The Resource Sharing Platform For Research And Development

As computer processing power and network communication technology, computer networks play in people's lives a bigger and bigger role, especially in communications and the sharing of resources people have played an indelible role. In order to give full play to the role of network bandwidth and reduce the waste of idle bandwidth, P2P technology in people's lives gradually becomes the mainstream technology resource sharing.The development of P2P sharing of resources for people to bring the convenience, but at the same time, due to the management of P2P there are some shelter client, making all kinds of harmful resources (viruses, pornography and other information) is also able to transmit in the network.P2P technology in the project on the basis of independent development, that is, with the easy P2P sharing, and gives full play to the network with the function, but also an increase of the management of resources can't make harmful free transmission on the network. System uses the B/S and C/S model of combining the development of models. In the B/S mode, the user can easily search for resources, and its retrieval system or resources have been dealing with artificial and harmful information have been filtered to reduce the virus to damage a user's computer system. In C/S model, and give full play to the client's processing power, the same file block, multi-threaded, multi-point download, effectively improve the utilization of network bandwidth.When uploading files to determine whether the resource already exists on the server, if the store does not already exist. From the client download to use when resources MD5 can determine how many users are downloading the resources, the number of users download the client to allow the sharing of resources, users can download from other users to download resources. From resources, if multiple users upload at the same time, the server can determine, so that multiple users upload coordination of different pieces of different users to upload in order to improve the utilization of network band. The project to solve the same document several times on the same server storage, a waste of storage space too. Computer resources through the MD5 value of files, and then search the database of resources to determine whether the resources exist in the server resources, if the existence of the resource file, the file is no longer physical storage resources in order to achieve the purpose of saving space.