CN101799753B - Method and device for realizing tree structure - Google Patents
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Abstract
The invention discloses a method for realizing a tree structure. The method comprises the following steps: determining a user as metadata designated by a tree structure in a page file, wherein the metadata is a peculiar service logical code of the tree structure; when the tree structure in the page needs to be displayed, analyzing the metadata in the page file; and combining the analyzed metadata information with a template code of the tree structure, obtaining data for displaying the tree structure, and returning the data to a browser, so that the browser displays the corresponding tree structure in the page, wherein the template code of the tree structure is a public code of all the tree structures previously abstracted. The invention enhances the code reusability and the efficiency for realizing the tree structure.
Description
Technical field
The present invention relates to the Web application, particularly relate to a kind of method and device of realizing tree structure.
Background technology
Along with the development of informationization technology, various informationalized web application systems are more and more.Have very widely in web uses with the tree structure demonstrating data and to use, as being used for showing institutional framework and customer relationship with relationship between superior and subordinate, being used for menu that shows level etc.Tree structure can present the set membership between data the most intuitively.
The most basic unit of tree structure is node, and a common tree structure comprises root node, branch node and leaf node.Generally the Tree control that provides of the development language by usefulness is realized in client application, and in weblication because there is not corresponding control, need to adopt other to realize such as page technology such as JavaScript, CSS.
Present modal technical scheme adopts JavaScript to realize.Add HTML, the JavaScript code of tree structure in the browser end page, write the service code of organizing tree structure data at server end, the data that browser end returns by the analysis service end finally show tree structure.For different business scenarios, the programmer need to write the service code of different in a large number tree structure HTML code, JavaScript code and server end and realize required display effect.
But the JavaScript code of tree structure and the service code of server end are usually very complicated, and tree structure of every realization all needs again to write code, so that realize that the efficient of tree structure is very low; And the code that represents tree structure is corresponding with the service code of service end, and code reuse is poor.
Summary of the invention
In view of this, the object of the present invention is to provide a kind of method and device of realizing tree structure, can by improving the efficient that realizes tree structure, improve the reusability of code.
For achieving the above object, the invention provides following scheme:
A kind of method that realizes tree structure comprises:
Determine that the user is the metadata of tree structure appointment in pagefile, described metadata is the distinctive business logic codes of described tree structure;
When needs represent tree structure in the page, resolve the metadata in the described pagefile;
Combine with the tree structure template code resolving the metadata information that obtains, obtain to represent the required data of tree structure, and return to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
Preferably, described definite user comprises for the metadata of tree structure appointment in pagefile:
In pagefile, be the metadata ID of tree structure appointment by receiving the user, determine described metadata;
Metadata in the described pagefile of described parsing comprises:
Load corresponding metadata by described metadata ID, and resolve.
Preferably, described definite user comprises for the metadata of tree structure appointment in pagefile:
Receive the peculiar service logic that the user selects for tree structure at the page;
Generate corresponding metadata according to described peculiar service logic, and with the metadata of the described generation metadata as user's appointment.
Preferably, the configuration information in the described metadata comprises:
The level attribute of the filtercondition of back-end data model, the back-end data model of tree, the layering reading information of tree, tree, click nodal community, click nodal community and event extended attribute by right key.
Preferably, the attribute of described back-end data model comprises node ID, father node ID and node type.
Preferably, the attribute of described back-end data model comprises also whether the rank of tree, node are leaf node and ordering.
A kind of device of realizing tree structure comprises:
Interface unit is used for determining that the user is the metadata of tree structure appointment at pagefile, and described metadata is distinctive business logic codes in the described tree structure;
Resolution unit is used for resolving the metadata in the described pagefile in the time need to representing the tree structure of the page;
Module units is used for resolving the metadata information that obtains and combines with the tree structure template code, obtains to represent the required data of tree structure, and returns to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
Preferably, described interface unit comprises:
First receives subelement, and being used for receiving the user is the metadata ID of tree structure appointment at pagefile:
Determine subelement, be used for determining described metadata according to described metadata ID;
Described resolution unit comprises:
Load subelement, be used for loading corresponding metadata by described metadata ID;
Resolve subelement, be used for resolving the described metadata that finds.
