Disclosure of Invention
In view of this, in order to solve the above technical problems or some technical problems, embodiments of the present invention provide a method, an apparatus, a system, and a computer device for monitoring a domain name server.
In a first aspect, an embodiment of the present invention provides a method for monitoring a domain name server, including:
acquiring parameter information in the running process of a plurality of domain name servers;
summarizing the parameter information, and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer;
and receiving a display request of the operating state of the domain name server, and acquiring the parameter information from the database or the cache component for displaying.
In one possible embodiment, the aggregating the parameter information and storing the aggregated parameter information in a database to cache a component includes:
the microservice and monitoring component monitor collects the parameter information received by the core component according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs to obtain the first running state data of each domain name server and the second running state data of a domain name resolution system formed by a plurality of domain name servers;
storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database; and
and storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
In one possible embodiment, the receiving a request for showing an operation status of the domain name server includes:
the monitor component receives a display request of the real-time running state of the domain name server sent by a display interface;
or the like, or, alternatively,
the monitor component receives a display request of the historical operating state of the domain name server sent by a display interface;
the display request carries identification information of the domain name server and a time interval.
In a possible embodiment, the obtaining the parameter information from the database or the cache component for displaying includes:
if the display request is a request of a real-time running state, acquiring first state data/second running data of a corresponding time interval from the websoket component and displaying the first state data/second running data on a display interface;
or the like, or, alternatively,
and if the display request is a request of a historical operating state, acquiring the first state data/second operating data of the corresponding time interval from the database and displaying the first state data/second operating data on a display interface.
In a possible embodiment, the obtaining parameter information during the operation of the plurality of domain name servers includes:
setting an agent process on each domain name server;
acquiring parameter information in the operation process of the domain name server through the agent process;
the parameter information is sent to the core component through the rpc interface.
In a second aspect, an embodiment of the present invention provides a monitoring apparatus for a domain name server, including:
the acquisition module is used for acquiring parameter information in the running process of the plurality of domain name servers;
the storage module is used for summarizing the parameter information and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer;
and the display module is used for receiving a display request of the operating state of the domain name server and acquiring the parameter information from the database or the cache component for displaying.
In a possible implementation manner, the storage module is specifically configured to collect, by the microservice and monitor component monitor, parameter information received by the core component according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, to obtain first operating state data of each domain name server and second operating state data of a domain name resolution system formed by a plurality of domain name servers; storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database; and storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
In a possible implementation manner, the display module is specifically configured to receive, by the monitor component, a display request of a real-time operation state of the domain name server sent by a display interface, and obtain, from the websoket component, first state data/second operation data of a corresponding time interval to display on the display interface;
or the like, or, alternatively,
the monitor component receives a display request of the historical operating state of the domain name server sent by a display interface, and acquires first state data/second operating data of a corresponding time interval from the database to display on the display interface;
the display request carries identification information of the domain name server and a time interval.
In a possible embodiment, the obtaining module is specifically configured to set an agent process on each domain name server; acquiring parameter information in the operation process of the domain name server through the agent process; the parameter information is sent to the core component through the rpc interface.
In a third aspect, an embodiment of the present invention provides a monitoring system for a domain name server, including:
the agent process is used for acquiring parameter information in the running process of the plurality of domain name servers;
the microservice and monitoring component monitor is used for summarizing the parameter information and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer; and receiving a display request of the operating state of the domain name server, and acquiring the parameter information from the database or the cache component for displaying.
In one possible embodiment, the database is a database, and the cache component is a websoket component;
the monitor component is specifically configured to collect parameter information received by the core component according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, so as to obtain first operating state data of each domain name server and second operating state data of a domain name resolution system formed by a plurality of domain name servers; storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database; and storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
In a possible implementation manner, the monitor component is further configured to receive a display request of a real-time operation state of the domain name server, which is sent by a display panel, and obtain first state data/second operation data of a corresponding time interval from the websoket component to display on the display panel;
or the like, or, alternatively,
the monitor component receives a display request of the historical operating state of the domain name server sent by a display panel, and acquires first state data/second operating data of a corresponding time interval from the database to display on the display panel;
the display request carries identification information of the domain name server and a time interval.
In one possible embodiment, the system further comprises:
and the core component is used for sending the parameter information acquired by the agent process in the operation process of the domain name server to the monitor component.
