CN106713454A - Network connection method and device - Google Patents
Network connection method and device Download PDFInfo
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- CN106713454A CN106713454A CN201611198389.0A CN201611198389A CN106713454A CN 106713454 A CN106713454 A CN 106713454A CN 201611198389 A CN201611198389 A CN 201611198389A CN 106713454 A CN106713454 A CN 106713454A
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- server
- connection
- connection request
- network
- internet resources
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/141—Setup of application sessions
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/142—Managing session states for stateless protocols; Signalling session states; State transitions; Keeping-state mechanisms
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L67/00—Network arrangements or protocols for supporting network services or applications
- H04L67/14—Session management
- H04L67/148—Migration or transfer of sessions
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- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Data Exchanges In Wide-Area Networks (AREA)
Abstract
The invention discloses a network connection method. The method comprises the steps that a user terminal sends a first connection request to a first server which provides network resources and starts timing at a time point of sending the first connection request; and the user terminal sends a second connection request to a second server which provides the network resources when first connection response returned by the first server is not received in preset first interval time and the user terminal is in a working state of waiting for the first connection response. The invention also discloses a network connection device. Through adoption of the embodiment of the invention, resource consumption is reduced, and the network connection rate is improved.
Description
Technical field
The present invention relates to electronic technology field, more particularly to a kind of method for connecting network and device.
Background technology
Due to the complex characteristics of mobile network, cell-phone customer terminal often enters weak net in a variety of geographical environments
Under network state, and the network service success rate of mobile phone is very low under vulnerable network state.Mobile Internet application is used mostly TCP associations
View, Transmission Control Protocol is directed to the transport layer protocol of wired networks design, and Transmission Control Protocol is simultaneously not suitable with the feature of mobile network, generally moves
Dynamic application and development selection Transmission Control Protocol.
Time-out is the most crucial part of Transmission Control Protocol with re-transmission, and in unstable mobile network, the design of Retransmission timeout is outstanding
For important.During connect and set up, due to network unreliable characteristic in itself, it is inevitable the need for retransmission mechanism protect
Barrier reliability services.In most of BSD (Berkeley Software Distribution, socket) realizations, if actively connecting
The side of connecing does not receive the response of SYN (synchronous, handshake), then sending the 2nd SYN at the 6th second is retried, then
Interval sends the 3rd SYN and is retried after 24 seconds, and response was not received also at the 75th second, then connect calls return
ETIMEOUT, therefore in the case where failure can not be confirmed at once, it is necessary to the time of 75 seconds could obtain result.If not being
User network is unavailable, but certain server break down, interface disabling, the factor such as unstable networks, that 75 seconds time can only
1 IP＆Port is attempted to being unacceptable.For example, the connect Retransmission timeouts for Android, can be by timeout interval
It is (1,2,4,8,16) to set gradually, and returns to ETIMEOUT within 32 seconds after the 5th is retried, and 63 seconds are needed altogether；For iOS's
Connect Retransmission timeouts, it is (1,1,1,1,1,2,4,8,16,32) that can set gradually timeout interval, and 67s is needed altogether.
In the prior art scheme, there are two kinds of Retransmission timeout internetwork connection modes：(1) it is connected in series, for each money
Source sequentially be attached trial.When there is multiple (IP, Port) resources, the efficiency of the strategy traversal of serial connection is relatively low,
Again because mobile Internet has unstable feature, time-out time sets too short, can cause in the case of vulnerable network,
Connect always fails, cause it is unavailable, therefore serial connection mode connection speed it is slow.(2) concurrently connect, while initiating to N
The call connected of individual (IP, Port), not only most can soon find available connection, and have also been found that connect is most fast
(IP, Port) is configured.But, server needs N times that the concatenation ability for providing is serial connection under the strategy for concurrently connecting,
It is greatly to waste to server connection resource.Meanwhile, concurrently connection can cause the competition of connection resource, so as to influence network just
Normal Consumer's Experience.
