【導(dǎo)讀】來越簡單，而網(wǎng)上求職和招聘也已經(jīng)變得很成熟。分析、總體設(shè)計、數(shù)據(jù)庫設(shè)計、詳細(xì)設(shè)計等。整個系統(tǒng)由系統(tǒng)用戶登錄注冊模塊、系。評論模塊及站內(nèi)信息高級搜索模塊等組成，論文詳細(xì)描述了這些模塊的結(jié)構(gòu)、功能以及具體設(shè)計過程。為了達(dá)到運行穩(wěn)定、架，部分采用JSP+JavaBeans組件技術(shù)。部分頁面的CSS以及JavaScript的編寫遵循最。新W3C標(biāo)準(zhǔn)，支持在多種主流瀏覽器中使用。

　　

【正文】 我誠摯的謝意 !謝謝你們 !碼農(nóng)畢業(yè)設(shè)計下載網(wǎng)： 32 外文原文 Java and the Inter If Java is, in fact, yet another puter programming language, you may question why it is so important and why it is being promoted as a revolutionary step in puter programming. The answer isn’t immediately obvious if you’re ing 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. 1. Clientside programming The Web’s initial serverbrowser design provided for interactive content, but the interactivity was pletely provided by the server. The server produced static pages for the client browser, which would simply interpret and display them. Basic HTML contains simple mechanisms for data gathering: textentry boxes, check boxes, radio boxes, lists and dropdown lists, as well as a button that can only be programmed to reset the data on the form or “submit” the data on the form back to the server. This submission passes through the Common Gateway Interface (CGI) provided on all Web servers. The text within the submission tells CGI what to do with it. The most mon action is to run a program located on the server in a directory that’s typically called “cgibin.” (If you watch the address window at the top of your browser when you push a button on a Web page, you can sometimes see “cgibin” within all the gobbledygook there.) These programs can be written in most languages. Perl is a mon choice because it is designed for text manipulation and is interpreted, so it can be installed on any server regardless of processor or operating system. Many powerful Web sites today are built strictly on CGI, and you can in fact do nearly anything with it. However, Web sites built on CGI programs can rapidly bee overly 碼農(nóng)畢業(yè)設(shè)計下載網(wǎng)： 33 plicated to maintain, and there is also the problem of response time. The response of a CGI program depends on how much data must be sent, as well as the load on both the server and the Inter. (On top of this, starting a CGI program tends to be slow.) The initial designers of the Web did not foresee how rapidly this bandwidth would be exhausted for the kinds of applications people developed. For example, any sort of dynamic graphing is nearly impossible to perform with consistency because a GIF file must be created and moved from the server to the client for each version of the graph. And you’ve no doubt had direct experience with something as simple as validating the data on an input form. You press the submit button on a page。 the data is shipped back to the server。 the server starts a CGI program that discovers an error, formats an HTML page informing you of the error, and then sends the page back to you。 you must then back up a page and try again. Not only is this slow, it’s inelegant. The solution is clientside programming. Most machines that run Web browsers are powerful engines capable of doing vast work, and with the original static HTML approach they are sitting there, just idly waiting for the server to dish up the next page. Clientside programming means that the Web browser is harnessed to do whatever work it can, and the result for the user is a much speedier and more interactive experience at your Web site. The problem with discussions of clientside programming is that they aren’t very different from discussions of programming in general. The parameters are almost the same, but the platform is different: a Web browser is like a limited operating system. In the end, you must still program, and this accounts for the dizzying array of problems and solutions produced by clientside programming. The rest of this section provides an overview of the issues and approaches in clientside programming. One of the most significant steps forward in clientside programming is the development of the plugin. This is a way for a programmer to add new functionality to the browser by downloading a piece of code that plugs itself into the appropriate spot in the browser. It tells the browser “from now on you can perform this new activity.” (You need to download the plugin only once.) Some fast and powerful behavior is added to browsers via plugins, but 碼農(nóng)畢業(yè)設(shè)計下載網(wǎng)： 34 writing a plugin is not a trivial task, and isn’t something you’d want to do as part of the process of building a particular site. The value of the plugin for clientside programming is that it allows an expert programmer to develop a new language and add that language to a browser without the permission of the browser manufacturer. Thus, plugins provide a “back door” that allows the creation of new clientside programming languages (although not all languages are implemented as plugins). languages Plugins resulted in an explosion of scripting languages. With a scripting language you embed the source code for your clientside program directly into the HTML page, and the plugin that interprets that language is automatically activated while the HTML page is being displayed. Scripting languages tend to be reasonably easy to understand and, because they are simply text that is part of an HTML page, they load very quickly as part of the single server hit required to procure that page. The tradeoff is that your code is exposed for everyone to see (and steal). Generally, however, you aren’t doing amazingly sophisticated things with scripting languages so this is not too much of a hardship. This points out that the scripting languages used inside Web browsers are really intended to solve specific types of problems, primarily the creation of richer and more interactive graphical user interfaces (GUIs). However, a scripting language might solve 80 percent of the problems encountered in clientside programming. Your problems mi