CN106331213B - Domain name system DNS processing method and device - Google Patents

Abstract

The embodiment of the invention discloses a Domain Name System (DNS) processing method and a device, wherein the method comprises the following steps: initiating a DNS query request of a target domain name under the condition of detecting that the access network of the terminal equipment is switched; receiving a DNS analysis result corresponding to the DNS query request, wherein the DNS analysis result comprises at least one first IP address corresponding to the target domain name; and storing the first IP address in the terminal equipment. The method and the device can solve the problem that the terminal equipment in the prior art cannot quickly access the target network position after the access network is switched, and improve the user experience.

Description

A domain name system DNS processing method and device

technical field

The invention relates to the field of electronic technology, in particular to a domain name system (DNS) processing method and device.

Background technique

DNS (Domain Name System, Domain Name System) is a distributed database on the Internet that maps domain names and IP addresses to each other, enabling users to access the Internet more conveniently without having to remember IP numbers that can be directly read by machines. The process of mapping a domain name to an IP address is called "domain name resolution." Domain name resolution needs to be completed by a dedicated domain name resolution server, and DNS is the server for domain name resolution. When a user enters a DNS name (domain name) in an application, the DNS server can resolve this name into its corresponding IP address. Therefore, the domain name entered by the user when surfing the Internet can finally access the Internet through the IP address pointed to by the domain name.

In the existing technology, the domain name of a website is generally unique, and the IP address may be different in different network environments. Therefore, when an application visits a website, it first initiates a DNS query request, and obtains the DNS server to return After the DNS resolution result (IP address) of your website, you can access the website through the IP address.

At present, in order to speed up the speed of accessing websites and reduce the time of DNS query, many third-party application software usually initiate a DNS query when visiting a certain website for the first time, and then cache the results of the DNS query locally. Visiting this website will directly use the previous DNS query results without initiating DNS queries again. However, this is prone to a problem. The DNS query results of the wireless fidelity Wi-Fi network and the mobile data network are often inconsistent. It will automatically update the DNS query results, and if the previous query results are directly used, access to the network will fail. The correct IP address can only be obtained by initiating DNS again after waiting for the DNS cache in the application cache to expire. As a result, the success rate and efficiency of user access to the network are greatly reduced, affecting user experience.

Contents of the invention

The technical problem to be solved by the embodiments of the present invention is to provide a domain name system DNS processing method and device, which can solve the problem in the prior art that a terminal device cannot quickly access a designated network after a network access switch occurs.

In the first aspect, the embodiment of the present invention provides a DNS processing method of the domain name system, which may include:

Initiate a DNS query request for the target domain name when it is detected that the access network of the terminal device is switched;

receiving a DNS resolution result corresponding to the DNS query request, where the DNS resolution result includes at least one first IP address corresponding to the target domain name;

storing the first IP address in the terminal device.

With reference to the first aspect, in a first possible implementation manner, the method further includes:

When receiving the access instruction for the target domain name, access the network location corresponding to the first IP address stored in the terminal device.

With reference to the first possible implementation of the first aspect, in a second possible implementation, the method further includes:

Before it is detected that the access network of the terminal device is switched, the terminal device stores the second IP address corresponding to the target domain name.

With reference to the second possible implementation of the first aspect, in a third possible implementation, the method further includes:

If accessing the network location corresponding to the first IP address fails, accessing the network location corresponding to the second IP address.

With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner, the method further includes:

If the access to the network location corresponding to the second IP address fails, an expiration notification of the DNS resolution result of the target domain name is sent to the terminal device to prompt the terminal device to update the IP address corresponding to the target domain name .

In combination with the first aspect or the first possible implementation of the first aspect or the second possible implementation of the first aspect or the third possible implementation of the first aspect or the fourth possible implementation of the first aspect In any one of the implementation manners, in a fifth possible implementation manner, the switching of the access network includes at least one of the following:

Switch between wireless fidelity Wi-Fi network and mobile data network;

Handover between different mobile data networks;

Switch between different Wi-Fi networks.

In a second aspect, an embodiment of the present invention provides a domain name system DNS processing device, which may include:

A query module, configured to initiate a DNS query request for the target domain name when it is detected that the access network of the terminal device is switched;

A receiving module, configured to receive a DNS resolution result corresponding to the DNS query request, where the DNS resolution result includes at least one first IP address corresponding to the target domain name;

A first storage module, configured to store the first IP address in the terminal device.

With reference to the second aspect, in a first possible implementation manner, the device further includes:

A first access module, configured to access a network location corresponding to the first IP address stored in the terminal device when receiving an access instruction for the target domain name.

