CN111010418A - Geoserver data acquisition method, terminal and storage medium - Google Patents

Geoserver data acquisition method, terminal and storage medium Download PDF

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CN111010418A
CN111010418A CN201911022003.4A CN201911022003A CN111010418A CN 111010418 A CN111010418 A CN 111010418A CN 201911022003 A CN201911022003 A CN 201911022003A CN 111010418 A CN111010418 A CN 111010418A
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刘博方
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Shenzhen Putian Yitong Technologies Co ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L67/00—Network arrangements or protocols for supporting network services or applications
    • H04L67/01—Protocols
    • H04L67/02—Protocols based on web technology, e.g. hypertext transfer protocol [HTTP]
    • G—PHYSICS
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    • G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
    • G06F16/29—Geographical information databases
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L12/00—Data switching networks
    • H04L12/28—Data switching networks characterised by path configuration, e.g. LAN [Local Area Networks] or WAN [Wide Area Networks]
    • H04L12/46—Interconnection of networks
    • H04L12/4633—Interconnection of networks using encapsulation techniques, e.g. tunneling
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
    • H04L63/00—Network architectures or network communication protocols for network security
    • H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
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Abstract

The invention provides a method, a terminal and a storage medium for acquiring Geoserver data, which comprise the following steps: the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background; and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end. The invention can receive the request and the map data parameter sent by the front end through the preset route in the background, and forwards the map data parameter to the Geoserver, so as to obtain the Geoserver map data corresponding to the map data parameter from the Geoserver, thereby enabling the front end to normally obtain the map data of the Geoserver.

