CN107526619A - The load mode of format data stream file - Google Patents
The load mode of format data stream file Download PDFInfo
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- CN107526619A CN107526619A CN201710789734.6A CN201710789734A CN107526619A CN 107526619 A CN107526619 A CN 107526619A CN 201710789734 A CN201710789734 A CN 201710789734A CN 107526619 A CN107526619 A CN 107526619A
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F9/00—Arrangements for program control, e.g. control units
- G06F9/06—Arrangements for program control, e.g. control units using stored programs, i.e. using an internal store of processing equipment to receive or retain programs
- G06F9/44—Arrangements for executing specific programs
- G06F9/445—Program loading or initiating
- G06F9/44521—Dynamic linking or loading; Link editing at or after load time, e.g. Java class loading
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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
- G06F16/90—Details of database functions independent of the retrieved data types
- G06F16/95—Retrieval from the web
- G06F16/957—Browsing optimisation, e.g. caching or content distillation
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Abstract
The invention provides a kind of load mode of format data stream file, format data stream file is stored in server, and server is cut to multiple unique files, and unique file includes coding and the page number, format data stream file are loaded onto device end step and are：Associate array is created, Associate array includes document order association and associated with the file page number, and document order association is obtained by each unique file by coding and sorting order, and the association of the file page number corresponds to the acquisition of the unique file page number in being associated by document order；The page number summation for calculating unique file renders acquisition file framework by device end, is downloaded using multithreading and obtains format data stream file；The corresponding unique file page number is obtained according to the format data stream file current page page number, the page preceding P pages and the rear Q pages of page number is calculated, is rendered by device end.File loading velocity can be improved according to the load mode, checked again after completely being downloaded without waiting for format data stream file, thus reduce server synthesis step, mitigate operation burden.
Description
Technical field
The present invention relates to e-file establishment, storage and transmission field technical field, more particularly to format data stream file
Load mode.
Background technology
Server loading format data stream file in the prior art, is needed the list in format data stream file, just first
Each unique file such as text, annex carries out the synthesis of format data stream file, is rendered after the file download after by synthesis, this
Sample building-up process adds server burden, in addition when format data stream file is too big, network is too poor, is easily caused file and beats not
Open, or stand-by period length, extremely influence Consumer's Experience and using effect.And sometimes user need to only check format data stream text
Certification in part, other information be not required to check, now because format data stream file is not downloaded also, can not check written instructions at all,
Cause to drag slow office efficiency.Such as Chinese patent CN104965848A discloses a kind of front end resource loading method and device, its
Middle this method includes：Client obtains and parses the web document of targeted sites, is provided in the web document comprising front end to be loaded
The description information in source；According to the description information of the front end resource to be loaded, judge whether that the front end to be loaded is being locally stored
Resource；If so, then read the front end resource to be loaded and be added into the web document, should if it is not, then being downloaded to server request
Front end resource to be loaded, the front end resource to be loaded of download is added into the web document；Displaying be added into this it is to be loaded before
Hold the web document of resource.In the invention in the case where being locally loading front end resource, when server request is downloaded, download
Process remains integrally to be downloaded to front end resource, such that the overall file download time is grown, and can not in downloading process
Front end resource file is checked, reduces office efficiency.And for example a kind of raising PDF documents of Chinese patent CN103678698A are clear online
Look at the method and apparatus of loading velocity, the attribute information of PDF document is obtained from far-end server, PDF is judged according to attribute information
Whether document is non-linear file；If PDF document is non-linear file, the intersection of PDF document is obtained from far-end server
Concordance list data, the position of each object and size determine the position of the page tree of PDF document and big from cross-index table data
It is small, the page tree of PDF document is obtained from far-end server；Acquired page tree is presented to user, page is carried out to page tree
Face data analysis, position and the size of user's specified page object are extracted from page tree, obtained from far-end server corresponding
Page object data；Resource object data corresponding with acquired page object data and the page are obtained from far-end server
Content stream data；According to selected by acquired page object data, resource object data and content of pages flow data obtain user
The page selected, and it is presented to user.Although it can choose user by the page tree of PDF document during online browse in the invention to specify
Page object, but only user's specified page object is rendered during checking, works as user's needs during checking
, it is necessary to which the page tree that goes back again selects the page again when contextual is checked, aspect does not operate.
The content of the invention
To overcome the problem of burden of server present in prior art is big, file loading velocity is slow, the invention provides
A kind of load mode of format data stream file.