With reference to the first possible implementation manner of the second aspect, in a second possible implementation manner, the device further includes:

The second storage module is configured to store, in the terminal device, the second IP address corresponding to the target domain name before the switchover of the access network of the terminal device is detected.

With reference to the second possible implementation manner of the second aspect, in a third possible implementation manner, the device further includes:

The second access module is configured to access the network location corresponding to the second IP address if the access to the network location corresponding to the first IP address fails.

With reference to the third possible implementation manner of the second aspect, in a fourth possible implementation manner, the device further includes:

A notification module, configured to send an expiration notification of the DNS resolution result of the target domain name to the terminal device if the access to the network location corresponding to the second IP address fails, so as to prompt the terminal device to correspond to the target domain name update of the IP address.

In combination with the second aspect or the first possible implementation of the second aspect or the second possible implementation of the second aspect or the third possible implementation of the second aspect or the fourth possible implementation of the second aspect In any one of the implementation manners, in a fifth possible implementation manner, the switching of the access network includes at least one of the following:

Switch between wireless fidelity Wi-Fi network and mobile data network;

Handover between different mobile data networks;

Switch between different Wi-Fi networks.

In a third aspect, an embodiment of the present invention provides a terminal device, which may include:

a memory storing executable program code;

a processor coupled to the memory;

The processor invokes the executable program code stored in the memory to execute some or all of the steps described in any method of the first aspect of the embodiments of the present invention.

In a fourth aspect, the present invention provides a computer storage medium for storing computer software instructions used by the domain name system DNS processing device provided in the second aspect of the embodiment of the present invention, which includes the program designed to execute the above aspect.

Implementing the embodiment of the present invention has the following beneficial effects:

In the embodiment of the present invention, when it is detected that the access network of the terminal device is switched, a DNS query request for the target domain name is initiated, and the DNS resolution result corresponding to the DNS query request is received, and finally the DNS resolution result includes at least one The first IP address corresponding to the target domain name is stored in the terminal device. That is, when the access network of the terminal device is switched, if the IP address corresponding to the target domain name that may exist will change, before the user accesses the network corresponding to the target domain name, obtain and store the IP address corresponding to the target domain name in advance. IP address, so that when users need to access the target domain name, they can directly access the stored IP address without temporarily obtaining it, which speeds up the success rate and speed of accessing the network corresponding to the target domain name, and improves the user's network experience.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without creative work.

FIG. 1 is a schematic flowchart of a domain name system DNS processing method provided by an embodiment of the present invention;

Fig. 2 is a schematic flow chart of another domain name system DNS processing method provided by an embodiment of the present invention;

Fig. 3 is a schematic diagram of a specific application scenario of the domain name system DNS processing method provided by the embodiment of the present invention;

FIG. 4 is a schematic diagram of another specific application scenario of the domain name system DNS processing method provided by the embodiment of the present invention;

5 is a schematic structural diagram of a domain name system DNS processing device provided by an embodiment of the present invention;

FIG. 6 is a schematic structural diagram of another embodiment of a domain name system DNS processing device provided by an embodiment of the present invention;

FIG. 7 is a schematic structural diagram of a terminal device provided by an embodiment of the present invention;

Fig. 8 is a schematic structural diagram of another embodiment of a terminal device provided by the present invention.

detailed description

In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only It is an embodiment of a part of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

Each will be described in detail below.

The terms "first", "second", "third" and "fourth" in the description and claims of the present invention and the drawings are used to distinguish different objects, rather than to describe a specific order . Furthermore, the terms "include" and "have", as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but optionally also includes unlisted steps or units, or optionally further includes For other steps or units inherent in these processes, methods, products or apparatuses.

Reference herein to an "embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present invention. The occurrences of this phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is understood explicitly and implicitly by those skilled in the art that the embodiments described herein can be combined with other embodiments.

Hereinafter, some terms used in this application are explained to facilitate the understanding of those skilled in the art.

1) Terminal equipment, also called User Equipment (UE), is a device that provides voice and/or data connectivity to users, such as handheld devices and vehicle-mounted devices with wireless connection functions. Common terminal devices include, for example: mobile phones, tablet computers, notebook computers, handheld computers, mobile Internet devices (Mobile Internet Device, MID), wearable devices, smart bracelets, pedometers, MP3 players (Moving Picture Experts GroupAudio Layer III , MP4 (Moving Picture ExpertsGroup Audio Layer IV, Moving Picture Experts Group Audio Layer 3) player, personal digital assistant (Personal Digital Assistant, PDA) and laptop portable computer etc.

