CN102238137A - Method, system and device for downloading - Google Patents
Method, system and device for downloading Download PDFInfo
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- CN102238137A CN102238137A CN201010155771XA CN201010155771A CN102238137A CN 102238137 A CN102238137 A CN 102238137A CN 201010155771X A CN201010155771X A CN 201010155771XA CN 201010155771 A CN201010155771 A CN 201010155771A CN 102238137 A CN102238137 A CN 102238137A
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Abstract
The invention discloses a method, a system and a device for downloading. The method comprises the following steps of: receiving a downloading request of a client; obtaining data corresponding to the downloading request, according to the downloading request; and sending the data to the client. With the method, the system and the device provided by the invention, stability, reliability and speed of downloading are all improved.
Description
Technical field
The present invention relates to Internet technical field, relate in particular to a kind of method for down loading, system and device.
Background technology
Along with the file-sharing technology rapid development, file-sharing obtains popularizing widely and using, and the file of a large amount of hot topics or non-hot topic is dispersed throughout Internet.By supporting bittorrent, emule, ftp (FileTransfer Protocol, file transfer protocol (FTP)), http (HyperText Transfer Protocol, HTML (Hypertext Markup Language)) the download software of agreement such as, people can obtain the shared file of distribution on global like a cork.
Resource downloading modes such as traditional http and ftp are C/S (Client/Server, client/server) pattern, it is lower that it sets up cost, but its service ability is fully from service end, need service end to support mass users and mass data to share, cost is high.And network topology adaptability is not strong, and service ability can't cover the network area bad with server connectivity.
P2P (Peer-to-Peer, point-to-point) downloading mode has been given full play to the service ability of downloading node, relies on the extensive distribution of downloading node, solves the influence that connectivity pair is downloaded to a certain extent, reduces the cost of service arrangement greatly.But this mode transition relies on the performance of downloading node, and for the not high resource of some temperatures, it is limited that it downloads number of nodes, can't bring into play the effect of P2P network, and speed of download and stability all are difficult to guarantee.And this mode is very big to the consumption of network, and a large amount of network environments is to forbid the P2P agreement.
At the problems referred to above, provide in the prior art above-mentioned P2P mode is combined with the C/S mode, provide the P2SP mode to download.Quicken by server issue or to resource downloading, reduce the consumption of server and improve network connectivty, given full play to the advantage of C/S and P2P mode by the P2P mode.Hot resource can be brought into play the ability of P2P, and the unexpected winner resource then relies on server that service is provided.
In realizing process of the present invention, the inventor finds prior art, and there are the following problems at least:
Because hot resource is limited, if will support the magnanimity resource, certainly will to provide service for a large amount of unexpected winner resources, though and its expense is lower than pure C/S model, but cost is not all SP (Service Provider, service provider) can be born, in addition, can't use under the environment of P2P agreement at some, downloading experience is poorer.
Summary of the invention
The invention provides a kind of method for down loading, system and device, be used to improve stability, reliability and the speed of download of download.
The invention provides a kind of method for down loading, comprising:
Receive the download request of client;
According to described download request, obtain the data corresponding with described download request;
Described data are sent to described client.
Wherein, describedly obtain the data corresponding, comprising with described download request:
Download described data from the data source of described data correspondence; Or
From buffer memory, obtain the described data of storage in advance.
Wherein, described data source from the data correspondence is downloaded described data, comprising:
Obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.
Wherein, described data source from described data correspondence is downloaded after the described data, also comprises:
With described storage in described buffer memory.
Wherein, described with after storage is in described buffer memory, also comprise:
When not receiving described data corresponding download request in the Preset Time, described data are deleted from described buffer memory.
The present invention also provides a kind of download apparatus, comprising:
Receiver module is used to receive the download request of client;
Acquisition module is used for the download request that receives according to described receiver module, obtains the data corresponding with described download request;
Sending module is used for the data that described acquisition module obtains are sent to described client.
Wherein, described acquisition module is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.
Wherein, described acquisition module, specifically be used to obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed downloaded described data from described data source.
Wherein, described device also comprises:
Cache module is used for storage from the data source data downloaded, uses for described acquisition module.
Wherein, described device also comprises:
Administration module is used for when described receiver module in the Preset Time is not received the data corresponding download request of described cache module storage described data being deleted from described cache module.