The invention provides a kind of load mode of format data stream file, the format data stream file is stored in service
Format data stream file is cut into multiple unique files by device, server, and unique file includes coding and the page number, the format number
Device end is loaded onto according to stream file, is comprised the following steps that：
Step S1, create Associate array；Associate array includes document order association and associated with the file page number, and document order closes
Connection is obtained by each unique file by coding and sorting order, and the association of the file page number corresponds to the unique file page number in being associated by document order and obtained
Take；
Step S2, the page number summation for calculating all unique files render acquisition file framework, and file framework is by device end
It has been shown that, multithreading download unique file and are stored in device end, obtain format data stream file；
Step S3, format data stream file is rendered by device end；According to current page in access format data stream file
The page number, the page page number in corresponding unique file is obtained, calculate and obtain the page preceding P pages and the rear Q pages of page number, and the wash with watercolours in device end
The corresponding page number information of dye.
Further, unique file download package contains two kinds of results in the step S2：Download successfully and failed download；Download
Successful unique file is filled in file framework correspondence position；The unique file of failed download is shown in file framework correspondence position
Missing page.
Further, the step S2 further comprises that file adjusts, and file adjustment includes replicating and deleted；Specific step
Suddenly it is：
Whether step S21, detection user carry out file adjustment operation in device end, and duplication is operated into step S22, deleted
Division operation enters step S23；
Step S22, replicate unique file and obtain duplication file, replicate file and include coding and the page number, this document coding root
Postponed backward according to unique file coding is replicated, renewal document order association associates with the file page number, into step S24；
Step S23, unique file is deleted, delete the coding and the page number of the unique file, the association of renewal document order and text
The part page number associates, into step S24；
Step S24, document order association associates with the file page number submits server.
Further, download button is included on the missing page.
Further, it is as follows to render key step for the device end：
Step S31, format data stream file is consulted, determines the format data stream file current page page number；
Step S32, being converted to obtain in unique file according to the format data stream current page page number corresponds to the page number, passes through independent text
First P pages and rear Q pages of respective page information that the page number obtains the unique file page number are corresponded in part；
Step S33, first P pages, current page and latter Q pages of page info render in device memory.
Further, the device memory preserves number of pages and fixed, preferably page 3, wherein P=Q=1.
Further, the format data stream page number and the unique file page number conversion concretely comprises the following steps in step s 32：
Step S321, the minimum code unique file page number contrasts format data stream file current page during document order is associated
The page number,
The minimum code unique file page number is less than the format data stream file current page page number, into step S324；
The minimum code unique file page number is more than the format data stream file current page page number, into step S323；
Step S323, the unique file page number is added successively by coding and sorting order, is added the page number summation contrast obtained every time
The format data stream file current page page number, until the page number summation of gained is more than format data stream file current page page for the first time
Code, and the format data stream file current page page number is less than whole unique file page numbers and is added summation, into step S325；
Step S324, the format data stream file current page page number then correspond to the page page number for minimum code unique file；
Step S325, it will add up unique file page number summation and subtract the nearest page number being added obtained by the unique file page number
Value, it is the format data stream file current page page number that the format data stream file current page page number subtracts each other acquired results with the page number numerical value
The page page number in corresponding unique file.
Further, the successful unique file of download is positioned in equipment buffer unit.
Further, the download button is clicked, and re-downloads missing unique file, obtains missing unique file coding
With the page number and update Associate array.
The further access format data stream file detection user carries out formfeed or page turn over operation, redefines formfeed
Or the current page page number after page turning.
Compared with prior art, the beneficial effects of the invention are as follows：
(1) in the server without downloading after being synthesized to unique file in the present invention, can it is independent to unique file under
Carry, downloaded equivalent to by format data stream file piecemeal, so as to reduce server synthesis burden, improve loading velocity.
(2) then it is stopped downloading for the file that is not successfully downloaded in downloading process, to downloading successful independent text
Part is parsed and rendered, and may be such that user still can check format data stream in the case where single unique file does not download successful instance
The successful unique file of download in file, improve office efficiency.
(3) user preserves the spatial cues of page three all the time during format data stream file is browsed, in internal memory, reduces clothes
Business device terminal capabilities consumption, so as to accelerate the response speed of server.
Brief description of the drawings
Fig. 1 is the load mode flow chart of format data stream file；
Fig. 2 is to render processing step flow chart；
Embodiment
Below in conjunction with drawings and examples, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment only to explain the present invention, is not intended to limit the present invention.
