CN105337931A - Number limit control method and distributed number limit control system - Google Patents
Number limit control method and distributed number limit control system Download PDFInfo
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- CN105337931A CN105337931A CN201410306383.5A CN201410306383A CN105337931A CN 105337931 A CN105337931 A CN 105337931A CN 201410306383 A CN201410306383 A CN 201410306383A CN 105337931 A CN105337931 A CN 105337931A
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Abstract
The invention discloses a number limit control method and distributed number limit control system. The number limit control method includes the following steps that: an application server receives a business service request transmitted by a client end and transmits a number limit control request to a number limit control server; if the business service request is not an initially-transmitted request and in a validity period, the number limit control server judges whether the number of the transmitting of the business service request exceeds a maximum number limit, if the number of the transmitting of the business service request does not exceed the maximum number limit, an instruction indicating that the number of the transmitting of the business service request does not exceed the maximum number limit is returned to the application server, if the number of the transmitting of the business service request exceeds the maximum number limit, an instruction indicating that the number of the transmitting of the business service request exceeds the maximum number limit is returned to the application server; and the application server performs business processing on the business service request and returns processing results to the client end or returns an error information response to the client end. With the number limit control method and distributed number limit control system provided by the technical scheme of the invention, user number limit of the client end can be accurately controlled. The number limit control method is suitable for a distributed system which uniformly receives client end requests and a distributed system which randomly receives client end requests.
Description
Technical field
The present invention relates to Internet technical field, particularly a kind of limit control method and distributed limit control system.
Background technology
Along with popularizing of the Internet, online crowd get more and more, and this reliability to the Internet, dilatancy propose very high requirement.Distributed system is owing to employing parallel processing technique; process computing capability is strong; and operating load is dispersed on multiple stage machine; unit fault only can make a machine down; therefore there is very high reliability; and distributed system allows to expand gradually when demand growth, because it has above-mentioned advantage, and is widely used in internet site and other application systems.
Be fail safe or the consideration of experience reasonability in internet site and many application systems, often can control the behavior of user.Such as: weather forecast website captures self weather sources data for preventing other websites, can do request number of times per minute, per hour restriction to source ip, once fixing source ip request number of times exceedes system settings, this ip of system mask asks again.Log in QQ for another example, the new mail arriving reminding after the instant software of the communications such as Fetion, control if do not do limit to interior reception number of mail per hour, new mail arriving reminding will reduce user's health check-up greatly so frequently.Based on above consideration, need user's limit under distributed system is controlled.
Under existing distributed system, limit control method is, if service end will be done 400 limits per minute to the request of client and control, so the limit of 400 times control number of times is generally evenly assigned on each server by prior art, and namely the limit per minute of every station server controls to be 100 times.
Realizing in process of the present invention, inventor finds the limit control method of prior art, and at least there are the following problems:
During arbitrary server in client random access distributed system, the reception request number of times of a certain server can be caused to be greater than the reception request number of times of other servers, thus cause limit to control not problem accurately.
Summary of the invention
The invention provides a kind of limit control method and distributed limit control system, there is limit during to solve the arbitrary server in prior art in client random access distributed system and control not problem accurately.
For achieving the above object, the embodiment of the present invention adopts following technical scheme:
On the one hand, the embodiment of the present invention provides a kind of limit control method, and described method comprises:
Application server receives the business service request that client sends, and sends limit control request to limit Control Server;
Described limit Control Server controls request according to described limit and judges that whether described business service request is the request of business service first of described client;
If business service request first, described limit Control Server returns instruction not in excess of the quota to described application server;
If not business service request first, described limit Control Server judges described business service request further whether within valid expiration date, if described business service request is not within valid expiration date, then returns instruction not in excess of the quota to described application server; If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server, if exceed maximum limit specified number, return instruction in excess of the quota to described application server;
When receiving instruction not in excess of the quota, described application server carries out Business Processing according to described business service request, returns result to described client; When receiving instruction in excess of the quota, described application server returns error message response to described client.
