CN107784085B - Data list exporting method and terminal thereof - Google Patents
Data list exporting method and terminal thereof Download PDFInfo
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- CN107784085B CN107784085B CN201710919421.8A CN201710919421A CN107784085B CN 107784085 B CN107784085 B CN 107784085B CN 201710919421 A CN201710919421 A CN 201710919421A CN 107784085 B CN107784085 B CN 107784085B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/25—Integrating or interfacing systems involving database management systems
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F16/00—Information retrieval; Database structures therefor; File system structures therefor
- G06F16/20—Information retrieval; Database structures therefor; File system structures therefor of structured data, e.g. relational data
- G06F16/24—Querying
- G06F16/245—Query processing
- G06F16/2458—Special types of queries, e.g. statistical queries, fuzzy queries or distributed queries
Abstract
The invention is suitable for the technical field of data processing, and provides a method for exporting a data list and a terminal thereof, wherein the method comprises the following steps: displaying a data query result according to a data query request sent by a user terminal; receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result; sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be derived, and respectively generating at least one data sub-list according to the data extracted each time; and sending the data sublist to the user terminal. The invention solves the problems that in the existing data export technology, all exported data are packaged in a data list for export, the export failure is caused by the fact that the number of data lines of the data list exceeds the maximum accommodating number of lines, the data export failure rate is high, and the data export efficiency is reduced.
Description
Technical Field
The invention belongs to the technical field of data processing, and particularly relates to a data list exporting method and a terminal thereof.
Background
As various files are electronized, the amount of data contained in the database is becoming larger. In daily work and life, users often need to query and export a corresponding data list through a database, and therefore how to efficiently export the data list is important. When the data list required to be exported by the user contains a large amount of data, because all exported data are encapsulated in one data list for exporting in the existing data exporting technology, the situation that the data line number of the data list exceeds the maximum accommodating line number to cause exporting failure often occurs, the failure rate of data exporting is high, and the data exporting efficiency is reduced.
Disclosure of Invention
In view of this, embodiments of the present invention provide a method for exporting a data list and a terminal thereof, so as to solve the problems that in the existing data exporting technology, all exported data are packaged in one data list for exporting, and often, the data line number of the data list exceeds the maximum accommodating line number, which causes the export failure, the failure rate of data export is high, and the export efficiency of data is reduced.
A first aspect of an embodiment of the present invention provides a method for exporting a data list, where the method for exporting a data list includes:
displaying a data query result according to a data query request sent by a user terminal;
receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result;
sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported, and respectively generating at least one data sub-list according to the data extracted each time;
and sending the data sublist to the user terminal.
A second aspect of the embodiments of the present invention provides a terminal device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, where the processor implements the following steps when executing the computer program:
displaying a data query result according to a data query request sent by a user terminal;
receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result;
sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported, and respectively generating at least one data sub-list according to the data extracted each time;
and sending the data sublist to the user terminal.
A third aspect of embodiments of the present invention provides a computer-readable storage medium storing a computer program which, when executed by a processor, implements the steps of:
displaying a data query result according to a data query request sent by a user terminal;
receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result;
sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported, and respectively generating at least one data sub-list according to the data extracted each time;
and sending the data sublist to the user terminal.
The data list exporting method and the terminal thereof provided by the embodiment of the invention have the following beneficial effects:
the embodiment of the invention receives the data query request of the user and displays the data query result required by the user, so that the user can select the data to be exported from the data query result, the exporting terminal of the data list only extracts the data with the row number matched with the preset maximum row number of the file each time after receiving the data exporting instruction of the user, generates a data sub-list, and then returns all the generated data sub-lists as exporting results to the user terminal. Compared with the existing data export technology, the export method of the data list provided by the embodiment of the invention does not encapsulate all data to be exported into one data list, but divides all the data to be exported into a plurality of data sub-lists for export according to the preset maximum number of lines of the file, so that the number of lines actually contained in each data sub-list cannot exceed the maximum number of lines of the file, the condition that the export fails due to overlarge data amount is avoided, and the success rate of the data export process is improved. On the other hand, due to the improvement of the success rate of data export, the times of repeatedly executing export operation by the user are reduced, and the efficiency of exporting the data list is improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.
Fig. 1 is a flowchart of an implementation of a method for exporting a data list according to a first embodiment of the present invention;
fig. 2 is a flowchart of a specific implementation of a method for exporting a data list according to a second embodiment of the present invention;
fig. 3 is a flowchart illustrating a specific implementation of a method S101 for exporting a data list according to a third embodiment of the present invention;
fig. 4 is a flowchart illustrating a specific implementation of the method S104 for exporting a data list according to a fourth embodiment of the present invention;
fig. 5 is a flowchart illustrating a specific implementation of the method S104 for exporting a data list according to a fifth embodiment of the present invention;
fig. 6 is a block diagram of a terminal for exporting a data list according to an embodiment of the present invention;
fig. 7 is a schematic diagram of a terminal device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The embodiment of the invention receives a data query request of a user and displays a data query result required by the user, so that the user can select data to be exported from the data query result, and after a data export terminal of a data list receives a data export instruction of the user, only data with the number of rows matched with the preset maximum number of rows of a file is extracted each time, and a data sub-list is generated, and then all the generated data sub-lists are returned to the user terminal as export results.
