CN103812849A - Local cache updating method and system, client and server - Google Patents
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Abstract
The invention is applied to the field of computer application and provides a local cache updating method and system, a client and a server. The method comprises that the client issues a data updating request to the server, wherein the data updating request comprises the timestamps of every classified data; when determining that the timestamps of the classified data included by the data updating request are different from those of the corresponding classified data stored in the server, the server transmits classified data with the different timestamps and the timestamps of the classified data; the client updates the corresponding classified data of local caches according to the classified data transmitted by the server and updates the timestamps of the updated classified data into the timestamps transmitted by the server. By dividing data into a plurality of classifications, during data updating, the server simply needs to transmit changed classified data to the client, so that the pressure of network transmission can be reduced, and the quantity of data to be processed by the client can be reduced greatly, the data updating efficiency can be improved, and the problem of repeated data updating can be avoided.
Description
Technical field
The invention belongs to computer application field, relate in particular to a kind of local cache update method, system, client and server.
Background technology
Along with the development of network, internet data transmission is more and more extensive, and the Data Update of software also substantially relies on from network downloading data and realizes.Upgrade local data by network now and mainly contain following two kinds of modes:
One, server according to client send Data Update request, issue data to client, client deletion original data cached after, the data of receiving are all re-write.This mode reliability in the time carrying out is poor, and the data that write if extremely can cause as occurred when the new data are more imperfect, and software cannot normally use.
Its two, server issues data after client, client compares received data and legacy data one by one, only different data is upgraded.Though reliability is higher when this mode is carried out, but, because needs compare one by one to data, upgrade efficiency too low.
Meanwhile, all there is the problem that Data duplication upgrades in above-mentioned two kinds of modes.As when data on server compared with local cache data indifference or difference hour, server still sends the total data on network to client software, has not only produced unnecessary network traffics, also expends the time of Data Update.
Summary of the invention
The object of the embodiment of the present invention is to provide a kind of local cache update method, system, client and server, is intended to solve the problem that all exists Data duplication to upgrade due to existing network data update mode.
The embodiment of the present invention is achieved in that a kind of local cache update method, and described method comprises:
User end to server is initiated Data Update request, and described Data Update request comprises the timestamp of each grouped data;
Server, in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, stabs the timestamp of different grouped data and described grouped data to client transmitting time;
The grouped data that client sends according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
A kind of local cache update method, described method comprises:
User end to server is initiated Data Update request, and described Data Update request comprises the timestamp of each grouped data;
Client server in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, the grouped data that the timestamp that returns is different and the timestamp of described grouped data;
The grouped data that client is returned according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
A kind of local cache update method, described method comprises:
Server receives the Data Update request that client is initiated, and described Data Update request comprises the timestamp of each grouped data;
Server is in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, stab to client transmitting time after the timestamp of different grouped datas and described grouped data, make the grouped data that client sends according to server upgrade the corresponding grouped data of local cache, and to make client be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
Another object of the embodiment of the present invention is to provide a kind of local cache to upgrade system, and described system comprises client and server, wherein:
Client comprises:
Data Update request initiating cell, for initiating Data Update request to server, described Data Update request comprises the timestamp of each grouped data;
Data updating unit, the grouped data sending for server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal;
Described server comprises:
Timestamp comparing unit, for the each grouped data timestamp timestamp corresponding with server end relatively receiving one by one;
More new data returns to unit, when different for the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request, stab the timestamp of different grouped data and described grouped data to client transmitting time.
A kind of client, described client comprises:
Data Update request initiating cell, for initiating Data Update request to server, described Data Update request comprises the timestamp of each grouped data;
Data updating unit, when the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request for reception server is different, the grouped data that the timestamp that returns is different and the timestamp of described grouped data, and the corresponding grouped data of the grouped data of returning according to server renewal local cache, and be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
A kind of server, described server comprises:
Timestamp comparing unit, for receiving after the Data Update request of client initiation, the timestamp of the each grouped data comprising according to described Data Update request is more each grouped data timestamp timestamp corresponding with server end one by one;
More new data returns to unit, when different for the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request, stab the timestamp of different grouped data and described grouped data to client transmitting time, make the grouped data that client sends according to server upgrade the corresponding grouped data of local cache, and to make client be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
In embodiments of the present invention, by data being divided into after some classes, when Data Update, server only need send to client by the data of vicissitudinous classification, and total data need not be sent to client, thereby not only reduce the pressure of Internet Transmission, also make client need data to be processed to greatly reduce, improved the efficiency that client data upgrades, and the problem of having avoided Data duplication to upgrade.