The present invention also provides a kind of download system, comprising:
Client is used for sending download request to service end, and receives the data of the described download request correspondence that described service end returns;
Service end is used to receive the download request of described client, obtains the data corresponding with described download request according to described download request, and described data are sent to described client.
Wherein, described service end specifically is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.
Wherein, described service end, specifically be used to obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed downloaded described data from described data source.
Wherein, described service end also is used for described storage to described buffer memory.
Wherein, described service end also is used for when not receiving described data corresponding download request in the Preset Time described data being deleted from described buffer memory.
Compared with prior art, the present invention has the following advantages: increased third party's transfer mechanism in downloading process, by the third party from the data source data download and after download finishes with data relay to client, thereby improved client downloads data stability, reliability and speed of download, can be at a high speed the scarce resource in the download network and realize that off-line downloads stably.
Description of drawings
In order to be illustrated more clearly in the present invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in the present invention or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is a kind of method for down loading flow chart among the present invention;
Fig. 2 is the download system Organization Chart in the application scenarios of the present invention;
Fig. 3 is the downloading task management flow chart in the application scenarios of the present invention;
Fig. 4 is the download flow chart in the application scenarios of the present invention;
Fig. 5 is the structural representation of a kind of download apparatus among the present invention;
Fig. 6 is the structural representation of a kind of download system among the present invention.
Embodiment
Technical scheme provided by the invention is used and is comprised in the network system of client, service end and data source, in the process of data download, increased third party's transfer mechanism, utilize service end as the transfer between client and the data source, also these data are offered client from the data source data download by service end.In addition, after service end finishes from the data source data download, this metadata cache so that these data are offered client, can also have been improved stability, reliability and the speed of download of user's download process.
Below in conjunction with the accompanying drawing among the present invention, technical scheme of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making the every other embodiment that is obtained under the creative work prerequisite.
As shown in Figure 1, a kind of method for down loading flow chart among the present invention may further comprise the steps:
Wherein, download request can be sent by client by the user.After the user sends download request, can withdraw from login in client.
Particularly, can download this data, also can from buffer memory, obtain these data of storage in advance from the data source of data correspondence.From the process of data source data download, can obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to this load condition with download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is from the data source data download.
After the data source data download, can also be in buffer memory with storage.When not receiving this data corresponding download request in the Preset Time, these data can be deleted from buffer memory.
Need to prove, in the process of the data of obtaining the download request correspondence, can not require that the user is online on client.The user can handle off-line state, the situation of obtaining that also can the online query data.
Particularly, after finishing from the data source data download or from buffer memory, obtaining data, data directly can be offered client.Client can be simultaneously concurrently from data source and other client downloads data in obtaining the process of these data, also can be no longer from data source and other client downloads data.
The present invention has increased third party's transfer mechanism in downloading process, by the third party from the data source data download and after download finishes with data relay to client, thereby improved client downloads data stability, reliability and speed of download, can be at a high speed the scarce resource in the download network and realize that off-line downloads stably.
Method for down loading provided by the invention, can be applied in the download system as shown in Figure 2, this download system comprises: first client 210, second client 220, user management node 230, database 240, scheduling node 250, download node 260, cache node 270, service node 280 and data source 290.
Wherein, first client 210 is connected with user management node 230, is used for sending download request to user management node 230, adds the corresponding download task by user management node 230.
Need to prove that the user can withdraw from the login in first client 210 after can sending download request by first client 210.After the data that service node 280 obtains the download request correspondence finished, the user can login second client 220, from service node 280 data download.First client 210 and second client 220 can be installed on the computer, also can be installed on the equipment such as mobile phone.First client 210 can be different clients with second client 220, is in different networks respectively; Also can be same client end, be installed on the same equipment.
Particularly, when user's logging on client, user management node 230 carries out authentication and rights management to the user respectively according to user's authentication information and authority information.When the user sends download request by client, user management node 230 adds this download request corresponding download task, and in the process of downloading node 260 data download, to the client feedback download state, this download state includes but not limited to: progress of having downloaded and current speed of download; After the client downloads data finished, user management node 230 was deleted the corresponding download task.Certainly, user management node 230 also can manage downloading task according to the request of client, comprises deletion or suspends downloading task etc.
