CN104811488B - Session keeping method and system based on load-balancing device and load-balancing device - Google Patents
Session keeping method and system based on load-balancing device and load-balancing device Download PDFInfo
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- CN104811488B CN104811488B CN201510173425.7A CN201510173425A CN104811488B CN 104811488 B CN104811488 B CN 104811488B CN 201510173425 A CN201510173425 A CN 201510173425A CN 104811488 B CN104811488 B CN 104811488B
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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
- H04L67/01—Protocols
- H04L67/10—Protocols in which an application is distributed across nodes in the network
- H04L67/1001—Protocols in which an application is distributed across nodes in the network for accessing one among a plurality of replicated servers
- H04L67/1004—Server selection for load balancing
- H04L67/1014—Server selection for load balancing based on the content of a request
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Abstract
The invention discloses a kind of session keeping method based on load-balancing device and system and load-balancing devices, and this approach includes the following steps：Receive the HTTP request from client；Judge HTTP request URL and/or HTTP request head in whether be embedded with the session identification of session for identification；If being embedded with session identification, session identification is extracted using key quality control point or regular expressions method；And judge currently to whether there is server corresponding with session identification；If in the presence of server corresponding with session identification, HTTP request is sent to server corresponding with session identification；If not being embedded with session identification or server corresponding with session identification being not present, HTTP request is sent to by server according to load balance scheduling algorithm；It receives the HTTP responses of the server feedback and transfers to client.The present invention can effectively improve the process performance of load-balancing device, be kept without requiring client that session can be realized using the browser of support cookie.
Description
Technical field
The present invention relates to computer realm more particularly to a kind of session keeping methods and system based on load-balancing device
And load-balancing device.
Background technology
Load balancing (Loadbalace) is a kind of server cluster technology, is to ask a large amount of of client according to certain
Strategy distribution give multiple servers processing so that the processing capacity of whole system reach or close to Servers-all processing capacity it
The technology of sum.It refers to passing through certain technical methods during load balancing that session, which keeps (Session Persistence),
Client request is identified so that originally belong to the request with a session, distribution always (or scheduling) as far as possible is arrived
Same server technology.
In the case of to multiple servers load balancing, conversation establishing is all only sent out on a current server each time
Raw, other servers are no.Load-balancing device has to identify the session in client request, and by request scheduling
Onto the server for initially creating the session, if dispatched on other servers, it can cause session that can not continue, final session
Request failure.
As shown in Figure 1, load-balancing device dispatches A, B two-server.Client has submitted a log on request,
It is supported equalizing equipment and is dispatched to A servers, and the check password success on A servers, then create session；And then client
The request of one " inquiry order " is had submitted again, load-balancing device has to the request scheduling to A servers at this time, because
Only there are the session status that the client had logged on A servers, if being scheduled to B servers, which does not know simultaneously
The Entered state of road client, request can then fail.
There is currently session keep technology include following several：
(1) source IP session keeps (Source Address Persistence):Session based on source IP keeps technology, leads to
The method for distinguishing source IP is crossed, the identical request of source IP is distributed to same server.During this mode is realized, client
It is often in intranet environment, the IP address used is private net address, and source address conversion is have passed through when accessing public network, is existed a large amount of
Client uses the case where same IP.It keeps being that the source address based on data packet is realized due to source IP session, can cause big
The client for measuring identical IP is dispatched to same server, unbalanced to dispatch.In addition for cell-phone customer terminal, source IP address
It is alternatively, not to be suitable for source IP session holding.
(2) Cookie is inserted into session and keeps (Cookie Insert Persistence):When client accesses for the first time, lead to
Insertion cookie is crossed, client is marked (server that the content of label corresponds to scheduling) so that client is subsequent to ask
It is marked with cookie in asking, scheduled server is identified by cookie labels, is finally reached same client
All effects for asking to be distributed to same server.Since its realization principle is the mode based on cookie, client it requires
The browser at end must support Cookie.
(3) Cookie rewrites session and keeps (Cookie Rewrite Persistence)：Session is inserted into cookie to protect
Similar, to be identified again by making marks in Cookie client request is held, the difference is that load equalizer is not inserted
Enter new cookie, but is realized by rewriting the cookie of server.This mode does not require nothing more than client browser branch
Cookie is held, and server is required to use Cookie.