On the other hand, the embodiment of the present invention provides a kind of distributed limit control system, comprises limit Control Server and at least two methods server;
Described application server, for receiving the business service request that client sends, sending limit to limit Control Server and controlling request; When receiving instruction not in excess of the quota, carrying out Business Processing according to described business service request, returning result to described client; When receiving instruction in excess of the quota, return error message response to described client;
For controlling request according to described limit, described limit Control Server, judges that whether described business service request is the request of business service first of described client; If business service request first, return instruction not in excess of the quota to described application server; If not business service request first, judge further described business service request whether within valid expiration date, if described business service request is not within valid expiration date, then return instruction not in excess of the quota extremely described application server; If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server, if exceed maximum limit specified number, return instruction in excess of the quota to described application server.
Alternatively, described limit Control Server is independently arranged, or described limit Control Server is arranged on arbitrary application server.
The beneficial effect of the embodiment of the present invention is: limit control method provided by the invention and distributed limit control system, when the arbitrary application server in distributed system receives the business service request of client, request is controlled by sending limit to limit Control Server, judge whether the current request number of times of described client exceedes top limit by described limit Control Server is unified, and return number instruction in excess of the quota or number instruction not in excess of the quota to application server, the whether instruction in excess of the quota that application server returns according to limit Control Server, to the business service request of client or carry out Business Processing and return result or return error message response to described client, thus reach the object of client user's limit being carried out to precisely control.The embodiment of the present invention is all applicable with the distributed system receiving client-requested at random to evenly receiving client-requested.
Accompanying drawing explanation
A kind of limit control method flow chart that Fig. 1 provides for the embodiment of the present invention;
The another kind of limit control method flow chart that Fig. 2 provides for the embodiment of the present invention;
Fig. 3 is the main quota data schematic diagram that the embodiment of the present invention carries out in limit control procedure;
The one distributed limit Control system architecture figure that Fig. 4 provides for the embodiment of the present invention;
The method flow diagram of limit control is carried out under a kind of distributed limit control system that Fig. 5 provides for the embodiment of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
The embodiment of the present invention provides a kind of limit control method, is applied in distributed system, and as shown in Figure 1, be a kind of limit control method flow chart that the embodiment of the present invention provides, described method comprises:
Step S120, application server receives the business service request that client sends, and sends limit control request to limit Control Server.
Generally have multiple application server in distributed system, client sends business service request to arbitrary application server, and the flow process that wherein arbitrary application server performs is all the same; After this arbitrary application server receives the business service request of client transmission, generate limit according to described business service request and control request.
Step S121, limit Control Server controls request according to described limit and judges that whether described business service request is the request of business service first of described client.
Step S122, if business service request first, then returns instruction not in excess of the quota to described application server.
Step S123, if not business service request first, judges further described business service request whether within valid expiration date.
Step S124, if described business service request is not within valid expiration date, then returns instruction not in excess of the quota to described application server.
Step S125, if described business service request is within valid expiration date, then judges whether the request number of times of described client exceedes maximum limit specified number further.
Step S126, if do not exceed maximum limit specified number, returns instruction not in excess of the quota to described application server.
Step S127, if exceed maximum limit specified number, returns instruction in excess of the quota to described application server.
Step S128, when described application server receives instruction not in excess of the quota, carries out Business Processing according to described business service request, returns result to described client.
Step S129, when described application server receives instruction in excess of the quota, returns error message response to described client.
In another embodiment, the identification information of client can be carried in the business service request that client sends, just specifically introduce limit control method flow process provided by the invention for the identification information carrying this client in business service request below, with reference to shown in accompanying drawing 2.
Step S210, application server receives the business service request that client sends, and obtains the identification information of this client from described business service request.
Step S211, described application server generates limit according to the identification information of this client and controls request, sends this limit control request to limit Control Server.
Wherein, described limit controls the identification information carrying this client in request.
Step S212, described limit Control Server controls from described limit the identification information obtaining this client request, judges the identification information that whether there is described client in the client identification self stored, and if there is no, performs step S213; If existed, perform step S214.