The content of the invention
The embodiment of the present invention provides a kind of method for connecting network and device.Resource consumption in prior art can be solved
Greatly, the low technical problem of network connection speed.
First aspect present invention provides a kind of method for connecting network, including：
User terminal sends the first connection request to the first server for providing Internet resources, and connects sending described first
The time point for connecing request starts timing；
The user terminal ought not receive first that the first server is returned within default first interval time
When connection response and the working condition in wait first connection response, to the second server for providing the Internet resources
Send the second connection request.
Wherein, it is described to after second server the second connection request of transmission for providing the Internet resources, also include：
Start timing at the time point for sending second connection request；
When the second connection response and place that the second server return is not received within default second interval time
When the working condition of second connection response is waited, send the 3rd to the 3rd server for providing the Internet resources and connect
Request.
Wherein, before the user terminal sends the first connection request to the first server for providing Internet resources, also wrap
Include：
The first connection timeout interval is set for first connection request respectively, is set for second connection request
Second connection timeout interval, wherein, the first connection timeout interval is more than first interval time, and second connection is super
When interval be more than second interval time.
Wherein, it is described to after second server the second connection request of transmission for providing the Internet resources, also include：
When receiving first connection response that the first server sends and receive the second server hair
During the second connection response sent, network service quality, the Yi Jisuo between the user terminal and the first server are determined
State the network service quality between user terminal and the second server；
The optimal corresponding first server of the network service quality of selection or the second server carry out net
Network is connected.
Wherein, it is described to after second server the second connection request of transmission for providing the Internet resources, also include：
Respond and receive the second server when the connection time-out for first connection request return is received
During the second connection response for returning, the network connection with the second server is set up.
Wherein, it is described to include to second server the second connection request of transmission for providing the Internet resources：
The second connection request is sent to the second server for providing the Internet resources by changing the network address, wherein,
The network address includes IP address and port numbers.
Correspondingly, second aspect present invention provides a kind of network connection device, including：
First sending module, for sending the first connection request to the first server for providing Internet resources, and is sending
The time point of first connection request starts timing；
Second sending module, does not receive what the first server was returned for working as within default first interval time
When the first connection response and the working condition in wait first connection response, to the second clothes for providing the Internet resources
Business device sends the second connection request.
Wherein, described device also includes：
3rd sending module, for starting timing at the time point for sending second connection request；When default
The second connection response of the second server return is not received in two interval times and is rung in waiting described second to connect
During the working condition answered, the 3rd connection request is sent to the 3rd server for providing the Internet resources.
Wherein, described device also includes：
Set of time module, for being directed to the first connection of first connection request setting timeout interval respectively, for institute
State the second connection request and the second connection timeout interval is set, wherein, the first connection timeout interval is more than the described first interval
Time, second interval time is more than second interval time.
Wherein, described device also includes：
Network selection module, first connection response of the first server transmission is received for working as and is received
During the second connection response that the second server sends, the network between the user terminal and the first server is determined
Network service quality between service quality and the user terminal and the second server；
The optimal corresponding first server of the network service quality of selection or the second server carry out net
Network is connected.
Wherein, described device also includes：
Network sets up module, and the response of connection time-out and reception that are returned for first connection request are received for working as
During the second connection response returned to the second server, set up and the network connection of the second server.
Wherein, second sending module specifically for：
The second connection request is sent to the second server is provided by changing the network address, wherein, the network ground
Location includes IP address and port numbers.
Correspondingly, third aspect present invention provides a kind of network connection device, including interface circuit, memory and place
Reason device, wherein, batch processing code is stored in the memory, and the processor is used to call what is stored in the memory
Program code, for performing following operation：
The first connection request is sent to the first server for providing Internet resources, and is sending first connection request
Time point starts timing；
When the first connection response and place that the first server return is not received within default first interval time
When the working condition of first connection response is waited, send second to the second server for providing the Internet resources and connect
Request.