(4) the passive sessions of Cookie keep (Cookie Passive Persistence)：Remember in the database of equipment
The lower server of record closes in cookie to session id and the session id of client distribution are corresponding with server
System.When client accesses again, the session id values in client cookie are got first, by searching for database,
Find the server of last scheduling, the final purpose realized session and kept.This scheme also requires that client is supported
Cookie, and server uses cookie record Session Id.
(5) the passive sessions of URL are kept：By obtaining the session id in URL, the service corresponding to each session is recorded
Device.This mode can only record the session id in URL, client request session id not in URL, but
It is not suitable for when in the list of submission.Even if session id in URL, due to different server the form of expression not
Equally, its identification is made to have difficulties.
Invention content
The technical problem to be solved in the present invention is, in view of the drawbacks of the prior art, provides one kind and is set based on load balancing
Standby session keeping method and system and load-balancing device.
The technical solution adopted by the present invention to solve the technical problems is：A kind of session holding based on load-balancing device
Method includes the following steps：
Receive the HTTP request from client；
Judge the HTTP request URL and/or HTTP request head in whether be embedded with the session of session for identification
Mark；
If being embedded with session identification, the session identification is extracted using key quality control point or regular expressions method；And sentence
It is disconnected currently to whether there is server corresponding with the session identification；If in the presence of service corresponding with the session identification
The HTTP request is then sent to server corresponding with the session identification by device；
It is equal according to load if not being embedded with session identification or server corresponding with the session identification being not present
The HTTP request is sent to server by weighing apparatus dispatching algorithm；
It receives the HTTP responses of the server feedback and transfers to the client.
Preferably, further include judging the HTTP request for POST request or GET request；
If POST request, then the session mark that session for identification whether is embedded in the list of the POST request is judged
Know；If being embedded with session identification, the session identification is extracted using key quality control point or regular expressions method；And judge current
With the presence or absence of server corresponding with the session identification；If, will in the presence of server corresponding with the session identification
The HTTP request is sent to server corresponding with the session identification；
It is not embedded with session identification if the list of GET request, POST request or is not present and the session identification phase
The HTTP request is then sent to the server determined according to load balance scheduling algorithm by corresponding server.
Preferably, HTTP responses for receiving the server feedback and to transfer to the client include following step
Suddenly：
Receive the HTTP responses；
Judge whether the HTTP reply header or HTTP response contents are embedded with the session identification of session for identification；
If being embedded with session identification, the session identification is extracted using key quality control point or regular expressions method, by institute
The correspondence for stating session identification and server stores in the database, and the HTTP responses are transmitted to client；
If not being embedded with session identification, the HTTP responses are transmitted to client.
Preferably, described to be included the following steps using key quality control point or regular expressions method extraction session identification：
Keyword, offset and the default session identification format of default session identification；
Session identification is extracted according to the keyword and offset using key quality control point, and judges whether successfully to extract
The session identification；
If extraction failure, the session identification is extracted according to the default session identification format using regular expressions method,
Otherwise terminate the extraction of session identification.
The present invention also provides a kind of load-balancing devices, including：
Information transmit-receive unit, for receiving the HTTP request from client, and by the server feedback received
HTTP responses transfer to the client；
Whether judging unit is embedded with for knowing in the URL and/or HTTP request head for judging the HTTP request
The session identification of other session；
First processing units, for when being embedded with session identification, then using key quality control point or regular expressions method to carry
Take the session identification；And judge currently to whether there is server corresponding with the session identification；If in the presence of with the meeting
Words identify corresponding server, then the HTTP request are sent to server corresponding with the session identification；
Second processing unit, for not being embedded with session identification in the HTTP request or being not present and the session mark
When sensible corresponding server, then the HTTP request is sent to by server according to load balance scheduling algorithm.