2), IP address, refers to the Internet protocol address and translated into the Internet protocol address (Internet Protocol Address, IP Address), IP address is a unified address format provided by the IP protocol, it is for every network and every Each host is assigned a logical address to shield the difference in physical addresses. On the Internet, each node relies on a unique IP address to distinguish and communicate with each other. The IP address is a 32-bit binary address consisting of four 8-bit fields, each field is separated by a dot, and is used to identify the TCP/IP host. Every IP address consists of two parts: a network ID and a host ID. The network ID identifies all hosts on the same physical network, and the host ID identifies each host on the physical network, so each computer on the entire Internet is identified by its own unique IP address.

3), "Multiple" refers to two or more than two. "And/or" describes the association relationship of associated objects, indicating that there may be three types of relationships, for example, A and/or B may indicate: A exists alone, A and B exist simultaneously, and B exists independently. The character "/" generally indicates that the contextual objects are an "or" relationship.

Fig. 1 is a schematic flowchart of a domain name system DNS processing method provided by an embodiment of the present invention. The following will describe in detail a domain name system DNS processing method in the embodiment of the present invention from the terminal device side in conjunction with Fig. 1 , the method includes The following steps S101-step S103.

Step S101: Initiate a DNS query request of the target domain name when it is detected that the access network of the terminal device is switched.

Specifically, the terminal device or related processors or related processing modules in the terminal device, (the same will not be repeated later) when detecting that the access network of the terminal device is switched, initiate a DNS query request for the target domain name, and the DNS The query request is to point to the corresponding DNS server to initiate a query command to obtain the DNS resolution result including the resolved IP address of the target domain name. Access network switching means that the network currently accessed by the terminal device is different from the access network before the switching, which may include switching between Wi-Fi networks and mobile data networks, and switching between different mobile data networks. , switching between different Wi-Fi networks, switching between wired networks and wireless networks, etc., for example, a user switches from using a Wi-Fi network at home to a mobile data network used after going out.

It should be noted that when or after a network switch occurs, the terminal device initiates a DNS query request for the target domain name (requesting to query the corresponding IP address), the target domain name may be pre-stored by the user in the specified DNS list of the terminal device, for example , put the domain names of the most frequently used websites or applications in the DNS list; it can also be the domain names of all visited websites in the user terminal device, or some IP address changes are relatively Frequent domain names are not specifically limited in the present invention. It can be understood that, because in the prior art, when the network is not switched, the same website (such as the target domain name) is repeatedly visited, and the general IP address will not change, so as long as the first visit is saved If you have obtained the corresponding IP address, you can directly use the corresponding IP address after the first visit without re-querying, but in some cases, such as when the access network of the terminal device is switched, it may result in saving The IP address of the target domain name will be invalid, and the user cannot access it normally. Therefore, in the embodiment of the present invention, when an access network switch occurs, the latest IP address corresponding to the target domain name can be obtained again or in advance, so as to avoid access when the user needs to access Failure situation.

Step S102: Receive a DNS resolution result corresponding to the DNS query request, where the DNS resolution result includes at least one first IP address corresponding to the target domain name.

Specifically, the DNS server that receives the DNS query request feeds back the DNS resolution result to the terminal device, and the DNS resolution result includes at least one first IP address corresponding to the target domain name, because the website of some domain name may correspond to multiple servers , that is, there may be multiple IP addresses, so the DNS resolution result fed back includes at least one first IP address corresponding to the target domain name. In a specific application scenario, the specific process is, for example, the terminal device is an ordinary smart phone, open the browser, enter a domain name, such as www.163.com, at this time, the smart phone will send a DNS request to Local DNS server, local DNS server is generally provided by the network access server provider of the smart phone, such as China Telecom, China Mobile; after the DNS request for www.163.com arrives at the local DNS server, the local DNS server will first query its Cache record, if there is this record in the cache, you can directly return the result. If not, the local DNS server will also query the DNS root server. The root DNS server does not record the corresponding relationship between the specific domain name and IP address, but tells the local DNS server, you can go to the domain server to continue querying, and give the address of the domain server. The local DNS server continues to make requests to the domain server. Finally, the local DNS server sends a request to the resolution server of the domain name. At this time, a corresponding relationship between the domain name and the IP address can be received. The local DNS server not only returns the IP address to the user's smartphone, but also saves the corresponding relationship in the In the cache, in case other users query next time, the results can be returned directly to speed up network access. At the same time, the smart phone receives the IP address and can store it in the cache memory of the mobile phone, so that the next visit does not need to visit the local DNS server (see step S103).

Step S103: storing the first IP address in the terminal device.

