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关键词： Java   网络   Socket  

摘要： 网络通信一直是计算机应用的重要领域,而java对此提供了较好的支持。本文首先阐述了网络通信的基本概念,接着结合Java语言在网络通信中的应用,编写出一个简单的时钟服务器,最后显示了运行结果,并对应用进行了总结。

关键词： Java   异常   异常处理  

摘要： 异常处理是Java安全性的一个重要保护手段,在Java程序设计中利用好Java的异常处理机制,可以增进程序的稳定性和效率。本文系统介绍了Java语言中异常的概念、异常处理的意义Java异常处理的机制Java中异常类的层次结构Java异常处理方法和异常处理原则。

关键词： 通信技术   Java   NIO   非阻塞通信   套接字  

摘要： 分析了 Java NIO 的特点,对网络应用中阻塞通信与非阻塞通信以及 Java NIO 的非阻塞通信工作机制进行了探讨,对网络通信中非阻塞套接字的实现作了深入研究,最后提出了实现非阻塞通信的方法和步骤。

关键词： 网络存储   Java技术   MySQL数据库   网络设计管理模块  

摘要： 针对在高校教学模式中教学资料的保存及调用,提出了基于B/S模式下的网络存储系统结构,从而大大提高了数据存储的效率。使用java+My SQL集成开发环境开发设计了这一系统。

关键词： 视频分享   视频服务器   Java   开源技术  

摘要： 介绍了开发视频在线分享平台的思路和方法,给出了实用环境下的一般系统结构,着重说明了使用Java编程语言和开源工具实现该系统的细节。

关键词： JAVA语言   程序设计   中等专业教育   教材  

ISBN: (纸本)9787562446156

摘要： 本书涵盖了JavaSE1.5的基础知识，内容包括：Java开发基础平台建立、Java语言基础、面向对象程序设计、接口与内部类、Java异常处理、流与文件操作。

关键词： Java   COM   WebGIS  

摘要： COM组件是实现软件复用的有效途径之一,很多GIS的核心组件都是采用COM技术实现,Java与XML是目前最为流行的网络实现技术,Java语言跨平台功能强大,XML在数据转换与传输、内容的表达与搜索等方面有广泛的应用。在充分利用基于COM技术开发的基于XML且独立于数据库产品的空间数据对象GIS核心平台之上,结合Java技术开发基于Internet的WebGIS,实现了传统GIS的分布式扩展。本文给出了该WebGIS的设计与实现方案。

关键词： ARCHITECTURE & technology   AGRICULTURAL systems   TECHNOLOGICAL innovations   FARMERS   ORAL tradition   ANTHROPOLOGY   HISTORY   ANTIQUITIES   SOCIAL groups  

摘要： Linking up with current discussions on the complex relationship between science, technology, and the civilizing missions in the former colonies, the author describes how technological romanticism shaped the development of a colonial irrigation technology in the Netherlands East Indies. Based on assumptions of the moral role of engineers in community development and the supposed greater fairness of local irrigation systems, engineers developed numerous hybrid irrigation technologies to support local rice production. The example of the development and almost instant failure of colonial waduk(water tanks) shows just how much engineers relied on the civilizing role of technology to solve differences in access to irrigation water. Currently, Indonesian farmers employ a similar kind of technological romanticism by imagining a fair and just colonial technological tradition that in fact failed—and that was also never introduced in this area. The wadukis now eagerly accepted as a fair way, based on colonial tradition, to solve differences in access to irrigation water. These imagined traditions appear as a legitimation for attempting to decentralize the power of the state and to counter nepotism, represented by local bureaucrats and vested interests.

关键词： Java processor   stack folding   predecoded cache   ILP  

摘要： Java processors have been introduced to offer hardware acceleration for Java applications. They execute Java bytecodes directly in hardware. However, the stack nature of the Java virtual machine instruction set imposes a limitation on the achievable execution performance. In order to exploit instruction level parallelism and allow out of order execution, we must remove the stack completely. This can be achieved by recursive stack folding algorithms, such as OPEX, which dynamically transform groups of Java bytecodes to RISC like instructions. However, the decoding throughputs that are obtained are limited. In this paper, we explore microarchitectural techniques to improve the decoding throughput of Java processors. Our techniques are based on the use of a predecoded cache to store the folding results, so that it could be reused. The ultimate goal is to exploit every possible instruction level parallelism in Java programs by having a superscalar out of order core in the backend being fed at a sustainable rate. With the use of a predecoded cache of 2 x 2048 entries and a 4-way superscalar core we have from 4.8 to 18.3 times better performance than an architecture employing pattern based folding. (c) 2008 Elsevier B.V. All rights reserved.

关键词： Java   MVC   Struts   Ajax   Hibernate  

摘要： 本文给出了一个基于Java技术的OA系统的设计方案。该系统有很好的平台无关性和安全性,采用MVC架构,数据、视图表现与逻辑控制完全分离,具有扩展性好、易维护等特点。运用Ajax技术,做到实时响应以提高用户体验。支持多种主流数据库,并使用数据库连接池以提高性能。文章首先介绍了OA的发展历史与现状,并结合实际进行技术选择和架构设计。然后对功能设计和系统架构进行了详细说明。