Preferably, the judging unit is additionally operable to judge the HTTP request as POST request or GET request, and
When the HTTP request is POST request, the session that session for identification whether is embedded in the list of the POST request is judged
Mark；
The first processing units are additionally operable to be embedded with session identification in the list of POST request, then use keyword
Matching method or regular expressions method extract the session identification；And judge currently to whether there is clothes corresponding with the session identification
Business device；If in the presence of server corresponding with the session identification, the HTTP request is sent to and the session identification
Corresponding server；
The second processing unit, be additionally operable to the HTTP request be GET request, POST request list be not embedded in
There is session identification or there is no when server corresponding with the session identification, then the HTTP request is sent to according to negative
Carry the server that equalized scheduling algorithm determines.
Preferably, the judging unit is additionally operable to judge the HTTP reply header or HTTP response contents of the HTTP responses
Whether the session identification of for identification session is embedded with；
The first processing units are additionally operable to, when HTTP reply header or HTTP response contents are embedded with session identification, adopt
The session identification is extracted with key quality control point or regular expressions method, the correspondence of the session identification and server is deposited
The HTTP responses in the database, and are transmitted to client by storage；
The second processing unit is additionally operable to when HTTP reply header or HTTP response contents are not embedded with session identification,
The HTTP responses are transmitted to client.
Preferably, the first processing units are additionally operable to execute following steps：
Keyword, offset and the default session identification format of default session identification；
Session identification is extracted according to the keyword and offset using key quality control point, and judges whether successfully to extract
The session identification；
If extraction failure, the session identification is extracted according to the default session identification format using regular expressions method,
Otherwise terminate the extraction of session identification.
The present invention also provides a kind of, and the session based on load-balancing device keeps system, including load balancing above-mentioned to set
Client and server that is standby, being connected with load-balancing device communication.
The present invention has the following advantages that compared with prior art：Implement the present invention, using key quality control point or canonical table
The URL for being embedded in HTTP request and/or the session identification in HTTP request head are extracted up to method, to improve load-balancing device
Process performance is kept without requiring client that session can be realized using the browser of support cookie.
Description of the drawings
Present invention will be further explained below with reference to the attached drawings and examples, in attached drawing：
Fig. 1 is the topological diagram of load-balancing device in the prior art；
Fig. 2 is the flow chart of the session keeping method based on load-balancing device in one embodiment of the invention；
Fig. 3 is the flow chart that session identification extracts in one embodiment of the invention；
Fig. 4 is the flow chart for receiving HTTP responses in one embodiment of the invention and transferring to client；
Fig. 5 is another flow chart of the session keeping method based on load-balancing device in one embodiment of the invention；
Fig. 6 is the functional block diagram of the load-balancing device in one embodiment of the invention.
In figure：10, information transmit-receive unit；20, judging unit；30, first processing units；40, second processing unit.
Specific implementation mode
For a clearer understanding of the technical characteristics, objects and effects of the present invention, now control attached drawing is described in detail
The specific implementation mode of the present invention.
Embodiment 1
Fig. 2 shows the session keeping method based on load-balancing device in the present embodiment, which includes
Following steps：
S11:Receive the HTTP request from client.
S12:Judge HTTP request URL and/or HTTP request head in whether be embedded with the session of session for identification
Mark.It is to be appreciated that session identification can be embedded in the URL of HTTP request or HTTP request head, it can also be simultaneously
The embedded session identification in the URL of HTTP request and HTTP request head.It is to be appreciated that by judging that URL and/or HTTP are asked
It asks whether head is embedded in session identification, can recognize that in most of HTTP requests whether carry session identification, to realize this programme meeting
Talk about the purpose kept.
S13:If being embedded with session identification in the URL of HTTP request and/or HTTP request head, keyword match is used
Method or regular expressions method extract session identification, it is possible to understand that it is corresponding with server to prestore session identification in the database for ground
Relationship.After extracting session identification, judged currently with the presence or absence of corresponding with session identification according to the session identification extracted
Server；If in the presence of server corresponding with session identification, HTTP request is sent to clothes corresponding with session identification
Business device so that its HTTP request can be dispatched to the server that first HTTP request accesses by client in a conversation procedure
In, to realize that session keeps purpose.
As shown in figure 3, being included the following steps using key quality control point or regular expressions method extraction session identification：
S131:Keyword, offset and the default session identification format of default session identification.
