CN113946399A - Spatial data loading method and device - Google Patents
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Abstract
The application discloses a space data loading method and a device, after obtaining a service request of a client, the method and the device determine a service address of a target service requested by a target data topic and a layer identifier of each target layer requested in the target service according to configuration information of the target data topic in the request, further create a single-layer service example comprising the target layer for each target layer according to the service address of the target service and the layer identifier of each target layer, render the target layer in each service example, and load the layer data completing rendering to the client in real time when completing the layer rendering of any service example, and provide a single-layer service loading mode through the processing process, so that the response rate to the client depends on the layer completing the rendering most quickly, and under the condition of not increasing the number of servers, the map loading efficiency of the client is greatly improved.
Description
Technical Field
The present application belongs to the technical field of network applications, and in particular, to a spatial data loading method and apparatus.
Background
In WebGIS (web geographic information system) applications, a series of layers are typically organized into a map document (mxd) according to a business scenario and published as a service for a client to call, and the server provides map data for the client in a map service manner.
In the prior art, when a client sends a certain service request, a server returns data to the client after all layers (client requests) in the service are rendered. If the number of layers requested by the client in a certain service is large and the data volume is large, the time for waiting for the rendering of the server is long, which causes a short blank of the map display of the client and greatly affects the user experience.
The applicant finds that in the prior art, the response time of a service is determined by the layer with the slowest rendering speed, that is, the layer with the slowest rendering speed is completed, and for the situation, a mode of publishing one layer as a map service can be adopted to solve the problem, but because the number of services published by one GIS server is usually limited, in an application system with a huge number of layers, the solution is not feasible, and the number of servers is greatly increased.
Disclosure of Invention
In view of this, the present application provides a method and an apparatus for loading spatial data, which implement that the map loading efficiency of a client is greatly improved without increasing the number of servers by providing a single-layer service loading manner.
The specific technical scheme is as follows:
a method of spatial data loading, the method comprising:
acquiring a service request of a client, wherein the service request comprises configuration information of a target data topic;
determining a service address of a target service requested by the target data special topic and layer identifiers of all target layers requested in the target service according to the configuration information;
according to the service address of the requested target service and the layer identifier of each target layer, creating a single-layer service instance comprising the target layer for each target layer to obtain a service instance set;
and rendering a target layer in each service instance of the service instance set, and loading the rendered layer data to the client when the layer rendering of any service instance is completed.
Optionally, the determining, according to the configuration information, a service address of a target service requested by the target data topic and a layer identifier of each target layer requested in the target service includes:
processing the configuration information of the target data topic to obtain a service array, wherein each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer;
and extracting the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service from each subitem of the service array.
Optionally, the creating, according to the service address of the requested target service and the layer identifier of each target layer, a single-layer service instance including the target layer for each target layer includes:
generating a plurality of example requests according to the service address of the requested target service and the layer identifier of each target layer, wherein each example request corresponds to each target layer one by one, and each example request comprises the layer identifier of the corresponding target layer and the service address of the target service to which the target layer belongs;
and creating a single-graph-layer service instance comprising the target graph layer for each target graph layer according to each instance request.
Optionally, the rendering a target layer in each service instance of the service instance set, and when layer rendering of any service instance is completed, loading rendered layer data to a client, includes:
based on a multi-request concurrent mode, performing parallel rendering processing on target layers in each service instance; and when the layer rendering of any service instance is finished, loading the rendered layer data to a client map in real time.
Optionally, before the obtaining of the service request of the client, the method further includes:
configuring a map document comprising a plurality of map layers according to business requirements, and issuing a map service to a server side based on the map document;
configuring a plurality of data topics according to a service scene; wherein each data topic is formed by combining a corresponding number of layers.
An apparatus for spatial data loading, the apparatus comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring a service request of a client, and the service request comprises configuration information of a target data topic;
the determining module is used for determining a service address of a target service requested by the target data special topic and layer identifiers of all target layers requested in the target service according to the configuration information;
the creating module is used for creating a single-graph-layer service instance comprising a target graph layer for each target graph layer according to the service address of the requested target service and the graph layer identifier of each target graph layer to obtain a service instance set;
and the layer processing module is used for rendering a target layer in each service instance of the service instance set, and loading the rendered layer data to the client when the layer rendering of any service instance is completed.