Preferably, described interface unit comprises:
Second receives subelement, is used for receiving the peculiar service logic that the user selects for tree structure at the page;
Metadata generates subelement, is used for generating corresponding metadata according to described peculiar service logic, and with the metadata of the described generation metadata as user's appointment.
Preferably, the configuration information in the described metadata comprises:
The level attribute of the filtercondition of back-end data model, the back-end data model of tree, the layering reading information of tree, tree, click nodal community, click nodal community and event extended attribute by right key.
Preferably, the attribute of described back-end data model comprises node ID, father node ID and node type.
Preferably, the attribute of described back-end data model comprises also whether the rank of tree, node are leaf node and ordering.
According to specific embodiment provided by the invention, the invention discloses following technique effect:
The present invention is by introducing metadata and tree structure template code, the data message that tree structure is required is configured in the metadata, the browser end code is tree structure template code and the metadata that defines in pagefile, when browser end represents tree structure, server end loads first corresponding metadata, again by the information inside the analytical element data, combine with the tree structure template code resolving the metadata information that obtains, acquisition represents the required data of tree structure, and return to browser, so that browser represents corresponding tree structure in the page.Therefore, the tree structure template code is transparent for the user, and the user need not write this part code again, also need not concern the specific implementation of this part code, has therefore improved the reusability of code; Simultaneously, only need to be in pagefile configure metadata, therefore, improved the efficient that realizes tree structure.
Description of drawings
Fig. 1 is the process flow diagram of the method that provides of the embodiment of the invention;
Fig. 2 is the schematic diagram of the device that provides of the embodiment of the invention.
Embodiment
For above-mentioned purpose of the present invention, feature and advantage can be become apparent more, the present invention is further detailed explanation below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the method for the realization tree structure that the embodiment of the invention provides may further comprise the steps:
S101: determine that the user is the metadata of tree structure appointment in pagefile, described metadata is distinctive business logic codes in the described tree structure;
Improve the efficient that realizes tree structure, the purpose that improves the reusability of code in order to reach, the embodiment of the invention at first takes out the JavaScript code of tree structure as foundation code, and each tree structure all uses this foundation code as the tree structure template code.These tree structure template code are the public parts of each tree structure, as long as realize tree structure, just must include these codes.That is to say, the embodiment of the invention at first extracts code public in each tree structure, forms the tree structure template code.The user need to not write this part code again when realizing tree structure, do not need to be concerned about how this part code is realized yet.
Simultaneously, also need to define on the backstage back-end data model of tree structure, a data model corresponding to tree structure needs to comprise three attributes at least: node ID, father node ID, node type, can realize representing of tree structure by these attributes.Certainly, in order to accelerate to represent the speed of tree structure, can also comprise other optional attributes in this data model, as the tree rank, whether be leaf node and ordering etc.Can optimize the algorithm of backstage inquiry tree structure data by optional attribute, reduce the number of times of ergodic data, improve the performance of system.
Certainly, each tree structure also has separately distinctive business logic codes, this part distinctive business logic codes is used for obtaining the required data message of tree structure, comprise whether disposable expansion, by which object fetch data, node type is text or link, whether comprise click event etc., certainly also comprises the configuration information of described back-end data model etc.
The embodiment of the invention also needs the distinctive business logic codes of tree structure is configured in the metadata when extracting the tree structure template code.The required metadata of tree structure will form the XML configuration file, can navigate to concrete metadata by this configuration file.Tree structure template code and the back-end data model interaction that can show by metadata.