Specifically, the first IP address corresponding to the target domain name obtained through query is stored in the terminal device. Although the user has not accessed the target domain name at this time, that is, the terminal device has not received an access instruction for the target domain name, but in the embodiment of the present invention, the target domain name (such as the website that the user often needs to visit) can be corresponding The IP address is stored, and when the user needs to access, it can be used directly, and there is no need to wait for the user to issue an access command before obtaining the IP address, which will greatly increase the user's response time, but if the query is stored in advance , when the user actually visits, the time consumed by the temporary query can be avoided, and the speed of the user entering the website can be accelerated.

In the embodiment of the present invention, when it is detected that the access network of the terminal device is switched, a DNS query request for the target domain name is initiated, and the DNS resolution result corresponding to the DNS query request is received, and finally the DNS resolution result includes at least one The first IP address corresponding to the target domain name is stored in the terminal device. That is, when the access network of the terminal device is switched, if the IP address corresponding to the target domain name that may exist will change, before the user accesses the network corresponding to the target domain name, obtain and store the IP address corresponding to the target domain name in advance. IP address, so that when users need to access the target domain name, they can directly access the stored IP address without temporarily obtaining it, which speeds up the success rate and speed of accessing the network corresponding to the target domain name, and improves the user's network experience.

Fig. 2 is a schematic flowchart of another domain name system DNS processing method provided by the embodiment of the present invention. The following will introduce in detail another domain name system DNS processing method in the embodiment of the present invention from the terminal device side in conjunction with Fig. 2 , as shown in FIG. As shown in FIG. 2, the method may include the following steps S201-S207.

Step S201: before it is detected that the access network of the terminal device is switched, the terminal device stores a second IP address corresponding to the target domain name.

Specifically, before the switchover of the access network referred to in the embodiment of the present invention, assuming that there is a record of visiting the target domain name before, then after the target domain name has been visited before, the obtained second The IP address is stored so that when accessing the network before the switch, the second IP address can be accessed directly. Of course, the premise is that the second IP address has not expired, that is, within the validity period, which can be determined by the user based on experience. It can also be a reasonable time value set by the relevant application itself based on a large amount of data mining. As shown in FIG. 3, FIG. 3 is a schematic diagram of a specific application scenario of the domain name system DNS processing method provided by the embodiment of the present invention. In FIG. side), but after returning home, it is necessary to switch the access network of the terminal device to the Wi-Fi network (the left side of the figure on the right). At this time, when using the mobile data network, the second IP address in the steps of this method is used The network corresponding to the accessed target domain name, when using Wi-Fi, uses the second IP address to access the network corresponding to the target domain name.

Step S202: Initiate a DNS query request of the target domain name when it is detected that the access network of the terminal device is switched.

Step S203: Receive a DNS resolution result corresponding to the DNS query request, where the DNS resolution result includes at least one first IP address corresponding to the target domain name.

Step S204: storing the first IP address in the terminal device.

Specifically, for step S202 to step S204, reference may be made to step S101 to step S103 in the above embodiment in FIG. 1 , which will not be repeated here.

Step S205: When receiving the access instruction for the target domain name, access the network location corresponding to the first IP address stored in the terminal device.

Specifically, when receiving an access instruction of the target domain name, the network location corresponding to the first IP address stored in the terminal device can be directly accessed without temporarily initiating a DNS query request of the target domain name, thus greatly saving the user from entering Time spent on relevant websites to improve users' online experience.

Step S206: If the access to the network location corresponding to the first IP address fails, access the network location corresponding to the second IP address.

Specifically, if the access to the network location corresponding to the first IP address fails, it indicates that the server corresponding to the network location may not provide services temporarily or has a fault, and the connection cannot be successful temporarily, so it may be necessary to access the IP addresses corresponding to other servers , that is, you can access the second IP address that has successfully accessed the target domain name before.

Step S207: If the access to the network location corresponding to the second IP address fails, send an expiration notification of the DNS resolution result of the target domain name to the terminal device, so as to prompt the terminal device to obtain the IP address corresponding to the target domain name. update.

Specifically, the second IP address is the IP address stored before the network switch occurs, that is, the IP address corresponding to the access target domain name under the access network before the network switch, if the network location corresponding to the IP address also fails to access, It means that both the first IP address and the second IP address corresponding to the target domain name are invalid, and they need to be re-queried to obtain. Therefore, it is necessary to send an expiration notice of the DNS resolution result of the target domain name to the terminal device, prompting the terminal device to perform IP address corresponding to the target domain name. Update, so that when you access the target domain name again later, you can directly access the corresponding IP address, and the access can be successful. As shown in Figure 4, Figure 4 is a schematic diagram of another specific application scenario of the domain name system DNS processing method provided by the embodiment of the present invention. In Figure 4, after a network switch occurs (mobile data network is switched to a Wi-Fi network) , at this time, there may be a situation where neither the first IP address nor the second IP address can be accessed. At this time, the terminal device sends a prompt of access failure, and re-does the DNS query request of the target domain name in the background, so that the target domain name can be successfully accessed. corresponding network.