In the embodiment of the present invention, the main execution body of the process is a terminal device installed with a derivation program of a data list, and the terminal device includes an intelligent terminal such as a mobile phone, a computer device, a tablet computer, and a server, where a database for a user to query data may be stored in a memory provided in the intelligent terminal, or may be stored in an independent storage terminal, and in this case, the intelligent terminal obtains related data from the independent storage terminal through a communication network and responds to a data service request of the user. Fig. 1 shows a flowchart of an implementation of the method for exporting a data list according to the first embodiment of the present invention, which is detailed as follows:
in S101, a data query result is displayed according to a data query request sent by a user terminal.
In this embodiment, a user generates a data query request in a local user terminal, then connects to the terminal device provided in this embodiment through a communication network, and sends the data query request to the terminal device. Specifically, a user may input a keyword to be queried through a data service query interface of a user terminal, and after determining all queried keywords, click a corresponding query confirmation button in the query interface, and the user terminal generates a data query request according to the selection content and the input content of the user in the query interface and sends the data query request to a device corresponding to a destination address indicated by the query interface, that is, the terminal device provided in this embodiment, thereby completing the operation of sending the data query request. Preferably, the user can open the corresponding data service query interface through the APP or the client and other related application programs, in addition to opening the web page corresponding to the data service query interface through the browser installed in the user terminal, so as to complete the data query operation.
In this embodiment, after receiving a data query request sent by a user terminal, a terminal device queries data in a database, which is matched with a keyword, according to the keyword included in the data query request, and uses the data obtained through matching as a query result corresponding to the data query request, and then displays the query result. Specifically, if data matching the data query request does not exist in the database, a data absence message is displayed to the user terminal. Preferably, in this case, the terminal device may send a data update request to the other database so as to confirm whether the data contained in the current database is the latest data. Because the user terminal initiates a certain data query request, which indicates that the user can predict the data which can be matched with the corresponding data from the database, but the database can not be matched with the corresponding data, and the data in the database can not be successfully synchronized in real time, the user terminal can send a data update request to the previous database or other synchronous databases so as to judge whether the data in the current database is the latest data, and then search whether the data matched with the data query request exists from the latest database.
In this embodiment, the terminal device may display all query results in one page, so that the user can view all query data by scrolling the page. Because the data content which can be displayed on one interface is limited, under the condition, the terminal equipment only loads the top M query data results, wherein the M value is the number of the maximum query data results which can be accommodated in one page interface, and when a user slides down to view the data below, the terminal equipment loads the query data results at the corresponding positions again, so that the waiting time for displaying for the first time is avoided from being too long. In addition, the terminal equipment can display the query result in a paging mode, divide the query result into a plurality of pages, set corresponding numbers, and control the display interface to display the corresponding query result display pages by sending the corresponding numbers.
In S102, a data export instruction returned by the user terminal according to the data query result is received, and the data to be exported corresponding to the data export instruction is determined from the data query result.
In this embodiment, after acquiring the query result returned by the terminal device, the user terminal may select data to be exported from the query result. For example, the user may select data to be exported by checking, and if the query result is displayed by paging, the corresponding data page may be selected to represent that all query data in the data page is exported. Of course, the user may also export all query results, and perform a full selection operation by clicking a full selection button or all export buttons, or the like. After confirming the data which the user needs to export, the user terminal generates a data export instruction corresponding to the data, and returns the data export instruction to the terminal equipment.
In this embodiment, after receiving a data export instruction returned by a user terminal, a terminal device extracts a data identifier included in the data export instruction, determines data that the user needs to export according to the data identifier, and extracts from a query result to obtain data to be exported.
In S103, data with a line number matching a preset maximum line number of the file is sequentially extracted from the data to be exported, and at least one data sub-list is generated according to the data extracted each time.
In this embodiment, the user terminal presets a maximum number of lines of a file, where the maximum number of lines of the file is specifically used to display a maximum number of lines included in a data sub-list, so as to avoid occurrence of an abnormal transmission derivation due to an excessively large number of lines of data included in the data sub-list. For example, when the maximum row number of the file is 1000, each data sub-list may contain 1000 rows of data at most.
In this embodiment, the matching with the preset maximum number of rows of the file specifically includes: and the extraction line number is less than or equal to the maximum line number of the file. Specifically, after determining the data to be exported according to the data export instruction, the terminal device sequentially extracts data with corresponding line numbers from the data to be exported according to a preset file maximum line number, generates a data sub-list, and if the line number of the data to be exported which is not extracted is less than the file maximum line number, generates a last data sub-list from the data to be exported which is not extracted, and executes the operation of S104.
For example, the maximum line number of the file is 1000, and the data to be exported includes 3200 lines of data, so that the terminal device extracts 1000 lines of data each time to generate 3 data sub-lists, leaves 200 lines of data to be exported that is not extracted, and generates the last data sub-list from the remaining data to be exported that is not extracted, and performs the relevant operation of S104, where the line number of the data is less than the maximum line number of the file. Of course, if the data to be exported only includes 200 rows of data, only one data sub-list is generated, and the operation of S104 is performed.
