CN103856462B - Method and system for managing sessions - Google Patents
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- CN103856462B CN103856462B CN201210514591.5A CN201210514591A CN103856462B CN 103856462 B CN103856462 B CN 103856462B CN 201210514591 A CN201210514591 A CN 201210514591A CN 103856462 B CN103856462 B CN 103856462B
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- 238000000034 method Methods 0.000 title abstract description 6
- 238000001514 detection method Methods 0.000 claims abstract description 25
- 238000007726 management method Methods 0.000 claims description 28
- 238000003780 insertion Methods 0.000 claims description 15
- 230000037431 insertion Effects 0.000 claims description 15
- 230000004048 modification Effects 0.000 claims description 12
- 238000012986 modification Methods 0.000 claims description 12
- 230000008520 organization Effects 0.000 claims description 8
- 230000008859 change Effects 0.000 claims description 5
- 238000013507 mapping Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 230000006399 behavior Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
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- 238000012217 deletion Methods 0.000 description 1
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Abstract
The invention discloses a method and system for managing sessions. The method comprises the steps that a red-black tree and a hash table are respectively used for organizing the sessions in advance, each node of the red-black tree comprises a keyword and a node value, the keywords are timeout, and the node values are sets of all session names corresponding to the timeout; each item of the hash table comprises a key object and a value object, the key objects are the session names, and the value objects comprise the timeout and session information; the corresponding session names are searched for in the red-black tree with the timeout as the keywords, and the corresponding timeout and the corresponding session information are searched for in the hash table with the session names as the key objects. According to the technical scheme, the corresponding sessions can be searched for through the session names or the timeout, and therefore session detection efficiency is improved.
Description
Technical field
The present invention relates to networking technology area, more particularly, to a kind of management method of session and system.
Background technology
In a communication network, session refers to the connection between the webserver and client and correlation behavior, the webserver
If the session with client is not asked at a certain time interval, think session timeout, then server can reclaim phase
Close resource, to increase operation rate.One session generally includes session name, time-out time and session information, wherein, session name
For session of unique mark, typically using ID or user name as session name；Time-out time generally uses unix
Timestamp, unix timestamp is a kind of time representation, is defined as 00 when 1970 01 month 01 day 00 Greenwich Mean Time
To present total number of seconds from dividing 00 second；Session information is the data structure preserving with session and user-dependent information, Ke Yishi
The User logs in time, the last activity time, business datum etc..
At present, generally carry out detecting session by traveling through all sessions in chained list, but, the detection side of this traversal
There is drawback in formula, if number of sessions is huge, detection efficiency can compare lowly, and the quantity with the session of management increases, this
The efficiency of detection mode can be worse and worse；And, this detection method cannot be detected according to session name corresponding to time-out
Time.
Content of the invention
The technical problem to be solved in the present invention is, the above-mentioned efficiency for prior art is low and cannot be according to session name
To detect the defect of corresponding time-out time, a kind of management method of session and system be provided, efficiency high and can be according to session
Title is detecting corresponding time-out time.
The technical solution adopted for the present invention to solve the technical problems is：Construct a kind of management method of session, including：
In advance respectively using the multiple session of RBTree and Hash table organization, wherein, each node of RBTree includes key
Word and nodal value, described keyword is time-out time, and described nodal value is all session names corresponding to this time-out time
Set；Each inclusion key object of Hash table and value object, and described key object is session name, described value object includes surpassing
When time and session information；
With time-out time for the corresponding session name of keyword search in described RBTree, and in described Hash table with
Session name searches corresponding time-out time and session information for key object.
In the management method of session of the present invention, when inserting session, follow the steps below：
In described Hash table：
Corresponding cryptographic Hash is calculated according to the session name being inserted into, and is calculated in described Kazakhstan according to the cryptographic Hash being calculated
Relevant position in uncommon table；
Insert the mapping of session name and time-out time, session information in described relevant position；
In described RBTree：
The corresponding node of described time-out time is searched according to the time-out time being inserted into；
If finding corresponding node, session name corresponding with described time-out time in described Hash table is added to
In the nodal value of described respective nodes；
If searching less than corresponding node, node is created for keyword with described time-out time, and by described Hash table
In session name corresponding with described time-out time be added in the nodal value of created node.