In the embodiment of the present invention, when it is detected that the access network of the terminal device is switched, a DNS query request for the target domain name is initiated, and the DNS resolution result corresponding to the DNS query request is received, and finally the DNS resolution result includes at least one The first IP address corresponding to the target domain name is stored in the terminal device. That is, when the access network of the terminal device is switched, if the IP address corresponding to the target domain name that may exist will change, before the user accesses the network corresponding to the target domain name, obtain and store the IP address corresponding to the target domain name in advance. IP address, so that when users need to access the target domain name, they can directly access the stored IP address without temporarily obtaining it, which speeds up the success rate and speed of accessing the network corresponding to the target domain name, and improves the user's network experience.

The embodiment of the present invention also provides a domain name system DNS processing device 10, as shown in FIG. 5, which is a schematic structural diagram of the domain name system DNS processing device in the embodiment of the present invention. The structure of the DNS processing device 10 will be described in detail. The device 10 may include: a query module 102, a receiving module 103 and a first storage module 104, wherein

The query module 102 is configured to initiate a DNS query request of the target domain name when it is detected that the access network of the terminal device is switched;

A receiving module 103, configured to receive a DNS resolution result corresponding to the DNS query request, where the DNS resolution result includes at least one first IP address corresponding to the target domain name;

The first storage module 104 is configured to store the first IP address in the terminal device.

Specifically, as shown in FIG. 6 , a schematic structural diagram of another embodiment of a domain name system DNS processing device provided by the present invention, the device 10 may further include:

The first access module 105 is configured to access the network location corresponding to the first IP address stored in the terminal device when an access instruction for the target domain name is received.

Further, as shown in Figure 6, the device also includes:

The second storage module 101 is configured to store, in the terminal device, the second IP address corresponding to the target domain name before the switchover of the access network of the terminal device is detected.

Further, as shown in Figure 6, the device also includes:

The second access module 106 is configured to access the network location corresponding to the second IP address if the access to the network location corresponding to the first IP address fails.

Further, as shown in Figure 6, the device also includes:

The notification module 107 is configured to send an expiration notification of the DNS resolution result of the target domain name to the terminal device if the access to the network location corresponding to the second IP address fails, so as to prompt the terminal device to perform the DNS resolution of the target domain name. The corresponding IP address is updated.

Still further, the switching of the access network includes at least one of the following:

Switch between wireless fidelity Wi-Fi network and mobile data network;

Handover between different mobile data networks;

Switch between different Wi-Fi networks.

It can be understood that, the function of each module in the domain name system DNS processing device 10 can refer to the specific implementation manners in the above-mentioned method embodiments in FIG. 1 to FIG. 4 correspondingly, which will not be repeated here.

In this embodiment, the domain name system DNS processing device 10 is presented in the form of modules. The "module" here may refer to an application-specific integrated circuit (ASIC), a processor and memory executing one or more software or firmware programs, an integrated logic circuit, and/or other devices that can provide the above functions . In addition, the query module 102 can be realized by the processor 201 of the terminal device shown in FIG. 7 , the receiving module 103 can be realized by the communication interface 203 of the terminal device shown in FIG. 7 , and so on.

The embodiment of the present invention also provides a terminal device 20 , as shown in FIG. 7 , which is a schematic structural diagram of the terminal device in the embodiment of the present invention. The structure of the terminal device 20 will be described in detail below with reference to FIG. 7 . The terminal device 20 includes at least one processor 201 , at least one memory 202 , and at least one communication interface 203 . The processor 201 , the memory 202 and the communication interface 203 are connected through the communication bus and complete mutual communication.

The processor 201 may be a general-purpose central processing unit (CPU), a microprocessor, an application-specific integrated circuit (ASIC), or one or more integrated circuits for controlling the execution of the programs in the above solutions.

The communication interface 203 is used for communicating with other devices or communication networks, such as Ethernet, Radio Access Network (RAN), Wireless Local Area Networks (Wireless Local Area Networks, WLAN) and so on.

