CN108984676B - Electronic book cross-terminal self-adaptive display system and method based on XML - Google Patents
Electronic book cross-terminal self-adaptive display system and method based on XML Download PDFInfo
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Abstract
The invention discloses an electronic book cross-terminal self-adaptive display system and method based on XML, which are mainly considered from the aspect of format, and take XML technology as a basis to arrange digital content, can manufacture different formats aiming at different content subjects, further realize automatic adaptation of the content of an electronic book when the content of the electronic book is presented on different reading devices through a response type layout principle, can not only self-adapt the same content to different terminal devices, but also effectively arrange digital resources, facilitate content recombination, multi-dimensional deep mining and personalized publishing, bring great convenience for the work of publishers, provide good reading experience for users, and have wide applicability and better market prospect.
Description
Technical Field
The invention relates to the technical field of digital publishing, in particular to a cross-terminal self-adaptive display system and a cross-terminal self-adaptive display method for an electronic book based on XML.
Background
Currently, in the aspect of adaptive display of digital content, it is common practice to implement cross-terminal adaptive display of electronic book content through "streaming document format + reading application" or "streaming document format + reader". Although the method solves the problem of cross-terminal self-adaptation of the electronic book to a certain extent, the method also brings about the problem of increased development cost for enterprises. Not only do electronic book producers produce content, but also develop reading APPs or readers, which consume a great deal of resources from the previous production of applications to the later updating and maintenance of versions. For the user, different enterprises issue contents in different formats because the e-book industry does not have a uniform format standard at present. Generally, these formats are not compatible with each other, so that users need to install different reading applications or purchase corresponding readers when reading electronic books of different platforms, thereby increasing the inconvenience and reading cost of readers.
Disclosure of Invention
The invention aims to overcome the defects in the background art, and provides a cross-terminal self-adaptive display system and a cross-terminal self-adaptive display method for an electronic book based on XML (extensive makeup language), which can not only self-adapt the same content to different terminal devices, but also effectively arrange digital resources, facilitate content recombination, multi-dimensional deep mining and personalized publishing, bring great convenience to the work of publishers and provide good reading experience for users.
In order to achieve the technical effects, the invention adopts the following technical scheme:
a cross-terminal self-adaptive display system of an electronic book based on XML is arranged at a server end and comprises a content structuralization processing module, a document conversion module, a template matching module, an XML document library and a template library, wherein the content structuralization processing module is connected with the document conversion module and the XML document library, the document conversion module is connected with the XML document library and the template matching module, and the template matching module is connected with the template library;
the content structuralization processing module is used for receiving unstructured data contents sent to the server by the client, splitting and actually marking the unstructured digital contents by utilizing an XML technology, determining an organization relation and a definition mode among data elements, refining the organization relation and the definition mode into a model, and finally obtaining an effective XML document;
the document conversion module is used for converting the XML document into an XHTML document more suitable for page display through an XSLT conversion technology;
the template matching module is used for matching a proper format for the XHTML document after the document conversion according to the characteristics of the client;
the XML document library is used for splitting unstructured data content received by a server end into a plurality of content structure XML files and XML organization files according to content structure standard requirements established in advance, and then storing feature codes of the extracted XML fragmented content structure files and information of the whole manuscript;
the template library is used for generating an electronic book format which can reflect the characteristics of the whole manuscript and also can consider the characteristics of the client equipment.
Further, the unstructured data content is divided into directly indexable text, documents, and pictures and images that need to be digitally processed.
Further, the content structuring processing module must also follow certain semantic constraints when performing the tagging on the unstructured digital content to determine the elements that may exist in the document, the arrangement order of the elements, and the hierarchical relationship of the elements.
Further, the semantic constraints define a DTD for a document type.