S132:Session identification is extracted according to keyword and offset using key quality control point, and judges whether successfully to carry
Take session identification.It is to be appreciated that if session identification using a certain keyword and when having fixed offset, passes through search key
Word simultaneously calculates offset, can quickly check and accept the position of session identification, and extract the session identification, and key quality control point extracts session
What is identified is more efficient.
S133:If session identification extraction failure extracts session using regular expressions method according to default session identification format
Mark, otherwise terminates the extraction of session identification, the URL and/or HTTP request head for being considered as HTTP request are not embedded with session
Mark.It is to be appreciated that when as long as session identification is using session identification format performance is preset, can extract using regular expressions method
The session identification, extraction is more comprehensively.
It is to be appreciated that by key quality control point and the extraction combination of regular expressions method to extract session identification, according to
Key quality control point has extracted session identification, then no longer needs to conversate marker extraction using regular expressions method, can effectively improve
The extraction efficiency of session identification simultaneously ensures extraction more comprehensively.
S14:If not being embedded with session identification in the URL of HTTP request and/or HTTP request head or participant being not present
Words identify corresponding server, then HTTP request are sent to server according to load balance scheduling algorithm.It is to be appreciated that
If client accesses server for the first time, i.e., when sending HTTP request for the first time, the URL of HTTP request and HTTP request head
Without embedded session identification, correspondingly, server corresponding with session identification is not present, therefore calculate using load balance scheduling
HTTP request is sent to server by method.
S15:It receives the HTTP responses of server feedback and transfers to client.It is to be appreciated that when client first time
When sending HTTP request by load-balancing device, load-balancing device sends HTTP request according to load balance scheduling algorithm
To server, server creates session, and HTTP responses are sent to client, since client does not support cookie, service
Session identification is embedded in all hyperlink of client, INPUT controls or other HTML codes by device.
As shown in figure 4, step S15 includes the following steps：
S151：Receive the HTTP responses that server is sent.
S152：Whether the HTTP reply header or HTTP response contents for judging HTTP responses are embedded with session for identification
Session identification.It is to be appreciated that (the first time HTTP for being connected to client transmission is asked server after a new session start
After asking, a session identification will be distributed for current session, which meets the requirement of preset keyword and offset,
And/or meet default session identification format, in order to be inquired.Since browser does not support cookie, the session identification without
Method is saved in cookie, therefore session identification is embedded into HTTP reply header or HTTP response contents and is returned by server
To client so that be all embedded with the session identification in all hyperlink of client or hiding INPUT controls so that visitor
It is embedded with the session identification on the URL for the HTTP request that family end is sent thereafter and/or HTTP request head.
S153：If being embedded with session identification in HTTP reply header or HTTP response contents, key quality control point is used
Or the extraction of regular expressions method is embedded in the session identification in HTTP reply header or HTTP response contents, it will words mark and service
HTTP responses in the database, and are transmitted to client by the correspondence storage of device, in order to be received again from same
When client is embedded with the HTTP request of session identification, HTTP request can be sent in server corresponding with session identification,
To realize that session is kept.
S154：If not being embedded with session identification in HTTP reply header or HTTP response contents, HTTP responses are forwarded
To client.If it is to be appreciated that session identification is not embedded in HTTP reply header or HTTP response contents, directly by HTTP
Response is transmitted to client, when receiving the HTTP request of client transmission again, can not directly be sent to HTTP request
Corresponding server can not achieve session holding.
It is to be appreciated that server handles the HTTP request of reception, HTTP request is fed back to load-balancing device
Response can be embedded with session identification in the HTTP responses, can not also be embedded with session identification.If the HTTP request of feedback is embedding
Enter session identification, load-balancing device extracts the session identification, and the correspondence of session identification and server is stored in number
According in library, when HTTP request in order to receive server transmission again, the direct basis session identification sends it to phase
The server answered, to improve the process performance of load-balancing device.
In the present embodiment, judge HTTP request URL and/or HTTP request head in whether be embedded in session for identification
Session identification, and ask HTTP request to be sent to corresponding server according to judging result, load-balancing device can be effectively improved
Process performance, without requiring client using the browser for supporting cookie.