The memory 202 may be a read-only memory (read-only memory, ROM) or other types of static storage devices that can store static information and instructions, and a random access memory (random access memory, RAM) or other types that can store information and instructions It can also be an electrically erasable programmable read-only memory (Electrically Erasable Programmable Read-Only Memory, EEPROM), a CD-ROM (Compact Disc Read-Only Memory, CD-ROM) or other optical disk storage, optical disk storage ( including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or can be used to carry or store desired program code in the form of instructions or data structures and can be stored by a computer Any other medium, but not limited to. The memory can exist independently and be connected to the processor through the bus. Memory can also be integrated with the processor.

Wherein, the memory 202 is used to store application program codes for executing the above solution, and the execution is controlled by the processor 201 . The processor 201 is configured to execute application program codes stored in the memory 202 .

The code stored in the memory 202 can execute the domain name system DNS processing method in FIGS. 1-4 performed by the terminal device provided above, for example, when it is detected that the access network of the terminal device is switched, a DNS query request for the target domain name is initiated; receiving a DNS resolution result corresponding to the DNS query request, the DNS resolution result including at least one first IP address corresponding to the target domain name; storing the first IP address in the terminal device.

Please refer to FIG. 8. FIG. 8 is a schematic structural diagram of another embodiment of a terminal device provided by an embodiment of the present invention. The terminal device 30 can be an intelligent mobile terminal (such as a mobile phone), and the terminal device 30 includes: a radio frequency (English: radiofrequency, RF) circuit 301, a memory 302 storing one or more computer programs, an input device 303, an output device 304, A sensor 305 , an audio circuit 306 , a wireless fidelity (English: wireless fidelity, WiFi) module 307 , a processor 308 including one or more processing cores, and a power supply 303 and other components. Those skilled in the art can understand that the structure of the terminal device shown in FIG. 8 does not constitute a limitation on the terminal device, and may include more or less components than those shown in the figure, or combine some components, or arrange different components. in:

The RF circuit 301 can be used for sending and receiving information or receiving and sending signals during a call. In particular, after receiving the downlink information of the base station, it is processed by one or more processors 308; in addition, the data related to the uplink is sent to the base station . Generally, the RF circuit 301 includes, but is not limited to, an antenna, at least one amplifier, a tuner, one or more oscillators, a subscriber identity module (English: subscriber identity module, SIM) card, a transceiver, a coupler, a low noise amplifier ( English: low noise amplifier, LNA), duplexer, etc. In addition, the RF circuit 301 can also communicate with the network or other terminal devices through wireless communication. The wireless communication can use any communication standard or protocol, including but not limited to global system of mobile communication (English: global system of mobile communication, GSM), general packet radio service (English: general packet radio service, GPRS), code division Multiple access (English: code division multiple access, CDMA), broadband code division multiple access (English: wideband code division multiple access, WCDMA), long term evolution (English: long term evolution, LTE), email, short message service (English: short messaging service, SMS), etc.

The memory 302 can be used to store computer programs and modules, and the processor 308 executes various functional applications and data processing by running the computer programs and modules stored in the memory 302 . The memory 302 can mainly include a program storage area and a data storage area, wherein the program storage area can store an operating system, at least one application program required by a function (such as a sound playback function, an image playback function, etc.); Data created using the terminal device 30 (such as photographed photos, audio data, video data, etc.) and the like. In addition, the memory 302 may include a high-speed random access memory, and may also include a non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid-state storage devices. Correspondingly, the memory 302 may also include a memory controller to provide access to the memory 302 by the processor 308 and the input device 303 .

The input device 303 can be used to receive input numbers or character information, and generate keyboard, mouse, joystick, optical or trackball signal input related to user settings and function control. Specifically, the input device 303 may include a touch-sensitive surface 3031 and other input devices 3032 . The touch-sensitive surface 3031, also referred to as a touch display panel or a touchpad, can collect user touch operations on or near it (for example, the user uses any suitable object or accessory such as a finger, a stylus, etc. on the touch-sensitive surface 3031 or on The operation near the touch-sensitive surface 3031), and drive the corresponding connection device according to the preset program. Optionally, the touch-sensitive surface 3031 may include two parts, a touch detection device and a touch controller. Among them, the touch detection device detects the user's touch orientation, and detects the signal brought by the touch operation, and transmits the signal to the touch controller; the touch controller receives the touch information from the touch detection device, converts it into contact coordinates, and sends it to the to the processor 308, and can receive and execute commands sent by the processor 308. In addition, the touch-sensitive surface 3031 can be implemented in various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch-sensitive surface 3031 , the input device 303 may also include other input devices 3032 . Specifically, other input devices 3032 may include, but are not limited to, one or more of physical keyboards, function keys (such as volume control keys, switch keys, etc.), trackballs, mice, joysticks, and the like.