Meanwhile, the invention also discloses a method for realizing the cross-terminal self-adaptive display system of the electronic book based on the XML, which specifically comprises the following steps:
A. the client sends a resource request of unstructured data content containing equipment information of the client to the server;
B. the XML document library is used for splitting unstructured data content received by a server end into a plurality of content structure XML files and XML organization files according to content structure standard requirements established in advance, and then storing feature codes of the extracted XML fragmented content structure files and information of the whole manuscript;
C. the content structuralization processing module receives unstructured data content sent to the server by the client, splits and actually marks the unstructured digital content by using an XML technology, determines an organization relation and a definition mode among data elements and refines the organization relation and the definition mode into a model, and finally obtains an effective XML document;
D. the document conversion module converts the XML document into an XHTML document more suitable for page display through an XSLT conversion technology;
E. the template matching module matches a proper format for the XHTML document after the document conversion according to the equipment information received by the server;
F. the template library generates an electronic book format which can reflect the characteristics of the whole manuscript and also can consider the characteristics of the client equipment;
G. and the server side returns the temporarily generated e-book format to the client side.
Further, the step C specifically includes:
C1. defining resource types clearly, and analyzing the content structure of the resource types;
C2. establishing a conceptual model: highly abstracting the received unstructured data content, and determining using elements, attributes, entities and symbols;
C3. establishing a logic model: further refining each object in the conceptual model, and determining the hierarchical relationship among elements, the attribute contained in the elements and the data type of the attribute;
C4. establishing a physical model: and storing data by adopting the XML document, and finally generating an electronic book example in the XML document library.
Further, when the conceptual model is established in the step C2, the conceptual model is specifically structured and described by using a method of combining the UML class diagram and the dendrogram.
Further, the semantic constraint type of the document type definition DTD is adopted in the step C3 to determine the elements that may exist in the document, the arrangement order of the elements, and the hierarchical relationship of the elements.
Further, the process of creating the document type definition DTD includes:
step 1: parsing existing content to be used or integrated into an XML document;
step 2: determining elements, attributes, entities and symbols to be used;
and step 3: analyzing the relationship hierarchy of the elements, attributes, entities and symbols;
and 4, step 4: establishing a DTD model for an object to be described and declaring to establish the DTD model;
and 5: and (4) carrying out analysis test on the DTD model, if the DTD model passes the test, completing the creation, and if the DTD model does not pass the test, returning to the step 1.
Further, in the step F, in order to make the generated e-book format more normative, the content of the e-book format needs to be modeled, specifically: defining the electronic book resource as a triple < electronic book identification, electronic book category and electronic book local characteristic >, wherein;
the electronic book identification is a specific identification unique to the content resource and used for distinguishing a specific electronic book;
the e-book category is to classify the contents according to different subject matters;
the local characteristics of the electronic book define the content features of the electronic book relative to the same category.
Compared with the prior art, the invention has the following beneficial effects:
the electronic book cross-terminal self-adaptive display system and method based on the XML mainly have the following advantages that:
firstly, by adopting the cross-terminal self-adaptive display method of the electronic book, due to the fact that the digital resources are subjected to structural processing, the content of the electronic book is more convenient to recombine, carry out multi-dimensional deep mining and individually publish;
secondly, the cross-terminal self-adaptive display system and method of the electronic book based on the XML can generate the page matched with the current terminal without developing the corresponding APP, and are beneficial to reducing the development cost of enterprises;
thirdly, through the cross-terminal self-adaptive display system and method of the electronic book based on the XML, a good format can be provided to enhance the readability of page content, and further the reading experience of a user is improved.
Drawings
Fig. 1 is a general flow diagram illustrating a cross-terminal adaptive display method for an XML-based electronic book according to the present invention.
FIG. 2 is a schematic diagram of a document structuring process flow of the present invention.
Fig. 3 is a flow chart of DTD model creation.
Detailed Description
The invention will be further elucidated and described with reference to the embodiments of the invention described hereinafter.
Example (b):
the first embodiment is as follows:
a cross-terminal self-adaptive display system of an electronic book is arranged at a server end, the server end is in communication connection with a client end and comprises a content structuralization processing module, a document conversion module, a template matching module, an XML document library and a template library, the content structuralization processing module is connected with the document conversion module and the XML document library, the document conversion module is connected with the XML document library and the template matching module, and the template matching module is connected with the template library.
Specifically, the content structuring processing module is used for receiving unstructured data content, which is mainly divided into directly indexable texts, documents, and pictures and images needing digital processing; the XML technology is utilized to split and actually mark unstructured digital content, so that the electronic book content can be conveniently recombined, deeply mined in multiple dimensions and individually published; and determining an organization relation and a definition mode among the data elements, refining the organization relation and the definition mode into a model, and finally obtaining the effective XML document.