As shown in figure 5, it further includes following steps to be somebody's turn to do the session keeping method based on load-balancing device：
S16：Judge HTTP request for POST request or GET request；
S17：If POST request, then the session mark that session for identification whether is embedded in the list of POST request is judged
Know.If being embedded with session identification, session identification is extracted using key quality control point or regular expressions method；And judge it is current whether
In the presence of server corresponding with session identification；If in the presence of server corresponding with session identification, HTTP request is sent
Give the corresponding server of session identification.
It is not embedded with session identification if the list of GET request, POST request or there is no corresponding with session identification
Server, then follow the steps S14, S15, then HTTP request be sent to the service determined according to load balance scheduling algorithm
Device.It is to be appreciated that if GET request, then only judge whether the URL of its HTTP request and/or HTTP request head are embedded with
Session identification determines server if not being embedded with session identification according to load balance scheduling algorithm.If it is to be appreciated that visitor
Automatic trigger access request in the javascript at family end, server can also be embedded in session identification in javascript.
In the present embodiment, judge HTTP request URL and/or the list of HTTP request head or POST request in it is whether embedding
Enter the session identification of session for identification, and ask HTTP request to be sent to corresponding server according to judging result, can effectively carry
The process performance of high load equalizing equipment, without requiring client to support the browser of cookie that session can be realized and keep.
Embodiment 2
Fig. 6 shows the load-balancing device in the present embodiment.The load-balancing device includes：
Information transmit-receive unit 10, for receiving the HTTP request from client and by the server feedback received
HTTP responses simultaneously transfer to client.
Whether judging unit 20 is embedded with for identification in the URL and/or HTTP request head for judging HTTP request
The session identification of session；And HTTP request is judged for POST request or GET request, when HTTP request is POST request, sentence
Whether the session identification of for identification session is embedded in the list of disconnected POST request.Even HTTP request is POST request, then
Judge the meeting that session for identification whether is embedded in the list of the URL of HTTP request, HTTP request head and/or POST request
Words mark；If HTTP request is GET request, it is useful only to judge whether the URL of HTTP request and/or HTTP request head are embedded in
In the session identification of identification session.It is to be appreciated that by judging that the list of URL and/or HTTP request head, POST request is
No embedded session identification can recognize that in most of HTTP requests whether carry session identification, to realize what this programme session was kept
Purpose.
First processing units 30, in the list of the URL of HTTP request, HTTP request head and/or POST request
When being embedded with session identification, then URL, the HTTP request head of key quality control point or regular expressions method extraction HTTP request are used
And/or the session identification in the list of POST request.It is to be appreciated that prestoring session identification and server in the database
Correspondence.After extracting session identification, judge currently to whether there is and session identification phase according to the session identification extracted
Corresponding server；If in the presence of server corresponding with session identification, HTTP request is sent to opposite with session identification
The server answered so that its HTTP request can be dispatched to what first HTTP request accessed by client in a conversation procedure
In server, to realize that session keeps purpose.
Specifically, first processing units 30 are additionally operable to execute following steps, to extract session identification：
Keyword, offset and the default session identification format of default session identification.
First key quality control point is used to extract session identification according to keyword and offset, and judges whether the successfully meeting of extraction
Words mark.It is to be appreciated that if session identification is using a certain keyword and when having fixed offset, simultaneously by search key
Offset is calculated, can quickly check and accept the position of session identification, and extract the session identification, key quality control point extracts session identification
It is more efficient.
If extraction failure, session identification is extracted according to default session identification format using regular expressions method, is otherwise terminated
The extraction of session identification is considered as in the list of the URL of HTTP request, HTTP request head and/or POST request and is not embedded with
Session identification.It is to be appreciated that as long as session identification uses when presetting session identification format performance, using regular expressions method
The session identification is extracted, extraction is more comprehensively.
It is to be appreciated that by key quality control point and the extraction combination of regular expressions method to extract session identification, according to
Key quality control point has extracted session identification, then no longer needs to conversate marker extraction using regular expressions method, can effectively improve
The extraction efficiency of session identification simultaneously ensures extraction more comprehensively.
