摘要
云计算是未来的计算模式,其市场前景十分广阔。云计算按提供的服务类别分为三类:IaaS、PaaS、SaaS。各种应用部署在PAAS上,并由PAAS提供自主管理。在对PAAS提供的编程模型做了分析后;接着分析了支持Java云应用的主流PAAS,并分析了它们各自的优点和缺点;最后讨论了Java云应用在GAE中的开发、运行和测试的方法。JVM和打包机制也保证了Java应用的相互隔离,提供了Java运用的安全保障。
Cloud computing is a computing model in the future;the market prospect is very broad.Cloud computing is divided into three categories according to the type of services:IaaS,PaaS,SaaS.A variety of applications are deployed on the PAAS which also provide self-management.Analyze PAAS programming model;and then analyze the main PAAS which support Java cloud applica tions and also their respective advantages and disadvantages;lastly,discuss how to develop,run,and test the Java cloud applica tions in GAE.The JVM packaged mechanisms ensure that Java applications isolated from each other,which provode Java applica tions security.
作者
陈虹君
吴雪琴
CHEN Hong-jun,WU Xue-qin(Sichuan TOP IT Vocational Institute,Chengdu 611743,China)
出处
《电脑知识与技术》
2013年第5期3074-3077,共4页
Computer Knowledge and Technology