When the content is subjected to content tagging, the content structuring processing module must follow certain semantic constraints to determine elements, an arrangement order of the elements, a hierarchical relationship of the elements, and the like which can exist in the document. The constraints followed in this embodiment define the DTD for the document type.
Namely, the essence of the content structuring processing module is to model data, and specifically, the whole process is subjected to several steps of conceptual model design, logical model design and physical model design;
the conceptual model is a high abstraction of the content to be structured and is the basis for building other models, the creation quality of the conceptual model directly influences the building of other models, wherein the concise and clear characteristics of UML are suitable for building the conceptual model for the XML structured document, but for the document with deeper structure level, the simplicity of the UML class diagram cannot be obviously reflected, therefore, the method of combining the UML class diagram and the tree diagram is adopted to structure and describe the model.
The logic model is used for further refining each object in the conceptual model, and determining the hierarchical relationship among elements, the attribute contained in the elements, the data type of the attribute and the like.
At present, two methods, namely DTD document type definition and XML Schema, are used for refining the objects, because DTD is more mature than the XML Schema technology, the support of a plurality of tools on DTD is better than that of XML Schema, and DTD is the only definition and verification method in the XML recommendation standard, the logic model is described by adopting the method.
Before creating a DTD model, the existing content to be used or integrated into the XML document must be carefully analyzed to determine what elements, attributes, entities and symbols are required, and then the relationships and hierarchies of these content elements are understood to build the model for the object to be described.
Specifically, with a method and steps that are continuously refined and refined from the whole to the part, from the macro to the concrete, as shown in fig. 3, a good DTD model is created, specifically, the content that needs to be structured must be understood first, what elements, attributes, entities and symbols are needed is determined, the relationship and hierarchy of the content elements are understood second, and finally, the content elements are declared.
The physical model concerns how data is stored and how it is embodied in a database; because the essence of the XML document is a structured carrier for storing data, the data has semantics when in the XML document, and the physical model is realized by adopting the XML document.
The main function of the document conversion module is to convert the document after the structural processing, including format conversion and content conversion. The document conversion is carried out at the back end, when a client sends a request through a browser, a background server converts XML into an XHTML format which is more suitable for page display through an XSLT conversion technology by means of a script language and a document conversion module.
Since XSLT consumes a lot of memory and processor capacity when processing documents, in the present embodiment, the XSLT is selected to be processed on the server, and the CSS is processed in the browser;
the template matching module is used for matching a proper format for the XHTML document after the document conversion according to the characteristics of the client; when the terminal device sends a request to the backend, the detailed information of the device is passed to the server together. The server matches the corresponding format to the temporarily generated page according to the information, and then the result is transmitted back to the user terminal.
In order to make the generated electronic book layout more normative, the content of the electronic book layout also needs to be modeled and represented in the embodiment. Specifically, the e-book resource is defined as a triple < e-book identifier, e-book category, e-book local characteristic >.
The electronic book identifier is a specific identifier unique to the content resource and is used for distinguishing a specific electronic book. The specific identification adopts ISBN in the metadata of the electronic book, and when the characteristics of the content are extracted, ISBN child nodes in < bookmark > nodes of the electronic book can be directly inquired;
the category of the e-book is to classify the contents thereof according to different subject matters. The 'e-book category' value occupies higher weight in the whole resource model system, accurately conveys the theme of the e-book, and solves the 'unlike problem' in the layout design;
the local characteristics of the e-book define the content features of the e-book relative to the same category. The function of the method is to enable the generated format to show more changes on the premise of being integrated on the whole and to be closer to the unique characteristic of an electronic book
The XML document library is used for splitting unstructured data content received by a server into a plurality of content structure XML files and XML organization files according to content structure standard requirements formulated in advance, extracting feature codes of the XML fragmented content structure files and information of the whole manuscript, and storing the feature codes and the information of the whole manuscript in the database.
The template library is used for generating a layout which can reflect the characteristics of the work and also gives consideration to the characteristics of the terminal equipment. In particular to a comprehensive design of the electronic book from the aspects of content characteristics and a distribution terminal.
