Cache system and methods for modifying cache configuration and operating and querying cache data

The invention provides a cache system and methods for modifying cache configuration and operating and querying cache data, wherein the method for modifying cache configuration comprises the following steps of: querying configuration files to be modified in the configuration files of pre-created cache configuration, and modifying and storing the queried configuration files, wherein the configuration files of the cache configuration are configured in a way of xml or java annotating. By adopting a configuration way for the cache configuration, the decoupling of the cache configuration and codes is realized, code modification is not needed any more in subsequent system maintenance and cache configuration modification, and only the configuration files need to be modified in the processes of code compilation and redeployment so that the modifying process of the cache configuration is greatly simplified and the modifying efficiency is increased. The method provided by the embodiment of the invention can be used for