Accompanying drawing explanation
Fig. 1 is the local cache update method flow chart that first embodiment of the invention provides;
Fig. 2 is the local cache update method flow chart that second embodiment of the invention provides;
Fig. 3 is the local cache update method flow chart that third embodiment of the invention provides;
Fig. 4 is the structural representation that the local cache that provides of fourth embodiment of the invention upgrades system.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein, only in order to explain the present invention, is not intended to limit the present invention.
The embodiment of the present invention provides a kind of local cache update method of data Network Based, by data being divided into after some classes, when Data Update, server only need send to client by the data of vicissitudinous classification, and total data need not be sent to client, avoid the problem of upgrading at Data duplication.
For technical solutions according to the invention are described, describe below by specific embodiment.
Embodiment mono-:
The flow chart that is illustrated in figure 1 the local cache update method that first embodiment of the invention provides, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
1. server is divided into data some classes in advance, and adds timestamp according to being respectively each grouped data the update time of each grouped data.
In embodiments of the present invention, server is divided into some classes by all data of software in advance, and is that each grouped data is added timestamp according to each grouped data in the update time of server end.Wherein, data both can be carried out hierarchical classification according to the classification under data, also can adopt the mode of keyword or label to classify, and did not limit at this.
2. client judges in local cache whether have data, have and perform step 4, otherwise execution step 3.
3. in Data Update request, the value initialization of each grouped data timestamp is set to zero.
In embodiments of the present invention, when client judge in local cache countless according to time, in Data Update request, the value initialization of each grouped data timestamp is set to zero.As added data in order to represent the timestamp of each grouped data in Data Update request, when client judge local cache countless according to time all values of this array is all set to zero, when the follow-up value of upgrading again array after receiving the timestamp that server returns.
4. in Data Update request, add the timestamp of each grouped data of client stores.
In embodiments of the present invention, when client judges while having data in local cache, the timestamp of the each grouped data receiving from server of storing in client-cache is added into Data Update request.
5. user end to server is initiated Data Update request.
In embodiments of the present invention, in the time that client need to be upgraded software data, initiate Data Update request to server, the timestamp of each grouped data is carried in Data Update request.Wherein, when client terminal local is during without buffer memory, the timestamp of each grouped data that Data Update request is carried is set to zero.
6. each grouped data timestamp timestamp corresponding with server end that server relatively receives one by one, performs step 7 when the timestamp of each grouped data that comprises when the Data Update request receiving is different with the timestamp of the corresponding grouped data of storing in server.
In embodiments of the present invention, server receives after the Data Update request that client sends out, the timestamp of each grouped data of being carried the one by one timestamp corresponding with server end is compared, perform step 7 if the timestamp of each grouped data that the Data Update request receiving comprises is different from the timestamp of the corresponding grouped data of storing in server, the data of this timestamp corresponding types are not dealt with if the timestamp of each grouped data that the Data Update request receiving comprises is identical with the timestamp of the corresponding grouped data of storing in server, the timestamp of next categorical data and the timestamp of the corresponding grouped data of storing in server that the Data Update request that continues relatively to receive comprises.
7. the timestamp of grouped datas different timestamp in server and grouped data is sent to client.
In embodiments of the present invention, in the time that the timestamp of the Data Update request that server the receives timestamp comprising and the corresponding grouped data of storing in server is different, the corresponding grouped data of storing in server and the timestamp of this grouped data are returned to client.Server is all timestamps of more received Data Update the request all timestamps that comprise and the corresponding grouped data of storing in server successively, all Data Update requests are comprised the timestamp grouped data different from the timestamp of the corresponding grouped data of storing in server and the timestamp of grouped data return to client.