In a fourth aspect, an embodiment of the present invention provides a computer device, including: the processor is configured to execute a monitoring program of the domain name server stored in the memory, so as to implement the monitoring method of the domain name server according to any one of the above first aspects.
According to the monitoring scheme of the domain name server provided by the embodiment of the invention, parameter information in the operation process of a plurality of domain name servers is obtained; summarizing the parameter information, and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer; receiving a display request of the operation state of the domain name server, obtaining the parameter information from the database or the cache component for displaying, setting the cache component to store the latest period of data and update the latest period of data at regular time, displaying the real-time operation state of the DNS server, setting the database to store all data, displaying the historical operation state of the DNS server, and further monitoring the domain name resolution system visually and effectively.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
For the convenience of understanding of the embodiments of the present invention, the following description will be further explained with reference to specific embodiments, which are not to be construed as limiting the embodiments of the present invention.
Fig. 1 is a schematic flowchart of a monitoring method for a domain name server according to an embodiment of the present invention, and as shown in fig. 1, the method specifically includes:
and S11, acquiring parameter information in the operation process of the plurality of domain name servers.
The monitoring method of the domain name server provided by the embodiment of the invention is applied to monitoring of the DNS server in the domain name resolution system, the domain name resolution system is provided with a plurality of DNS servers, each DNS server is provided with a process, and parameter information of the domain name server is acquired through the process.
And S12, summarizing the parameter information, and storing the summarized parameter information in a database and a cache component.
The method comprises the steps of summarizing parameter information acquired by a process, specifically classifying and summarizing according to a domain name resolution system formed by a single domain name server, a machine room to which the domain name server belongs and a plurality of domain name servers, adding classified and summarized parameter data to a database for storing domain name server parameter information and a corresponding cache component, wherein a timer is arranged in the cache component, and updating the parameter information stored in the cache component in a set time period through the timer.
Further, the database stores all parameter information of a plurality of domain name servers in the domain name resolution system, the cache component stores parameter information of a set time period of the plurality of domain name servers in the domain name resolution system, the parameter information of the set time period is updated by a timer, and the parameter information may include: the DNS server receives request data, return data, success data or time data and the like.
And S13, receiving a display request of the operation state of the domain name server, and acquiring the parameter information from the database or the cache component for display.
In this embodiment, if a display request of an operating state of a domain name server sent by a display terminal is received, the display request is analyzed, and if the display request corresponds to a historical operating state, corresponding historical parameter information is obtained from a database and sent to the display terminal for displaying; and if the request corresponds to a real-time running state, acquiring corresponding parameter information from the buffer assembly, and sending the parameter information to a display terminal for displaying.
The monitoring method of the domain name server provided by the embodiment of the invention obtains the parameter information in the operation process of a plurality of domain name servers; summarizing the parameter information, and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer; receiving a display request of the operation state of the domain name server, obtaining the parameter information from the database or the cache component for displaying, setting the cache component to store the latest period of data and update the latest period of data at regular time, displaying the real-time operation state of the DNS server, setting the database to store all data, displaying the historical operation state of the DNS server, and further monitoring the domain name resolution system visually and effectively.
Fig. 2 is a schematic flowchart of another monitoring method for a domain name server according to an embodiment of the present invention, and as shown in fig. 2, the method specifically includes:
and S21, setting an agent process on each domain name server.
And S22, acquiring parameter information in the operation process of the domain name server through the agent process.
The monitoring method of the domain name server provided by the embodiment of the invention is applied to monitoring of a domain name resolution system, an agent process is arranged on each domain name server in the domain name resolution system, and the agent process collects parameter information of the domain name server at set time intervals in the operation process of the domain name server.
The parameter information may include, but is not limited to: the parameter information can represent the bind performance of the domain name server, and the DNS server receives the request data, the return data, the success data or the time data.
It should be noted that: the parameter information collected by the agent process is an accumulated value, that is, the parameter information collected at the current time needs to be subtracted from the parameter information collected at the last time to obtain the parameter information of the domain name server at the current time.
For example, the agent process collects parameter information during the operation of the domain name server every 5S.
And S23, sending the parameter information to a core component through a rpc interface.
And S24, the micro-service and monitoring component monitor collects the parameter information received by the core component according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, and obtains the first operation state data of each domain name server and the second operation state data of the domain name resolution system formed by a plurality of domain name servers.
The agent process sends the collected parameter information to the core component by calling an rpc interface, and the micro service and monitoring component monitor classifies and summarizes the parameter information received by the core component.