Implement the embodiment of the present invention, first to first server the first connection request of transmission for providing Internet resources, and
The time point for sending first connection request starts timing, then described when not received within default first interval time
It is described to providing when the first connection response of first server return and the working condition in wait first connection response
The second server of Internet resources sends the second connection request, so as to not only reduce resource consumption, and improves network company
Connect speed.
Brief description of the drawings
Technical scheme in order to illustrate more clearly the embodiments of the present invention, below will be to that will use needed for embodiment description
Accompanying drawing be briefly described, it should be apparent that, drawings in the following description are some embodiments of the present invention, for this area
For those of ordinary skill, on the premise of not paying creative work, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is a kind of schematic flow sheet of the first embodiment of method for connecting network proposed by the present invention；
Fig. 2 is a kind of schematic diagram of composite network connection provided in an embodiment of the present invention；
Fig. 3 is a kind of schematic flow sheet of the second embodiment of method for connecting network proposed by the present invention；
Fig. 4 is a kind of structural representation of network connection device provided in an embodiment of the present invention；
Fig. 5 is the structural representation of another network connection device provided in an embodiment of the present invention.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is a part of embodiment of the invention, rather than whole embodiments.Based on this hair
Embodiment in bright, the every other implementation that those of ordinary skill in the art are obtained under the premise of creative work is not made
Example, belongs to the scope of protection of the invention.
Fig. 1 is refer to, Fig. 1 is a kind of schematic flow sheet of the first embodiment of method for connecting network proposed by the present invention.
As illustrated, the method in the embodiment of the present invention includes：
S101, user terminal sends the first connection request to the first server for providing Internet resources, and described sending
The time point of the first connection request starts timing.
Optionally, before user terminal sends the first connection request to the first server for providing Internet resources, respectively
The first connection timeout interval is set for first connection request, the second connection time-out is set for second connection request
Interval, wherein, the first connection timeout interval is more than first interval time, and the second connection timeout interval is more than institute
Stated for the second interval time.
In implementing, set in actual connection time-out, can be received according to different system features, connected applications
Consumer's Experience scope, can by connect call time-out be set to different values, it is also possible to be set to identical value.Example
Such as, in IOS systems, the connection timeout interval that can be called connect is set to 10s, and IOS can automatically carry out 6 in 10s
Secondary repeating transmission.And in android system, system initiated the 2nd repeating transmission at the 9th second, then by 12 seconds the 3rd time repeating transmission.
S102, the user terminal ought not receive what the first server was returned within default first interval time
When the first connection response and the working condition in wait first connection response, to the second clothes for providing the Internet resources
Business device sends the second connection request.
In implementing, second can be sent to the second server for providing the Internet resources by changing the network address
Connection request, wherein, the network address includes IP address and port numbers.
Optionally, timing is started at the time point for sending second connection request；When in default second interval time
The second connection response and the work shape in second connection response is waited that the second server is returned are not received inside
During state, the 3rd connection request is sent to the 3rd server for providing the Internet resources.
For example, as shown in Fig. 2 user terminal sends connection by (ip1, port1) to the server 1 for providing Internet resources
Request, and the connection timeout interval for setting is 12 seconds, after connection request sends out 4 seconds, user terminal is still in the company of wait
Connect the working condition of response, due to do not receive server 1 return connection response, user terminal by (ip2, port2) to
The server 2 for providing Internet resources sends connection request, the like, until having initiated 5 groups of call connecteds of IP＆Port.This
When equivalent to the pseudo- concurrent fashion for having used composite joint, successively to server 1, server 2, server 3, the kimonos of server 4
Network connection is set up in the business request of device 5.
In inventive embodiments, the first connection request is sent to the first server for providing Internet resources first, and in hair
The time point of first connection request is sent to start timing, then when not receiving described within default first interval time
When the first connection response of one server return and the working condition in wait first connection response, to the offer net
The second server of network resource sends the second connection request, so as to not only reduce resource consumption, and improves network connection
Speed.
Fig. 3 is refer to, Fig. 3 is a kind of schematic flow sheet of the second embodiment of method for connecting network proposed by the present invention.