In the management method of session of the present invention, change special session title time-out time when, carry out with
Lower step：
According to described special session title, search corresponding time-out time and session information in described Hash table, and repair
Change the time-out time corresponding to special session title described in Hash table；
With the time-out time that found for the corresponding node of keyword search in described RBTree, and found
The nodal value of node in delete described special session title；
With new time-out time for the corresponding node of keyword search in described RBTree, and finding corresponding section
During point, described special session title is added in the nodal value of this node；When searching less than corresponding node, with described new
Time-out time be that keyword creates node, and described special session title is added in the nodal value of created node.
In the management method of session of the present invention, in time-out detection, follow the steps below：
Find the node that time-out time is less than current time successively in described RBTree, and return institute from each node
The session name corresponding to respective nodes finding.
The present invention also constructs a kind of management system of session, including：
Memory module, in advance respectively using the multiple session of RBTree and Hash table organization, wherein, RBTree each
Node includes keyword and nodal value, and described keyword is time-out time, and described nodal value is the institute corresponding to this time-out time
There is the set of session name；Each inclusion key object of Hash table and value object, and described key object is session name, described
Value object includes time-out time and session information；
Searching modul, in described RBTree with time-out time for the corresponding session name of keyword search, and
In described Hash table, corresponding time-out time and session information are searched for key object with session name.
In the management system of session of the present invention, also include：For inserting the insertion module of session and described slotting
Enter module to include：
First insertion unit, for, in described Hash table, corresponding cryptographic Hash being calculated according to the session name being inserted into,
And the relevant position being calculated in described Hash table according to the cryptographic Hash that calculated；And, insert session in described relevant position
Title and time-out time, the mapping of session information；
Second insertion unit, for, in described RBTree, searching corresponding node according to the time-out time being inserted into；If
Find corresponding node, then session name corresponding to described time-out time in described Hash table is added to described corresponding section
In the nodal value of point；If searching less than corresponding node, node is created for keyword with described time-out time, and by described Kazakhstan
In uncommon table, session name corresponding with described time-out time is added in the nodal value of created node.
In the management system of session of the present invention, also include time-out time for changing special session title
Modified module, and described modified module includes：
First modification unit, for according to described special session title, search in described Hash table accordingly time-out when
Between and session information, and when the time-out time corresponding to special session title described in described Hash table is revised as new overtime
Between；
Second modification unit, for corresponding for keyword search with the time-out time being found in described RBTree
Node, and delete described special session title in the nodal value of the node being found；Then, with new in described RBTree
Time-out time be the corresponding node of keyword search, if finding corresponding node, by described special session title add
To in the nodal value of this node；If searching less than corresponding node, node is created for keyword with described new time-out time,
And described special session title is added in the nodal value of created node.
In the management system of session of the present invention, also include：
Overtime detection module, for find from each node successively in described RBTree time-out time be less than current when
Between node, and return the session name corresponding to found respective nodes.
Implement technical scheme, when conversating detection, can be with time-out time as keyword in RBTree
Search corresponding session name, and, also can in Hash table with session name for key object search corresponding time-out time and
Session information, also can search corresponding session by any one of session name or time-out time, thus improve session
The efficiency of detection.
Brief description
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing：
Fig. 1 is that the present invention uses RBTree to organize the schematic diagram of multiple session embodiments one；
Fig. 2 is the schematic diagram that the present invention uses Hash table organization multiple session embodiment one；
Fig. 3 is the flow chart of the management method embodiment one of session of the present invention；
Fig. 4 is the logic chart of the management system embodiment one of session of the present invention；
Fig. 5 is the logic chart of the management system embodiment two of session of the present invention.
Specific embodiment
Fig. 1 is that the present invention uses RBTree to organize the schematic diagram of multiple session embodiments one, and RBTree includes multiple sections
Point, each node includes keyword and nodal value, and wherein, keyword is a time out the time, and nodal value is corresponding to this time-out time
All session names set, for example, time-out time is the nodal value of 1 node（Session name）For se10, time-out time
The nodal value of the node for 2 is se20, se21, and time-out time is the nodal value of 3 node is se30, se31, and time-out time is 4
Node nodal value be se40, se41, time-out time be 5 node nodal value be se50, se51, time-out time is 6
The nodal value of node is se60, se61, se62, and time-out time is the nodal value of 7 node is se70, se71, and the rest may be inferred.