Optionally, the determining module is specifically configured to:
processing the configuration information of the target data topic to obtain a service array, wherein each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer;
and extracting the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service from each subitem of the service array.
Optionally, the creating module is specifically configured to:
generating a plurality of example requests according to the service address of the requested target service and the layer identifier of each target layer, wherein each example request corresponds to each target layer one by one, and each example request comprises the layer identifier of the corresponding target layer and the service address of the target service to which the target layer belongs;
and creating a single-graph-layer service instance comprising the target graph layer for each target graph layer according to each instance request.
Optionally, the layer processing module is specifically configured to:
based on a multi-request concurrent mode, performing parallel rendering processing on target layers in each service instance;
and when the layer rendering of any service instance is finished, loading the rendered layer data to a client map in real time.
Optionally, the apparatus further comprises:
a pre-processing module to:
configuring a map document comprising a plurality of map layers according to business requirements, and issuing a map service to a server side based on the map document;
configuring a plurality of data topics according to a service scene; wherein each data topic is formed by combining a corresponding number of layers.
According to the above scheme, after obtaining the service request of the client, the spatial data loading method and apparatus provided by the present application determine the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service according to the configuration information of the target data topic in the request, further create a single layer service instance including the target layer for each target layer according to the service address of the target service and the layer identifier of each target layer, render the target layer in each service instance, and load the layer data completing rendering to the client in real time when completing the layer rendering of any service instance, and provide a single layer service loading manner through the processing procedure, so that the response rate to the client depends on the layer completing the rendering most quickly, and under the condition of not increasing the number of servers, the map loading efficiency of the client is greatly improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, it is obvious that the drawings in the following description are only embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a schematic flow chart of a spatial data loading method provided in the present application;
FIG. 2 is a schematic flow chart of another spatial data loading method provided in the present application;
FIG. 3 is a schematic diagram illustrating a comparison of the layer loading principle of the present application and the conventional technology in an application example of the method of the present application provided by the present application;
fig. 4 is a schematic structural diagram of a spatial data loading apparatus provided in the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
The application discloses a spatial data loading method and a spatial data loading device, which are used for greatly improving the map loading efficiency of a client under the condition of not increasing the number of servers through the proposed single-map-layer service loading mode.
In implementation, the method can be implemented in a webpage script (JavaScript), and deployed in a server and run in a client browser. But not limited to, the method may also be deployed in a server in the form of a web script and run on a server side, or a part of processing logic may run on the server side, and the remaining part of processing logic may run on a client browser, which is not limited to this.
The processing flow of the spatial data loading method disclosed by the application is shown in fig. 1, and the method comprises the following steps:
Optionally, in the present application, the service provided by the server is a map service.
When a client application system needs to show a certain target data topic, a service request which is initiated by the client application system and comprises configuration information of the target data topic is obtained.
The configuration information of the target data topic included in the service request at least includes some basic configuration information of the target data topic, such as layer names (layermame), layer ids (layerid), and urls (Universal Resource Locator, uniform Resource Locator) of map services to which each layer belongs.
An example of a compact configuration of data topic configuration information is provided below:
After a service request of a client is obtained, the request is firstly analyzed to obtain configuration information of a target data topic, the configuration information of the target data topic is processed to obtain a service array, each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer.
And then, splitting the obtained service data, traversing sub-items in the service data, and extracting the service address of the target service requested by the target data thematic and the layer identifier of each target layer requested in the target service from each sub-item of the service array.
In the above configuration example of the data topic, each sub-item includes predetermined basic information of the target layer, including a name and an id of the corresponding layer and a url of the map service to which the layer belongs. The service address of the target service requested by the target data topic includes url of the map service to which each layer belongs, which is included in the configuration information of the target data topic, and the layer identifier of each target layer requested by the target data topic in the target service may refer to a layer name and/or a layer id of each layer, which is included in the configuration information of the target data topic.
