篇一 :Jboss ESB简介及开发实例

Jboss ESB简介及开发实例.

一、Jboss ESB的简介

1、 什么是ESB。

ESB的全称是Enterprise Service Bus,即企业服务总线。ESB是过去消息中间件的发展,ESB采用了“总线”这样一种模式来管理和简化应用之间的集成拓扑结构,以广为接受的开放标准为基础来支持应用之间在消息、事件和服务的级别上动态的互连互通。

ESB是一种在松散耦合的服务和应用之间标准的集成方式。它可以作用于:

①面向服务的架构 - 分布式的应用由可重用的服务组成。

②面向消息的架构 - 应用之间通过ESB发送和接受消息。

③事件驱动的架构 - 应用之间异步地产生和接收消息。

用一句比较通俗的话来描述ESB:ESB就是在架构中实现服务间智能化集成与管理的中介。

2、 ESB和SOA之间的关系。

介绍ESB就不得不提到SOA的概念,那么什么是SOA呐?

简单的说,SOA(service-oriented architecture)是面向服务的体系结构,是一类分布式系统的体系结构。这类系统是将异构平台上应用程序的不同功能部件(称为服务)通过这些服务之间定义良好的接口和规范按松耦合方式整合在一起,即将多个现有的应用软件通过网络将其整合成一个新系统。

多应用的整合不但是跨平台的,而且应该是松耦合的,也就是说,被整合的应用自身仍保持其自主,如香港政府已回归中国,但保持一国二制。

新增设的业务功能,应允许适应变化,即随需应变。

如何做到跨平台、松耦合,除使用方和服务方外,另有中介方,提供驻册登记和查询。现在社会的劳务市场和职业介绍所等都起这样作用。即先查询、梆定、然后调用。

在SOA的体系结构中,简单的可以分为如下几个角色:

①服务使用者:服务使用者是一个应用程序、一个软件模块或需要一个服务的另一个服务。它发起对注册中心中的服务的查询,通过传输绑定服务,并且执行服务功能。服务使用者根据接口契约来执行服务。 ②服务提供者:服务提供者是一个可通过网络寻址的实体,它接受和执行来自使用者的请求。它将自己的服务和接口契约发布到服务注册中心,以便服务使用者可以发现和访问该服务。

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篇二 :参会邀请函 含回执Invitaion for China Sourcing Conference (including confirmation receipt)

From:  China Council for International Investment Promotion (CCIIP)

Academy of Contact Center and BPO (ACCB)

“首届中国(广州)国际服务外包合作发展交易会 ”

暨电信服务专题研讨会”邀请函

 Invitation of China Sourcing Conference

 (Guangzhou) 2012

尊敬的     先生/女士

Honorable guest,

由广州市人民政府、中国国际投资促进会主办,广州市对外贸易经济合作局中国国际投资促进会服务外包工作委员会承办的“首届中国(广州)国际服务外包合作发展交易会”,暨由呼叫中心与服务外包研究院承办的“电信服务外包专题研讨会”于20##年2月28--29日在广州举行。

You’re warmly welcome to China Sourcing Conference (Guangzhou) 20## in Feb 28—29, 2012, sponsored by China Council for International Investment Promotion (CCIIP) and Guangzhou Municipal People's Government, and organized by Bureau of Foreign Trade and Economic Cooperation of Guangzhou Municipality. You’re also special guest of telecom session hosted by Academy of Contact Center and BPO.

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篇三 :A liar is not like usual understanding that will avoid each other

A liar is not like usual understanding that will avoid each other's eyes, instead more need eye contact to judge you whether believe what he says. 撒谎者不像惯常理解的那样会回避对方的眼神,反而更需要眼神交流来判断你是否相信他说的话。--lie to me

All human wisdom is summed up in two words ?Wait and hope.

人类所有的智慧可以归结为两个词 — 等待和希望。—— Alexandre Dumas Pére大仲马

Sabotage, everyone is capable of it. But some go about it more cruelness than the others.

阴谋破坏,每个人都能做,但有些人可以做得更加冷酷。--绝望的主妇

In your life, there will at least one time that you forget yourself for someone, asking for

no result, no company, no ownership nor love. Just ask for meeting you in my most beautiful years. 一生至少该有一次,为了某个人而忘了自己,不求有结果,不求同行,不求曾经拥有,甚至不求你爱我。只求在我最美的年华里,遇到你。--徐志摩

Power is above the legal right that you try your best to defend. 权力高于你尽全力捍卫的权利。--韩寒《三重门》

Sometimes,we are willing to forgive someone. It doesn't mean we really want to forgive him but for unwillingness to lose him. Only do we pretend to forgive him to prevent from losing him.