Fig. 2 is that the present invention uses Hash（hash）The schematic diagram of table organization's multiple session embodiment one, Hash table includes many
Individual item, each includes key object and value object, and described key object is session name, described value object include time-out time and
Session information.For example, the value object for se10 for the session name is 1（Time-out time）And data10（Session information）, session name
Value object for se20 is 2 and data20, and session name is the value object of se21 is 2 and data21, and session name is se40's
Value object is 4 and data40, and session name is the value object of se41 is 4 and data41, and session name is the value object of se60 is 6
And data60, the rest may be inferred.
Fig. 3 is the flow chart of the management method embodiment one of session of the present invention, and the management method of this session includes：
S10. in advance respectively using the multiple session of RBTree and Hash table organization, referring in particular to Fig. 1 and Fig. 2, wherein, red-black
Each node of tree includes keyword and nodal value, and keyword is time-out time, and nodal value is the institute corresponding to this time-out time
There is the set of session name；Each inclusion key object of Hash table and value object, and key object is session name, value object bag
Include time-out time and session information；
S20. with time-out time for the corresponding session name of keyword search in RBTree, and with session in Hash table
Entitled key object searches corresponding time-out time and session information.
Implement the technical scheme of this embodiment, when conversating detection, can be with time-out time as key in RBTree
Corresponding session name searched in word, and, also in Hash table, corresponding time-out time can be searched for key object with session name
And session information, also corresponding session can be searched by any one of session name or time-out time, thus improve meeting
The efficiency of words detection.
In another embodiment of the management method of session of the present invention, after step slo, to insert session, bag
Include session name, time-out time and session information, then follow the steps below：
In Hash table：Corresponding cryptographic Hash is calculated according to the session name being inserted into, and according to the cryptographic Hash being calculated
Calculate the relevant position in Hash table；Then, session name and time-out time, the reflecting of session information are inserted in relevant position
Penetrate；
Secondly, in RBTree：The corresponding node of time-out time is searched according to the time-out time being inserted into；If finding phase
The node answered, then session name corresponding with time-out time in Hash table is added in the nodal value of respective nodes；If searching
Less than corresponding node, then node is created for keyword with time-out time, and by session corresponding with time-out time in Hash table
Title is added in the nodal value of created node.
In the further embodiment of the management method of session of the present invention, after step slo, to change special session
The time-out time of title, then follow the steps below：
According to special session title, Hash table is searched corresponding time-out time and session information, and changes Hash table
Time-out time corresponding to middle special session title；
With the time-out time that found for the corresponding node of keyword search in RBTree, and in the section being found
The nodal value of point（Session name set）Middle deletion special session title；
With new time-out time for the corresponding node of keyword search in RBTree, and finding corresponding node
When, special session title is added in the nodal value of this node；When searching less than corresponding node, with new time-out time
Create node for keyword, and special session title is added in the nodal value of created node.
In another embodiment of the management method of session of the present invention, when carrying out time-out detection, in RBTree successively
Find the node that time-out time is less than current time from each node, and return the meeting corresponding to found respective nodes
Words title.
Fig. 4 is the logic chart of the management system embodiment one of session of the present invention, including memory module 10 and searching modul 20,
Wherein, memory module 10 is used in advance respectively using the multiple session of RBTree and Hash table organization, wherein, each section of RBTree
Point includes keyword and nodal value, and keyword is time-out time, and nodal value is all session names corresponding to this time-out time
Set；Each inclusion key object of Hash table and value object, and key object is session name, value object includes time-out time
And session information.Searching modul 20 is used in RBTree with time-out time for the corresponding session name of keyword search, and
In Hash table, corresponding time-out time and session information are searched for key object with session name.
Fig. 5 is the logic chart of the management system embodiment two of session of the present invention, including memory module 10, searching modul 20,
Insertion module 30, modified module 40 and overtime detection module 50, wherein, the memory module 10 of this embodiment, searching modul 20 with
Memory module 10 in embodiment shown in Fig. 4, searching modul 20 logical structure identical, will not be described here, only say below
Bright insertion module 30, modified module 40 and overtime detection module 50.
