CN112131242A - Data rapid query method and device based on redis - Google Patents
Data rapid query method and device based on redis Download PDFInfo
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Abstract
The invention belongs to the technical field of computers, and discloses a data quick query method and a device based on redis, wherein the data quick query method based on redis comprises the following steps: receiving a data storage instruction, and setting data to be processed in an internal memory; storing the set data into a memory type database redis; and receiving a data query instruction, and selecting data corresponding to the data query instruction from a memory type database redis. The memory type database redis is arranged in the memory, when a data query instruction is received, the data corresponding to the data query instruction can be directly selected from the memory type database redis, the process of transferring the data from the position of the database to the memory is omitted, and the link of reading in and reading out the relational database during query is omitted, so that the computer can directly use the corresponding data for next processing, and the operation is convenient and fast.
Description
Technical Field
The invention belongs to the technical field of computers, and particularly relates to a data fast query method and device based on redis.
Background
Currently, the closest prior art: with the development of science and technology and the gradual popularization of computer technology, various industries have converted the originally complex production process into computer data for processing by applying the computer technology. When the computer data is used for processing the production process, firstly, data needing to be input (generally, the input data are data representing the working state of each device) is collected, then, the input data are transmitted to a data processor according to a preset rule for processing, and finally, corresponding data are output to control the device to carry out related production.
In the process of processing data by using a computer, most of the data is stored in the relational database, because the relational database can convert and store the data by using a uniform format, especially when the amount of data to be processed is very large, a large amount of storage space is consumed for storing the data on the computer, and the storage mode of the relational database can effectively reduce the occupation of the storage space of the computer, thereby accelerating the processing process of the data.
However, in the application process of the relational database, when data is required to be used for processing, relevant data needs to be inquired out first, but in the relational database, each inquiry needs to read and read the relational database, the processing method is very performance-consuming, so that the inquiry speed of the data is slow, and then the data is delivered to the data processor for processing.
In summary, the problems of the prior art are as follows: the problem of low speed when inquiring data in a relational database cannot be solved in the prior art.
The difficulty of solving the technical problems is as follows: the result of the business data needs to be redesigned, the complexity of business combination of the business data in single query is reduced, and the data query efficiency is improved.
The significance of solving the technical problems is as follows: the invention meets the requirement of redesigning the business data and the data result.
Disclosure of Invention
Aiming at the problems in the prior art, the invention provides a data rapid query method and device based on redis.
The invention is realized in such a way that a data fast query method based on redis comprises the following steps:
step one, receiving a data storage instruction, and setting data to be processed in an internal memory; storing the set data into a memory type database redis;
and step two, receiving a data query instruction, and selecting data corresponding to the data query instruction from a memory type database redis.
Further, in the first step, the receiving a data storage instruction, and setting data to be processed in the memory includes:
when a data storage instruction is received, sequentially configuring Key values for data to be processed in an internal memory type database redis;
sequentially configuring Value values comprising a plurality of JSON data strings for the data configured with the Key values in an internal memory type database redis;
and setting data to be processed in a memory type database redis in a Key-Value form.
Further, in step two, when the data query instruction is received, selecting data corresponding to the data query instruction from the memory type database redis includes:
when a data query instruction is received, selecting a Key value corresponding to the data query instruction from a memory type database redis;
selecting a Value corresponding to the data query instruction from a memory type database redis according to the corresponding Key Value;
and selecting the JSON data string corresponding to the data query instruction from a memory type database redis according to the corresponding Value.
Further, the method for rapidly querying data based on redis further comprises:
and when the data to be processed is applied to the website, sending the selected JSON data string to the website for display processing.
Another object of the present invention is to provide a redis-based data fast query apparatus implementing the redis-based data fast query method, the redis-based data fast query apparatus including:
the data storage module comprises a data setting unit and a data storage unit; the device comprises a memory type database redis, a storage and a processing module, wherein the memory type database redis is used for storing data to be processed into a memory;
the data query module comprises a Key Value query unit, a Value query unit and a data string query unit; the system comprises a data query instruction receiving module, a data query module and a data processing module, wherein the data query instruction is used for receiving a data query instruction and selecting data corresponding to the data query instruction from a memory type database redis;
and the website application module is used for sending the JSON data string to a website for display processing when the data to be processed is applied to the website.
Further, the data storage module includes:
the data setting unit comprises a Key Value configuration subunit, a Value configuration subunit and a data form configuration subunit; the data processing device is used for setting data to be processed in the memory when a data storage instruction is received;
and the data storage unit is used for storing the set data into the memory type database redis.