Fig. 1 is the load mode flow chart of format data stream file described in the specific embodiment of the invention, described refering to Fig. 1
Format data stream file is preserved in the server, and format data stream file is cut into multiple unique files, independent text by server
Part includes coding and the page number, the format data stream file are loaded onto device end, comprised the following steps that：
Step S1, create Associate array；Associate array includes document order association and associated with the file page number, and document order closes
Connection is obtained by each unique file by coding and sorting order, and the association of the file page number corresponds to the unique file page number in being associated by document order and obtained
Take；
Step S2, the page number summation for calculating all unique files render acquisition file framework, and file framework is by device end
It has been shown that, multithreading download unique file and are stored in device end, obtain format data stream file.
For example, in present embodiment server by format data stream file cut into file A, file B, file C and
Tetra- unique files of file D, four unique files generate corresponding relation and are followed successively by the server：A：{sort：1；page：
1}；B：{sort：2；page：2}；C：{sort：3；page：3}；D：{sort：4；page：4 }, wherein sort is numbers, page
For the page number.Each unique file is associated by coded sequence configuration file order, i.e., [A, B, C, D]；It is corresponding in being associated by document order
The unique file page number configuration file page number associates, i.e., [1,2,3,4], document order association associates with the file page number is built into association
Array, renders according to Associate array and obtains file framework totality, and its file framework totality number of pages is 10.Download successfully independent text
Part is deposited in equipment buffer unit.
Step S3, format data stream file is rendered by device end；According to current page in access format data stream file
The page number, the page page number in corresponding unique file is obtained, calculate and obtain the page preceding P pages and the rear Q pages of page number, and the wash with watercolours in device end
The corresponding page number information of dye.
Alternatively, the unique file in format data stream file can be list, text or annex or other classes
The TRUE format data stream files of type.
Unique file download package contains two kinds of results in the step S2：Download successfully and failed download；Download successfully only
Vertical file is filled in file framework correspondence position；The unique file of failed download shows missing page in file framework correspondence position
Face；Download button is included on missing page, corresponding unique file can be reloaded by clicking on download button, and obtain the unique file
Coding and the page number, renewal Associate array by unique file coding and the page number be respectively placed in corresponding to document order associate and literary
In the association of the part page number.
For example, resolution file A, file B and file D draw each self-corresponding detail page code, wherein file A corresponds to the page number and is
It is 2 that 1, file B, which correspond to the page number, and it is 4 that file D, which corresponds to the page number, and the page number information of three files is preserved to incidence relation array,
The file page number preserved according to number order associates [1,2,4]；Again file C is downloaded, it is 3 that file C, which corresponds to the page number, incidence number
Group, which regenerates, to be changed into [1,2,3,4].
, can be to only without being downloaded after being synthesized to unique file by the load mode, its server in the present embodiment
Vertical file is individually downloaded, and is downloaded equivalent to by format data stream file piecemeal, so as to reduce server synthesis burden.Downloading
During by multiple threads simultaneously download unique file, when the file being not successfully downloaded be present, pass through the download of missing page
Button re-downloads；Parsed and rendered to downloading successful unique file, may be such that user in whole format data stream text
Part, which is not downloaded, can still check the wherein single successful unique file page info of download under successful instance, convenient office, improve
Office efficiency.
It is further preferred that the step S2 further comprises that file adjusts, file adjustment includes replicating and deleted；Tool
Body step is：
Whether step S21, detection user carry out file adjustment operation in device end, and duplication is operated into step S22, deleted
Division operation enters step S23；
Step 522, replicate unique file and obtain duplication file, replicate file and include coding and the page number, this document coding root
Postponed backward according to unique file coding is replicated, renewal document order association associates with the file page number, into step S24；
Step S23, unique file is deleted, delete the coding and the page number of the unique file, the association of renewal document order and text
The part page number associates, into step S24；
Step S24, document order association associates with the file page number submits server.
For example, carrying out duplication operation to unique file B in the present embodiment, duplication file designation is B+, obtains the duplication
Document No. 3 and the page number 2, now each unique file is in format data stream file：A：{sort：1；page：1}；B：{sort：
2；page：2}；B+：{sort：3；page：2 }, C：{sort：, 4；page：3}；D：{sort：5；page：4 }, the file obtained
Order is associated as [A, B, B+, C, D], and the file page number is associated as [1,2,2,3,4].After updating file framework, file population framework
Number of pages becomes page 12, the fileinfo in file framework is carried out into Rendering operations in device end according to Associate array, and will close
Connection array file is committed to server, and operation is updated to format data stream file in server.
Deletion action is carried out to file in embodiment, deletes B files, deletes B reference numbers of a document and the page number, it is now corresponding
Document order related update is [A, C, D], and file page number related update is [1,3,4].Fileinfo control Associate array is entered
Document relationship file is simultaneously submitted to server by row Rendering operations.