Insertion module 30 is used for inserting session, including session name, time-out time and session information, and, insert module
30 include the first insertion unit and the second insertion unit, and wherein, the first insertion unit is used in Hash table, according to be inserted into
Session name calculates corresponding cryptographic Hash, and the relevant position calculating in Hash table according to the cryptographic Hash being calculated；And,
Relevant position insertion session name and time-out time, the mapping of session information；Second insertion unit is used in RBTree, according to
The time-out time being inserted into searches corresponding node；If finding corresponding node, will be corresponding with time-out time in Hash table
Session name be added in the nodal value of respective nodes；If searching less than corresponding node, with time-out time as keyword
Create node, and session name corresponding with time-out time in Hash table is added in the nodal value of created node.
Modified module 40 is used for changing the time-out time of special session title, and modified module includes the first modification unit
With the second modification unit, wherein, the first modification unit is used for according to special session title, searches time-out accordingly in Hash table
Time and session information, and the time-out time corresponding to special session title in Hash table is revised as new time-out time；The
Two modification units are used for the time-out time that found for the corresponding node of keyword search in RBTree, and are being searched
To node nodal value in delete special session title；Then, with new time-out time as keyword search in RBTree
Corresponding node, if finding corresponding node, special session title is added in the nodal value of this node；If searching not
To corresponding node, then node is created for keyword with new time-out time, and special session title is added to is created section
In the nodal value of point.
Overtime detection module 50 is used for finding time-out time in RBTree successively from each node less than current time
Node, and return the session name corresponding to found respective nodes.
The conversation managing method of the present invention and its system, by way of being combined with Hash table using RBTree, are improve
The efficiency of session detection is not so that detection time is increased by number of sessions is affected.As an example it is assumed that time-out time is little for one
When, and detection in each minute once time-out, then the time that present invention detection time-out uses is the 1/60 of traversal method detection time
（I.e. overtime detection cycle/time-out time, the degree that the time is saved is related to detection cycle）, substantially increase the speed of time-out detection
Degree and efficiency.The conversation managing method of the present invention and system are simultaneously achieved the modification to time-out time, meet application layer
Real needs.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention, for the skill of this area
For art personnel, the present invention can have various modifications and variations.All within the spirit and principles in the present invention, made any repair
Change, equivalent, improvement etc., should be included within scope of the presently claimed invention.
Claims (6)
1. a kind of management method of session is it is characterised in that include：
In advance respectively using the multiple session of RBTree and Hash table organization, wherein, each node of RBTree include keyword and
Nodal value, described keyword is time-out time, and described nodal value is the set of all session names corresponding to this time-out time；
Each inclusion key object of Hash table and value object, and described key object is session name, when described value object includes time-out
Between and session information；
With time-out time for the corresponding session name of keyword search in described RBTree, and with session in described Hash table
Entitled key object searches corresponding time-out time and session information；
Wherein, when inserting session, follow the steps below：
In described Hash table：
Session name according to being inserted into session calculates corresponding cryptographic Hash, and is calculated in described Kazakhstan according to the cryptographic Hash being calculated
Relevant position in uncommon table；
Insert the mapping of session name and time-out time, session information in described relevant position；
In described RBTree：
Time-out time according to being inserted into session searches the corresponding node of described time-out time；
If finding corresponding node, session name corresponding with described time-out time in described Hash table is added to described
In the nodal value of respective nodes；
If searching less than corresponding node, node is created for keyword with described time-out time, and by described Hash table with
The corresponding session name of described time-out time is added in the nodal value of created node.
2. session according to claim 1 management method it is characterised in that modification special session time-out time
When, follow the steps below：
According to the session name of described special session, in described Hash table, search corresponding time-out time and session information, and
Time-out time corresponding to special session title described in modification Hash table；
With the time-out time that found for the corresponding node of keyword search in described RBTree, and in the section being found
Described special session title is deleted in the nodal value of point；
With amended time-out time for the corresponding node of keyword search in described RBTree, and finding corresponding section
During point, described special session title is added in the nodal value of this node；When searching less than corresponding node, repaiied with described
Time-out time after changing creates node for keyword, and described special session title is added to the nodal value of created node
In.
3. the management method of session according to claim 1 is it is characterised in that in time-out detection, follow the steps below：
Find the node that time-out time is less than current time successively in described RBTree, and return and searched from each node
The session name corresponding to respective nodes arriving.