Description

Geoserver data acquisition method, terminal and storage medium
Technical Field
The invention relates to the technical field of software development, in particular to a method, a terminal and a storage medium for acquiring Geoserver data.
Background
The Geoserver is implemented by J2EE specified by an OpenGIS Web server, can conveniently release map data, allows users to update, delete and insert feature data, and can easily and quickly share spatial geographic information among the users. Geoserver is a community open source project.
Under the existing conditions, map data published based on Geoserver cannot be normally acquired in part of browsers, for example, cannot be normally acquired in an IE browser.
Therefore, the prior art has defects and needs to be improved and developed.
Disclosure of Invention
The technical problem to be solved by the present invention is to provide a method, a terminal and a storage medium for acquiring Geoserver data, aiming at solving the problem that part of browsers in the prior art cannot normally acquire map data issued by Geoserver.
The technical scheme adopted by the invention for solving the technical problem is as follows:
a method for acquiring Geoserver data comprises the following steps:
the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background;
and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end.
Further, the receiving, by the preset route of the background, the request instruction for accessing the Geoserver, accessing an address of the Geoserver, obtaining Geoserver map data corresponding to the map data parameter, and sending the Geoserver map data to the front end specifically includes:
a preset route of the background receives the map data parameters and a request instruction for accessing the Geoserver, accesses the address of the Geoserver and forwards the map data parameters to the Geoserver;
generating corresponding Geoserver map data in the Geoserver according to the map data parameters;
and the preset route encapsulates the Geoserver map data and sends the encapsulated Geoserver map data to the front end.
Further, the receiving, by the preset route of the background, the request instruction for accessing Geoserver, accessing an address of Geoserver, obtaining Geoserver map data corresponding to the map data parameter, and sending the Geoserver map data to the front end, and then includes:
and the front end acquires the Geoserver map data and loads and uses the Geoserver map data.
Further, the receiving, by the preset route of the background, the request instruction for accessing the Geoserver, accessing an address of the Geoserver, obtaining Geoserver map data corresponding to the map data parameter, and sending the Geoserver map data to the front end specifically includes:
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver and obtains Geoserver map data corresponding to the map data parameter;
and the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end.
Further, the receiving, by a preset route in the background, the request instruction for accessing Geoserver, accessing an address of Geoserver, and obtaining Geoserver map data corresponding to the map data parameter, further includes:
and the preset route authenticates the front end, and when authentication fails, the preset route does not send the Geoserver map data to the front end.
Further, the front end is an IE browser.
The invention also provides a terminal, which comprises a processor and a memory connected with the processor, wherein the memory stores a Geoserver data acquisition program, and the Geoserver data acquisition program realizes the following steps when being executed by the processor;
the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background;
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to a front end;
the processor is used for calling the Geoserver data acquisition program instruction.
Further, when the Geoserver data acquisition program is executed by the processor, the following steps are also implemented:
a preset route of the background receives the map data parameters and a request instruction for accessing the Geoserver, accesses the address of the Geoserver and forwards the map data parameters to the Geoserver;
generating corresponding Geoserver map data in the Geoserver according to the map data parameters;
the preset route encapsulates the Geoserver map data and sends the encapsulated Geoserver map data to a front end;
the front end acquires the Geoserver map data and loads the Geoserver map data for use;
the front end is an IE browser.
Further, when the Geoserver data acquisition program is executed by the processor, the following steps are also implemented:
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver and obtains Geoserver map data corresponding to the map data parameter;
the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end;
and the preset route authenticates the front end, and when authentication fails, the preset route does not send the Geoserver map data to the front end.
The present invention also provides a storage medium, wherein the storage medium stores a computer program, and the computer program can be executed to implement the Geoserver data acquisition method as described above.
The invention provides a method, a terminal and a storage medium for acquiring Geoserver data, which comprise the following steps: the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background; and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end. The method can receive the request and the map data parameters sent by the front end through the preset route in the background, when the front end sends a request instruction for accessing the Geoserver, the preset route in the background is accessed firstly, the preset route receives the request instruction for accessing the Geoserver and forwards the map data parameters to the Geoserver, and further the Geoserver map data corresponding to the map data parameters are obtained from the Geoserver, and the Geoserver map data are sent to the front end, so that the front end can normally obtain the Geoserver map data.
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FIG. 1 is a flow chart of a method for acquiring Geoserver data in the present invention.
Fig. 2 is a functional block diagram of a preferred embodiment of the terminal of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1, fig. 1 is a flowchart of a Geoserver data acquisition method according to the present invention. As shown in fig. 1, a method for acquiring Geoserver data according to an embodiment of the present invention includes the following steps:
the front end in the invention refers to a browser, and the scheme in the invention is applied to an IE browser for description, but it can be understood that the technical scheme in the invention is not limited to be applied to an IE browser, and can also be applied to most browsers in the market, such as webkit kernels (including google, 360, QQ, dog search), fireFox kernels (fire fox), and the like, and the front end which needs to normally acquire Geoserver data can use the technical scheme in the invention. The background of the invention comprises: geoserver and node.js, through writing related codes on the Geoserver and node.js, the connection and data transmission between the Geoserver and node.js can be realized.
S100, the front end receives a user instruction, forms a map data parameter, and sends a request instruction for accessing the Geoserver to the background.
Specifically, when the front end accesses the address of Geoserver and when a user executes operation on the IE browser to form a map data parameter, the front end sends a request instruction for accessing the map data of Geoserver to the background.
S200, receiving a request instruction for accessing the Geoserver by a preset route of the background, accessing the address of the Geoserver, obtaining Geoserver map data corresponding to the map data parameter, and sending the Geoserver map data to the front end.
The step S200 specifically includes:
s210, receiving the map data parameter and a request instruction for accessing the Geoserver by a preset route of the background, accessing the address of the Geoserver, and forwarding the map data parameter to the Geoserver.
Specifically, when a front end sends a request instruction for accessing the map data of Geoserver to a background, a route of the background is accessed first, the route can receive a request and parameters of the front end, and the background forwards the map data parameters of the front end to an address interface issued by Geoserver through the route. Further, the route accesses the address of the URL in the background, that is, accesses the address of Geoserver, and transmits the map data parameter to Geoserver through an address interface accessing Geoserver. The routing implementation forwards partial codes of the map data parameters and requests as follows:
router.get(‘/api/geoserver/ows’,controller.api.geoserver.ows)；
router.post(‘/api/geoserver/ows’,controller.api.geoserver.ows)；
the route described in the invention is compiled in the background using node. The route refers to two requests, namely a GET request and a POST request, the GET request and the POST request are both used for forwarding a front-end request to the Geoserver, and when the front end (client) accesses the address of "/api/Geoserver/ows", the route provided by the background of the invention is actually accessed.