Second processing unit 40, in the list of the URL of HTTP request, HTTP request head and/or POST request
It is not embedded with session identification or there is no when server corresponding with session identification, is calculated according to load balance scheduling
HTTP request is sent to server by method.It is to be appreciated that the HTTP request includes POST request and/or GET request.
Specifically, judging unit 20 is additionally operable to judge whether HTTP reply header or HTTP response contents are embedded with for knowing
The session identification of other session.
First processing units 30 are additionally operable to when HTTP reply header or HTTP response contents are embedded with session identification, are used
Key quality control point or regular expressions method extract session identification, it will words mark and the correspondence of server are stored in database
In, and HTTP responses are transmitted to client.It is to be appreciated that the HTTP responses of load-balancing device resolution server feedback,
Embedded session identification is extracted from the html codes such as HTTP reply header or HTTP response contents and by session identification and server
Correspondence storage in the database so that load-balancing device receive again client transmission HTTP request when, carry
Take the session identification in the list of the URL of HTTP request, HTTP request head or POST request, by HTTP request be sent to
In the corresponding server of session identification, to realize that session is kept without the cookie dependent on browser.
Second processing unit 40 is additionally operable to when HTTP reply header or HTTP response contents are not embedded with session identification, will
HTTP responses are transmitted to client.If it is to be appreciated that not being embedded with session mark in HTTP reply header or HTTP response contents
Know, HTTP responses are directly transmitted to client, receive again the client transmission HTTP request when, can not directly by
HTTP request is sent to corresponding server, can not achieve session holding.
Load-balancing device provided by the present invention is embedded in HTTP using key quality control point or the extraction of regular expressions method
The URL and/or the session identification in HTTP request head of request, to improve the process performance of load-balancing device, without requiring
Session holding can be realized using the browser of support cookie in client.
The present invention also provides a kind of, and the session based on load-balancing device keeps system, including load balancing above-mentioned to set
Client and server that is standby, being connected with load-balancing device communication.
The present invention is illustrated by several specific embodiments, it will be appreciated by those skilled in the art that, it is not departing from
In the case of the scope of the invention, various transformation and equivalent substitute can also be carried out to the present invention.In addition, being directed to particular condition or tool
Body situation can do various modifications, without departing from the scope of the present invention to the present invention.Therefore, the present invention is not limited to disclosed
Specific embodiment, and should include whole embodiments for falling within the scope of the appended claims.
Claims (5)
1. a kind of session keeping method based on load-balancing device, which is characterized in that including
Following steps：
Receive the HTTP request from client；
Judge the HTTP request URL and/or HTTP request head in whether be embedded with the session identification of session for identification；
Further include judging the HTTP request for POST request or GET request；
If the HTTP request is POST request, judge that URL, HTTP request head and/or the POST of the HTTP request are asked
Whether the session identification of for identification session is embedded in the list asked；If the HTTP request is GET request, institute is only judged
It states the URL of HTTP request and/or whether HTTP request head is embedded with the session identification of session for identification；
If being embedded with session identification, the session identification, the use are extracted using key quality control point or regular expressions method
Key quality control point or regular expressions method extraction session identification include the following steps：
Keyword, offset and the default session identification format of default session identification；
Session identification is extracted according to the keyword and offset using key quality control point, and judges whether successfully to extract described
Session identification；
If extraction failure, the session identification is extracted according to the default session identification format using regular expressions method, otherwise
Terminate the extraction of session identification；And judge currently to whether there is server corresponding with the session identification；If in the presence of with institute
The corresponding server of session identification is stated, then the HTTP request is sent to server corresponding with the session identification；
If the list of the URL of the GET request or the POST request, HTTP request head and/or POST request are not embedded in
It is useful for the session identification of identification session or server corresponding with the session identification is not present, then according to load balancing tune
Degree algorithm determines a server, and the HTTP request is sent to the server of the determination；
It receives the HTTP responses of the server feedback and transfers to the client.