Like this, the user just only need to specify required metadata in the pagefile of writing when writing the tree structure code.Wherein, the user can manually write the code that needs in the metadata and the ID of appointment codes; For example, the user need to node type be set to text-type, then can manually write the code of realizing this setting, and save as the XML file, can be appointed as with regard to signs such as filenames simultaneously the ID of this metadata, so that service end can navigate to this metadata when resolving exactly.
Certainly, also can provide for the user entrance of generator data code, automatically generate the required metadata of user.For example, the user need to node type be set to text-type equally, the entrance of " node type setting " then can be provided for the user on the page, can also select by mode prompting users such as comboboxs the type of node, like this, the user clicks and selects just can click the button of " generator data " after the text-type, then can automatically generate corresponding metadata.Still can be the XML file with this meta-data preservation, and the metadata ID of needs write in the pagefile get final product.
S102: when needs represent tree structure in the page, resolve the metadata in the described pagefile;
When resolving the metadata in the described pagefile, meta data file is read into internal memory, and the information that defines in the metadata is converted to the program object of server end by the mode of resolving the xml file.
The code of the browser end among the step S101 is the metadata of tree structure template code and appointment in pagefile.Wherein, when carrying out the location of metadata by metadata ID, the user only need to specify metadata ID in pagefile.
When needs represented tree structure in the page, service end can be resolved the metadata in the pagefile, if that preserve in the pagefile is the ID of metadata, then can at first by the ID metadata about load of metadata, then resolve.
The purpose of analytical element data is to get access to the required data message of tree structure from database, only gets access to concrete data message, and browser end just can show tree structure.
S103: will resolve the metadata information that obtains and combine with the tree structure template code, server end at first loads the tree structure template code, then the code that in template code, adds service personalization according to the content of describing in the metadata after resolving, final acquisition represents the required complete code of tree structure, and return to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
After the analytical element data, just can combine with the tree structure template code resolving the metadata information that obtains, obtain to represent the required data of tree structure.Obtain this moment represents the required data of tree structure, be the equal of the data that whole codes of the tree structure that the user manually writes under the traditional approach obtain, then these data are turned back to browser end, like this, browser end just can go out corresponding tree structure according to the required data exhibiting of tree structure that represents that returns.
That is to say, in the prior art, the user need to be programmed in service end and write service code, so that service end can be obtained data message in the tree structure according to these service codes, these service codes are all write by the user; But in embodiments of the present invention, the user does not need to write the tree structure template code, only needs to specify the metadata that needs; When needs represented tree structure, service end can be resolved the metadata of user's appointment automatically, got access to represent the required data message of tree structure, and then browser end just can represent corresponding tree structure.
As seen, in embodiments of the present invention, the tree structure template code can be multiplexing, the user writes this partial code in the time of can realizing tree structure at every turn, therefore, has improved the reusability of code, and in the time need to carrying out pattern modification of overall importance, also easily safeguard; Simultaneously, the user can adopt the mode of collocation type to realize the peculiar business logic codes of attribute structure, the service end that needs the user to write under the traditional approach is obtained the service code of tree structure data, be transformed in the metadata, implementation is unified, like this, when the runtime need to be revised certain tree structure, can directly realize by revising configuration file, therefore, improve the efficient that realizes tree structure.
Wherein, the information that configures in the metadata can comprise:
The back-end data model of tree: the back-end data model that configure metadata is showed;
The filtercondition of back-end data model: configuration data filtering information;
The layering of tree is read: disposable all data or the asynchronous reading out data of reading; The number of plies that represents when representing for the first time; During asynchronous reading, the number of plies that at every turn reads;
The level attribute of node: be used for to realize that the tree structure different levels have the different effects that represents, comprise the picture that node represents and use when packing up; The type of node is radio box, multiselect frame, text or link;
Click nodal community: the function name of in clicking tree, carrying out during node;
Right button nodal community: the function name of carrying out when the menu content that configuration shows when the right button node and click respective menu;
Event extended attribute: the function of carrying out during the initialization of configuration tree structure; The functions of carrying out when node carries out deletion action in the configuration tree etc., this function makes things convenient for the user monitoring data variation to provide convenience.