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篇四 :英语论文开题报告范文:function and application of descriptive translation studies

英语论文开题报告范文:function and application of descriptive translation studies 关键词:英语论文开题报告范文

function and application of descriptive translation studies

1 introduction

the intention of this study is to explore possible advantages of descriptive translation studies as in its application in translation practice and translation analysis.

since early 20th century, translation studies gradually broke away from the marginal status within other related disciplines and established itself as an empirical science. from then on, schools of thought have kept coming out and each claims its legitimacy for existence. among these schools is descriptive translation studies (dts).

dts approaches translation from an empirical perspective. translation is viewed to be a social activity having significant importance in the receiving culture and for the target community. therefore, translation is dealt with beyond the linguistic realization and language comparison, and is incorporated in social and cultural context.

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篇五 :新外版八年级下册Module9 Unit2 I believe that the world is what you think it is阅读训练案

潍坊实验中学初二英语阅读训练学案 编制:郭怀秀 审核:伊淑美 审批: 时间:2014-5-13

Module 9 Unit 2 I believe that the world is what you think it is.

Reading Practice

Fast Reading

Task I Read quickly and match the paragraphs with their contents.

Para1 what happened one day.

Para2 where she was and how she felt.

Para3 how she felt suddenly.

Para4 why she felt that way.

Para5 what happened after this.

Para6 what happened later.

Para7 what she thinks now.

Para8 what happened and when it happened.

Task II Read quickly and answer the questions.

(1)How old was Zhang Bei when she went to a new school?

(2)What changed her life?

(3)How does the writer feel now?

(4)What advice does she give?

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篇六 :The Joy Luck Club conflict and reconciliation of Chinese and Western cultures答辩陈词

Good afternoon, all the appraiser committee members. Ladies and gentlemen, Welcome to attend the oral defense. I am Xieyuan from the 2012 transferred students and my supervisor is Lihui.

With her sincere and intellectual guidance, for nearly six month's hard work, I have finished my paper. I will briefly introduce my thesis and welcome any suggestion.

The title of my paper is The Joy Luck Club - conflict ? reconciliation of Chinese and Western cultures. I choose this as my topic due to the following reasons.

Firstly, I am a fan of 俞飞鸿, who is one of the main actors of the movie The Joy Luck Club. It is just the wonderful movie that makes me interested in the original work.

Secondly, I’m interested in the differences between Chinese and Western culture, which shows a lot in this movie and the original novel.

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篇七 :The information disclosure for the non-traditional insurance products创新保险产品信息披露要求英文版

The Information Disclosure for the Non-traditional Insurance Products

Chapter 1 General Provisions

Article 1: This regulation has been formulated with a view to standardizing the insurance activities, protecting the legitimate rights and interests of policyholders.

The policyholder refers to the insurant, the insured or beneficiaries.

The insurant, the insured or beneficiaries shall notify the insurer of the occurrence of the insured risks in time after they have learned about them.

The insured refers to a person who is protected by the property or life insurance contract and who enjoys the right to insurance claims. An insurant may be an insured.

A beneficiary refers to a person who has been designated by the insured or the insurant to enjoy the right to insurance claims. The insurant or the insured may be the beneficiary.

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篇八 :定性研究和定量研究的区别论文The Difference and Combination of Quantitative and Qualitative Research

The Difference and Combination of

Quantitative and Qualitative Research

Abstract: Quantitative research and qualitative research are two basic paradigms and methods, each with different concept, nature, fundamental theory, and research process. Recently, there are more and more arguments about the tow methods and more and more scholars promote the combination of them in researches. This thesis demonstrates the differences between the two methods and also analyzes the combination of them and its significance in researches.

Key words: Quantitative research, qualitative research, difference, combination

Section One The Introduction of Quantitative Research and Qualitative Research

There are two paradigms in social science research. One is the positivist methodology and the other is the humanist methodology. The positivist methodology simulates the natural science and uses inductive method to discover new knowledge, uses the “hypothesis-deduction” mode to test theory (Kerlinger, 1964), uses the method of mathematical statistics to analyze quantizable empirical observation and to assure the cause-and-effect relationship. In comparison, the humanist methodology derives from humanist science and emphasizes collecting, comprehending and explaining documents.

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