Jms provides a way for java programs to access an enterprise messaging system , also known as message oriented middleware Jms是由sun microsystems开发的，它为java程序员提供一种访问企业消息系统的方法，即面向消息的中间件（ mom ） 。
The term " message - oriented middleware " is often applied to mq servers and underscores the perception that the primary use for mq technology is to connect disparate systems 术语“面向消息的中间件”经常应用于mq服务器，它强调mq技术主要用途是连接完全不同的系统。
Next , we ll take an architectural view , with a quick look at how j2ee messaging technologies work together with message - oriented middleware in a typical enterprise network 接着，我们将从体系结构的角度来快速了解一下，在一个典型的企业网络环境中， j2ee消息传递技术如何与面向消息的中间件协同工作。
Developers of message - oriented applications have a choice they must make early on in the development process - pick a commercial messaging product , or roll their own cheaper , lighter - weight solution 面向消息的应用程序的开发人员在开发过程的初期就必须做出选择- -选择一个商业消息产品，或者构建自己的更便宜的、更轻量级的解决方案。
Given in this paper , through analyzing the framework of j2ee , there are three applications of xml in j2ee , such as data description and exchange , data present and message - oriented distributed computing . in the face project , we use xml and j2ee to implement the exchange of xml document and relation database . in addition , this paper proposes us a fine - grained access control algorithm for xml documents , which may protect the resource of xml documents 本文详细地介绍了xml技术和j2ee技术，叙述了xml在j2ee中的三种应用：数据描述和交换、数据显示及面向消息的分布计算，并在实际的face项目中应用xml技术和j2ee技术，实现xml文档和关系数据库之间的相互转换；另外，对xml文档进行了细粒度的访问控制，提出了一种授权访问控制算法，实现了将源xml文档转变为符合一定安全需求的目标xml文档。
Marc - thomas schmidt is a distinguished engineer and has been working on ibms business integrations technologies for more than a decade , from workflow management systems to advanced message - oriented middleware to business process management technology . in his current role , he leads the work on technical architecture for ibms esb technologies Marc - thomas schmidt是ibm的杰出工程师( distinguished engineer ) ，已从事了十多年ibm的业务集成技术方面的工作，涉及到的领域包括从工作流管理系统，到面向消息的高级中间件，再到业务流程管理技术等方面。
Various message - oriented middleware tools , plus xml soap simple object access protocol and . net will be integrated in this way ; in fact , by rationalizing the conflicting xml document type definitions dtds that are being proposed in some industries , the mda can even help organizations interoperate across them 各种面向消息的中间件工具，再加上xml / soap （简单对象访问协议）和. net ，将以这种方式集成进来。事实上，通过消除某些行业提出的xml文档类型定义（ dtd ）的冲突， mda可以帮助企业对不同的文档互操作。
Orb can be well capable to support the integration of distributed heterogeous application , while it lacks of the support to realtime messaging ; mom can do well in asynchronous decoupled communication within enterprise application , but it does n ' t support inter - operation between different products from different vendors , which will set a barrier for future integration 对象请求代理中间件orb虽具有良好的集成分布异构应用的能力，但不能有效支持实时消息通信；面向消息的中间件mom虽能满足企业应用中的异步松散耦合通信，但一般mom缺乏实时qos支持且不同厂商的mom产品难以互操作，给系统集成带来不便。
This thesis presents a new solution called the smart platform , which better tackles the problems by : 1 ) a runtime environment discovery mechanism which allows a new device to automatically find and join the runtime environment ; 2 ) the loose coupled publish - subscribe inter - module coordination model , which caters for the spontaneous interaction between modules ; 3 ) a global - local two - layer runtime environment structure . the transient failure of the wireless network can be recovered at the local environment layer . the asynchronous nature of the interactions in the < wp = 8 > publish - subscribe model also prevents modules from blocking on the transient network failure ; 4 ) distinguishing two classes of communications with different qos requirements , the message - oriented and the stream - oriented 本文提出并实现了smartplatform ，其特点是： 1 ）运行环境发现机制，使外来计算设备可以自动加入软件平台的运行环境； 2 ）松耦合的发布/订阅式模块间协调机制，模块间关联可以自发组织； 3 ）局部全局的两层运行环境组织策略，无线网频发的暂时故障可以在计算设备的局部运行环境层次被屏蔽掉；同时发布/订阅模型的异步性也使得模块不会因网络故障而阻塞； 4 ）区分智能空间中的两类不同的通信需求面向消息的和面向流的，并分别为它们提供了优化的通信层支持； 5 )基于多agent抽象模型，为整合不同应用领域的模块和遗留代码提供了有力工具。