Need to prove, the present invention is equally applicable to the realization of other webpage representation content, such as tabulation, tab, cascade combobox etc., these pages displaying scenes are refined, take out reusable JavaScript code, then by metadata service logic and corresponding JavaScript code are carried out relatedly, show the content of different pattern difference in functionalitys.
The method of the realization tree structure that provides with the embodiment of the invention is corresponding, and the embodiment of the invention also provides a kind of device of realizing tree structure, and referring to Fig. 2, this device comprises:
Interface unit U201 is used for determining that the user is the metadata of tree structure appointment at pagefile, and described metadata is distinctive business logic codes in the described tree structure;
Resolution unit U202 is used for resolving the metadata in the described pagefile in the time need to representing the tree structure of the page;
Module units U203 is used for resolving the metadata information that obtains and combines with the tree structure template code, obtains to represent the required data of tree structure, and returns to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
By the device that the embodiment of the invention provides, the tree structure template code can be multiplexing, and the user writes this partial code at every turn in the time of can realizing tree structure, therefore, improved the reusability of code, and in the time need to carrying out pattern modification of overall importance, also easily safeguarded; Simultaneously, the user can adopt the mode of collocation type to realize the peculiar business logic codes of attribute structure, the service end that needs the user to write under the traditional approach is obtained the service code of tree structure data, be transformed in the metadata, implementation is unified, like this, when the runtime need to be revised certain tree structure, can directly realize by revising configuration file, therefore, improve the efficient that realizes tree structure.
Wherein, the user can specify the ID of metadata in pagefile, then can determine by the ID of metadata the metadata that the user needs, and at this moment, interface unit U201 can comprise:
First receives subelement, and being used for receiving the user is the metadata ID of tree structure appointment at pagefile;
Determine subelement, be used for determining described metadata according to described metadata ID;
Accordingly, resolution unit U202 can comprise:
Load subelement, be used for loading corresponding metadata by described metadata ID;
Resolve subelement, be used for resolving the described metadata that finds.
When specifying metadata, can manually write the metadata code, also can automatically be generated by instrument, when automatically generating, interface unit U201 comprises:
Second receives subelement, is used for receiving the peculiar service logic that the user selects for tree structure at the page;
Metadata generates subelement, is used for generating corresponding metadata according to described peculiar service logic, and with the metadata of the described generation metadata as user's appointment.
Wherein, the configuration information in the described metadata can comprise: the layering reading information of the back-end data model of tree, the filtercondition of back-end data model, tree, the level attribute of tree, click nodal community, click nodal community and event extended attribute by right key.
Back-end data model wherein comprises following attribute at least: node ID, father node ID and node type.In actual applications, in order to accelerate the speed that represents of tree structure, can also comprise in the back-end data model whether the rank of tree, node are leaf node and ordering etc.
Above to a kind of method and device of realizing tree structure provided by the present invention, be described in detail, used specific case herein principle of the present invention and embodiment are set forth, the explanation of above embodiment just is used for helping to understand method of the present invention and core concept thereof; Simultaneously, for one of ordinary skill in the art, according to thought of the present invention, all will change in specific embodiments and applications.In sum, this description should not be construed as limitation of the present invention.
Claims (10)
1. a method that realizes tree structure is characterized in that, comprising:
Determine that the user is the metadata of tree structure appointment in pagefile, described metadata is the distinctive business logic codes of described tree structure; Configuration information in the described metadata comprises, the layering reading information of the back-end data model of tree, the filtercondition of back-end data model, tree, the level attribute of tree, clicks nodal community, clicks nodal community and event extended attribute by right key;
When needs represent tree structure in the page, resolve the metadata in the described pagefile;
Combine with the tree structure template code resolving the metadata information that obtains, obtain to represent the required data of tree structure, and return to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
2. method according to claim 1 is characterized in that, described definite user comprises for the metadata of tree structure appointment in pagefile:
In pagefile, be the metadata ID of tree structure appointment by receiving the user, determine described metadata;
Metadata in the described pagefile of described parsing comprises:
Load corresponding metadata by described metadata ID, and resolve.