In this embodiment, the preset maximum number of rows of the file may be set by a default of the terminal device, where the default is the maximum number of rows that can be actually accommodated by the data sub-list, for example, for a data list in an Excel format, the maximum number of rows of data that can be accommodated is 65000 rows. The user can also adjust the maximum line number of the file according to the reading habit of the user, but the numerical value of the maximum line number of the file set by the user should not exceed the default value.
Optionally, in this embodiment, the terminal device adjusts the maximum number of rows of the file according to the number of columns of the data to be exported, and specifically, if the number of columns of the data to be exported is greater than the standard number of columns, the maximum number of rows of the file is reduced according to a ratio of the excess portion to the standard number of columns; and if the number of columns of the data to be exported is less than the number of standard columns, increasing the maximum number of rows of the file according to the proportion of the exceeding part in the number of standard columns. Since export failures are typically related to the amount of data, an export failure may occur if the amount of data exceeds the maximum amount of data that can be accommodated by the file. Therefore, if the number of columns of the data to be exported is large and the amount of data is fixed, the maximum number of columns and the maximum number of rows are in inverse proportion, so that the number of rows capable of being accommodated is small; conversely, when the number of columns of data to be exported is smaller, more rows can be accommodated.
And in S104, sending the data sublist to the user terminal.
In this embodiment, after the terminal device generates at least one data sublist according to the data export instruction of the user, all the data sublists are sent to the user terminal, so as to achieve the purpose of responding to the data export page of the user. Specifically, the terminal device may send the data to the user terminal immediately after each data sub-list is generated, or after all the data sub-lists are generated, the terminal device summarizes all the data sub-lists and sends the data sub-lists to the user terminal in a unified manner.
In this embodiment, after generating all the data sub-lists, the terminal device determines whether the data to be exported contains data that is not exported through a preset data leak-checking algorithm, if so, determines whether the line number of the finally generated data sub-list is less than the maximum line number of the file, and if so, adds the data to be exported into the finally generated data sub-list; if so, an independent data sublist is generated.
It can be seen from the above that, in the export method of the data list provided in the embodiment of the present invention, by receiving the data query request of the user and displaying the data query result required by the user, the user can select the data to be exported from the data query result, after receiving the data export instruction of the user, the export terminal of the data list extracts only the data whose line number matches the preset maximum line number of the file each time, generates a data sub-list, and then returns all the generated data sub-lists to the user terminal as the export result. Compared with the existing data export technology, the export method of the data list provided by the embodiment of the invention does not encapsulate all data to be exported into one data list, but divides all the data to be exported into a plurality of data sub-lists for export according to the preset maximum number of lines of the file, so that the number of lines actually contained in each data sub-list cannot exceed the maximum number of lines of the file, the condition that the export fails due to overlarge data amount is avoided, and the success rate of the data export process is improved. On the other hand, due to the improvement of the success rate of data export, the times of repeatedly executing export operation by the user are reduced, and the efficiency of exporting the data list is improved.
Fig. 2 is a flowchart illustrating a specific implementation of a method for exporting a data list according to a second embodiment of the present invention. Referring to fig. 2, with respect to the embodiment shown in fig. 1, the method for exporting a data list provided in this embodiment includes the following steps, which are detailed as follows:
in S201, a data query result is displayed according to a data query request sent by a user terminal.
Since the implementation manner of S201 is completely the same as that of S101 in the embodiment corresponding to fig. 1, reference may be specifically made to the related description of S101 in the above embodiment, and details are not repeated here.
In S202, a data export instruction returned by the user terminal according to the data query result is received.
Since the implementation manner of S202 is completely the same as that of S102 in the embodiment corresponding to fig. 1, reference may be specifically made to the related description of S102 in the above embodiment, and details are not repeated here.
Further, the determining, from the data query result, data to be derived corresponding to the data derivation instruction includes:
in S203, the communication connection with the user terminal is disconnected, and after the communication connection is disconnected, the data to be exported corresponding to the data export instruction is determined from the data query result.
In this embodiment, the terminal device and the user terminal perform information interaction through the established communication connection, for example, the terminal device receives a data query request initiated by the user terminal, and the user terminal receives a query result returned by the terminal device, so that the terminal device and the user terminal inevitably occupy a corresponding port number to establish a communication connection during the data interaction, and perform data communication through the communication connection.
In this embodiment, after receiving a data export instruction sent by a user terminal, a terminal device disconnects communication with the user terminal, adjusts a corresponding port number from an occupied state to an idle state, and performs an operation of determining data to be exported corresponding to the data export instruction from the data query result. Because the time of the data export process is generally longer, and no data interaction exists between the terminal equipment and the user terminal in the export process, the terminal equipment is in a state of waiting for a result, and therefore, related communication resources can be released at the moment to reduce the occupation of network resources.
Optionally, when the terminal device performs an export operation on data, the terminal device may perform a communication connection with other user terminals through the released port number, and respond to a related data service operation. In this case, in order to improve the utilization rate of the terminal device, the relevant operation such as a data query operation or a data import operation initiated by another user terminal may be responded when the relevant export result is generated.