Further, the data setting unit includes:
the system comprises a Key value configuration subunit, a memory type database redis and a processing unit, wherein the Key value configuration subunit is used for sequentially configuring Key values for data to be processed in the memory type database redis when a data storage instruction is received;
the Value configuration subunit is used for sequentially configuring Value values for the data configured with the Key values in the internal memory type database redis;
and the data form configuration subunit is used for setting the data to be processed in a memory type database redis in a Key-Value form.
Further, the data query module comprises:
the system comprises a Key value query unit, a data query unit and a data processing unit, wherein the Key value query unit is used for selecting a Key value corresponding to a data query instruction from a memory type database redis when the data query instruction is received;
the Value query unit is used for selecting a Value corresponding to the data query instruction from a memory type database redis according to a corresponding Key Value;
and the data string query unit is used for selecting the JSON data string corresponding to the data query instruction from the internal memory type database redis according to the corresponding Value.
It is another object of the present invention to provide a computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement the redis-based data fast query method when executed on an electronic device.
Another object of the present invention is to provide a computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to execute the method for fast querying redis-based data.
In summary, the advantages and positive effects of the invention are: by turning pipeline on, we find that redis can process SET requests up to 70 ten thousand times per second, i.e., the processing time per SET command is a little more than 120 ns. Then where are the performance limits of redis? The elaboration of code by redis authors appears to exhaust software (language C), with the speed of hardware becoming the final performance barrier. 3 is the hardware speed of each level of the hardware given by google, note that the speed of the Main memory reference is 100ns, i.e. the set instruction speed of redis already close to the execution speed of the Main memory!
The invention provides a data fast query method and device based on redis, which improve the processing speed of selecting data from a database by setting a memory type database redis.
The memory type database redis is arranged in the memory, when a data query instruction is received, the data corresponding to the data query instruction can be directly selected from the memory type database redis, the process of transferring the data from the position of the database to the memory is omitted, and the link of reading in and reading out the relational database during query is omitted, so that the computer can directly use the corresponding data for next processing, and the operation is convenient and fast.
Drawings
Fig. 1 is a flowchart of a method for quickly querying data based on redis according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a system for rapidly querying data based on redis according to an embodiment of the present invention.
In the figure: 1. a data storage module; 2. a data query module; 3. a website application module; 4. a data setting unit; 5. a data storage unit; 6. a Key value query unit; 7. a Value query unit; 8. and a data string query unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following 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 problem of slow speed when inquiring data in a relational database cannot be solved in the prior art
Aiming at the problems in the prior art, the invention provides a data fast query method and a data fast query device based on redis, and the invention is described in detail below with reference to the accompanying drawings.
As shown in fig. 1, the method for fast querying data based on redis according to the embodiment of the present invention includes:
s101, receiving a data storage instruction, and setting data to be processed in an internal memory; and storing the set data into a memory type database redis.
S102, receiving a data query instruction, and selecting data corresponding to the data query instruction from a memory type database redis.
In step S101, the receiving a data storage instruction provided in the embodiment of the present invention, setting data to be processed in an internal memory includes:
when a data storage instruction is received, Key values are sequentially configured for data to be processed in an internal memory type database redis.
And sequentially configuring Value values comprising a plurality of JSON data strings for the data configured with the Key values in the internal memory type database redis.
And setting data to be processed in a memory type database redis in a Key-Value form.
In step S102, when a data query instruction is received, selecting data corresponding to the data query instruction from a memory type database redis according to an embodiment of the present invention includes:
when a data query instruction is received, selecting a Key value corresponding to the data query instruction from a memory type database redis.
And selecting a Value corresponding to the data query instruction from a memory type database redis according to the corresponding Key Value.
And selecting the JSON data string corresponding to the data query instruction from a memory type database redis according to the corresponding Value.
The method for rapidly querying data based on redis provided by the embodiment of the invention further comprises the following steps:
and when the data to be processed is applied to the website, sending the selected JSON data string to the website for display processing.
As shown in fig. 2, the apparatus for fast querying data based on redis according to an embodiment of the present invention includes:
the data storage module 1 comprises a data setting unit 4 and a data storage unit 5; for placing the data to be processed in a memory-type database redis arranged in a memory.