The parameter information acquired by the core component carries a first identifier corresponding to the domain name server and a second identifier of a machine room to which the domain name server belongs, the parameter information of each domain name server is collected according to the first identifier to obtain corresponding first operation state data, the parameter information corresponding to each machine room is collected according to the first identifier and the second identifier, and then second operation state data of a domain name resolution system formed by one or more machine rooms is obtained.
And S25, storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database.
S26, storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
The first operation state data and the second operation state data related to the embodiment of the invention are respectively stored in a database and a websoket component, and the database can be: mongoDB, wherein the database stores all the first operating state data and the second operating state data; the websoket component stores part of the first running state data and the second running state data through the timer, the first running state data and the second running state data of the current latest set time period are stored in the websoket component, and the updating operation of the first running state data and the second running state data is executed along with the interval time of the agent process data acquisition.
For example, the agent process collects parameter information in the operation process of the domain name server once every 5S, the websoket component stores the latest 1h of first operation state data and second operation state data, and the first operation state data and the second operation state data are updated at 5S intervals.
S27, the monitor component receives a display request of the real-time operation state of the domain name server sent by a display interface.
S28, acquiring the first state data/second operation data corresponding to the time interval from the websoket component, and displaying the first state data/second operation data on a display interface.
The display interface is used for displaying the running state of the domain name server/domain name resolution system, a query button of the real-time running state of the domain name server/domain name resolution system is selected through operation of a user on the display interface, a display request of the real-time running state of the corresponding domain name server/domain name resolution system is sent to the monitor component, and the monitor component sends the first running state data/the second running state data of the domain name server/domain name resolution system at the current moment stored in the websoket component to the display interface for displaying.
The display interface may be: and (6) a Web interface.
S29, the monitor component receives a display request of the historical operation state of the domain name server sent by a display interface.
S210, first state data/second operation data of the corresponding time interval are acquired from the database and displayed on a display interface.
The method comprises the steps that a query button of a historical operating state of a domain name server/domain name resolution system is selected through operation of a user on a display interface, a display request of the historical operating state of the corresponding domain name server/domain name resolution system is sent to a monitor component, identification information of the domain name server/domain name resolution system and a time interval are carried in the display request, and the monitor component requests a database for first operating state data/second operating state data of the domain name server/domain name resolution system in the corresponding time interval to be sent to the display interface for display.
The monitoring method of the domain name server provided by the embodiment of the invention obtains the parameter information in the operation process of a plurality of domain name servers; summarizing the parameter information, and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer; receiving a display request of the operation state of the domain name server, obtaining the parameter information from the database or the cache component for displaying, setting the cache component to store the latest period of data and update the latest period of data at regular time, displaying the real-time operation state of the DNS server, setting the database to store all data, displaying the historical operation state of the DNS server, and further monitoring the domain name resolution system visually and effectively.
Fig. 3 is a schematic structural diagram of a monitoring apparatus of a domain name server according to an embodiment of the present invention, and as shown in fig. 3, the structure specifically includes:
an obtaining module 31, configured to obtain parameter information in an operation process of multiple domain name servers;
the storage module 32 is configured to summarize the parameter information, and store the summarized parameter information in a database and a cache component, where the cache component is provided with a timer, and the parameter information stored in the cache component for a set time period is updated by the timer;
and the display module 33 is configured to receive a display request of the operating state of the domain name server, and obtain the parameter information from the database or the cache component for display.
In a possible implementation manner, the storage module 32 is specifically configured to collect, by the microservice and monitor component monitor, parameter information received by the core component according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, to obtain first operation state data of each domain name server and second operation state data of a domain name resolution system formed by a plurality of domain name servers; storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database; and storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
In a possible implementation manner, the display module 33 is specifically configured to receive, by the monitor component, a display request of the real-time operation state of the domain name server sent by a display interface, and obtain, from the websoket component, the first state data/the second operation data of the corresponding time interval to display on the display interface;
or the like, or, alternatively,
the monitor component receives a display request of the historical operating state of the domain name server sent by a display interface, and acquires first state data/second operating data of a corresponding time interval from the database to display on the display interface;
the display request carries identification information of the domain name server and a time interval.
In a possible embodiment, the obtaining module 31 is specifically configured to set an agent process on each domain name server; acquiring parameter information in the operation process of the domain name server through the agent process; the parameter information is sent to the core component through the rpc interface.