8. the grouped data that client sends according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
In embodiments of the present invention, after the grouped data that client returns to server and the timestamp of grouped data, judge the classification of the grouped data receiving, more received grouped data and the homogeneous data of local cache one by one subsequently, according to the difference of the homogeneous data of received grouped data and local cache, the homogeneous data of local cache is upgraded, and by the timestamp of the local corresponding types data of received update of time stamp.
Wherein, the homogeneous data of more received data and local cache one by one, upgrades the homogeneous data of local cache according to the difference of the homogeneous data of received data and local cache, is specially:
The grouped data that server is sent and the grouped data of local cache compare one by one; If these data that local cache has server to send, upgrade these data; If be not cached with local these data that server sends, these data that server sent are increased in the homogeneous data of local cache; If these data that local cache has server not send, delete these data in local cache.
In embodiments of the present invention, when client is initiated Data Update request to server first, be in client terminal local buffer memory countless according to time, client to be the data of all types and the timestamp of all types data that server sends over, the data in client-cache are also the data after classification server.When subsequent client receives a certain class that server sends or when multi-class data, the grouped data that client just can be stored according to client-cache is judged the type of the data that receive, thereby the homogeneous data of received data and local cache is relatively come the homogeneous data of local cache to upgrade one by one.
In embodiments of the present invention, by data being divided into after some classes, when Data Update, server only need send to client by the data of vicissitudinous classification, and total data need not be sent to client, thereby not only reduce the pressure of Internet Transmission, also make client need data to be processed to greatly reduce, improved the efficiency that client data upgrades, and avoided the problem of upgrading at Data duplication.
Embodiment bis-:
The flow chart that is illustrated in figure 2 the local cache update method of the data Network Based that second embodiment of the invention provides, the executive agent of the present embodiment flow process is the client described in Fig. 1, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
In step S201, user end to server is initiated Data Update request, and described Data Update request comprises the timestamp of each grouped data;
Preferably, when in client terminal local buffer memory countless according to time, the timestamp of each grouped data in described Data Update request is set to zero.
In step S202, client server in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, the grouped data that the timestamp that returns is different and the timestamp of described grouped data;
In step S203, the grouped data that client is returned according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
In embodiments of the present invention, the corresponding grouped data that the grouped data that client is returned according to server is upgraded local cache is specially: the grouped data that server is returned and the grouped data of local cache compare one by one; If these data that local cache has server to send, upgrade these data; If be not cached with local these data that server sends, these data that server sent are increased to the homogeneous data in local cache.
Embodiment tri-:
The flow chart that is illustrated in figure 3 the local cache update method of the data Network Based that third embodiment of the invention provides, the executive agent of the present embodiment flow process is the server described in Fig. 1, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.
In step S301, server is divided into data some classes in advance, and respectively according to being each grouped data interpolation timestamp the update time of each grouped data;
In step S302, server receives the Data Update request that client is initiated, and described Data Update request comprises the timestamp of each grouped data;
In step S303, server is in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, stab to client transmitting time after the timestamp of different grouped datas and described grouped data, make the grouped data that client sends according to server upgrade the corresponding grouped data of local cache, and to make client be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
Embodiment tetra-:
The local cache that Fig. 4 provides for fourth embodiment of the invention upgrades the structural representation of system, for convenience of explanation, only shows the part relevant to the embodiment of the present invention.Wherein:
The local cache renewal system of these data Network Based comprises client 1 and server 2, and wherein, client 1 comprises: Data Update request initiating cell 11 and data updating unit 12; Server 2 comprises: Data classification unit 21, timestamp comparing unit 22 and more new data return to unit 23.
For client 1:
Data Update request initiating cell 11, for initiating Data Update request to server, described Data Update request comprises the timestamp of each grouped data.
Preferably, described Data Update request initiating cell 11 comprises three subelements, is respectively:
Buffer memory judging unit 111, for judging whether local cache has data.