Optionally, the terminal device may return a service response confirmation instruction to the user terminal before disconnecting the communication connection, and after receiving the service response confirmation instruction, the user terminal indicates that the corresponding data export instruction is responding and disconnects the communication connection. In this case, the user terminal may determine whether the disconnection of the communication connection by the terminal device is an abnormal communication interruption or a normal communication interruption, so as to avoid the user from repeatedly connecting and initiate a plurality of data export operations. In this case, the user terminal may display a related dynamic picture in the result waiting page to prompt the user that the export operation is not in a down state during normal execution, so as to prevent the user from considering the operation as being stuck.
In S204, data whose line number matches a preset maximum line number of the file is sequentially extracted from the data to be exported, and at least one data sub-list is generated according to the data extracted each time.
Since the implementation manner of S203 is completely the same as that of S103 in the embodiment corresponding to fig. 1, reference may be specifically made to the related description of S103 in the above embodiment, and details are not repeated here.
Further, the sending the data sublist to the user terminal includes:
in S205, if it is detected that the data to be exported is extracted, a communication connection request is sent to the user terminal, so as to establish a communication connection with the user terminal.
In this embodiment, after determining that all the data to be exported have been extracted and the last data sub-list has been generated, the terminal device indicates that the export operation has been completed, and at this time, the terminal device may feed back the relevant export result to the user terminal. Therefore, a communication connection request is sent to the user terminal according to the network address of the user terminal, so that the user terminal can establish a communication link and feed back the relevant derivation result.
In this embodiment, after receiving the communication connection request sent by the terminal device, the user terminal returns a connection confirmation instruction to the terminal device, and after receiving the connection confirmation instruction returned by the user terminal, the terminal device determines that the communication connection is established, and may perform the relevant operation of S206.
In S206, a derivation result is generated according to the plurality of data sub-lists, and the derivation result is sent to the user terminal.
In this embodiment, since the terminal device may generate a plurality of data sub-lists in the process of exporting data, in this case, the plurality of data sub-lists are encapsulated in the same file, and the export result is generated. For example, the encapsulating in the same file may be that, in the form of a compressed packet, a plurality of data sub-lists are compressed in one compressed packet and combined into one compressed export result; or creating Sheet with the same quantity as the data sub-lists in the same Excel file, and importing the data of each data sub-list into each Sheet so as to encapsulate the data in one file. Since each Sheet corresponds to a separate list file, no export error occurs due to the number of lines exceeding the maximum number of lines that can be accommodated.
In this embodiment, after generating the export result, the terminal device will send the export result to the user terminal through the communication channel established in S205 to complete the response of exporting the data service. Optionally, the user terminal has a maximum waiting time, and starts timing after the user terminal sends the data export instruction, and if it is detected that the waiting time is greater than the maximum waiting time, establishes a communication connection with the terminal device, and sends an export progress acquisition instruction, so as to confirm the current export progress.
In the embodiment of the invention, after a data export instruction sent by a user is received, the communication connection between the user and the terminal is disconnected, the communication resource is released, the connection is established only after the export operation is finished, and the corresponding export result is returned to the user, so that the connection failure caused by long-time connection is avoided, the export result cannot be fed back to the user, on the other hand, the network resource is also released, the process of waiting for the result for a long time is adopted in the export process, the data interaction condition is less, and the terminal equipment can respond to the service requests of other user terminals, therefore, the embodiment can fully realize the time division multiplexing of the service of the terminal equipment, improve the utilization rate of the terminal equipment and reduce the occupancy rate of the export operation resource.
Fig. 3 shows a flowchart of a specific implementation of the method S101 for exporting a data list according to a third embodiment of the present invention. Referring to fig. 3, with respect to the embodiment shown in fig. 1, the method S101 for processing the client feedback information provided in this embodiment includes steps S301 to S303, which are detailed as follows:
further, the displaying the data query result according to the data query request sent by the user terminal includes:
in S301, the data query result matched with the data query request in the database and the number of data corresponding to the data query result are determined.
In this embodiment, after receiving a data query request from a user, a terminal device determines a data query result matching a query keyword in a database according to the query keyword included in the data query request, and in this step, the terminal device does not extract queried data, but marks data matching the query keyword in the database.
In this embodiment, after the terminal device finishes searching the whole database, a data query result is obtained, and all data to be displayed that are matched with the query keyword in the database are determined, at this time, the terminal device counts the number of data included in the query result, specifically, how many lines are included in the data list obtained by the query.
It should be noted that, if the terminal device and the database are integrated in the same device, the related operations of S301 are all executed in the storage module where the database is located, and if the terminal device and the database are not in the same device, the related operations of S301 are all executed in the device where the database is located; in both cases, the related operations of data extraction are not involved, so that the time required by the query process and the process of number statistics is short, and the response efficiency is high.
In S302, the data query result is divided into a plurality of subdata query results according to a preset maximum display number, and a display number is associated with each subdata query result.
In this embodiment, the terminal device is provided with a maximum display number, that is, the maximum display number represents the number of data or the number of list lines that can be displayed at one time in one page. The maximum display number can be set by default of the system, and can also be adjusted at any time by a user in the inquiry process. Preferably, the maximum display number is related to the resolution of the user terminal and the area of the display module, and the maximum number of data that can be accommodated in the same interface is determined as the maximum display number according to the resolution of the user terminal and the area of the display module.