In the present embodiment, if there is not the identification information of described client in the client identification of limit Control Server self storage, then judge it is business service request first;
If there is the identification information of described client in the client identification that limit Control Server self stores, then judge it is not business service request first.
Step S213, limit Control Server preserves the identification information of described client in client identification, and request number of times is set to 1, current time is set to first time request time, returns instruction not in excess of the quota to described application server.
Step S214, described limit Control Server judges described business service request further whether within valid expiration date, if not within valid expiration date, performs step S215; If within the limited time limit, perform step S216.
In the present embodiment, described limit Control Server judges whether described business service request comprises within the limited time limit:
Limit Control Server judges that current time deducts the time difference that the first time request time that prestores obtains and whether is less than or equal to default time span;
If described time difference is less than or equal to described default time span, then think that described business service request is within valid expiration date; If described time difference is greater than described default time span, then think that described business service request is not within valid expiration date.
In addition, be not limited in the present embodiment and adopt said method to judge described business service request whether within valid expiration date, also can judge time of reception corresponding to described business service request whether in preset time range etc., not repeat them here.
Step S215, request number of times is set to 1 by described limit Control Server, described current time is set to first time request time, and returns instruction not in excess of the quota to described application server.
Step S216, described limit Control Server judges whether the request number of times of described client exceedes maximum limit specified number more further, if do not exceed, performs step S217; If exceed, perform step S218.
In the present embodiment, request number of times is added the current request number of times obtaining described client after 1 by described limit Control Server;
Judge whether the current request number of times of described client is less than or equal to maximum limit specified number, if be less than or equal to maximum limit specified number, perform step S217; If the request number of times of described client is greater than maximum limit specified number, perform step S218.
Step S217, described limit Control Server returns instruction not in excess of the quota to described application server.
Step S218, described limit Control Server returns instruction in excess of the quota to described application server.
Step S219, when described application server receives instruction not in excess of the quota, carries out Business Processing according to described business service request, returns result to described client.
Step S220, when described application server receives instruction in excess of the quota, returns error message response to described client.
It should be noted that, the embodiment of the present invention comprises client identification, time span, maximum limit specified number carrying out the main quota data that limit control procedure relates to, wherein,
Described client identification is not limited to ip address and user Userid, can expand according to business, comprises cell-phone number, user name, and all modes that can identify client are all within scope.
Described time difference; be not limited to the time span in units of a minute Min, hour Hour, sky Day; also can Further Division; can increase a second Second, all week, moon Month, year Year are the time span of unit, the mode of all identified time length is all within scope.
Described numerical example is to greatest extent as can be 100,500,1000,2000 etc., and this is according to fail safe in distributed system or experience and rationality consideration is determined.
Above-mentioned client identification, time span and maximum limit specified number are carried out respective combination, and compound mode example as shown in Figure 3.Be appreciated that above-mentioned main quota data can expand arbitrarily, such as, can increase Enable whether work for identifying this journey limit.
Based on the inventive concept identical with said method embodiment, as shown in Figure 4, the distributed limit control system 400 of the one that the embodiment of the present invention provides, comprises limit Control Server 410 and at least two methods server 420; Wherein,
Described application server 420, for receiving the business service request that client sends, sending limit to limit Control Server 410 and controlling request; When receiving instruction not in excess of the quota, carrying out Business Processing according to described business service request, returning result to described client; When receiving instruction in excess of the quota, return error message response to described client;
For controlling request according to described limit, described limit Control Server 410, judges that whether described business service request is the request of business service first of described client; If business service request first, return instruction not in excess of the quota to described application server 420; If not business service request first, judge further described business service request whether within valid expiration date, if described business service request is not within valid expiration date, then return instruction not in excess of the quota extremely described application server 420; If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server 220, if exceed maximum limit specified number, return instruction in excess of the quota to described application server 420.
In one embodiment of the invention, above-mentioned application server 420 comprises:
First processing module, for receiving the business service request that client sends, from described business service request, obtaining the identification information of described client, sending limit to limit Control Server 410 and controlling request, wherein, described limit controls the identification information carrying described client in request.