The output device 304 can be used to display information input by the user or provided to the user and various graphical user interfaces of the terminal device 30. These graphical user interfaces can be composed of graphics, text, icons, videos and any combination thereof. The output device 304 may include a display panel 3041. Optionally, the display panel 3041 may be configured in the form of a liquid crystal display (English: liquid crystal display, LCD) or an organic light-emitting diode (English: organic light-emitting diode, OLED). Further, the touch-sensitive surface 3031 may cover the display panel 3041, and when the touch-sensitive surface 3031 detects a touch operation on or near it, the touch operation is sent to the processor 308 to determine the type of the touch event, and then the processor 308 determines the type of the touch event according to the The type provides a corresponding visual output on the display panel 3041. Although in FIG. 8, the touch-sensitive surface 3031 and the display panel 3041 are used as two independent components to realize input and input functions, in some embodiments, the touch-sensitive surface 3031 and the display panel 3041 can be integrated to realize input. and output functions.

The terminal device 30 may further include at least one sensor 305, such as a distance sensor, a light sensor, a motion sensor, and other sensors. Specifically, the distance sensor is used to detect the distance between the screen of the terminal device and the object covering the terminal device, and the light sensor is used to detect the light signal of the external environment of the terminal device. As a kind of motion sensor, the gravitational acceleration sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when it is stationary, and can be used to identify the application of terminal device 30 posture (such as horizontal and vertical screen switching) , related games, magnetometer attitude calibration), vibration recognition related functions (such as pedometer, knocking), etc.; as for other sensors such as gyroscopes, barometers, hygrometers, thermometers, and infrared sensors that can also be configured on the terminal device 30, I won't repeat them here.

The audio circuit 306 , the speaker 3061 and the microphone 3062 can provide an audio interface between the user and the terminal device 30 . The audio circuit 306 can transmit the electrical signal converted from the received audio data to the loudspeaker 3061, and the loudspeaker 3061 converts it into a sound signal output; After being received, it is converted into audio data, and then the audio data is processed by the output processor 308, and then sent to another device through the RF circuit 301, or the audio data is output to the memory 302 for further processing. The audio circuit 306 may also include an earplug jack to provide communication between an external earphone and the terminal device 30 .

WiFi is a short-distance wireless transmission technology. The terminal device 30 can help users send and receive emails, browse webpages, and access streaming media through the WiFi module 307. It provides users with wireless broadband Internet access. Although FIG. 8 shows a WiFi module 307, it can be understood that it is not an essential component of the terminal device 30, and can be completely omitted as required without changing the essence of the invention.

The processor 308 is the control center of the terminal device 30, and uses various interfaces and lines to connect various parts of the entire terminal device 30, and runs or executes computer programs and/or modules stored in the memory 302, and calls stored in the memory 302 data, execute various functions of the terminal device 30 and process data, so as to monitor the terminal device 30 as a whole. Optionally, the processor 308 may include one or more processing cores; preferably, the processor 308 may integrate an application processor and a modem processor, wherein the application processor mainly processes operating systems, user interfaces, and application programs, etc. , the modem processor mainly handles wireless communications. It can be understood that the foregoing modem processor may not be integrated into the processor 308 .

The terminal device 30 also includes a power supply 303 (such as a battery) for supplying power to various components. Preferably, the power supply can be logically connected to the processor 308 through the power management system, so that functions such as charging, discharging, and power consumption management can be realized through the power management system. . The power supply 303 may also include one or more DC or AC power supplies, recharging systems, power failure detection circuits, power converters or inverters, power status indicators, and any other components.

Although not shown, the terminal device 30 may also include a camera, a Bluetooth module, etc., which will not be repeated here. Specifically, in the embodiment of the present invention, the output device 304 (or input device 303) of the terminal device is a touch screen display, and the terminal device 30 also includes a memory 302, a processor 308, and one or more computer programs, wherein one or more A computer program is stored in the memory 302, and the processor 308 is used to call the domain name system DNS processing program stored in the memory 302 (non-volatile memory) to execute the steps and procedures of the methods in the foregoing method embodiments, which will not be repeated here.

An embodiment of the present invention also provides a computer storage medium, wherein the computer storage medium can store a program, and the program includes some or all steps of any domain name system DNS processing method described in the above method embodiments when executed.

It should be noted that, for the sake of simple description, the aforementioned method embodiments are expressed as a series of action combinations, but those skilled in the art should know that the present invention is not limited by

The sequence of actions described is limited because certain steps may be performed in other orders or simultaneously in accordance with the invention. Secondly, those skilled in the art should also know that the embodiments described in the specification belong to preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

In the foregoing embodiments, the descriptions of each embodiment have their own emphases, and for parts not described in detail in a certain embodiment, reference may be made to relevant descriptions of other embodiments.