Need to prove, download node 260 and cache node 270 and can be same node.
Need to prove that the connectedness between service node 280 and client and the cache node 270 better.Cache node 270 and service node 280 can be same node.
Below in conjunction with above-mentioned application scenarios, the method for down loading among the present invention is carried out detailed, concrete description.
As shown in Figure 3, the downloading task management flow chart in the application scenarios of the present invention specifically may further comprise the steps:
Particularly, when the user logined first client, the user management node carried out authentication according to the authentication information of storing in the database to the user.After authentication was passed through, the user successfully logined first client, and sent download request by first client, carried the downloading portal information that the user obtains by website or other modes in this download request, comprised information such as download link, download seed.The data of download request correspondence can be stored in data source by the form of file, also can be stored in cache node by the form of file.
In follow-up flow process, the user management node can also carry out rights management to the user according to the information in the database, for example: the kind of download, to the modification of user task (adding or the deletion downloading task) etc.
Wherein, downloading task can include but not limited to following attribute: filename keyword, file type, the subscribed event term of validity and file content cryptographic Hash.Client can also be provided with the file size limitation and the coupling downloaded files number upper limit to the downloading task of off-line.
Particularly, each attribute (as the file content cryptographic Hash) that can pass through the data corresponding file of being asked judges whether store the data of request to some extent in cache node.
Wherein, the state information of downloading task includes but not limited to: progress of having downloaded and current speed of download etc.State information can show when the user logins, and also can show when the user asks query State information.When storing the data of downloading task correspondence in the cache node, the scheduling node directly state information of downloading task is set to download and finishes.
Particularly, in practical operation, be deployed with a plurality of download nodes in the system usually.When receiving the download request of client, scheduling node is distributed to one or several download node download according to the downloading task of client-requested and the loading condition of download node with this downloading task.
Step 306 is downloaded node and is downloaded corresponding data according to downloading task from data source, and these data are reported cache node.
Need to prove that in the process of downloading the node data download, scheduling node can upgrade the state information of corresponding download task according to the progress of downloading, comprise the progress downloaded and current speed of download.
If receive download request, then execution in step 309; Otherwise, execution in step 310.
Need to prove that the user adds downloading task by first client, and withdraws from after the login of first client, can be by logining the state information of the downloading task that first client or other client querys added once more.When download that the node data download finishes or cache node in when having the data of downloading task correspondence, scheduling node can database in the state information of this downloading task be set to download and finish, and downloaded by this downloading task of user management node notice client and to finish, the mode of notice can be modes such as Mail or note.The user is by inquiry or receive the notice of user management node, know downloading task downloaded finish after, can download the data of this downloading task correspondence.As shown in Figure 4, the download flow chart in the application scenarios of the present invention specifically may further comprise the steps:
Step 404, second client connects according to address information and this service node of service node, and sends download request to service node.
Need to prove that in above-mentioned downloading process, downloading task also can initiatively be deleted by client.When client is passed through the service node data download, also can directly pass through the data source data download.
The present invention makes up resources bank and finishes actual downloading task by the third party, and in downloading process, downloading task is optimized and manages, client is finally from third party's data download, can provide download service fast, accurately for the user by third-party connectedness and resource accumulation, download success rate and speed of download have been improved, can provide favourable support for making up packing download and video class product, realize user's off-line download function.
As shown in Figure 5, the structural representation for a kind of download apparatus among the present invention comprises:
Particularly, acquisition module 520 is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.Wherein, acquisition module 520 can obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.
Sending module 530 is used for the data that acquisition module 520 obtains are sent to described client.
Said apparatus can further include:
The present invention has increased third party's transfer mechanism in downloading process, by the third party from the data source data download and after download finishes with data relay to client, thereby improved client downloads data stability, reliability and speed of download, can be at a high speed the scarce resource in the download network and realize that off-line downloads stably.
As shown in Figure 6, the structural representation for a kind of download system among the present invention comprises:
Particularly, service end 620 is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.Wherein, service end 620 can be obtained a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.Service end 620 can also be with described storage in described buffer memory, when not receiving described data corresponding download request in the Preset Time, described data is deleted from described buffer memory.