Accordingly, in yet another embodiment of the present invention, the limit Control Server 410 of the embodiment of the present invention comprises:
Acquisition module, for controlling from described limit the identification information obtaining described client in request.
First judge module, for judging the identification information that whether there is described client in the client identification that self stores; If there is no then judge it is business service request first, if existed, judge it is not business service request first.
Again in an execution mode, described limit Control Server 410 comprises further:
Preservation arranges module, if for the identification information that there is not described client in the client identification that self stores, the identification information of described client is preserved in client identification, request number of times is set to 1, current time is set to first time request time, returns instruction not in excess of the quota to described application server.
Preferably, then in an execution mode, described limit Control Server 410 also comprises:
Second judge module, for judging that current time deducts the time difference that the first time request time that prestores obtains and whether is less than or equal to default time span, if so, then judge that described business service request is within valid expiration date, if not, then judge that described business service request is not within valid expiration date.
Further, described limit Control Server also comprises:
Second processing module, if be greater than described default time span for described time difference, is set to 1 by request number of times, described current time is set to first time request time, returns instruction not in excess of the quota to described application server;
3rd processing module, if be less than or equal to described default time span for described time difference, adds the current request number of times obtaining described client after 1 by request number of times; Judge whether the current request number of times of described client is less than or equal to maximum limit specified number, if be less than or equal to maximum limit specified number, return instruction not in excess of the quota to described application server 420; If the request number of times of described client is greater than maximum limit specified number, return instruction in excess of the quota to described application server 420.
In order to clearer explanation technical scheme of the present invention, below in conjunction with a kind of concrete application scenarios, limit control method provided by the invention and distributed limit control system are described in detail.
Under this application scene, as shown in Figure 5, the distributed limit control system of the one that the embodiment of the present invention provides comprises four application servers, application server A, application server B, application server C and application server D respectively, the limit Control Server of an independent setting and a client, described client identification ip address represents, time span is 1 minute, and maximum limit specified number is 100.
Based on above-mentioned application scenarios, described client sends service request to above-mentioned arbitrary application server, application server obtains the ip address of this client from service request, and sending limit control request to limit Control Server, described limit controls the ip address that request carries described client; Judge whether the current request times N of described client has exceeded maximum limit specified number 100 by limit Control Server according to the ip address of described client is unified.Clear for ease of illustrating, we distinguish application server, and composition graphs 5 is described as follows.
The first situation is:
Client sends business service request to application server A, and application server A obtains the ip address of this client from described business service request;
Application server A sends limit to limit Control Server and controls request, and described limit controls the ip address that request carries described client;
First limit Control Server judges whether the ip address of described client exists,
If there is no, limit Control Server preserves the identification information of described client in client identification, and request number of times is set to 1, and record current time is first time request time simultaneously, and returns instruction not in excess of the quota to application server A;
Application server A, according to the instruction not in excess of the quota received, carries out Business Processing to the business service request of client, and returns result to client.
Second case is:
Client sends business service request to application server B, and application server B obtains the ip address of this client from described business service request;
Application server B sends limit to limit Control Server and controls request, and described limit controls the ip address that request carries described client;
First limit Control Server judges whether the ip address of described client exists,
If existed, current time is deducted the time difference that the first time request time that prestores obtains and within 1 minute, compares with the time span preset,
If be greater than default time span 1 minute, request number of times N is set to 1, record current time is first time request time simultaneously, and returns instruction not in excess of the quota to application server B;
Application server B, according to the instruction not in excess of the quota received, carries out Business Processing to the business service request of client, and returns result to client.
The third situation is:
Client sends business service request to application server C, and application server C obtains the ip address of this client from described business service request;
Application server C sends limit to limit Control Server and controls request, and described limit controls the ip address that request carries described client;
First limit Control Server judges whether the ip address of described client exists,
If existed, current time is deducted the time difference that the first time request time that prestores obtains and within 1 minute, compares with the time span preset,
If described time difference is less than or equal to default time span 1 minute, compare with the maximum limit specified number 100 preset after request number of times N being added 1,
If be less than or equal to maximum limit 100, return instruction not in excess of the quota to application server C;
Application server C, according to the instruction not in excess of the quota received, carries out Business Processing to the service request of client, and returns result to client.