Example two
As shown in fig. 1, an implementation method of the above-mentioned electronic book cross-terminal adaptive display system based on XML specifically includes the following steps:
A. the client sends a resource request of unstructured data content containing equipment information of the client to the server;
B. the XML document library is used for splitting unstructured data content received by a server end into a plurality of content structure XML files and XML organization files according to content structure standard requirements established in advance, and then storing feature codes of the extracted XML fragmented content structure files and information of the whole manuscript;
C. the content structuralization processing module receives unstructured data content sent to the server by the client, splits and actually marks the unstructured digital content by using an XML technology, determines an organization relation and a definition mode among data elements and refines the organization relation and the definition mode into a model, and finally obtains an effective XML document;
D. the document conversion module converts the XML document into an XHTML document more suitable for page display through an XSLT conversion technology;
E. the template matching module matches a proper format for the XHTML document after the document conversion according to the equipment information received by the server;
F. the template library generates an electronic book format which can reflect the characteristics of the whole manuscript and also can consider the characteristics of the client equipment;
G. and the server side returns the temporarily generated e-book format to the client side.
Specifically, as shown in fig. 2, the document structuring processing procedure in step C specifically includes:
C1. defining resource types clearly, and analyzing the content structure of the resource types;
C2. establishing a conceptual model: highly abstracting the received unstructured data content, and determining using elements, attributes, entities and symbols;
C3. establishing a logic model: further refining each object in the conceptual model, and determining the hierarchical relationship among elements, the attribute contained in the elements and the data type of the attribute;
C4. establishing a physical model: and storing data by adopting the XML document, and finally generating an electronic book example in the XML document library.
Preferably, when the conceptual model is built in the step C2, the conceptual model is specifically built and described by using a method of combining a UML class diagram and a dendrogram, and the concise and clear characteristics of UML are suitable for building the conceptual model for a document to be structured in XML.
Specifically, in the step C3, the semantic constraint type of the document type definition DTD is used to determine the elements that may exist in the document, the arrangement order of the elements, and the hierarchical relationship of the elements. Two methods of Document Type Definition (DTD) and XML Schema exist at present to refine the objects. Because DTD is more mature than XML Schema technology, the support of a plurality of tools to DTD is better than XML Schema, and DTD is the only defining and verifying method in XML recommendation standard, the logic model of the invention is described by the method
As shown in fig. 3, the process of creating the document type definition DTD includes:
step 1: parsing existing content to be used or integrated into an XML document;
step 2: determining elements, attributes, entities and symbols to be used;
and step 3: analyzing the relationship hierarchy of the elements, attributes, entities and symbols;
and 4, step 4: establishing a DTD model for an object to be described and declaring to establish the DTD model;
and 5: and (4) carrying out analysis test on the DTD model, if the DTD model passes the test, completing the creation, and if the DTD model does not pass the test, returning to the step 1.
Specifically, in the step F, in order to make the generated e-book format more normative, the content of the e-book format needs to be modeled, specifically: defining the electronic book resource as a triple < electronic book identification, electronic book category and electronic book local characteristic >, wherein;
the electronic book identification is a specific identification unique to the content resource and used for distinguishing a specific electronic book;
the e-book category is to classify the contents according to different subject matters;
the local characteristics of the electronic book define the content features of the electronic book relative to the same category.
From the above, the electronic book cross-terminal self-adaptive display system and method based on the XML of the present invention mainly consider from the aspect of format, and based on the XML technology, arrange the digital content, and can make different formats for different content subjects, and further, by a responsive layout principle, realize the automatic adaptation of the electronic book content when being presented on different reading devices, and not only can self-adapt the same content to different terminal devices, but also can effectively arrange the digital resources, which is convenient for content recombination, multi-dimensional deep mining and personalized publishing, brings great convenience to the work of publishers, provides good reading experience for users, and has wide applicability and good market prospect.
It will be understood that the above embodiments are merely exemplary embodiments taken to illustrate the principles of the present invention, which is not limited thereto. It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the spirit and substance of the invention, and these modifications and improvements are also considered to be within the scope of the invention.