The first Data Update request initiating cell 112 in the time that local cache has data, is added the timestamp of each grouped data of client stores in Data Update request, and sends Data Update request to server.
The second Data Update request initiating cell 113, for when local cache countless according to time, in Data Update request, the value initialization of each grouped data timestamp is set to zero, and sends Data Update request to server.
Preferably, described data updating unit 12 comprises two subelements, is respectively:
Data Update subelement 121, for the grouped data of server transmission and the grouped data of local cache are compared one by one, if these data that local cache has server to send, upgrade these data, if be not cached with local these data that server sends, these data that server sent are increased to local cache.
Update of time stamp unit 122, for by the update of time stamp of the grouped data of renewal being the timestamp that server sends.
For server 2:
More new data returns to unit 23, when different for the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request, stab the timestamp of different grouped data and described grouped data to client transmitting time.
In embodiments of the present invention, by data being divided into after some classes, when Data Update, server only need send to client by the data of vicissitudinous classification, and total data need not be sent to client, thereby not only reduce the pressure of Internet Transmission, also make client need data to be processed to greatly reduce, improved the efficiency that client data upgrades, and avoided the problem of upgrading at Data duplication.
One of ordinary skill in the art will appreciate that, the all or part of step realizing in above-described embodiment method is can carry out the hardware that instruction is relevant by program to complete, described program can be being stored in a computer read/write memory medium, described storage medium, as ROM/RAM, disk, CD etc.
The foregoing is only preferred embodiment of the present invention, not in order to limit the present invention, all any modifications of doing within the spirit and principles in the present invention, be equal to and replace and improvement etc., within all should being included in protection scope of the present invention.
Claims (18)
1. a local cache update method, is characterized in that, described method comprises:
User end to server is initiated Data Update request, and described Data Update request comprises the timestamp of each grouped data;
Server, in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, stabs the timestamp of different grouped data and described grouped data to client transmitting time;
The grouped data that client sends according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
2. the method for claim 1, is characterized in that, when in client terminal local buffer memory countless according to time, the timestamp of each grouped data in described Data Update request is set to zero.
3. method as claimed in claim 1 or 2, is characterized in that, before described step from Data Update request to server that initiate, described method also comprises:
Server is divided into data some classes in advance, and respectively according to being each grouped data interpolation timestamp the update time of each grouped data.
4. the method for claim 1, is characterized in that, the corresponding grouped data that the grouped data that described client sends according to server is upgraded local cache comprises:
The grouped data that server is sent and the grouped data of local cache compare one by one;
If these data that local cache has server to send, upgrade these data;
If be not cached with local these data that server sends, these data that server sent are increased to the homogeneous data in local cache.
5. a local cache update method, is characterized in that, described method comprises:
User end to server is initiated Data Update request, and described Data Update request comprises the timestamp of each grouped data;
Client server in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, the grouped data that the timestamp that returns is different and the timestamp of described grouped data;
The grouped data that client is returned according to server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal.
6. method as claimed in claim 5, is characterized in that, when in client terminal local buffer memory countless according to time, the timestamp of each grouped data in described Data Update request is set to zero.
7. method as claimed in claim 5, is characterized in that, the corresponding grouped data that the grouped data that described client is returned according to server is upgraded local cache comprises:
The grouped data that server is returned and the grouped data of local cache compare one by one;
If these data that local cache has server to send, upgrade these data;
If be not cached with local these data that server sends, these data that server sent are increased to the homogeneous data in local cache.
8. a local cache update method, is characterized in that, described method comprises:
Server receives the Data Update request that client is initiated, and described Data Update request comprises the timestamp of each grouped data;
Server is in the time judging that the timestamp of grouped data that comprises of described Data Update request is different with the timestamp of the corresponding grouped data of storing in server, stab to client transmitting time after the timestamp of different grouped datas and described grouped data, make the grouped data that client sends according to server upgrade the corresponding grouped data of local cache, and to make client be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
9. method as claimed in claim 8, it is characterized in that, before the Data Update request that described server reception client is initiated, also comprise: server is divided into data some classes in advance, and respectively according to being each grouped data interpolation timestamp the update time of each grouped data.