As illustrated, the method in the embodiment of the present invention includes：
S301, user terminal sends the first connection request to the first server for providing Internet resources, and described sending
The time point of the first connection request starts timing.
Optionally, before user terminal sends the first connection request to the first server for providing Internet resources, respectively
The first connection timeout interval is set for first connection request, the second connection time-out is set for second connection request
Interval, wherein, the first connection timeout interval is more than first interval time, and the second connection timeout interval is more than institute
Stated for the second interval time.
In implementing, set in actual connection time-out, can be received according to different system features, connected applications
Consumer's Experience scope, can by connect call time-out be set to different values, it is also possible to be set to identical value.Example
Such as, in IOS systems, the connection timeout interval that can be called connect is set to 10s, and IOS can automatically carry out 6 in 10s
Secondary repeating transmission.And in android system, system initiated the 2nd repeating transmission at the 9th second, then by 12 seconds the 3rd time repeating transmission.
S302, the user terminal ought not receive what the first server was returned within default first interval time
When the first connection response and the working condition in wait first connection response, to the second clothes for providing the Internet resources
Business device sends the second connection request.
In implementing, second can be sent to the second server for providing the Internet resources by changing the network address
Connection request, wherein, the network address includes IP address and port numbers.
Optionally, timing is started at the time point for sending second connection request；When in default second interval time
The second connection response and the work shape in second connection response is waited that the second server is returned are not received inside
During state, the 3rd connection request is sent to the 3rd server for providing the Internet resources.
For example, as shown in Fig. 2 user terminal sends connection by (ip1, port1) to the server 1 for providing Internet resources
Request, and the connection timeout interval for setting is 12 seconds, after connection request sends out 4 seconds, user terminal is still in the company of wait
Connect the working condition of response, due to do not receive server 1 return connection response, user terminal by (ip2, port2) to
The server 2 for providing Internet resources sends connection request, the like, until having initiated 5 groups of call connecteds of IP＆Port.This
When equivalent to the pseudo- concurrent fashion for having used composite joint, successively to server 1, server 2, server 3, the kimonos of server 4
Network connection is set up in the business request of device 5.
S303, when receiving first connection response that the first server sends and receive the second service
During the second connection response that device sends, determine network service quality between the user terminal and the first server, with
And the network service quality between the user terminal and the second server.
S304, the optimal corresponding first server of the network service quality of selection or the second server enter
Row network connection.
For example, as shown in Fig. 2 server 1, server 2, server 3 return to connection response respectively, therefore user terminal can
To select server 1, server 2 or server 3 to set up network connection, the net of user terminal and server 1 can be respectively determined
The network service quality of network service quality, the network service quality of user terminal and server 2, user terminal and server 3, choosing
Select the corresponding server 3 of optimal network service quality and set up network connection.
Optionally, when receiving the connection time-out response that is returned for first connection request and receive described second
During the second connection response that server is returned, the network connection with the second server is set up.
For example, as shown in Fig. 2 after user terminal sends connection request to server 4 and server 5 respectively, in connection
Timeout interval does not receive the connection response that server 4 and server 5 are returned in 12 seconds, but receives server 1, server before
2 or server 3 return connection response, then only need to from server 1, server 2 or server 3 choose server set up network
Connection.
In inventive embodiments, the first connection request is sent to the first server for providing Internet resources first, and in hair
The time point of first connection request is sent to start timing, then when not receiving described within default first interval time
When the first connection response of one server return and the working condition in wait first connection response, to the offer net
The second server of network resource sends the second connection request, so as to not only reduce resource consumption, and improves network connection
Speed.
Fig. 4 is refer to, Fig. 4 is a kind of structural representation of network connection device proposed by the present invention.As illustrated, this hair
Device in bright embodiment includes：
First sending module 401, for sending the first connection request to the first server for providing Internet resources, and in hair
The time point of first connection request is sent to start timing.
Second sending module 402, returns for that ought not receive the first server within default first interval time
The first connection response for returning and during in the working condition for waiting first connection response, to providing the of the Internet resources
Two servers send the second connection request.
