java一个国内的开源Java缓存系统请认真阅读您的文件包然后写出其具体功能(至少要20个字)。尽量不要让站长把时间都花费在为您修正说明上。压缩包解压时不能有密码。系统会自动删除-java a domestic system of open-source Java cache, please carefully read your paper packet and then write their specific functions (at least 20 words). As far as