In this embodiment, the terminal device divides the data query result into a plurality of sub-data query results according to a preset maximum display number and a number of data included in the data query result, where the number of data included in each sub-data query result is at most the maximum display number. Similar to the process of dividing the data to be exported into a plurality of data sub-lists in S103, the data amount of the last division may be smaller than the maximum display number, and the data number of the sub-query data results obtained by other divisions is equal to the maximum display number. The specific division process can refer to the related description of S103, which is not described herein.
In this embodiment, the terminal device associates a display number with each sub data query result, that is, the display number and the sub data query result are in a one-to-one correspondence relationship. Specifically, the terminal device may sort the data in the data query result according to a preset sorting manner, sequentially divide the data query result according to the maximum display number, and sequentially number the data query result.
In S303, according to the display number selected by the user terminal, the sub data query result associated with the display number is extracted from the database and displayed.
In this embodiment, the terminal device may extract the sub data query result associated with the display number from the database to the local cache according to the display number sent by the user terminal, and display data included in the sub data query result. That is, in this embodiment, the data size extracted from the database by the terminal device each time is the data size corresponding to the maximum display number.
Optionally, in this embodiment, after the terminal device completes the partitioning, the sub data query result with the most advanced display number is extracted by default and displayed. Such as displaying the sub data query result with the number 1. Because the user will not directly input the display number after clicking the query operation, the terminal device takes the subdata query result with the most advanced display number as the default subdata query result which is displayed firstly.
Optionally, in this embodiment, the sub-data query result displayed by the user is stored in the local cache region, and if the user detects that the display number input by the user is the displayed display number, the corresponding sub-data query result is directly extracted from the local cache region for display, without extracting from the database.
In the embodiment of the invention, the data volume extracted by the terminal equipment each time is the data volume corresponding to the maximum display number, and the terminal equipment does not extract all the inquired data at one time, so that the waiting time is short, the response speed is high, and the condition that the service response is overtime due to overlong extraction operation time is avoided.
Fig. 4 shows a flowchart of a specific implementation of the method S103 for exporting a data list according to a fourth embodiment of the present invention. Referring to fig. 4, with respect to the embodiment shown in fig. 1 to 3, in the method for exporting a data list provided in this embodiment, the extracting data whose line number matches a preset maximum line number of a file from the data to be exported in sequence, and generating at least one data sub-list according to the data extracted each time further includes S401 to S403, which are detailed as follows:
in S401, an export control instruction initiated by the user terminal is received.
In this embodiment, the export display page of the user terminal is provided with corresponding export control buttons by the AJAX technology. In the exporting process, a user can click a corresponding exporting control button on a local user terminal, and then after the user terminal receives a relevant click operation, a corresponding exporting control instruction is generated through the AJAX technology in the page and is sent to the terminal equipment.
In this embodiment, the derived control instruction includes, but is not limited to: suspend export instructions, terminate export instructions, resume export instructions, re-export instructions, etc.
In S402, adding the export control instruction to an extract operation control data stream; wherein the extraction operation control data flow is: and control data generated when the extraction operation is carried out between the export terminal of the data list and the database.
In this embodiment, during the exporting operation of the terminal device and the database, two data streams are generated between the terminal device and the database, which are respectively: extracting result data stream pointing to the terminal equipment by the database, namely extracting data stream generated by generating data sub-list; and a terminal device, that is, an extraction operation control data stream pointing to the database by the export terminal of the data list, for controlling the database to perform relevant extraction operations, such as sending control data, such as the maximum number of rows of a file, the number range of data to be exported in the current extraction operation, and the export control instruction, to the database.
In this embodiment, after receiving an export control instruction sent by a user terminal, a terminal device adds the export control instruction to the extraction operation control data stream, so that the control data stream is transmitted to a database to implement a corresponding export control operation.
In S403, if the fetch operation control data stream includes an export control instruction, an export control operation corresponding to the export control instruction is executed.
In this embodiment, if the database corresponding to the terminal device detects that the extraction operation control data stream includes the export control instruction, the corresponding export control operation is executed. Specifically, if the export control instruction is a pause export instruction, stopping data extraction operation, and waiting for the user to start the export process again; if the export control instruction is an export stopping instruction, ending the export response operation and deleting the generated data sub-list; and if the export control instruction is a recovery export instruction, continuing to execute the data extraction operation corresponding to the pause time, and generating a data sublist corresponding to the pause time.
In the embodiment of the invention, the user terminal can control the export operation of the terminal equipment at any time, thereby improving the operable range and user experience of the user.
Fig. 5 shows a flowchart of a specific implementation of the method S103 for exporting a data list according to a fifth embodiment of the present invention. Referring to fig. 5, with respect to the embodiment shown in fig. 1, S103 in the method for exporting a data list provided in this embodiment further includes S501 and S502, which are detailed as follows:
in S501, the value of the export response timer is reset after each generation of one of the data sub-lists.
In this embodiment, the terminal device sets a corresponding maximum operation duration in executing each relevant operation, and automatically repairs the abnormal operation. Therefore, the terminal device sets the maximum response time period in order to determine whether the derivation operation is abnormal.