In implementing, second can be sent to the second server for providing the Internet resources by changing the network address
Connection request, wherein, the network address includes IP address and port numbers.
Optionally, as shown in figure 4, the device in the embodiment of the present invention also includes：
3rd sending module 403, for starting timing at the time point for sending second connection request；When default
The second connection response of the second server return is not received in second interval time and in wait second connection
During the working condition of response, the 3rd connection request is sent to the 3rd server for providing the Internet resources.
For example, as shown in Fig. 2 user terminal sends connection by (ip1, port1) to the server 1 for providing Internet resources
Request, and the connection timeout interval for setting is 12 seconds, after connection request sends out 4 seconds, user terminal is still in the company of wait
Connect the working condition of response, due to do not receive server 1 return connection response, user terminal by (ip2, port2) to
The server 2 for providing Internet resources sends connection request, the like, until having initiated 5 groups of call connecteds of IP＆Port.This
When equivalent to the pseudo- concurrent fashion for having used composite joint, successively to server 1, server 2, server 3, the kimonos of server 4
Network connection is set up in the business request of device 5.
Optionally, as shown in figure 4, the device in the embodiment of the present invention also includes：
Set of time module 404, sets the first connection timeout interval, is directed to for being directed to first connection request respectively
Second connection request sets second and connects timeout interval, wherein, between the first connection timeout interval is more than described first
Every the time, second interval time is more than second interval time.
In implementing, set in actual connection time-out, can be received according to different system features, connected applications
Consumer's Experience scope, can by connect call time-out be set to different values, it is also possible to be set to identical value.Example
Such as, in IOS systems, the connection timeout interval that can be called connect is set to 10s, and IOS can automatically carry out 6 in 10s
Secondary repeating transmission.And in android system, system initiated the 2nd repeating transmission at the 9th second, then by 12 seconds the 3rd time repeating transmission.
Optionally, as shown in figure 4, the device in the embodiment of the present invention also includes：
Network selection module 405, first connection response of the first server transmission is received for working as and is connect
When receiving the second connection response that the second server sends, determine between the user terminal and the first server
Network service quality between network service quality and the user terminal and the second server；The optimal institute of selection
Stating the corresponding first server of network service quality or the second server carries out network connection.
For example, as shown in Fig. 2 user terminal sends connection by (ip1, port1) to the server 1 for providing Internet resources
Request, and the connection timeout interval for setting is 12 seconds, after connection request sends out 4 seconds, user terminal is still in the company of wait
Connect the working condition of response, due to do not receive server 1 return connection response, user terminal by (ip2, port2) to
The server 2 for providing Internet resources sends connection request, the like, until having initiated 5 groups of call connecteds of IP＆Port.This
When equivalent to the pseudo- concurrent fashion for having used composite joint, successively to server 1, server 2, server 3, the kimonos of server 4
Network connection is set up in the business request of device 5.
For example, as shown in Fig. 2 server 1, server 2, server 3 return to connection response respectively, therefore user terminal can
To select server 1, server 2 or server 3 to set up network connection, the net of user terminal and server 1 can be respectively determined
The network service quality of network service quality, the network service quality of user terminal and server 2, user terminal and server 3, choosing
Select the corresponding server 3 of optimal network service quality and set up network connection.
Optionally, as shown in figure 4, the device in the embodiment of the present invention also includes：
Network sets up module 406, for when receive for first connection request return connection time-out response and
When receiving the second connection response that the second server is returned, the network connection with the second server is set up.
For example, as shown in Fig. 2 after user terminal sends connection request to server 4 and server 5 respectively, in connection
Timeout interval does not receive the connection response that server 4 and server 5 are returned in 12 seconds, but receives server 1, server before
2 or server 3 return connection response, then only need to from server 1, server 2 or server 3 choose server set up network
Connection.