The data query module 2 comprises a Key Value query unit 6, a Value query unit 7 and a data string query unit 8; the data query module is used for receiving a data query instruction and selecting data corresponding to the data query instruction from a memory type database redis.
And the website application module 3 is used for sending the JSON data string to a website for display processing when the data to be processed is applied to the website.
The data storage module 1 provided by the embodiment of the invention comprises:
the data setting unit 4 comprises a Key Value configuration subunit, a Value configuration subunit and a data form configuration subunit; and the data processing device is used for setting the data to be processed in the memory when receiving the data storage instruction.
And the data storage unit 5 is used for storing the set data into the memory type database redis.
The data setting unit 4 provided by the embodiment of the present invention includes:
the system comprises a Key value configuration subunit, a memory type database redis and a processing unit, wherein the Key value configuration subunit is used for sequentially configuring Key values for data to be processed in the memory type database redis when a data storage instruction is received;
the Value configuration subunit is used for sequentially configuring Value values for the data configured with the Key values in the internal memory type database redis;
and the data form configuration subunit is used for setting the data to be processed in a memory type database redis in a Key-Value form.
The data query module 2 provided by the embodiment of the invention comprises:
and the Key value query unit 6 is configured to, when a data query instruction is received, select a Key value corresponding to the data query instruction from the memory-type database redis.
And the Value query unit 7 is configured to select, according to the corresponding Key Value, a Value corresponding to the data query instruction from the internal memory type database redis.
And the data string query unit 8 is configured to select, according to the corresponding Value, a JSON data string corresponding to the data query instruction from the internal memory type database redis.
The present invention will be further described with reference to the following specific examples.
Currently, in the process of processing data by using a computer, data is mostly stored in a relational database, so that the data is converted and stored by using a uniform format. However, when the amount of data to be processed is very large, a large amount of storage space is consumed for storing the data on the computer, and the adoption of the relational database storage mode can effectively reduce the occupation of the storage space of the computer, thereby accelerating the processing process of the data. However, the relational database processes data in the database by using mathematical concepts and methods such as set algebra, and related data needs to be queried first when the data is used for processing in the application process of the relational database. Therefore, when data is queried, the relational database needs to be read in and read out, so that the data query speed is low, and the user experience is poor.
Based on this, embodiments of the present invention provide a method and an apparatus for fast querying data based on redis, which are described below by embodiments.
Example 1
The method for rapidly querying data based on redis provided by the embodiment specifically comprises the following steps:
step 1: and putting the data to be processed into a memory type database redis, wherein the memory type database redis is arranged in a memory.
The redis is a key-value storage system, which supports a plurality of stored value types including string, list, set, zset, and hash, and the data types all support operations of push/pop, add/remove, intersect and difference sets, and the like. Moreover, in order to ensure efficiency, the data in the memory type database redis cached in the memory. In the data fast query method based on redis, firstly, data to be processed is put into a memory type database redis, namely, the process of storing the data in the database in a memory is realized.
The above placing the data to be processed into the memory type database redis, where the setting of the memory type database redis in the memory specifically includes:
(1) when a data storage instruction is received, it should be noted that the data storage instruction may be triggered from the outside, or may be generated by an operation algorithm inside a computer, that is, before the data is stored, the data to be processed is set in a memory so as to uniformly manage the data, and specifically, the method includes the following steps:
1. when a data storage instruction is received, Key values are sequentially configured for data to be processed in an internal memory type database redis, wherein the Key values are called primary Key values in computer application and are used for marking the data to be processed respectively.
2. In the method for rapidly querying data based on redis, Value values are sequentially configured for data configured with Key values, where a Value is a specific numerical Value of each piece of data to be processed, and in the method for rapidly querying data based on redis, a Value includes a plurality of json (javascript Object notification) data strings.
Firstly, the JSON adopts a text format independent of a programming language to express data, has concise grammar and clear hierarchy, is convenient to read and write, and is easy to analyze and generate by a machine, thereby effectively improving the network transmission efficiency. JSON supports many data types, for example, character strings, numbers, objects, arrays, etc. can be represented by JSON. JSON can convert a set of data represented in a JavaScript object into a string, and then can pass the string between networks or programs and restore it to a data format supported by each programming language when necessary, for example, in a PHP website, JSON can be restored to an array or a basic object. Compared with XML, JSON has high expandability, high data transmission efficiency, easy reading and capacity of saving great amount of bandwidth in data exchange.
