1. Tips
If Java is, in fact, yet another computer programming language, you may question why it is so important and why it is being promoted as a revolutionary step in computer programming. The answer isn’t immediately obvious if you’re coming from a traditional programming perspective. Although Java is very useful for solving traditional standalone programming problems, it is also important because it will solve programming problems on the World Wide Web. What is the Web?
The Web can seem a bit of a mystery at first, with all this talk of “surfing,” “presence,” and “home pages.” It’s helpful to step back and see what it really is, but to do this you must understand client/server systems, another aspect of computing that is full of confusing issues. The primary idea of a client/server system is that you have a central repository of information， some kind of data, often in a database。That you can distribute on demand to some set of people or machines. The basic concept of client/server computing, then, is not so complicated. The problems arise because you have a single server trying to serve many clients at once.
Building a java chat server
Should I take this tutorial?
in this tutorial, we will build both the server and client sides of a simple chat system this tutorial is for someone with little or no experience doing networking programming. We’ll cover topics such as networking and multithreading in enough detail so that you'll be able to follow the examples, even if you have little or no experience doing this kind of programming. You will, however, need to be familiar with basic object-oriented programming in the Java language. In this tutorial, you'll build a simple, centralized, connection-oriented Java server. In doing so, you'll learn a basic framework that you can use when creating such a server, using time-honored techniques that work well in many situations.
1.提示
Java作為另外一種計算機(jī)編程語言，你可能會問為什么它是如此重要，為什么它在計算機(jī)編程方面被宣傳為一項革命性的一步。如果你以傳統(tǒng)的編程態(tài)度來看答案是不明顯的。雖然java解決傳統(tǒng)的單機(jī)編程問題非常有用的，但它解決網(wǎng)絡(luò)編程問題也是非常有用的。
什么是web？當(dāng)“沖浪”，“在線”，“主頁”被談?wù)摰臅r候web好像有點神秘。要想解開web的神秘，你必須了解客戶機(jī)/服務(wù)器系統(tǒng)，另一個關(guān)于計算機(jī)的充滿困惑的問題?？蛻魴C(jī)/服務(wù)器系統(tǒng)的主要構(gòu)思是一個中央儲存庫的資料，往往是放在數(shù)據(jù)庫中的一些資料，然后可以滿足一些人或者是機(jī)器的需求?？蛻魴C(jī)/服務(wù)器的基本概念并不是那么復(fù)雜，這個概念的提出你有一個單一的服務(wù)器試圖在同一時刻服務(wù)于許多客戶。
建立一個語音聊天室服務(wù)器：
我應(yīng)該借這個補(bǔ)習(xí)一下嗎？
在本教程中，我們將建立兩個服務(wù)器和客戶端雙方的一個簡單的聊天室，系統(tǒng)中的補(bǔ)習(xí)，是為某人與很少或沒有經(jīng)驗，做網(wǎng)絡(luò)規(guī)劃。，如果我們涵蓋的課題如網(wǎng)絡(luò)和多線程不夠詳細(xì)，將在以后列舉例子，即使你有很少或沒有做這樣的項目的經(jīng)驗。不過你需要熟悉基本的面向?qū)ο缶幊淘贘ava語言。在本教程中，你將建立一個簡單的，集中的，面向連接Java服務(wù)器。制造這樣一臺服務(wù)器，你將學(xué)到一個基本框架，不過需要長時間的努力。