It is further preferred that it is stored in the step S3 page number informations obtained in mobile device internal memory, it is preferred that this implementation
According to equipment performance in mode, preserve the page number informations of page 3 in internal memory, i.e. P=Q=1, and this renders and can carried out across independent text
Part renders processing, as shown in Fig. 2 to render key step as follows for the terminal：
Step S31, format data stream file is consulted, determines the format data stream file current page page number；
Step S32, being converted to obtain in unique file according to the format data stream current page page number corresponds to the page number, passes through independent text
First P pages and rear Q pages of respective page information that the page number obtains the unique file page number are corresponded in part；
Step S33, first P pages, current page and latter Q pages of page info render in device memory.
When consulting format data stream file, detect that user carries out formfeed or page turn over operation, now need to redefine
The current page page number after formfeed or page turning.
In the present embodiment, for the user during format data stream file is browsed, the page number of display is only format number
According to the stream file page number, the current page number of format data stream file is changed into page number information in corresponding unique file by calculating, from
And first P pages of current page, latter Q pages of page info are obtained, and by unique file page corresponding to format data stream file current page
Code information, first P pages of the independent page number and rear Q page informations are stored in internal memory, now first P pages and latter Q pages of unique file page
Code corresponds to the page number by being calculated in format data stream file, is rendered by equipment and is consulted for user.When user carries out formfeed
Afterwards, now formfeed is set as current page, recalculates corresponding unique file page number information, and the preceding P of the independent page number
Page and rear Q page information, the page info recalculated is contrasted with the information being stored in before in internal memory, retained if identical,
It will be replaced if different.All the time N pages of spatial cue, preferably N=3 are preserved in internal memory, reduces server terminal performance consumption,
So as to accelerate the response speed of server.
For example, rendering page 1 of A files first, then first page 1 does not have, and is not put into internal memory, directly by current page A texts
Page 1 of part, and page 1 of B files are put into internal memory, now user by the page turning of format data stream file to page 2, detection the
Page 2 (pages 1 of B files) are current page, and page 2 of B files is added in internal memory, and when having translated into page 3, we remove
In internal memory page 1, page 3 of B files is added.Most page 3 in internal memory of fileinfo is remained, greatly reduces terminal
Performance consumption.
It is further preferred that the format data stream page number and the unique file page number conversion specific steps in step s 32
For：
Step S321, step S321, the minimum code unique file page number in incidence relation array is contrasted into format data stream
The file current page page number,
The page page number before the minimum code unique file page number is put less than format data stream file, into step S324；
The minimum code unique file page number is more than the format data stream file current page page number, into step S323；
Step S323, the unique file page number is added successively by coding and sorting order, is added the page number summation contrast obtained every time
The format data stream file current page page number, until the page number summation of gained is more than format data stream file current page page for the first time
Code, and the format data stream file current page page number is less than whole unique file page numbers and is added summation, into step S325；
Step S324, the format data stream file current page page number then correspond to the page page number for minimum code unique file；
Step S325, it will add up unique file page number summation and subtract the nearest page number being added obtained by the unique file page number
Value, it is the format data stream file current page page number that the format data stream file current page page number subtracts each other acquired results with the page number numerical value
The page page number in corresponding unique file.
For example, it is assumed that A files correspond to the page number as page 1 in format data stream file, it is page 3 that B files, which correspond to the page number, C files
The corresponding page number is page 5, then the incidence relation array of A files, B files and C files is [1,3,5], when user browses format data
When page is looked into the distance during stream file to page 5, the format data stream file current page page number is 5, now the A file page numbers of lowest number
It is less than 3 for 1；The B files page number 3 of the A files of lowest number and the second serial number is added up to 4 and is still less than format data stream
The file current page page number 5；Continue, until it is 9 that unique file A, B, C page number are added into summation, for the first time more than format data
The stream file current page page number, now judge that format data stream file page 5 is located in file C, it is total to will add up the unique file page number
It is 4 to subtract the page number numerical value that the C unique files page number 5 obtains with 9, and the page number 5 of the format data stream file current page subtracts the page number
Numerical value 4 obtains 1, thus obtains format data stream file first page for being located at C files of page 5.
The preferred embodiments of the present invention have shown and described in described above, as previously described, it should be understood that the present invention is not office
Be limited to form disclosed herein, be not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and
Environment, and can be changed in the scope of the invention is set forth herein by the technology or knowledge of above-mentioned teaching or association area
It is dynamic., then all should be appended by the present invention and the change and change that those skilled in the art are carried out do not depart from the spirit and scope of the present invention
In scope of the claims.
