
the server side extracts the text corresponding to the page from the cache and the attribute information of the text to be sent to the client side;
and after the text and the attribute information thereof are analyzed by the client, the transparent span element is laid out in the webpage.
8. An OFD document processing system, comprising a client and a server, for implementing the OFD document processing method according to any one of claims 1 to 7.
9. An electronic device, comprising a memory, a processor, and a computer program stored on the memory and executable on the processor, the processor executing the program to implement the method of processing the OFD document according to any one of claims 1 to 7.
10. A non-transitory computer-readable storage medium having stored thereon a computer program, characterized in that the program is executed by a processor to implement the method of processing an OFD document according to any one of claims 1 to 7.
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| CN107491523A (en) * | 2017-08-17 | 2017-12-19 | 三星（中国）半导体有限公司 | The method and device of data storage object |
| CN107528695A (en) * | 2017-09-14 | 2017-12-29 | 合肥拓普网络系统工程有限责任公司 | It is a kind of based on the electric endorsement method for including summary info Quick Response Code |
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| CN109614596A (en) * | 2018-12-13 | 2019-04-12 | 税友软件集团股份有限公司 | A kind of electronic note processing method, device and system |
| CN110674432A (en) * | 2019-09-09 | 2020-01-10 | 中国平安财产保险股份有限公司 | Second-level caching method and device and computer readable storage medium |
| CN110765385A (en) * | 2019-10-24 | 2020-02-07 | 北京华宇信息技术有限公司 | Method and system for browsing OFD document webpage end |
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Application publication date: 20201106 |