The present invention has increased third party's transfer mechanism in downloading process, by the third party from the data source data download and after download finishes with data relay to client, thereby improved client downloads data stability, reliability and speed of download, can be at a high speed the scarce resource in the download network and realize that off-line downloads stably.
Through the above description of the embodiments, those skilled in the art can be well understood to the present invention and can realize by the mode that software adds essential general hardware platform, can certainly pass through hardware, but the former is better execution mode under a lot of situation.Based on such understanding, the part that technical scheme of the present invention contributes to prior art in essence in other words can embody with the form of software product, this computer software product is stored in the storage medium, comprise that some instructions are with so that a station terminal equipment (can be mobile phone, personal computer, server, the perhaps network equipment etc.) carry out the described method of each embodiment of the present invention.
The above only is a preferred implementation of the present invention; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the principle of the invention; can also make some improvements and modifications, these improvements and modifications also should be looked protection scope of the present invention.
It will be appreciated by those skilled in the art that the module in the device among the embodiment can be distributed in the device of embodiment according to the embodiment description, also can carry out respective change and be arranged in the one or more devices that are different from present embodiment.The module of the foregoing description can be integrated in one, and also can separate deployment; A module can be merged into, also a plurality of submodules can be further split into.
The invention described above embodiment sequence number is not represented the quality of embodiment just to description.
More than disclosed only be several specific embodiment of the present invention, still, the present invention is not limited thereto, any those skilled in the art can think variation all should fall into protection scope of the present invention.
Claims (15)
1. a method for down loading is characterized in that, comprising:
Receive the download request of client;
According to described download request, obtain the data corresponding with described download request;
Described data are sent to described client.
2. the method for claim 1 is characterized in that, describedly obtains the data corresponding with described download request, comprising:
Download described data from the data source of described data correspondence; Or
From buffer memory, obtain the described data of storage in advance.
3. method as claimed in claim 2 is characterized in that, described data source from the data correspondence is downloaded described data, comprising:
Obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.
4. method as claimed in claim 2 is characterized in that, described data source from described data correspondence is downloaded after the described data, also comprises:
With described storage in described buffer memory.
5. method as claimed in claim 4 is characterized in that, and is described with after storage is in described buffer memory, also comprises:
When not receiving described data corresponding download request in the Preset Time, described data are deleted from described buffer memory.
6. a download apparatus is characterized in that, comprising:
Receiver module is used to receive the download request of client;
Acquisition module is used for the download request that receives according to described receiver module, obtains the data corresponding with described download request;
Sending module is used for the data that described acquisition module obtains are sent to described client.
7. device as claimed in claim 6 is characterized in that,
Described acquisition module is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.
8. device as claimed in claim 7 is characterized in that,
Described acquisition module specifically is used to obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.
9. device as claimed in claim 7 is characterized in that, also comprises:
Cache module is used for storage from the data source data downloaded, uses for described acquisition module.
10. device as claimed in claim 9 is characterized in that, also comprises:
Administration module is used for when described receiver module in the Preset Time is not received the data corresponding download request of described cache module storage described data being deleted from described cache module.
11. a download system is characterized in that, comprising:
Client is used for sending download request to service end, and receives the data of the described download request correspondence that described service end returns;
Service end is used to receive the download request of described client, obtains the data corresponding with described download request according to described download request, and described data are sent to described client.
12. system as claimed in claim 11 is characterized in that,
Described service end specifically is used for downloading described data from the data source of described data correspondence; Or from buffer memory, obtain in advance the described data of storage.
13. system as claimed in claim 12 is characterized in that,
Described service end specifically is used to obtain a plurality of load conditions of carrier aircraft down, give one or more carrier aircrafts down according to described load condition with described download request corresponding download Task Distribution, and the following carrier aircraft of passing through to be distributed is downloaded described data from described data source.
14. system as claimed in claim 12 is characterized in that,
Described service end also is used for described storage to described buffer memory.
15. system as claimed in claim 14 is characterized in that,
Described service end also is used for when not receiving described data corresponding download request in the Preset Time described data being deleted from described buffer memory.
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| CN201010155771.XA CN102238137B (en) | 2010-04-27 | 2010-04-27 | Method, system and device for downloading |
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| CN201010155771.XA CN102238137B (en) | 2010-04-27 | 2010-04-27 | Method, system and device for downloading |
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