Specifically, a plurality of example requests may be generated according to a service address of a target service of a target data topic request and layer identifiers of each target layer, where each example request corresponds to each target layer one to one, and each example request includes a layer identifier of a corresponding target layer and a service address of a target service to which the target layer belongs.
That is, one service request of the client is essentially converted into a plurality of example requests, and the number of example requests is consistent with the number of target layers constituting the target data topic (i.e., the target layers requested by the target data topic).
On the basis, further responding to each instance request, creating a single-layer service instance comprising the target layer for each target layer, and obtaining a service instance set comprising a series of single-layer service instances. As the name implies, the created service instance only includes a single layer, and the layer identifier (e.g., layerId) is used as the layer parameter of the corresponding service instance.
And step 104, rendering a target layer in each service instance of the service instance set, and loading rendered layer data to the client when layer rendering of any service instance is completed.
After the service instance set is obtained, parallel rendering processing can be further performed on a target layer in each service instance based on a multi-request concurrent mode, and when layer rendering of any service instance is completed, layer data which is completed in rendering is loaded to a client map in real time without waiting for layer rendering of other service instances to be completed.
The multiple service instances are independent of each other, on the basis of the independent data rendering method, one data topic is displayed and converted into synchronous rendering of the multiple service instances by means of a concurrent request technology, and layer data corresponding to the service instances are loaded on a client map in real time according to the actual rendering progress of each service instance, so that the loading response rate of a client request in the traditional technology is dependent on the layer with the slowest rendering finish, and the loading response rate is improved to be dependent on the layer with the fastest rendering finish.
According to the above scheme, after the service request of the client is obtained, the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service are determined according to the configuration information of the target data topic in the request, then according to the service address of the target service and the layer identifier of each target layer, a single-layer service instance including the target layer is created for each target layer, the target layers in each service instance are rendered, and when the layer rendering of any service instance is completed, the layer data completing the rendering is loaded to the client in real time, a single-layer service loading mode is provided through the processing process, so that the response rate to the client depends on the layer completing the rendering most quickly, and the method realizes that the number of servers is not increased, the map loading efficiency of the client is greatly improved.
In an embodiment, referring to the processing flow of the spatial data loading method provided in fig. 2, the spatial data loading method disclosed in this application may further include the following preprocessing process before step 101 shown in fig. 1:
Specifically, a series of layers may be organized into a map document in mxd format according to a business scenario, and the map document is published as a service on the server side for the client to call.
The step further configures a plurality of data topics according to the service scene, such as data topic 1, data topic 2, data topic 3 and the like according to the service scene, and configures and records relevant basic configuration information of each data topic, such as layer names of each layer forming the data topic, layer id, url of map service to which each layer belongs.
The following are exemplified:
assuming that a service needs to be issued in a certain service scene, the service scene includes a series of layers such as layer 1, layer 2, layer 3, layer 4, etc., and data topics such as data topic 1, data topic 2, data topic 3, etc. exist according to the service scene, assuming that the data topic 1 is composed of the layer 2, the layer 3, and the layer 4, the data topic 1 may be configured as follows, but not limited to:
through the preprocessing process of the embodiment, the early preparation work of the single-graph-layer service loading is completed, so that the service release and data thematic configuration basis is provided for the realization of the single-graph-layer service loading.
An application example of the method of the present application is provided below by way of an embodiment.
Referring to fig. 3, a data topic includes four layers a, b, c, and d, if the data topic is loaded in a conventional data topic rendering manner, a client initiates a service request, request parameters include the map service url and layer information of a, b, c, and d, in a GIS server, the layers a, b, c, and d are rendered one by one in combination with the left part of the arrow in fig. 3, and finally a complete picture is generated and responds to the front-end client. In the application, with reference to the right part of the arrow in fig. 3, one service request of the data topic is converted into 4 instance requests, the request parameter of each instance request only contains one layer information, 4 single-layer service instances are correspondingly generated, layers in each service instance are rendered in parallel based on a multi-request concurrency technology, and when the layer rendering of any service instance is completed, a front-end request is immediately responded without waiting for the completion of the rendering of the layers of all other service instances.