In the processing process, Value values are sequentially configured for the data configured with Key values, that is, the data to be processed is converted into a form of a plurality of JSON data strings, so as to be stored in an internal memory type database redis.
3. And setting data to be processed in a memory type database redis in a Key-Value form, namely combining the configured Key Value and Value into a Key-Value form. It should be noted here that, compared with the conventional relational database, the query speed of Key-Value distributed storage is fast, which can save tens of times of the number of servers, and complete high-speed query in ten thousand concurrent connections. In addition, the storage data volume is large, the concurrency is high, the method is suitable for query through the main key, but complex condition query cannot be carried out. In addition, Key-Value is widely applied to cache, and can provide query service outwards with minimum performance consumption.
(2) And storing the set data into a memory type database redis, namely storing the set data into the memory type database redis for unified storage after the data completes the setting processing in a Key-Value form.
Step 2: when a data query instruction is received, selecting data corresponding to the data query instruction from a memory type database redis, wherein the steps specifically comprise the following steps:
(1) when a data query instruction is received, a Key value corresponding to the data query instruction is selected from a memory type database redis, that is, in the data fast query method based on the redis, when the data query instruction is received, a first step is to search the Key value, that is, a primary Key value to select the Key value corresponding to the data query instruction.
(2) And selecting a Value corresponding to the data query instruction from a memory type database redis according to the corresponding Key Value, and after selecting the Key Value, correspondingly selecting the Value corresponding to the data query instruction according to the Key Value, namely the Key Value and the Value correspond to the data query instruction.
(3) And selecting a JSON data string corresponding to the data query instruction from a memory type database redis according to the corresponding Value. Usually, the Value includes a plurality of JSON data strings, and after the Value is obtained in the internal memory type database redis, the JSON data string corresponding to the data query instruction needs to be selected to meet the use requirement of the data query instruction.
In addition, the data fast query method based on redis further comprises the following steps: when the data to be processed is applied to the website, particularly different JS interfaces, the JSON data strings are sent to the website for display processing, and the Value comprises a plurality of JSON data strings, so that the use requirements of different JS interfaces can be directly met, and the conversion is fast and convenient to apply. In addition, it should be noted here that, when the sso different websites are subjected to single-point unified login, the fast data query method based on redis is fast and convenient to login. In addition, when the blacklist invades in the website, the login user of the blacklist can be eliminated in the memory type database redis in real time, so that the memory consumption is effectively saved.
In summary, the method for rapidly querying data based on redis provided in this embodiment includes: firstly, data to be processed is put into a memory type database redis, and in the data fast query method based on the redis, the memory type database redis is arranged in a memory of a computer, so that when a data query instruction is received, data corresponding to the data query instruction can be selected from the memory type database redis, obviously, the queried data is also arranged in the memory of the computer, and therefore, the process of transferring the data from the position of the database to the memory is omitted, and through the processing steps, links for reading in and reading out the relational database during querying are saved, and the method is convenient and fast.
Example 2
The embodiment provides a data fast query device based on redis, which includes: the data query module is used for selecting data corresponding to the data query instruction from the memory type database redis when receiving the data query instruction.
In the data fast query device based on redis, the data storage module comprises: the data setting unit is used for setting data to be processed in the memory when receiving a data storage instruction, and the data storage unit is used for storing the set data into the memory type database redis.
In the data fast query device based on redis, the data setting unit includes: the Key Value configuration subunit is configured to, when a data storage instruction is received, sequentially configure Key values for data to be processed in the internal memory type database redis, the Value configuration subunit is configured to sequentially configure Value values for the data, for which the Key values have been configured, in the internal memory type database redis, where the Value values include multiple json (javascript Object notification) data strings, and the data format configuration subunit is configured to set the data to be processed in the internal memory type database redis in a Key-Value format.
In the data fast query device based on redis, the data query module includes: the Key Value query unit is used for selecting a Key Value corresponding to the data query instruction from the memory type database redis when the data query instruction is received, the Value query unit is used for selecting a Value corresponding to the data query instruction from the memory type database redis according to the corresponding Key Value, and the data string query unit is used for selecting a JSON data string corresponding to the data query instruction from the memory type database redis according to the corresponding Value.
In addition, the data fast query device based on redis further comprises: and the website application module is used for sending the JSON data string to a website for display processing when the data to be processed is applied to the website.
In summary, the device for fast querying data based on redis provided in this embodiment includes: the data query module is used for selecting data corresponding to a data query instruction from the memory type database redis when the data query instruction is received, and the purpose of quickly querying the required data from the memory type database redis is achieved through the setting of each module, so that the memory consumption is saved, and the data query speed is improved.