4th kind of situation is:
Client sends business service request to application server D, and application server D obtains the ip address of this client from described business service request;
Application server D sends limit to limit Control Server and controls request, and described limit controls the ip address that request carries described client;
First limit Control Server judges whether the ip address of described client exists,
If existed, current time is deducted the time difference that the first time request time that prestores obtains and within 1 minute, compares with the time span preset,
If described time difference is less than or equal to default time span 1 minute, compare with the maximum limit specified number 100 preset after request number of times N being added 1,
If be greater than maximum limit specified number 100, return number instruction in excess of the quota to application server D;
Application server D, according to the number instruction in excess of the quota received, returns error message response to client.
In sum, limit control method provided by the invention and distributed limit control system, when the arbitrary application server in distributed system receives the business service request of client, request is controlled by sending limit to limit Control Server, judge whether the current request number of times of described client exceedes top limit by described limit Control Server is unified, and return number instruction in excess of the quota or number instruction not in excess of the quota to application server, the whether instruction in excess of the quota that application server returns according to limit Control Server, to the business service request of client or carry out Business Processing and return result or return error message response to described client, thus reach the object of client user's limit being carried out to precisely control.The embodiment of the present invention is all applicable with the distributed system receiving client-requested at random to evenly receiving client-requested.
The foregoing is only preferred embodiment of the present invention, be not intended to limit protection scope of the present invention.All any amendments done within the spirit and principles in the present invention, equivalent replacement, improvement etc., be all included in protection scope of the present invention.
Claims (10)
1. a limit control method, is characterized in that, is applied in distributed system, and described method comprises:
Application server receives the business service request that client sends, and sends limit control request to limit Control Server;
Described limit Control Server controls request according to described limit and judges that whether described business service request is the request of business service first of described client;
If business service request first, described limit Control Server returns instruction not in excess of the quota to described application server;
If not business service request first, described limit Control Server judges described business service request further whether within valid expiration date, if described business service request is not within valid expiration date, then returns instruction not in excess of the quota to described application server; If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server, if exceed maximum limit specified number, return instruction in excess of the quota to described application server;
When receiving instruction not in excess of the quota, described application server carries out Business Processing according to described business service request, returns result to described client; When receiving instruction in excess of the quota, described application server returns error message response to described client.
2. method according to claim 1, is characterized in that,
Described application server receives the business service request that client sends, and sends limit control request comprise to limit Control Server:
Described application server receives the business service request that client sends, the identification information of described client is obtained from described business service request, send limit to limit Control Server and control request, wherein, described limit controls the identification information carrying described client in request;
Accordingly, described limit Control Server controls request according to described limit and judges that whether described business service request is that the request of business service first of described client comprises:
Described limit Control Server controls from described limit the identification information obtaining described client request;
Described limit Control Server judges the identification information that whether there is described client in the client identification self stored; If there is no then judge it is business service request first, if existed, judge it is not business service request first.
3. method according to claim 2, is characterized in that, described if business service request first, then return instruction not in excess of the quota to described application server and comprise:
If there is not the identification information of described client in the client identification that described limit Control Server self stores, the identification information of described client is preserved in client identification, request number of times is set to 1, current time is set to first time request time, returns instruction not in excess of the quota to described application server.
4. method according to claim 2, is characterized in that, described limit Control Server judges whether described business service request comprises within valid expiration date further:
Described limit Control Server judges that current time deducts the time difference that the first time request time that prestores obtains and whether is less than or equal to default time span; If so, then judge that described business service request is within valid expiration date, if not, then judge that described business service request is not within valid expiration date.
