java企业级通用权限安全框架源码 z A 代码生成器(开发利器); B 阿里数据库连接池druid; C 安全权限框架shiro ; D ehcache 自定义二级缓存 系统为主流的 springmvc+mybaits 3.2 版本 ,有maven版本和非maven版本,赠送同UI hibernate版本(支持sqlsever mysql oracle) jdk 1.6 1.7 1.8&nb...【阅读全文】
Java 内存模型The JMM defines a partial ordering called happens-before on all actions within the program.The rules for happens-before are:Program order rule. Each action in a thread happens-before every action in that thread that comes later in the program order.Monitor lock rule. A...【阅读全文】
1) Determining the Number of Threads 最少最少: Runtime.getRuntime().availableProcessors(); Number of threads = (Number of Available Cores) / (1 - Blocking Coefficient)2) Determining the Number of Par...【阅读全文】
// First we assume all old entries needs to be deleted and then we figure out the ones to keep Map<String, StreamEntry> toDeleteEntries = FluentIterable.from( knownEntries ) .uniqueIndex( new Function<StreamEntr...【阅读全文】