Claims (9)
1. A cross-terminal self-adaptive display system of an electronic book based on XML is arranged at a server end and is characterized by comprising a content structuralization processing module, a document conversion module, a template matching module, an XML document library and a template library, wherein the content structuralization processing module is connected with the document conversion module and the XML document library, the document conversion module is connected with the XML document library and the template matching module, and the template matching module is connected with the template library;
the content structuralization processing module is used for receiving unstructured data contents sent to the server by the client, splitting and actually marking the unstructured digital contents by utilizing an XML technology, determining an organization relation and a definition mode among data elements, refining the organization relation and the definition mode into a model, and finally obtaining an effective XML document; the content structuring processing module must follow certain semantic constraints when performing the time marking on the unstructured digital content, so as to determine elements which can exist in the document, the arrangement order of the elements and the hierarchical relationship of the elements;
the document conversion module is used for converting the XML document into an XHTML document more suitable for page display through an XSLT conversion technology;
the template matching module is used for matching a proper format for the XHTML document after the document conversion according to the characteristics of the client;
the XML document library is used for splitting unstructured data content received by a server end into a plurality of content structure XML files and XML organization files according to content structure standard requirements established in advance, and then storing feature codes of the extracted XML fragmented content structure files and information of the whole manuscript;
the template library is used for generating an electronic book format which can reflect the characteristics of the whole manuscript and also can consider the characteristics of the client equipment.
2. An XML-based electronic book cross-terminal adaptive display system according to claim 1, wherein the unstructured data content is divided into directly indexable text, documents, and pictures and images that need to be digitized.
3. An XML-based electronic book cross-terminal adaptive display system according to claim 1, wherein the semantic constraints define DTDs for document types.
4. An implementation method of the cross-terminal adaptive display system for the electronic book based on the XML according to claim 1, specifically comprising the following steps:
A. the client sends a resource request of unstructured data content containing equipment information of the client to the server;
B. the XML document library is used for splitting unstructured data content received by a server end into a plurality of content structure XML files and XML organization files according to content structure standard requirements established in advance, and then storing feature codes of the extracted XML fragmented content structure files and information of the whole manuscript;
C. the content structuralization processing module receives unstructured data content sent to the server by the client, splits and actually marks the unstructured digital content by using an XML technology, determines an organization relation and a definition mode among data elements and refines the organization relation and the definition mode into a model, and finally obtains an effective XML document;
D. the document conversion module converts the XML document into an XHTML document more suitable for page display through an XSLT conversion technology;
E. the template matching module matches a proper format for the XHTML document after the document conversion according to the equipment information received by the server;
F. the template library generates an electronic book format which can reflect the characteristics of the whole manuscript and also can consider the characteristics of the client equipment;
G. and the server side returns the temporarily generated e-book format to the client side.
5. The method for implementing an XML-based electronic book cross-terminal adaptive display system according to claim 4, wherein the step C specifically includes:
C1. defining resource types clearly, and analyzing the content structure of the resource types;
C2. establishing a conceptual model: highly abstracting the received unstructured data content, and determining using elements, attributes, entities and symbols;
C3. establishing a logic model: further refining each object in the conceptual model, and determining the hierarchical relationship among elements, the attribute contained in the elements and the data type of the attribute;
C4. establishing a physical model: and storing data by adopting the XML document, and finally generating an electronic book example in the XML document library.
6. The method as claimed in claim 5, wherein the conceptual model is built in step C2 by using a combination of UML class diagram and tree diagram.
7. The method as claimed in claim 5, wherein the step C3 uses the document type to define the DTD semantic constraint type to determine the elements that can exist in the document, the order of the elements, and the hierarchical relationship between the elements.
8. The method of claim 7, wherein the procedure of creating the Document Type Definition (DTD) is as follows:
step 1: parsing existing content to be used or integrated into an XML document;
step 2: determining elements, attributes, entities and symbols to be used;
and step 3: analyzing the relationship hierarchy of the elements, attributes, entities and symbols;
and 4, step 4: establishing a DTD model for an object to be described and declaring to establish the DTD model;
and 5: and (4) carrying out analysis test on the DTD model, if the DTD model passes the test, completing the creation, and if the DTD model does not pass the test, returning to the step 1.
9. The method for implementing an XML-based electronic book cross-terminal adaptive display system according to claim 4, wherein in the step F, in order to make the generated electronic book format more normative, it is necessary to model and express its content, specifically: defining the electronic book resource as a triple < electronic book identification, electronic book category and electronic book local characteristic >, wherein;
the electronic book identification is a specific identification unique to the content resource and used for distinguishing a specific electronic book;
the e-book category is to classify the contents according to different subject matters;
the local characteristics of the electronic book define the content features of the electronic book relative to the same category.
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