In this embodiment, after each time the terminal device generates a data sub-list, the terminal device resets the value of the export response timer to avoid that the response time is too long due to too large exported data volume, and the terminal device is determined to export abnormal operation. On the other hand, the export response timer is also used for keeping the session between the terminal device and the database valid, and since the terminal device and the database need to keep a data interaction state for a long time in the export process, a session valid duration, namely a session value, is set between the terminal device and the database, and when the terminal device resets the value of the response timer, the session value is synchronously updated to maintain the session between the terminal device and the database valid.
In S502, if the value of the derived response timer is greater than the preset maximum response duration, a derived abnormal operation is performed.
In this embodiment, when detecting that the value of the export response timer is greater than the maximum response time, the terminal device determines that there is an abnormality in the current export operation, and therefore will execute the export abnormal operation. Specifically, the export exception operation may be: disconnecting the data connection with the database and restarting the database; and after the database is started, the connection is reestablished so as to perform the export operation again.
In the embodiment of the invention, the value of the export response timer is reset after one data sublist is generated every time, so that the session between the terminal equipment and the database is kept effective, and the condition of export overtime caused by overlarge data volume is avoided.
It should be understood that, the sequence numbers of the steps in the foregoing embodiments do not imply an execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation to the implementation process of the embodiments of the present invention.
Fig. 6 shows a block diagram of a terminal for exporting a data list according to an embodiment of the present invention, where the terminal for exporting a data list includes units for performing the steps in the corresponding embodiment of fig. 1. Please refer to fig. 1 and fig. 1 for the corresponding description of the embodiment. For convenience of explanation, only the portions related to the present embodiment are shown.
Referring to fig. 6, the export terminal of the data list includes:
a data query result display unit 61, configured to display a data query result according to a data query request sent by a user terminal;
a to-be-derived data determining unit 62, configured to receive a data deriving instruction returned by the user terminal according to the data query result, and determine, from the data query result, to-be-derived data corresponding to the data deriving instruction;
a data sub-list generating unit 63, configured to sequentially extract data with a line number matching a preset maximum line number of a file from the data to be exported, and generate at least one data sub-list according to the data extracted each time;
a data sub-list sending unit 64, configured to send the data sub-list to the user terminal.
Optionally, the data to be derived determining unit 62 includes:
the communication connection interruption unit is used for disconnecting the communication connection with the user terminal and determining the data to be exported corresponding to the data export instruction from the data query result after the communication connection is disconnected;
the data sub-list transmission unit 64 includes:
a communication connection reconnection unit, configured to send a communication connection request to the user terminal to establish a communication connection with the user terminal if it is detected that the data to be exported is extracted;
and the export result sending unit is used for generating an export result according to the plurality of data sub-lists and sending the export result to the user terminal.
Optionally, the data query result display unit 61 includes:
the data query result determining unit is used for determining the data query result matched with the data query request in a database and the number of data corresponding to the data query result;
the data query result dividing unit is used for dividing the data query result into a plurality of subdata query results according to the preset maximum display number and respectively associating display numbers with the subdata query results;
and the subdata query result display unit is used for extracting and displaying the subdata query result related to the display number from the database according to the display number selected by the user terminal.
Optionally, the data sub-list generating unit 63 includes:
the export control instruction receiving unit is used for receiving an export control instruction initiated by the user terminal;
an export control instruction adding unit for adding the export control instruction to the fetch operation control data stream; wherein the extraction operation control data flow is: control data generated when extraction operation is carried out between a data list export terminal and the database;
and the export control instruction response unit is used for executing the export control operation corresponding to the export control instruction if the extraction operation control data stream contains the export control instruction.
Optionally, the data sub-list generating unit 63 includes:
a response timer resetting unit for resetting the value of the derived response timer after each generation of one of the data sub-lists;
and the exception handling unit is used for executing export exception operation if the value of the export response timer is greater than the preset maximum response time length.
Therefore, the export terminal of the data category provided in the embodiment of the present invention can also receive a data query request from a user and display a data query result required by the user, so that the user can select data to be exported from the data query result, after receiving a data export instruction from the user, the export terminal of the data list extracts only data with a row number matching with a preset maximum row number of files each time and generates a data sub-list, and then returns all generated data sub-lists as export results to the user terminal. Compared with the existing data export technology, the export method of the data list provided by the embodiment of the invention does not encapsulate all data to be exported into one data list, but divides all the data to be exported into a plurality of data sub-lists for export according to the preset maximum number of lines of the file, so that the number of lines actually contained in each data sub-list cannot exceed the maximum number of lines of the file, the condition that the export fails due to overlarge data amount is avoided, and the success rate of the data export process is improved. On the other hand, due to the improvement of the success rate of data export, the times of repeatedly executing export operation by the user are reduced, and the efficiency of exporting the data list is improved.
Fig. 7 is a schematic diagram of a terminal device according to another embodiment of the present invention. As shown in fig. 7, the terminal device 7 of this embodiment includes: a processor 70, a memory 71 and a computer program 72, such as a derivation of a data list, stored in said memory 71 and operable on said processor 70. The processor 70, when executing the computer program 72, implements the steps in the above-described embodiments of the method for exporting data lists, such as S101 to S104 shown in fig. 1. Alternatively, the processor 70, when executing the computer program 72, implements the functions of the units in the above-described device embodiments, such as the functions of the modules 61 to 64 shown in fig. 6.