The monitoring system of the domain name server provided in this embodiment may be the monitoring device of the domain name server shown in fig. 3, and may perform all the steps of the monitoring method of the domain name server shown in fig. 1-2, so as to achieve the technical effect of the monitoring method of the domain name server shown in fig. 1-2, which is described with reference to fig. 1-2 for brevity, and is not described herein again.
Fig. 4 is a schematic structural diagram of a monitoring system of a domain name server according to an embodiment of the present invention, and as shown in fig. 4, the system specifically includes:
an agent process 41, configured to obtain parameter information in an operation process of a plurality of domain name servers;
the monitor component 42 is configured to summarize the parameter information, and store the summarized parameter information in a database and a cache component, where the cache component is provided with a timer, and the parameter information stored in the cache component in a set time period is updated by the timer; and receiving a display request of the operating state of the domain name server, and acquiring the parameter information from the database or the cache component for displaying.
In one possible embodiment, the database is a database, and the cache component is a websoket component;
the monitor component 42 is specifically configured to summarize parameter information received by the core component 43 according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, so as to obtain first operation state data of each domain name server and second operation state data of a domain name resolution system formed by a plurality of domain name servers; storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database 44; and storing the first operation state data of each domain name server in a set time period and the second operation state data of the domain name resolution system formed by a plurality of domain name servers in the websoket component 45.
In a possible embodiment, the monitor component 42 is further configured to receive a display request of the real-time operation state of the domain name server sent by the display panel 46, and obtain the first state data/the second operation data of the corresponding time interval from the websoket component 45 to display on the display panel 46; or, the monitor component 42 receives the display request of the historical operating state of the domain name server sent by the display panel 46, and obtains the first state data/second operating data of the corresponding time interval from the database 44 to display on the display panel 46;
the display request carries identification information of the domain name server and a time interval.
In one possible embodiment, the system further comprises: and the core component 43 is used for sending the parameter information acquired by the agent process 41 in the operation process of the domain name server to the monitor component 42.
The monitoring system of the domain name server provided in this embodiment may be the monitoring system of the domain name server shown in fig. 4, and may perform all the steps of the monitoring method of the domain name server shown in fig. 1-2, so as to achieve the technical effect of the monitoring method of the domain name server shown in fig. 1-2, and refer to the description of fig. 1-2 for brevity, which is not repeated herein.
Fig. 5 is a schematic structural diagram of a computer device according to an embodiment of the present invention, where the computer device 500 shown in fig. 5 includes: at least one processor 501, memory 502, at least one network interface 504, and other user interfaces 503. The various components in the computer device 500 are coupled together by a bus system 505. It is understood that the bus system 505 is used to enable connection communications between these components. The bus system 505 includes a power bus, a control bus, and a status signal bus in addition to a data bus. For clarity of illustration, however, the various buses are labeled as bus system 505 in FIG. 5.
The user interface 503 may include, among other things, a display, a keyboard, or a pointing device (e.g., a mouse, trackball, touch pad, or touch screen, among others.
It is to be understood that the memory 502 in embodiments of the present invention may be either volatile memory or nonvolatile memory, or may include both volatile and nonvolatile memory. The non-volatile memory may be a Read-only memory (ROM), a programmable Read-only memory (PROM), an erasable programmable Read-only memory (erasabprom, EPROM), an electrically erasable programmable Read-only memory (EEPROM), or a flash memory. The volatile memory may be a Random Access Memory (RAM) which functions as an external cache. By way of example, but not limitation, many forms of RAM are available, such as static random access memory (staticiram, SRAM), dynamic random access memory (dynamic RAM, DRAM), synchronous dynamic random access memory (syncronous DRAM, SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), enhanced synchronous dynamic random access memory (EnhancedSDRAM, ESDRAM), synchronous link dynamic random access memory (synchlink DRAM, SLDRAM), and direct memory bus random access memory (DRRAM). The memory 502 described herein is intended to comprise, without being limited to, these and any other suitable types of memory.
In some embodiments, memory 502 stores elements, executable units or data structures, or a subset thereof, or an expanded set thereof as follows: an operating system 5021 and application programs 5022.
The operating system 5021 includes various system programs, such as a framework layer, a core library layer, a driver layer, and the like, and is used for implementing various basic services and processing hardware-based tasks. The application 5022 includes various applications, such as a media player (MediaPlayer), a Browser (Browser), and the like, for implementing various application services. The program for implementing the method according to the embodiment of the present invention may be included in the application program 5022.