2. the session keeping method according to claim 1 based on load-balancing device, which is characterized in that the reception institute
It states the HTTP responses of server feedback and transfers to the client and include the following steps：
Receive the HTTP responses；
Judge whether the HTTP reply header or HTTP response contents are embedded with the session identification of session for identification；
If being embedded with session identification, the session identification is extracted using key quality control point or regular expressions method, by the meeting
Words mark and the correspondence of server store in the database, and the HTTP responses are transmitted to client；
If not being embedded with session identification, the HTTP responses are transmitted to client.
3. a kind of load-balancing device, which is characterized in that including：
Information transmit-receive unit (10), for receiving the HTTP request from client, and by the server feedback received
HTTP responses transfer to the client；
Whether judging unit (20) is embedded with for knowing in the URL and/or HTTP request head for judging the HTTP request
The session identification of other session；It is additionally operable to judge the HTTP request for POST request or GET request, and in the HTTP request
For POST request when, then judge whether embedding in the list of the URL of the HTTP request, HTTP request head and/or POST request
Enter the session identification for being useful for identification session；If the HTTP request is GET request, the URL of the HTTP request is only judged
And/or whether HTTP request head is embedded with the session identification of session for identification；
First processing units (30), for when being embedded with session identification, then using key quality control point or regular expressions method to carry
Take the session identification；And judge currently to whether there is server corresponding with the session identification；If in the presence of with the meeting
Words identify corresponding server, then the HTTP request are sent to server corresponding with the session identification；It is described
First processing units (30) are additionally operable to execute following steps：
Keyword, offset and the default session identification format of default session identification；
Session identification is extracted according to the keyword and offset using key quality control point, and judges whether successfully to extract described
Session identification；
If extraction failure, the session identification is extracted according to the default session identification format using regular expressions method, otherwise
Terminate the extraction of session identification；
Second processing unit (40), for not being embedded with session identification in the HTTP request or being not present and the session mark
When sensible corresponding server, then the HTTP request is sent to by server according to load balance scheduling algorithm；It is additionally operable to institute
The list for stating the URL of GET request or the POST request, HTTP request head and/or POST request is not embedded with for knowing
Server corresponding with the session identification is not present in the session identification of other session, then true according to load balance scheduling algorithm
Determine a server, and the HTTP request is sent to the server of the determination.
4. load-balancing device according to claim 3, which is characterized in that
The judging unit (20) is additionally operable to judge whether the HTTP reply header of the HTTP responses or HTTP response contents are embedding
Enter the session identification for being useful for identification session；
The first processing units (30) are additionally operable to, when HTTP reply header or HTTP response contents are embedded with session identification, adopt
The session identification is extracted with key quality control point or regular expressions method, the correspondence of the session identification and server is deposited
The HTTP responses in the database, and are transmitted to client by storage；
The second processing unit (40) is additionally operable to when HTTP reply header or HTTP response contents are not embedded with session identification,
The HTTP responses are transmitted to client.
5. a kind of session based on load-balancing device keeps system, it is characterised in that：Described in claim any one of 3-4