Illustratively, the computer program 72 may be divided into one or more units, which are stored in the memory 71 and executed by the processor 70 to accomplish the present invention. The one or more units may be a series of computer program instruction segments capable of performing specific functions, which are used to describe the execution process of the computer program 72 in the terminal device 7. For example, the computer program 72 may be divided into a data query result display unit, a data to be derived determination unit, a data sub-list generation unit, and a data sub-list transmission unit, and the specific functions of each unit are as follows:
the data query result display unit is used for displaying a data query result according to a data query request sent by the user terminal;
the data to be exported determining unit is used for receiving a data export instruction returned by the user terminal according to the data query result and determining the data to be exported corresponding to the data export instruction from the data query result;
the data sublist generating unit is used for sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported and respectively generating at least one data sublist according to the data extracted each time;
and the data sublist sending unit is used for sending the data sublist to the user terminal.
The terminal device 7 may be a desktop computer, a notebook, a palm computer, a cloud server, or other computing devices. The terminal device may include, but is not limited to, a processor 70, a memory 71. It will be appreciated by those skilled in the art that fig. 7 is merely an example of a terminal device 7 and does not constitute a limitation of the terminal device 7 and may comprise more or less components than shown, or some components may be combined, or different components, for example the terminal device may further comprise input output devices, network access devices, buses, etc.
The Processor 70 may be a Central Processing Unit (CPU), other general purpose Processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), a Field-Programmable Gate Array (FPGA) or other Programmable logic device, discrete Gate or transistor logic, discrete hardware components, etc. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like.
The memory 71 may be an internal storage unit of the terminal device 7, such as a hard disk or a memory of the terminal device 7. The memory 71 may also be an external storage device of the terminal device 7, such as a plug-in hard disk, a Smart Media Card (SMC), a Secure Digital (SD) Card, a Flash memory Card (Flash Card), and the like, which are provided on the terminal device 7. Further, the memory 71 may also include both an internal storage unit and an external storage device of the terminal device 7. The memory 71 is used for storing the computer program and other programs and data required by the terminal device. The memory 71 may also be used to temporarily store data that has been output or is to be output.
It will be apparent to those skilled in the art that, for convenience and brevity of description, only the above-mentioned division of the functional units and modules is illustrated, and in practical applications, the above-mentioned function distribution may be performed by different functional units and modules according to needs, that is, the internal structure of the apparatus is divided into different functional units or modules to perform all or part of the above-mentioned functions. Each functional unit and module in the embodiments may be integrated in one processing unit, or each unit may exist alone physically, or two or more units are integrated in one unit, and the integrated unit may be implemented in a form of hardware, or in a form of software functional unit. In addition, specific names of the functional units and modules are only for convenience of distinguishing from each other, and are not used for limiting the protection scope of the present application. The specific working processes of the units and modules in the system may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the above embodiments, the descriptions of the respective embodiments have respective emphasis, and reference may be made to the related descriptions of other embodiments for parts that are not described or illustrated in a certain embodiment.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
In the embodiments provided in the present invention, it should be understood that the disclosed apparatus/terminal device and method may be implemented in other ways. For example, the above-described embodiments of the apparatus/terminal device are merely illustrative, and for example, the division of the modules or units is only one logical division, and there may be other divisions when actually implemented, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit. The integrated unit can be realized in a form of hardware, and can also be realized in a form of a software functional unit.
The integrated modules/units, if implemented in the form of software functional units and sold or used as separate products, may be stored in a computer readable storage medium. Based on such understanding, all or part of the flow of the method according to the embodiments of the present invention may also be implemented by a computer program, which may be stored in a computer-readable storage medium, and when the computer program is executed by a processor, the steps of the method embodiments may be implemented. . Wherein the computer program comprises computer program code, which may be in the form of source code, object code, an executable file or some intermediate form, etc. The computer-readable medium may include: any entity or device capable of carrying the computer program code, recording medium, usb disk, removable hard disk, magnetic disk, optical disk, computer Memory, Read-Only Memory (ROM), Random Access Memory (RAM), electrical carrier wave signals, telecommunications signals, software distribution medium, and the like. It should be noted that the computer readable medium may contain content that is subject to appropriate increase or decrease as required by legislation and patent practice in jurisdictions, for example, in some jurisdictions, computer readable media does not include electrical carrier signals and telecommunications signals as is required by legislation and patent practice.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not substantially depart from the spirit and scope of the embodiments of the present invention, and are intended to be included within the scope of the present invention.
Claims (7)
1. A method for exporting a data list, comprising:
displaying a data query result according to a data query request sent by a user terminal;
receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result;
sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported, and respectively generating at least one data sub-list according to the data extracted each time; the maximum line number of the file is determined according to the column number of the data to be derived;
sending the data sublist to the user terminal;
the step of sequentially extracting data matched with the preset maximum line number of the file from the data to be exported and generating a data sub-list according to the data extracted each time comprises the following steps:
resetting the value of a derived response timer after each generation of a said data sub-list;
the export method further comprises:
if the value of the export response timer is larger than the preset maximum response time, export abnormal operation is executed;
the determining, from the data query result, data to be derived corresponding to the data derivation instruction includes:
disconnecting the communication connection with the user terminal, and determining the data to be exported corresponding to the data export instruction from the data query result after the communication connection is disconnected, wherein the method comprises the following steps: before disconnecting communication connection, sending a service response confirmation instruction to a user terminal, wherein the service response confirmation instruction is used for informing the user terminal that the data export instruction is responding, and disconnecting the communication connection with the user terminal;
the sending the data sublist to the user terminal includes:
if the data to be exported is detected to be extracted completely, sending a communication connection request to the user terminal so as to establish communication connection with the user terminal;
and generating a derivation result according to the plurality of data sub-lists, and sending the derivation result to the user terminal.