10. local cache upgrades a system, it is characterized in that, described system comprises client and server, wherein:
Client comprises:
Data Update request initiating cell, for initiating Data Update request to server, described Data Update request comprises the timestamp of each grouped data;
Data updating unit, the grouped data sending for server is upgraded the corresponding grouped data of local cache, and is the timestamp that server sends by the update of time stamp of the grouped data of renewal;
Described server comprises:
Timestamp comparing unit, for the each grouped data timestamp timestamp corresponding with server end relatively receiving one by one;
More new data returns to unit, when different for the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request, stab the timestamp of different grouped data and described grouped data to client transmitting time.
11. systems as claimed in claim 10, is characterized in that, described Data Update request initiating cell comprises:
Buffer memory judging unit, for judging whether local cache has data;
The first Data Update request initiating cell in the time that local cache has data, is added the timestamp of each grouped data of client stores in Data Update request, and sends Data Update request to server;
The second Data Update request initiating cell, for when local cache countless according to time, in Data Update request, the value initialization of each grouped data timestamp is set to zero, and sends Data Update request to server.
12. systems as claimed in claim 10, is characterized in that, described data updating unit comprises:
Data Update subelement, for the grouped data of server transmission and the grouped data of local cache are compared one by one, if these data that local cache has server to send, upgrade these data, if be not cached with local these data that server sends, these data that server sent are increased to local cache;
Update of time stamp unit, for by the update of time stamp of the grouped data of renewal being the timestamp that server sends.
13. systems as claimed in claim 10, is characterized in that, the server in described system also comprises:
Data classification unit, in advance data being divided into some classes, and respectively according to being each grouped data interpolation timestamp the update time of each grouped data.
14. 1 kinds of clients, is characterized in that, described client comprises:
Data Update request initiating cell, for initiating Data Update request to server, described Data Update request comprises the timestamp of each grouped data;
Data updating unit, when the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request for reception server is different, the grouped data that the timestamp that returns is different and the timestamp of described grouped data, and the corresponding grouped data of the grouped data of returning according to server renewal local cache, and be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
15. clients as claimed in claim 14, is characterized in that, described Data Update request initiating cell comprises:
Buffer memory judging unit, for judging whether local cache has data;
The first Data Update request initiating cell in the time that local cache has data, is added the timestamp of each grouped data of client stores in Data Update request, and sends Data Update request to server;
The second Data Update request initiating cell, for when local cache countless according to time, in Data Update request, the value initialization of each grouped data timestamp is set to zero, and sends Data Update request to server.
16. clients as claimed in claim 14, is characterized in that, described data updating unit comprises:
Data Update subelement, when the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request for reception server is different, after the grouped data that the timestamp that returns is different and the timestamp of described grouped data, the grouped data that server is sent and the grouped data of local cache compare one by one, if these data that local cache has server to send, upgrade these data, be not cached with these data that server sends if local, these data that server sent are increased to local cache,
Update of time stamp unit, for by the update of time stamp of the grouped data of renewal being the timestamp that server sends.
17. 1 kinds of servers, is characterized in that, described server comprises:
Timestamp comparing unit, for receiving after the Data Update request of client initiation, the timestamp of the each grouped data comprising according to described Data Update request is more each grouped data timestamp timestamp corresponding with server end one by one;
More new data returns to unit, when different for the timestamp of the corresponding grouped data of storing from server at the timestamp of judging the grouped data that comprises of described Data Update request, stab the timestamp of different grouped data and described grouped data to client transmitting time, make the grouped data that client sends according to server upgrade the corresponding grouped data of local cache, and to make client be the timestamp that server sends by the update of time stamp of the grouped data of renewal.
18. servers as claimed in claim 17, is characterized in that, described server also comprises:
Data classification unit, in advance data being divided into some classes, and respectively according to being each grouped data interpolation timestamp the update time of each grouped data.
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