GET and POST requests are two basic methods of HTTP requests. The interaction between the browser and the server is performed by the HTTP protocol, which works as a request-response protocol between the client and the server. Wherein, GET: acquiring data from a server; POST: submitting the data to a server. GET is the process of adding a parameter data queue to the URL pointed by the ACTION attribute of the submitted form, with the values corresponding one-to-one to the fields in the form, as seen in the URL. POST transfers each field in the form, along with its contents placed in HTML HEADER, to the URL address pointed by the ACTION attribute through the http POST mechanism.
Js is a JavaScript running environment based on Chrome V8 engine. Js uses an event-driven, non-blocking I/O model. Node is a development platform for operating JavaScript at a server, and the JavaScript becomes a scripting language which is flush with the languages of the server such as PHP, Python, Perl, Ruby and the like.
And S220, generating corresponding Geoserver map data in the Geoserver according to the map data parameters.
And acquiring returned data from the Geoserver by using the GET request in the route, namely acquiring the Geoserver map data corresponding to the request for accessing the Geoserver map data, and further realizing that the preset route acquires the returned data (namely the Geoserver map data corresponding to the map data) from the Geoserver.
The data returned by Geoserver may be geojson or xml, which is a standard GIS industry data (which stores geometric objects (points, lines, faces) that may represent geographic locations, and which may store other field attributes in addition to basic latitude and longitude location information), and is widely used in the industry.
GeoJSON is a format that encodes various geographic data structures. The GeoJSON object may represent a geometry, a feature, or a set of features. GeoJSON supports the following geometry types: point, line, face, multipoint, multiline, multifaceted and geometric collections. The features in GeoJSON contain a geometric object and other attributes, and the feature set represents a series of features.
And S230, encapsulating the Geoserver map data by the preset route, and sending the encapsulated Geoserver map data to a front end.
The result value in the route is the data returned by the Geoserver (i.e. the Geoserver map data), and the data returned by the Geoserver is forwarded to the front end by using return.
The implementation in the background code is partly as follows:
Figure BDA0002247514970000071
Figure BDA0002247514970000081
the step S200 further includes:
and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver and obtains Geoserver map data corresponding to the map data parameter.
And the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end.
And the preset route authenticates the front end, and when authentication fails, the preset route does not send the Geoserver map data to the front end.
Specifically, the technology for configuring and authenticating the route and using the authentication is realized through JWT, when a front end accesses a request provided by the background of the front end, a valid token must be provided, otherwise, the background will task the request as an unsafe request and will not return data. tokens are typically obtained and stored on their own when the front-end accesses the back-end login request.
For the authentication configuration of the route forwarding data, the implementation mode of the used codes is as follows:
Figure BDA0002247514970000082
when a preset route of a background encapsulates the Geoserver map data, the preset route can judge whether authentication is opened to the front end, and only when the authentication is opened, the preset route sends the encapsulated Geoserver map data to the front end; and when the authentication is not opened, presetting a route and sending the encapsulated Geoserver map data to the front end. The safety of data transmission can be ensured by authenticating the route, the data transmission limit of the front end can be judged through the route, the front end for receiving data can be flexibly screened, and the safety and the flexibility provided by background data are improved.
And S400, the front end acquires the map data and loads and uses the map data.
The front end obtains the data load use (actually, the map data of the Geoserver) forwarded by the route, and the map data issued by the Geoserver can be directly accessed on the IE browser after being forwarded. Because the map data of the Geoserver obtained by the front end is forwarded through the route of the background, the front end always accesses the address of the route in the background, and the front end cannot directly access the address of the Geoserver, so that the safety of the map data in the Geoserver is ensured. Furthermore, the route can authenticate and judge the front end, so that the safety of the route is improved, and therefore, the invention ensures that the IE browser can normally acquire the map data of the Geoserver and also improves the safety performance of data transmission between the Geoserver and the IE browser by carrying out double safety protection on the map data of the Geoserver.
The present invention further provides a terminal, as shown in fig. 2, including a processor, and a memory connected to the processor, where the memory stores a Geoserver data acquisition program, and the Geoserver data acquisition program implements the following steps when executed by the processor;
a100, receiving a user instruction by a front end, forming a map data parameter, and sending a request instruction for accessing the Geoserver to a background;
a200, receiving the request instruction for accessing the Geoserver by a preset route of a background, accessing the address of the Geoserver, obtaining Geoserver map data corresponding to the map data parameter, and sending the Geoserver map data to a front end;
the processor is used for calling the Geoserver data acquisition program instruction.
In the step a200, when the Geoserver data obtaining program is executed by the processor, the following steps are further implemented:
a210, receiving the map data parameter and a request instruction for accessing the Geoserver by a preset route of a background, accessing an address of the Geoserver, and forwarding the map data parameter to the Geoserver.
And A220, generating corresponding Geoserver map data in the Geoserver according to the map data parameters.
And A230, encapsulating the Geoserver map data by the preset route, and sending the encapsulated Geoserver map data to a front end.
And the front end acquires the Geoserver map data and loads and uses the Geoserver map data.
The front end is an IE browser.
In the step a200, when the Geoserver data obtaining program is executed by the processor, the following steps are further implemented:
and A210, receiving the request instruction for accessing the Geoserver by a preset route of the background, accessing the address of the Geoserver, and obtaining Geoserver map data corresponding to the map data parameter.
And A210, the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end.
And A210, the preset route authenticates the front end, and when the authentication fails, the preset route does not send the Geoserver map data to the front end.
The present invention also provides a storage medium, wherein the storage medium stores a computer program, the computer program is executable to implement the Geoserver data acquisition method as claimed above, in particular as described above.
In summary, the Geoserver data acquiring method, the terminal and the storage medium disclosed by the present invention include: the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background; and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end. The method comprises the steps that a request and map data parameters sent by a front end can be received through a preset route in a background, when a request instruction for accessing the Geoserver is sent by the front end, the preset route in the background is accessed firstly, the preset route receives the request instruction for accessing the Geoserver and forwards the map data parameters to the Geoserver, and further Geoserver map data corresponding to the map data parameters are obtained from the Geoserver, and the Geoserver map data are sent to the front end, so that the front end can normally obtain the Geoserver map data; the invention also sets authentication on the preset route, can ensure the safety of data transmission by authenticating the route, can judge the data transmission limit of the front end by the route, flexibly screens the front end of the received data, and improves the safety and the flexibility provided by the background data.
It is to be understood that the invention is not limited to the examples described above, but that modifications and variations may be effected thereto by those of ordinary skill in the art in light of the foregoing description, and that all such modifications and variations are intended to be within the scope of the invention as defined by the appended claims.