2. The exporting method according to claim 1, wherein the displaying the data query result according to the data query request sent by the user terminal comprises:
determining the data query result matched with the data query request in a database and the number of data corresponding to the data query result;
dividing the data query result into a plurality of subdata query results according to a preset maximum display number, and respectively associating a display number with each subdata query result;
and extracting and displaying the sub data query result associated with the display number from the database according to the display number selected by the user terminal.
3. The exporting method according to claim 1 or 2, wherein the sequentially extracting data with a number of lines matching a preset maximum number of lines of a file from the data to be exported, and generating at least one data sub-list according to the data extracted each time comprises:
receiving an export control instruction initiated by the user terminal;
adding the export control instruction to a fetch operation control data stream; wherein the extraction operation control data flow is: control data generated when extraction operation is carried out between a data list export terminal and a database;
and if the extraction operation control data stream contains a derivation control instruction, executing a derivation control operation corresponding to the derivation control instruction.
4. A terminal device comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, the processor implementing the following steps when executing the computer program:
displaying a data query result according to a data query request sent by a user terminal;
receiving a data export instruction returned by the user terminal according to the data query result, and determining data to be exported corresponding to the data export instruction from the data query result;
sequentially extracting data with the line number matched with the preset maximum line number of the file from the data to be exported, and respectively generating at least one data sub-list according to the data extracted each time; the maximum line number of the file is determined according to the column number of the data to be derived;
sending the data sublist to the user terminal;
the step of sequentially extracting data matched with the preset maximum line number of the file from the data to be exported and generating a data sub-list according to the data extracted each time comprises the following steps:
resetting the value of a derived response timer after each generation of a said data sub-list;
the steps further include:
if the value of the export response timer is larger than the preset maximum response time, export abnormal operation is executed;
the determining, from the data query result, data to be derived corresponding to the data derivation instruction includes:
disconnecting the communication connection with the user terminal, and determining the data to be exported corresponding to the data export instruction from the data query result after the communication connection is disconnected, wherein the method comprises the following steps: before disconnecting communication connection, sending a service response confirmation instruction to a user terminal, wherein the service response confirmation instruction is used for informing the user terminal that the data export instruction is responding, and disconnecting the communication connection with the user terminal;
the sending the data sublist to the user terminal includes:
if the data to be exported is detected to be extracted completely, sending a communication connection request to the user terminal so as to establish communication connection with the user terminal;
and generating a derivation result according to the plurality of data sub-lists, and sending the derivation result to the user terminal.
5. The terminal device according to claim 4, wherein the displaying the data query result according to the data query request sent by the user terminal comprises:
determining the data query result matched with the data query request in a database and the number of data corresponding to the data query result;
dividing the data query result into a plurality of subdata query results according to a preset maximum display number, and respectively associating a display number with each subdata query result;
and extracting and displaying the sub data query result associated with the display number from the database according to the display number selected by the user terminal.
6. The terminal device according to claim 4 or 5, wherein said sequentially extracting data whose line number matches a preset file maximum line number from the data to be exported, and generating at least one data sub-list according to the data extracted each time respectively comprises:
receiving an export control instruction initiated by the user terminal;
adding the export control instruction to a fetch operation control data stream; wherein the extraction operation control data flow is: control data generated when extraction operation is carried out between a data list export terminal and a database;
and if the extraction operation control data stream contains a derivation control instruction, executing a derivation control operation corresponding to the derivation control instruction.
7. A computer-readable storage medium, in which a computer program is stored which, when being executed by a processor, carries out the steps of the method according to any one of claims 1 to 3.
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| CN201710919421.8A CN107784085B (en) | 2017-09-30 | 2017-09-30 | Data list exporting method and terminal thereof |
| PCT/CN2018/077662 WO2019062019A1 (en) | 2017-09-30 | 2018-02-28 | Data list exporting method and terminal using same |
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| CN201710919421.8A CN107784085B (en) | 2017-09-30 | 2017-09-30 | Data list exporting method and terminal thereof |
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| CN110807058B (en) * | 2018-08-01 | 2024-04-12 | 北京京东尚科信息技术有限公司 | Method and system for exporting data |
| CN110309217B (en) * | 2019-05-30 | 2024-03-08 | 平安科技（深圳）有限公司 | Data import and export method and device, terminal and computer readable storage medium |
| CN112383313B (en) * | 2020-10-10 | 2023-08-04 | 中科驭数（北京）科技有限公司 | Parallel data decoding device and method |
| CN112650805A (en) * | 2020-12-30 | 2021-04-13 | 杭州贝嘟科技有限公司 | Data export method and device, computer equipment and readable storage medium |
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