5. method according to claim 4, is characterized in that, if described business service request is not within valid expiration date, then returns instruction not in excess of the quota to described application server and comprises:
If described time difference is greater than described default time span, request number of times is set to 1 by described limit Control Server, described current time is set to first time request time, returns instruction not in excess of the quota to described application server;
If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server, if exceed maximum limit specified number, return instruction in excess of the quota to described application server and comprise:
If described time difference is less than or equal to described default time span, request number of times is added the current request number of times obtaining described client after 1 by described limit Control Server;
Judge whether the current request number of times of described client is less than or equal to maximum limit specified number, if be less than or equal to maximum limit specified number, return instruction not in excess of the quota to described application server; If the request number of times of described client is greater than maximum limit specified number, return instruction in excess of the quota to described application server.
6. a distributed limit control system, is characterized in that, comprises limit Control Server and at least two methods server; Wherein,
Described application server, for receiving the business service request that client sends, sending limit to limit Control Server and controlling request; When receiving instruction not in excess of the quota, carrying out Business Processing according to described business service request, returning result to described client; When receiving instruction in excess of the quota, return error message response to described client;
For controlling request according to described limit, described limit Control Server, judges that whether described business service request is the request of business service first of described client; If business service request first, return instruction not in excess of the quota to described application server; If not business service request first, judge further described business service request whether within valid expiration date, if described business service request is not within valid expiration date, then return instruction not in excess of the quota extremely described application server; If described business service request is within valid expiration date, judge whether the request number of times of described client exceedes maximum limit specified number further again, if do not exceed maximum limit specified number, return instruction not in excess of the quota to described application server, if exceed maximum limit specified number, return instruction in excess of the quota to described application server.
7. system according to claim 6, is characterized in that, described application server comprises:
First processing module, for receiving the business service request that client sends, from described business service request, obtaining the identification information of described client, sending limit to limit Control Server and controlling request, wherein, described limit controls the identification information carrying described client in request;
Accordingly, described limit Control Server comprises:
Acquisition module, for controlling from described limit the identification information obtaining described client in request;
First judge module, for judging the identification information that whether there is described client in the client identification that self stores; If there is no then judge it is business service request first, if existed, judge it is not business service request first.
8. system according to claim 7, is characterized in that, described limit Control Server also comprises:
Preservation arranges module, if for the identification information that there is not described client in the client identification that self stores, the identification information of described client is preserved in client identification, request number of times is set to 1, current time is set to first time request time, returns instruction not in excess of the quota to described application server.
9. system according to claim 7, is characterized in that, described limit Control Server also comprises:
Second judge module, for judging that current time deducts the time difference that the first time request time that prestores obtains and whether is less than or equal to default time span, if so, then judge that described business service request is within valid expiration date, if not, then judge that described business service request is not within valid expiration date;
Second processing module, if be greater than described default time span for described time difference, is set to 1 by request number of times, described current time is set to first time request time, returns instruction not in excess of the quota to described application server;
3rd processing module, if be less than or equal to described default time span for described time difference, adds the current request number of times obtaining described client after 1 by request number of times; Judge whether the current request number of times of described client is less than or equal to maximum limit specified number, if be less than or equal to maximum limit specified number, return instruction not in excess of the quota to described application server; If the request number of times of described client is greater than maximum limit specified number, return instruction in excess of the quota to described application server.
10. the system according to any one of claim 6-9, is characterized in that,
Described limit Control Server is independently arranged, or described limit Control Server is arranged on arbitrary application server.
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| CN107819743A (en) * | 2017-10-24 | 2018-03-20 | 中国平安财产保险股份有限公司 | Resource access control method and terminal device |
| CN108880923A (en) * | 2017-05-16 | 2018-11-23 | 北京京东尚科信息技术有限公司 | The method and apparatus that policer operation applied to application server is requested |
| CN108900640A (en) * | 2018-08-13 | 2018-11-27 | 平安普惠企业管理有限公司 | Node calls link generation method, device, computer equipment and storage medium |
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| CN107819743A (en) * | 2017-10-24 | 2018-03-20 | 中国平安财产保险股份有限公司 | Resource access control method and terminal device |
| CN108900640A (en) * | 2018-08-13 | 2018-11-27 | 平安普惠企业管理有限公司 | Node calls link generation method, device, computer equipment and storage medium |
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| CN105337931B (en) | 2019-08-20 |
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