The computer program product of the method and the apparatus for fast querying data based on redis according to the embodiments of the present invention includes a computer readable storage medium storing a program code, where the program code includes instructions for executing the method described in the foregoing method embodiments.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A data fast query method based on redis is characterized in that the data fast query method based on redis comprises the following steps:
step one, receiving a data storage instruction, and setting data to be processed in an internal memory; storing the set data into a memory type database redis;
and step two, receiving a data query instruction, and selecting data corresponding to the data query instruction from a memory type database redis.
2. The method as claimed in claim 1, wherein in step one, the receiving a data storage instruction, and setting data to be processed in the memory comprises:
when a data storage instruction is received, sequentially configuring Key values for data to be processed in an internal memory type database redis;
sequentially configuring Value values comprising a plurality of JSON data strings for the data configured with the Key values in an internal memory type database redis;
and setting data to be processed in a memory type database redis in a Key-Value form.
3. The method for fast querying data based on redis as claimed in claim 1, wherein in step two, said selecting data corresponding to the data query instruction from the memory type database redis when the data query instruction is received comprises:
when a data query instruction is received, selecting a Key value corresponding to the data query instruction from a memory type database redis;
selecting a Value corresponding to the data query instruction from a memory type database redis according to the corresponding Key Value;
and selecting the JSON data string corresponding to the data query instruction from a memory type database redis according to the corresponding Value.
4. The redis-based data rapid query method of claim 1, wherein the redis-based data rapid query method further comprises:
and when the data to be processed is applied to the website, sending the selected JSON data string to the website for display processing.
5. A redis-based data rapid query apparatus for implementing the redis-based data rapid query method as claimed in claim 1, wherein the redis-based data rapid query apparatus comprises:
the data storage module comprises a data setting unit and a data storage unit; the device comprises a memory type database redis, a storage and a processing module, wherein the memory type database redis is used for storing data to be processed into a memory;
the data query module comprises a Key Value query unit, a Value query unit and a data string query unit; the system comprises a data query instruction receiving module, a data query module and a data processing module, wherein the data query instruction is used for receiving a data query instruction and selecting data corresponding to the data query instruction from a memory type database redis;
and the website application module is used for sending the JSON data string to a website for display processing when the data to be processed is applied to the website.
6. The redis-based data rapid query apparatus of claim 5, wherein the data storage module comprises:
the data setting unit comprises a Key Value configuration subunit, a Value configuration subunit and a data form configuration subunit; the data processing device is used for setting data to be processed in the memory when a data storage instruction is received;
and the data storage unit is used for storing the set data into the memory type database redis.
7. The redis-based data rapid query apparatus as claimed in claim 5, wherein the data setting unit comprises:
the system comprises a Key value configuration subunit, a memory type database redis and a processing unit, wherein the Key value configuration subunit is used for sequentially configuring Key values for data to be processed in the memory type database redis when a data storage instruction is received;
the Value configuration subunit is used for sequentially configuring Value values for the data configured with the Key values in the internal memory type database redis;
and the data form configuration subunit is used for setting the data to be processed in a memory type database redis in a Key-Value form.
8. The redis-based data rapid query apparatus of claim 5, wherein the data query module comprises:
the system comprises a Key value query unit, a data query unit and a data processing unit, wherein the Key value query unit is used for selecting a Key value corresponding to a data query instruction from a memory type database redis when the data query instruction is received;
the Value query unit is used for selecting a Value corresponding to the data query instruction from a memory type database redis according to a corresponding Key Value;
and the data string query unit is used for selecting the JSON data string corresponding to the data query instruction from the internal memory type database redis according to the corresponding Value.
9. A computer program product stored on a computer readable medium, comprising a computer readable program for providing a user input interface to implement a method for fast redis-based data query as claimed in any one of claims 1 to 4 when executed on an electronic device.
10. A computer-readable storage medium storing instructions that, when executed on a computer, cause the computer to perform a method for fast redis-based data query according to any one of claims 1-4.
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| CN112860960B (en) * | 2021-03-15 | 2024-02-23 | 北京达佳互联信息技术有限公司 | Data query method and device |
| CN113434518A (en) * | 2021-08-26 | 2021-09-24 | 西安热工研究院有限公司 | Time sequence database query method, system, equipment and storage medium |
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Application publication date: 20201225 |