In the embodiment of the present invention, by calling a program or an instruction stored in the memory 502, specifically, a program or an instruction stored in the application 5022, the processor 501 is configured to execute the method steps provided by the method embodiments, for example, including:
acquiring parameter information in the running process of a plurality of domain name servers; summarizing the parameter information, and storing the summarized parameter information in a database and a cache component, wherein a timer is arranged in the cache component, and the parameter information stored in the cache component in a set time period is updated through the timer; and receiving a display request of the operating state of the domain name server, and acquiring the parameter information from the database or the cache component for displaying.
In a possible implementation manner, the microservice and monitor module monitor collects the parameter information received by the core module according to the first identifier of the domain name server and the second identifier of the machine room to which the domain name server belongs, and obtains the first operating state data of each domain name server and the second operating state data of the domain name resolution system formed by a plurality of domain name servers; storing the first operation state data of each domain name server and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a database; and storing the first operation state data of each domain name server in a set time period and the second operation state data of a domain name resolution system formed by a plurality of domain name servers in a websoket component.
In one possible implementation, the monitor component receives a display request of the real-time running state of the domain name server sent by a display interface; or, the monitor component receives a display request of the historical operating state of the domain name server sent by a display interface; the display request carries identification information of the domain name server and a time interval.
In a possible implementation manner, if the display request is a request of a real-time operation state, acquiring first state data/second operation data of a corresponding time interval from the websoket component and displaying the first state data/second operation data on a display interface; or if the display request is a request of a historical operating state, acquiring the first state data/second operating data of the corresponding time interval from the database and displaying the first state data/second operating data on a display interface.
In one possible embodiment, an agent process is set on each of the domain name servers; acquiring parameter information in the operation process of the domain name server through the agent process; the parameter information is sent to the core component through the rpc interface.
The method disclosed by the above-mentioned embodiments of the present invention may be applied to the processor 501, or implemented by the processor 501. The processor 501 may be an integrated circuit chip having signal processing capabilities. In implementation, the steps of the above method may be performed by integrated logic circuits of hardware or instructions in the form of software in the processor 501. The processor 501 may be a general-purpose processor, a Digital Signal Processor (DSP), an Application Specific Integrated Circuit (ASIC), an off-the-shelf programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, or discrete hardware components. The various methods, steps and logic blocks disclosed in the embodiments of the present invention may be implemented or performed. A general purpose processor may be a microprocessor or the processor may be any conventional processor or the like. The steps of the method disclosed in connection with the embodiments of the present invention may be directly implemented by a hardware decoding processor, or implemented by a combination of hardware and software elements in the decoding processor. The software elements may be located in ram, flash, rom, prom, or eprom, registers, among other storage media that are well known in the art. The storage medium is located in the memory 502, and the processor 501 reads the information in the memory 502 and completes the steps of the method in combination with the hardware.
It is to be understood that the embodiments described herein may be implemented in hardware, software, firmware, middleware, microcode, or any combination thereof. For a hardware implementation, the processing units may be implemented within one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), general purpose processors, controllers, micro-controllers, microprocessors, other electronic units configured to perform the functions described herein, or a combination thereof.
For a software implementation, the techniques described herein may be implemented by means of units performing the functions described herein. The software codes may be stored in a memory and executed by a processor. The memory may be implemented within the processor or external to the processor.
The computer device provided in this embodiment may be the computer device shown in fig. 5, and may perform all the steps of the monitoring method for the domain name server shown in fig. 1-2, so as to achieve the technical effect of the monitoring method for the domain name server shown in fig. 1-2, and please refer to the description related to fig. 1-2 for brevity, which is not described herein again.
Those of skill would further appreciate that the various illustrative components and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware, computer software, or combinations of both, and that the various illustrative components and steps have been described above generally in terms of their functionality in order to clearly illustrate this interchangeability of hardware and software. 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.
The steps of a method or algorithm described in connection with the embodiments disclosed herein may be embodied in hardware, a software module executed by a processor, or a combination of the two. A software module may reside in Random Access Memory (RAM), memory, Read Only Memory (ROM), electrically programmable ROM, electrically erasable programmable ROM, registers, hard disk, a removable disk, a CD-ROM, or any other form of storage medium known in the art.
The above-mentioned embodiments are intended to illustrate the objects, technical solutions and advantages of the present invention in further detail, and it should be understood that the above-mentioned embodiments are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.