In the several embodiments provided in this application, it should be understood that the disclosed device can be implemented in other ways. For example, the device embodiments described above are only illustrative. For example, the division of the units is only a logical function division. In actual implementation, there may be other division methods. For example, multiple units or components can be combined or can be Integrate into another system, or some features may be ignored, or not implemented. In another point, the mutual coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection of devices or units may be in electrical or other forms.

The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place, or may be distributed to multiple network units. Part or all of the units can be selected according to actual needs to achieve the purpose of the solution of this embodiment.

In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, each unit may exist separately physically, or two or more units may be integrated into one unit. The above-mentioned integrated units can be implemented in the form of hardware or in the form of software functional units.

If the integrated unit is realized in the form of software function unit and sold or used as an independent product, it can be stored in a computer-readable memory. Based on this understanding, the essence of the technical solution of the present invention or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product, and the computer software product is stored in a memory. Several instructions are included to make a computer device (which may be a personal computer, server or network device, etc.) execute all or part of the steps of the methods described in various embodiments of the present invention. The above-mentioned memory includes: various media capable of storing program codes such as USB flash drive, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), mobile hard disk, magnetic disk or optical disk.

Those of ordinary skill in the art can understand that all or part of the steps in the various methods of the above-mentioned embodiments can be completed by instructing related hardware through a program, and the program can be stored in a computer-readable memory, and the memory can include: a flash disk , Read-only memory (English: Read-Only Memory, abbreviated: ROM), random access device (English: Random Access Memory, abbreviated: RAM), magnetic disk or optical disk, etc.

The embodiments of the present invention have been described in detail above, and specific examples have been used in this paper to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only used to help understand the method and core idea of the present invention; at the same time, for Those skilled in the art will have changes in the specific implementation and scope of application according to the idea of the present invention. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (7)

1. A kind of 1. domain name system DNS processing method, it is characterised in that including：

   In the case where the access network for detecting terminal device switches, the DNS query request of target domain name is initiated；

   Receive dns resolution result corresponding to DNS query request, the dns resolution result include it is at least one with it is described First IP address corresponding to target domain name；

   First IP address is stored in the terminal device；

   Methods described also includes：

   Before the access network for detecting terminal device switches, the aiming field is stored with the terminal device Second IP address corresponding to name；

   If accessing network site failure corresponding to first IP address, network position corresponding to second IP address is accessed Put；

   If accessing network site failure corresponding to second IP address, the target domain name is sent to the terminal device Dns resolution result late note, to prompt the terminal device to carry out the renewal of IP address corresponding to the target domain name.
2. 2. the method as described in claim 1, it is characterised in that methods described also includes：

   When receiving the access instruction for the target domain name, the first IP being stored in the terminal device is accessed Network site corresponding to address.
3. 3. method as claimed in claim 1 or 2, it is characterised in that the access network switches including following at least one ：

   Switching between Wireless Fidelity Wi-Fi network and mobile data network；

   Switching between different mobile data networks；

   Switching between different Wi-Fi networks.
4. A kind of 4. domain name system DNS processing unit, it is characterised in that including：

   Enquiry module, in the case of being switched in the access network for detecting terminal device, initiate the DNS of target domain name Inquiry request；

   Receiving module, for receiving dns resolution result corresponding to DNS query request, the dns resolution result include to Few first IP address corresponding with the target domain name；

   First memory module, for first IP address to be stored in the terminal device；

   Described device also includes：

   Second memory module, for before the access network for detecting terminal device switches, the terminal device In be stored with the second IP address corresponding to the target domain name；

   Second access modules, if for accessing network site failure corresponding to first IP address, access the 2nd IP Network site corresponding to address；

   Notification module, if for accessing network site failure corresponding to second IP address, sent to the terminal device The dns resolution result late note of the target domain name, to prompt the terminal device to carry out corresponding to the target domain name The renewal of IP address.
5. 5. device as claimed in claim 4, it is characterised in that described device also includes：

   First access modules, for when receiving the access instruction for the target domain name, access to be stored in the terminal Network site corresponding to first IP address in equipment.
6. 6. the device as described in claim 4 or 5, it is characterised in that the access network switches including following at least one ：

   Switching between Wireless Fidelity Wi-Fi network and mobile data network；

   Switching between different mobile data networks；

   Switching between different Wi-Fi networks.
7. A kind of 7. terminal device, it is characterised in that including：

   It is stored with the memory of executable program code；

   The processor coupled with the memory；

   The processor calls the executable program code stored in the memory, performs as claims 1 to 3 is any Method described in.