Claims (10)
1. a kind of load mode of format data stream file, the format data stream file is stored in server, and server is by version
Formula data streaming file cuts into multiple unique files, and unique file includes coding and the page number, the format data stream file loading
To device end, comprise the following steps that：
Step S1, create Associate array；Associate array include document order association associated with the file page number, document order associate by
Each unique file is obtained by coding and sorting order, and the association of the file page number corresponds to the acquisition of the unique file page number in being associated by document order；
Step S2, the page number summation for calculating all unique files render acquisition file framework, and file framework is shown by device end,
Multithreading downloads unique file and is stored in device end, obtains format data stream file；
Step S3, format data stream file is rendered by device end；According to consult format data stream file in the current page page number,
The page page number in corresponding unique file is obtained, calculates and obtains the page preceding P pages and the rear Q pages of page number, and is rendered in device end pair
Answer page number information.
2. the load mode of format data stream file according to claim 1, it is characterised in that：It is independent in the step S2
File download includes two kinds of results：Download successfully and failed download；Download successful unique file and be filled in file framework correspondingly
Position；The unique file of failed download shows missing page in file framework correspondence position.
3. the load mode of format data stream file according to claim 1, it is characterised in that：Enter one in the step S2
Step includes file adjustment, and file adjustment includes replicating and deleted；Concretely comprise the following steps：
Whether step S21, detection user carry out file adjustment operation in device end, and duplication is operated into step S22, deletes behaviour
Work enters step S23；
Step S22, replicate unique file and obtain duplication file, replicate file and include coding and the page number, this document is encoded according to quilt
Replicate unique file coding to postpone backward, renewal document order association associates with the file page number, into step S24；
Step S23, unique file is deleted, delete the coding and the page number of the unique file, the association of renewal document order and file page
Code association, into step S24；
Step S24, document order association associates with the file page number submits server.
4. the load mode of format data stream file according to claim 2, it is characterised in that：Wrapped on the missing page
Containing download button.
5. the load mode of format data stream file according to claim 1, it is characterised in that：The device end renders
Key step is as follows：
Step S31, format data stream file is consulted, determines the format data stream file current page page number；
Step S32, being converted to obtain in unique file according to the format data stream current page page number corresponds to the page number, by unique file
The corresponding page number obtains first P pages and rear Q pages of respective page information of the unique file page number；
Step S33, first P pages, current page and latter Q pages of page info render in device memory.
6. the load mode of format data stream file according to claim 5, it is characterised in that：The device memory preserves
Number of pages is fixed, preferably page 3, wherein P=Q=1.
7. the load mode of format data stream file according to claim 5, it is characterised in that：It is described in step s 32
The format data stream page number and the conversion of the unique file page number concretely comprise the following steps：
Step S321, the minimum code unique file page number contrasts format data stream file current page page during document order is associated
Code,
The minimum code unique file page number is less than the format data stream file current page page number, into step S324；
The minimum code unique file page number is more than the format data stream file current page page number, into step S323；
Step S323, the unique file page number is added successively by coding and sorting order, is added the page number summation contrast format obtained every time
The data streaming file current page page number, until the page number summation of gained is more than the format data stream file current page page number for the first time, and
The format data stream file current page page number is less than whole unique file page numbers and is added summation, into step S325；
Step S324, the format data stream file current page page number then correspond to the page page number for minimum code unique file；
Step S325, it will add up unique file page number summation and subtract the nearest page number numerical value being added obtained by the unique file page number,
The format data stream file current page page number subtracts each other acquired results with the page number numerical value and existed for the format data stream file current page page number
The page page number in corresponding unique file.
8. the load mode of format data stream file according to claim 2, it is characterised in that：The download is successfully only
Vertical file is positioned in equipment buffer unit.
9. the load mode of format data stream file according to claim 4, it is characterised in that：The download button is by point
Hit, re-download missing unique file, obtain missing unique file coding and the page number and update Associate array.
10. the load mode of format data stream file according to claim 5, it is characterised in that：The access format number
According to stream file, detection user carries out formfeed or page turn over operation, redefines the current page page number after formfeed or page turning.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108874486A (en) * | 2018-06-11 | 2018-11-23 | 江苏中威科技软件***有限公司 | Method, terminal and the device with store function of page load |
| CN109522277A (en) * | 2018-10-10 | 2019-03-26 | 江苏中威科技软件***有限公司 | A kind of method and apparatus that multi-format document is read |
| CN111355766A (en) * | 2018-12-20 | 2020-06-30 | 福建福昕软件开发股份有限公司 | Method for rendering PDF (Portable document Format) file loaded on network as required |
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