3. method according to claim 1 is characterized in that, described definite user comprises for the metadata of tree structure appointment in pagefile:
Receive the peculiar service logic that the user selects for tree structure at the page;
Generate corresponding metadata according to described peculiar service logic, and with the metadata of the described generation metadata as user's appointment.
4. method according to claim 1 is characterized in that, the attribute of described back-end data model comprises node ID, father node ID and node type.
5. method according to claim 4 is characterized in that, the attribute of described back-end data model comprises also whether the rank of tree, node are leaf node and ordering.
6. a device of realizing tree structure is characterized in that, comprising:
Interface unit is used for determining that the user is the metadata of tree structure appointment at pagefile, and described metadata is distinctive business logic codes in the described tree structure; Configuration information in the described metadata comprises, the layering reading information of the back-end data model of tree, the filtercondition of back-end data model, tree, the level attribute of tree, clicks nodal community, clicks nodal community and event extended attribute by right key;
Resolution unit is used for resolving the metadata in the described pagefile in the time need to representing the tree structure of the page;
Module units is used for resolving the metadata information that obtains and combines with the tree structure template code, obtains to represent the required data of tree structure, and returns to browser, so that browser represents corresponding tree structure in the page; Described tree structure template code is the public code of all tree structures of taking out in advance.
7. device according to claim 6 is characterized in that, described interface unit comprises:
First receives subelement, and being used for receiving the user is the metadata ID of tree structure appointment at pagefile;
Determine subelement, be used for determining described metadata according to described metadata ID;
Described resolution unit comprises:
Load subelement, be used for loading corresponding metadata by described metadata ID;
Resolve subelement, be used for resolving described metadata.
8. device according to claim 7 is characterized in that, described interface unit comprises:
Second receives subelement, is used for receiving the peculiar service logic that the user selects for tree structure at the page;
Metadata generates subelement, is used for generating corresponding metadata according to described peculiar service logic, and with the metadata of the described generation metadata as user's appointment.
9. device according to claim 8 is characterized in that, the attribute of described back-end data model comprises node ID, father node ID and node type.
10. device according to claim 9 is characterized in that, the attribute of described back-end data model comprises also whether the rank of tree, node are leaf node and ordering.
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CN103530379A (en) * | 2013-10-15 | 2014-01-22 | 福建榕基软件股份有限公司 | Tree structure data display method and device |
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CN104424266B (en) * | 2013-08-29 | 2019-03-22 | 北大方正集团有限公司 | Homepage Publishing method and system |
CN103995835A (en) * | 2014-04-25 | 2014-08-20 | 江苏思迈斯电子商务有限公司 | Method for searching for webpage elements of user interface framework |
CN103971211A (en) * | 2014-05-29 | 2014-08-06 | 中国银行股份有限公司 | Information processing method and device |
CN104991778B (en) * | 2015-07-15 | 2018-10-02 | 北京京东尚科信息技术有限公司 | Filter method based on tree structure and device |
CN106406833B (en) * | 2015-07-30 | 2020-09-01 | 北京京东尚科信息技术有限公司 | Method and device for providing data |
CN105574088A (en) * | 2015-12-11 | 2016-05-11 | 成都科来软件有限公司 | Configurable tree data display method and apparatus |
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CN109324794B (en) * | 2018-09-03 | 2022-05-06 | 上海莉莉丝科技股份有限公司 | Method, system, apparatus and medium for automatically declaring objects in code |
CN113741968A (en) * | 2021-08-27 | 2021-12-03 | 厦门华厦学院 | Method for quickly generating table corresponding to directory tree and tree node of software system |
CN114036781B (en) * | 2022-01-04 | 2022-05-06 | 阿里云计算有限公司 | Data processing method, data display method and device and electronic equipment |
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