In inventive embodiments, the first connection request is sent to the first server for providing Internet resources first, and in hair
The time point of first connection request is sent to start timing, then when not receiving described within default first interval time
When the first connection response of one server return and the working condition in wait first connection response, to the offer net
The second server of network resource sends the second connection request, so as to not only reduce resource consumption, and improves network connection
Speed.
Fig. 5 is refer to, Fig. 5 is the structural representation of another network connection device that the embodiment of the present invention is proposed.As schemed
Shown, the device can include：At least one processor 501, such as CPU, at least one communication interface 502, at least one deposits
Reservoir 503, at least one bus 505.Wherein, bus 505 is used to realize the connection communication between these components.Wherein, this hair
The communication interface 502 of device is wired sending port in bright embodiment, or wireless device, such as including antenna assembly,
Communication for carrying out signaling or data with other node devices.Memory 503 can be high-speed RAM memory, or
Non-labile memory (non-volatile memory), for example, at least one magnetic disk storage.Memory 503 is optional
Can also be at least one storage device for being located remotely from aforementioned processor 501.Batch processing code is stored in memory 503,
And processor 501 is used to call the program code stored in memory, for performing following operation：
The first connection request is sent to the first server for providing Internet resources, and is sending first connection request
Time point starts timing；
When the first connection response and place that the first server return is not received within default first interval time
When the working condition of first connection response is waited, send second to the second server for providing the Internet resources and connect
Request.
Wherein, processor 501 is additionally operable to perform following operating procedure：
Start timing at the time point for sending second connection request；
When the second connection response and place that the second server return is not received within default second interval time
When the working condition of second connection response is waited, send the 3rd to the 3rd server for providing the Internet resources and connect
Request.
Wherein, processor 501 is additionally operable to perform following operating procedure：
The first connection timeout interval is set for first connection request respectively, is set for second connection request
Second connection timeout interval, wherein, the first connection timeout interval is more than first interval time, and second connection is super
When interval be more than second interval time.
Wherein, processor 501 is additionally operable to perform following operating procedure：
When receiving first connection response that the first server sends and receive the second server hair
During the second connection response sent, network service quality, the Yi Jisuo between the user terminal and the first server are determined
State the network service quality between user terminal and the second server；
The optimal corresponding first server of the network service quality of selection or the second server carry out net
Network is connected.
Wherein, processor 501 is additionally operable to perform following operating procedure：
Respond and receive the second server when the connection time-out for first connection request return is received
During the second connection response for returning, the network connection with the second server is set up.
Wherein, processor 501 is additionally operable to perform following operating procedure：
The second connection request is sent to the second server for providing the Internet resources by changing the network address, wherein,
The network address includes IP address and port numbers.
It should be noted that for each foregoing embodiment of the method, in order to be briefly described, therefore it is all expressed as one it is
The combination of actions of row, but those skilled in the art should know, and the present invention is not limited by described sequence of movement, because
It is that, according to the present invention, certain some step can sequentially or simultaneously be carried out using other.Secondly, those skilled in the art also should
Know, embodiment described in this description belongs to preferred embodiment, involved action and module not necessarily this hair
Necessary to bright.
In the above-described embodiments, the description to each embodiment all emphasizes particularly on different fields, and is not described in certain embodiment
Part, may refer to the associated description of other embodiment.
One of ordinary skill in the art will appreciate that all or part of step in the various methods of above-described embodiment is can
Completed with instructing the hardware of correlation by program, the program can be stored in a computer-readable recording medium, storage
Medium can include：Flash disk, read-only storage (English：Read-Only Memory, referred to as：ROM), random access device (English
Text：Random Access Memory, referred to as：RAM), disk or CD etc..
The content download method and relevant device that are there is provided the embodiment of the present invention above, system are described in detail,
Specific case used herein is set forth to principle of the invention and implementation method, and the explanation of above example is use
Understand the method for the present invention and its core concept in help；Simultaneously for those of ordinary skill in the art, according to of the invention
Thought, will change in specific embodiments and applications, and in sum, this specification content should not be construed as
Limitation of the present invention.