That is to say, the response rate of the conventional loading scheme depends on the layer that completes the slowest rendering, and the loading response rate in the application depends on the layer that completes the fastest rendering, so that the application is greatly improved in the loading rate compared with the conventional scheme, the user experience is better in the application system operation, and the service release of multiple layers (rather than single layers) is performed in the early stage, so that the number of servers does not need to be increased.
Corresponding to the above spatial data loading method, an embodiment of the present application further discloses a spatial data loading apparatus, as shown in fig. 4, the apparatus includes:
an obtaining module 401, configured to obtain a service request of a client, where the service request includes configuration information of a target data topic;
a determining module 402, configured to determine, according to the configuration information, a service address of a target service requested by the target data topic and a layer identifier of each target layer requested in the target service;
a creating module 403, configured to create, according to a service address of a requested target service and a layer identifier of each target layer, a single-layer service instance including the target layer for each target layer, so as to obtain a service instance set;
the layer processing module 404 is configured to perform rendering processing on a target layer in each service instance of the service instance set, and load rendered layer data to a client when layer rendering of any service instance is completed.
In an embodiment, the determining module 402 is specifically configured to:
processing the configuration information of the target data topic to obtain a service array, wherein each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer;
and extracting the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service from each subitem of the service array.
In an embodiment, the creating module 403 is specifically configured to:
generating a plurality of example requests according to the service address of the requested target service and the layer identifier of each target layer, wherein each example request corresponds to each target layer one by one, and each example request comprises the layer identifier of the corresponding target layer and the service address of the target service to which the target layer belongs;
and creating a single-graph-layer service instance comprising the target graph layer for each target graph layer according to each instance request.
In an embodiment, the layer processing module 404 is specifically configured to:
based on a multi-request concurrent mode, performing parallel rendering processing on target layers in each service instance;
and when the layer rendering of any service instance is finished, loading the rendered layer data to a client map in real time.
In one embodiment, the apparatus further comprises:
a pre-processing module to:
configuring a map document comprising a plurality of map layers according to business requirements, and issuing a map service to a server side based on the map document;
configuring a plurality of data topics according to a service scene; wherein each data topic is formed by combining a corresponding number of layers.
For the spatial data loading device disclosed in the embodiment of the present application, since it corresponds to the spatial data loading method disclosed in each of the above method embodiments, the description is relatively simple, and for the relevant similarities, please refer to the description of the corresponding method embodiments above, and detailed description is omitted here.
It should be noted that, in the present specification, the embodiments are all described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments may be referred to each other.
For convenience of description, the above system or apparatus is described as being divided into various modules or units by function, respectively. Of course, the functionality of the units may be implemented in one or more software and/or hardware when implementing the present application.
From the above description of the embodiments, it is clear to those skilled in the art that the present application can be implemented by software plus necessary general hardware platform. Based on such understanding, the technical solutions of the present application may be essentially or partially implemented in the form of a software product, which may be stored in a storage medium, such as a ROM/RAM, a magnetic disk, an optical disk, etc., and includes several instructions for enabling a computer device (which may be a personal computer, a server, or a network device, etc.) to execute the method according to the embodiments or some parts of the embodiments of the present application.
Finally, it is further noted that, herein, relational terms such as first, second, third, fourth, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The foregoing is only a preferred embodiment of the present application and it should be noted that those skilled in the art can make several improvements and modifications without departing from the principle of the present application, and these improvements and modifications should also be considered as the protection scope of the present application.
Claims (10)
1. A method for loading spatial data, the method comprising:
acquiring a service request of a client, wherein the service request comprises configuration information of a target data topic;
determining a service address of a target service requested by the target data special topic and layer identifiers of all target layers requested in the target service according to the configuration information;
according to the service address of the requested target service and the layer identifier of each target layer, creating a single-layer service instance comprising the target layer for each target layer to obtain a service instance set;
and rendering a target layer in each service instance of the service instance set, and loading the rendered layer data to the client when the layer rendering of any service instance is completed.