Load-balancing device, with the load-balancing device communicate the client and server that is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN105338063A (en) * | 2015-09-30 | 2016-02-17 | 北京奇虎科技有限公司 | Multi-server user session sharing method and device |
| CN105553870B (en) * | 2015-12-11 | 2020-03-17 | 小米科技有限责任公司 | Service request distribution method and device |
| WO2017222615A1 (en) * | 2016-06-21 | 2017-12-28 | Oracle International Corporation | Internet cloud-hosted natural language interactive messaging system sessionizer |
| CN106101290B (en) * | 2016-08-25 | 2020-12-11 | Tcl科技集团股份有限公司 | Server cluster management method and system |
| EP3513307A1 (en) | 2016-09-16 | 2019-07-24 | Oracle International Corporation | Internet cloud-hosted natural language interactive messaging system with intent determination |
| CN108153761A (en) * | 2016-12-05 | 2018-06-12 | 阿里巴巴集团控股有限公司 | Access the method, apparatus of network picture and response to network picture access |
| CN106686129A (en) * | 2017-01-23 | 2017-05-17 | 天地融科技股份有限公司 | Load balancing method and load balancing system |
| CN106713499A (en) * | 2017-01-23 | 2017-05-24 | 天地融科技股份有限公司 | Load balancing method, equipment and system |
| CN108696554B (en) * | 2017-04-10 | 2021-11-30 | 北京京东尚科信息技术有限公司 | Load balancing method and device |
| CN108055312B (en) * | 2017-12-07 | 2021-07-09 | 畅捷通信息技术股份有限公司 | Routing method and device thereof, computer device and readable storage medium thereof |
| CN108076149B (en) * | 2017-12-15 | 2021-07-23 | 杭州迪普科技股份有限公司 | Session maintaining method and device |
| CN108881430A (en) * | 2018-06-14 | 2018-11-23 | 平安科技（深圳）有限公司 | Session keeping method, device, computer equipment and storage medium |
| CN109246222A (en) * | 2018-09-21 | 2019-01-18 | 郑州云海信息技术有限公司 | service request processing method, device, system and computer readable storage medium |
| CN109474705B (en) * | 2018-12-28 | 2021-04-27 | 杭州迪普科技股份有限公司 | Session maintaining method and device |
| CN109688229A (en) * | 2019-01-24 | 2019-04-26 | 江苏中云科技有限公司 | Session keeps system under a kind of load balancing cluster |
| CN110233902B (en) * | 2019-06-28 | 2022-03-01 | 杭州迪普科技股份有限公司 | Session processing method and device, electronic equipment and machine-readable storage medium |
| CN112241418B (en) * | 2019-07-17 | 2023-04-18 | 金篆信科有限责任公司 | Distributed database preprocessing method, agent layer, system and storage medium |
| CN110417876B (en) * | 2019-07-17 | 2021-10-29 | 中移（杭州）信息技术有限公司 | Session method, node server in distributed system and master control equipment |
| CN111045823A (en) * | 2019-12-11 | 2020-04-21 | 上海智臻智能网络科技股份有限公司 | Context data load distribution method, device, equipment and storage medium |
| CN111917767B (en) * | 2020-07-29 | 2022-06-07 | 苏州浪潮智能科技有限公司 | Client request authentication method, device, equipment and storage medium |
| CN112202836A (en) * | 2020-09-04 | 2021-01-08 | 苏州浪潮智能科技有限公司 | Method, system, terminal and storage medium for maintaining client session information |
| CN113014629A (en) * | 2021-02-10 | 2021-06-22 | 上海牙木通讯技术有限公司 | Proxy forwarding method of handle identifier, server and computer readable storage medium |
| CN113259429B (en) * | 2021-05-11 | 2023-12-05 | 鸬鹚科技(深圳)有限公司 | Session maintenance management and control method, device, computer equipment and medium |
| CN114338689A (en) * | 2021-12-30 | 2022-04-12 | 中国工商银行股份有限公司 | Session holding method, apparatus, device, medium, and program product |
| CN114866442B (en) * | 2022-05-31 | 2023-05-26 | 杭州迪普科技股份有限公司 | 8583 protocol-based cross-virtual service session maintenance test method and device |
| CN114827239A (en) * | 2022-05-31 | 2022-07-29 | 杭州迪普科技股份有限公司 | Bidirectional session holding method and device based on 8583 protocol |
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| CN102075409B (en) * | 2009-11-24 | 2013-03-20 | 华为技术有限公司 | Method and system for processing request message as well as load balancer equipment |
| CN101783771A (en) * | 2010-03-24 | 2010-07-21 | 杭州华三通信技术有限公司 | Method and equipment for realizing load balance continuity |
| CN102780619B (en) * | 2012-07-23 | 2015-03-11 | 北京星网锐捷网络技术有限公司 | Method and device for processing message |
| CN102819710B (en) * | 2012-08-22 | 2014-11-12 | 西北工业大学 | Cross-site script vulnerability detection method based on percolation test |
| CN103685329B (en) * | 2012-08-30 | 2017-11-21 | 华耀(中国)科技有限公司 | Advanced access control system and method based on load balancing |
| CN103457869A (en) * | 2013-08-28 | 2013-12-18 | 北京星网锐捷网络技术有限公司 | Conversation maintaining method and device |
| CN103957207B (en) * | 2014-04-29 | 2017-11-28 | 北京太一星晨信息技术有限公司 | A kind of session keeping method and device |
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