Claims (10)

1. A method for acquiring Geoserver data is characterized by comprising the following steps:
the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background;
and the preset route of the background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end.
2. The Geoserver data acquisition method according to claim 1, wherein the preset route of the background receives the request instruction for accessing Geoserver, accesses the address of Geoserver, acquires Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end, and specifically comprises:
a preset route of the background receives the map data parameters and a request instruction for accessing the Geoserver, accesses the address of the Geoserver and forwards the map data parameters to the Geoserver;
generating corresponding Geoserver map data in the Geoserver according to the map data parameters;
and the preset route encapsulates the Geoserver map data and sends the encapsulated Geoserver map data to the front end.
3. The Geoserver data acquisition method according to claim 1, wherein the preset route of the background receives the request instruction for accessing Geoserver, accesses the address of Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end, and then the method comprises:
and the front end acquires the Geoserver map data and loads and uses the Geoserver map data.
4. The Geoserver data acquisition method according to claim 1, wherein the preset route of the background receives the request instruction for accessing Geoserver, accesses the address of Geoserver, acquires Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to the front end, and specifically comprises:
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver and obtains Geoserver map data corresponding to the map data parameter;
and the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end.
5. The Geoserver data acquisition method according to claim 4, wherein a preset route in a background receives the request instruction for accessing Geoserver, accesses the address of Geoserver, and acquires Geoserver map data corresponding to the map data parameter, and further comprising:
and the preset route authenticates the front end, and when authentication fails, the preset route does not send the Geoserver map data to the front end.
6. The Geoserver data acquisition method of claim 1, wherein the front end is an IE browser.
7. A terminal, comprising a processor and a memory connected to the processor, wherein the memory stores a Geoserver data acquisition program, and the Geoserver data acquisition program implements the following steps when executed by the processor;
the front end receives a user instruction, forms a map data parameter and sends a request instruction for accessing the Geoserver to the background;
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver, obtains Geoserver map data corresponding to the map data parameter, and sends the Geoserver map data to a front end;
the processor is used for calling the Geoserver data acquisition program instruction.
8. The terminal of claim 7, wherein the Geoserver data acquisition program, when executed by the processor, further performs the steps of:
a preset route of the background receives the map data parameters and a request instruction for accessing the Geoserver, accesses the address of the Geoserver and forwards the map data parameters to the Geoserver;
generating corresponding Geoserver map data in the Geoserver according to the map data parameters;
the preset route encapsulates the Geoserver map data and sends the encapsulated Geoserver map data to a front end;
the front end acquires the Geoserver map data and loads the Geoserver map data for use;
the front end is an IE browser.
9. The terminal of claim 7, wherein the Geoserver data acquisition program, when executed by the processor, further performs the steps of:
a preset route of a background receives the request instruction for accessing the Geoserver, accesses the address of the Geoserver and obtains Geoserver map data corresponding to the map data parameter;
the preset route authenticates the front end, and when the authentication is successful, the preset route sends the Geoserver map data to the front end;
and the preset route authenticates the front end, and when authentication fails, the preset route does not send the Geoserver map data to the front end.
10. A storage medium, characterized in that it stores a computer program executable for implementing the Geoserver data acquisition method according to any one of claims 1 to 6.
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CN113516726A (en) * 2021-04-14 2021-10-19 上海地听信息科技有限公司 Noise map-based terminal and method for converting traffic flow into noise data
CN114491310A (en) * 2022-01-20 2022-05-13 国家电投集团雄安能源有限公司 Geographic information analysis method and system supporting multiple data sources

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