4. a kind of management system of session is it is characterised in that include：
Memory module, in advance respectively using the multiple session of RBTree and Hash table organization, wherein, each node of RBTree
Including keyword and nodal value, described keyword is time-out time, and described nodal value is all meetings corresponding to this time-out time
The set of words title；Each inclusion key object of Hash table and value object, and described key object is session name, described value is right
As including time-out time and session information；
Searching modul, in described RBTree with time-out time for the corresponding session name of keyword search, and described
In Hash table, corresponding time-out time and session information are searched for key object with session name；
For inserting the insertion module of session, and described insertion module includes：
First insertion unit, for, in described Hash table, the session name according to being inserted into session calculates corresponding cryptographic Hash,
And the relevant position being calculated in described Hash table according to the cryptographic Hash that calculated；And, insert session in described relevant position
Title and time-out time, the mapping of session information；
Second insertion unit, for, in described RBTree, the time-out time according to being inserted into session searches corresponding node；If
Find corresponding node, then session name corresponding to described time-out time in described Hash table is added to described corresponding section
In the nodal value of point；If searching less than corresponding node, node is created for keyword with described time-out time, and by described Kazakhstan
In uncommon table, session name corresponding with described time-out time is added in the nodal value of created node.
5. the management system of session according to claim 4 is it is characterised in that also include for changing the super of special session
When the time modified module, and described modified module includes：
First modification unit, for the session name according to described special session, searches time-out accordingly in described Hash table
Time and session information, and the time-out time corresponding to special session title described in described Hash table is revised as new time-out
Time；
Second modification unit, for being saved accordingly with the time-out time being found for keyword search in described RBTree
Point, and delete described special session title in the nodal value of the node being found；Then, to change in described RBTree
Time-out time afterwards is the corresponding node of keyword search, if finding corresponding node, described special session title is added
It is added in the nodal value of this node；If searching less than corresponding node, created with described amended time-out time for keyword
Build node, and described special session title is added in the nodal value of created node.
6. the management system of session according to claim 4 is it is characterised in that also include：
Overtime detection module, is less than current time for finding time-out time in described RBTree successively from each node
Node, and return the session name corresponding to found respective nodes.
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| CN201210514591.5A CN103856462B (en) | 2012-12-05 | 2012-12-05 | Method and system for managing sessions |
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| CN105117471A (en) * | 2015-08-31 | 2015-12-02 | 北京金山安全软件有限公司 | Read-write operation method and device |
| CN109117432A (en) * | 2017-06-22 | 2019-01-01 | 北京京东尚科信息技术有限公司 | A kind of method and device obtaining data |
| CN107341243A (en) * | 2017-07-06 | 2017-11-10 | 携程旅游网络技术（上海）有限公司 | Billing cycle generation method and system based on section tree finding algorithm |
| CN107679148A (en) * | 2017-09-26 | 2018-02-09 | 郑州云海信息技术有限公司 | Session lookup method, device and the equipment of a kind of distributed file system |
| CN107911443B (en) * | 2017-11-14 | 2021-01-26 | 北京星选科技有限公司 | Session information processing method, device, server and readable storage medium |
| CN108173930A (en) * | 2017-12-26 | 2018-06-15 | 郑州云海信息技术有限公司 | A kind of page time-out configuration warning device and method |
| CN109451020B (en) * | 2018-11-06 | 2021-07-06 | 深圳前海微众银行股份有限公司 | Timeout management method, timeout management device, and computer-readable storage medium |
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| CN101089810A (en) * | 2006-06-13 | 2007-12-19 | 上海海加网络科技有限公司 | Session cache method based on binary balance tree |
| CN101854603A (en) * | 2010-06-09 | 2010-10-06 | 中兴通讯股份有限公司 | Method and device for processing multimedia message service |
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| GB2418037B (en) * | 2004-09-09 | 2007-02-28 | Surfcontrol Plc | System, method and apparatus for use in monitoring or controlling internet access |
| US20080201118A1 (en) * | 2007-02-16 | 2008-08-21 | Fan Luo | Modeling a web page on top of HTML elements level by encapsulating the details of HTML elements in a component, building a web page, a website and website syndication on browser-based user interface |
| CN101795230B (en) * | 2010-02-23 | 2012-05-23 | 西安交通大学 | Network flow recovery method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101089810A (en) * | 2006-06-13 | 2007-12-19 | 上海海加网络科技有限公司 | Session cache method based on binary balance tree |
| CN101854603A (en) * | 2010-06-09 | 2010-10-06 | 中兴通讯股份有限公司 | Method and device for processing multimedia message service |
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