2. The method according to claim 1, wherein the determining, according to the configuration information, a service address of a target service requested by the target data topic and layer identifiers of each target layer requested in the target service includes:
processing the configuration information of the target data topic to obtain a service array, wherein each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer;
and extracting the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service from each subitem of the service array.
3. The method according to claim 1, wherein the creating, for each target layer, a single-layer service instance including the target layer according to the service address of the requested target service and the layer identifier of each target layer comprises:
generating a plurality of example requests according to the service address of the requested target service and the layer identifier of each target layer, wherein each example request corresponds to each target layer one by one, and each example request comprises the layer identifier of the corresponding target layer and the service address of the target service to which the target layer belongs;
and creating a single-graph-layer service instance comprising the target graph layer for each target graph layer according to each instance request.
4. The method according to claim 3, wherein the rendering processing is performed on the target layer in each service instance of the service instance set, and when layer rendering of any service instance is completed, the layer data whose rendering is completed is loaded to the client, including:
based on a multi-request concurrent mode, performing parallel rendering processing on target layers in each service instance;
and when the layer rendering of any service instance is finished, loading the rendered layer data to a client map in real time.
5. The method according to any of claims 1-4, further comprising, before the obtaining the service request of the client:
configuring a map document comprising a plurality of map layers according to business requirements, and issuing a map service to a server side based on the map document;
configuring a plurality of data topics according to a service scene; wherein each data topic is formed by combining a corresponding number of layers.
6. An apparatus for spatial data loading, the apparatus comprising:
the system comprises an acquisition module, a processing module and a processing module, wherein the acquisition module is used for acquiring a service request of a client, and the service request comprises configuration information of a target data topic;
the determining module is used for determining a service address of a target service requested by the target data special topic and layer identifiers of all target layers requested in the target service according to the configuration information;
the creating module is used for creating a single-graph-layer service instance comprising a target graph layer for each target graph layer according to the service address of the requested target service and the graph layer identifier of each target graph layer to obtain a service instance set;
and the layer processing module is used for rendering a target layer in each service instance of the service instance set, and loading the rendered layer data to the client when the layer rendering of any service instance is completed.
7. The apparatus of claim 6, wherein the determining module is specifically configured to:
processing the configuration information of the target data topic to obtain a service array, wherein each sub-item in the service array corresponds to each target layer of the target data topic request one by one, and each sub-item comprises preset basic information of the corresponding target layer;
and extracting the service address of the target service requested by the target data topic and the layer identifier of each target layer requested in the target service from each subitem of the service array.
8. The apparatus of claim 6, wherein the creation module is specifically configured to:
generating a plurality of example requests according to the service address of the requested target service and the layer identifier of each target layer, wherein each example request corresponds to each target layer one by one, and each example request comprises the layer identifier of the corresponding target layer and the service address of the target service to which the target layer belongs;
and creating a single-graph-layer service instance comprising the target graph layer for each target graph layer according to each instance request.
9. The apparatus according to claim 8, wherein the layer processing module is specifically configured to:
based on a multi-request concurrent mode, performing parallel rendering processing on target layers in each service instance;
and when the layer rendering of any service instance is finished, loading the rendered layer data to a client map in real time.
10. The apparatus of claim 6, further comprising:
a pre-processing module to:
configuring a map document comprising a plurality of map layers according to business requirements, and issuing a map service to a server side based on the map document;
configuring a plurality of data topics according to a service scene; wherein each data topic is formed by combining a corresponding number of layers.
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| CN116740248A (en) * | 2023-08-08 | 2023-09-12 | 摩尔线程智能科技(北京)有限责任公司 | Control method, chip and device, controller, equipment and medium for distributing image blocks |
| CN116880737A (en) * | 2023-09-06 | 2023-10-13 | 成都中科合迅科技有限公司 | Graph drawing control method and system |
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| CN113946399B (en) | 2023-07-21 |
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