Claims (13)
1. a kind of method for connecting network, it is characterised in that methods described includes：
User terminal sends the first connection request to the first server for providing Internet resources, and please first connection is sent
The time point asked starts timing；
The user terminal is when the first connection that the first server return is not received within default first interval time
When response and the working condition in wait first connection response, sent to the second server for providing the Internet resources
Second connection request.
2. the method for claim 1, it is characterised in that described to be sent to the second server for providing the Internet resources
After second connection request, also include：
Start timing at the time point for sending second connection request；
When do not received within default second interval time the second connection response that the second server returns and in etc.
When the working condition of second connection response, sending the 3rd connection to the 3rd server for providing the Internet resources please
Ask.
3. method as claimed in claim 2, it is characterised in that the user terminal is to the first server for providing Internet resources
Before sending the first connection request, also include：
The first connection timeout interval is set for first connection request respectively, second is set for second connection request
Connection timeout interval, wherein, the first connection timeout interval is more than between first interval time, the second connection time-out
Every more than second interval time.
4. the method for claim 1, it is characterised in that described to be sent to the second server for providing the Internet resources
After second connection request, also include：
When receiving first connection response that the first server sends and receive what the second server sent
During the second connection response, the network service quality and the use between the user terminal and the first server are determined
Network service quality between family terminal and the second server；
The optimal corresponding first server of the network service quality of selection or the second server carry out network company
Connect.
5. the method for claim 1, it is characterised in that described to be sent to the second server for providing the Internet resources
After second connection request, also include：
Respond and receive the second server return when the connection time-out for first connection request return is received
The second connection response when, set up and the network connection of the second server.
6. the method as described in claim 1-5 any one, it is characterised in that described to providing the second of the Internet resources
Server sends the second connection request to be included：
The second connection request is sent to the second server for providing the Internet resources by changing the network address, wherein, it is described
The network address includes IP address and port numbers.
7. a kind of network connection device, it is characterised in that described device includes：
First sending module is for sending the first connection request to the first server for providing Internet resources and described sending
The time point of the first connection request starts timing；
Second sending module, the first server is returned first is not received for working as within default first interval time
When connection response and the working condition in wait first connection response, to the second server for providing the Internet resources
Send the second connection request.
8. device as claimed in claim 7, it is characterised in that described device also includes：
3rd sending module, for starting timing at the time point for sending second connection request；Between default second
Every the second connection response that the second server return is not received in the time and in wait second connection response
During working condition, the 3rd connection request is sent to the 3rd server for providing the Internet resources.
9. device as claimed in claim 8, it is characterised in that described device also includes：
Set of time module, for be directed to respectively first connection request set first connect timeout interval, for described the
Two connection requests set second and connect timeout interval, wherein, the first connection timeout interval is more than first interval time,
Second interval time is more than second interval time.
10. device as claimed in claim 7, it is characterised in that described device also includes：
Network selection module, first connection response of the first server transmission is received for working as and is received described
During the second connection response that second server sends, the network service between the user terminal and the first server is determined
Network service quality between quality and the user terminal and the second server；
The optimal corresponding first server of the network service quality of selection or the second server carry out network company
Connect.
11. devices as claimed in claim 7, it is characterised in that described device also includes：
Network sets up module, responds and receives institute for that ought receive the connection time-out returned for first connection request
When stating the second connection response of second server return, the network connection with the second server is set up.
12. device as described in claim 7-11 any one, it is characterised in that second sending module specifically for：
The second connection request is sent to the second server is provided by changing the network address, wherein, the network address bag
Include IP address and port numbers.
13. a kind of network connection devices, it is characterised in that described device includes interface circuit, memory and processor, its
In, batch processing code is stored in the memory, and the processor is used to call the program generation stored in the memory
Code, for performing following operation：
The first connection request is sent to the first server for providing Internet resources, and is sending the time of first connection request
Point starts timing；
When do not received within default first interval time the first connection response that the first server returns and in etc.
When the working condition of first connection response, sending the second connection to the second server for providing the Internet resources please
Ask.
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