David Markley is a software engineering manager at Terra Lycos. He writes games on the side and is most known for Hextris. He hopes one day to live in a Hobbit hole ("They're environmentally friendly, don't you know...")
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Choosing a server-side language used to be easy. Way back when, CGI was pretty much the only scripting option out there. Intrepid developers could write their own server extensions, but few were up to the challenge, and the gap between these two options (inefficient CGI scripts and extremely complex server extension development) was huge.
Microsoft tried to fill this hole with Active Server Pages (ASP), which allow developers to use simple scripting to access the server and its extensions. But while ASP gives you an efficient way to return dynamic content, it essentially limits you to Microsoft platforms, and even the simplest of scripting mistakes can cause the server to crash or hang, effectively bringing down your website.
Apparently in response to ASP, Sun Microsystems gave the world JavaServer Pages (JSP) technology, which is based entirely upon Sun's popular Java programming language and gives developers the advantages of developing in Java in a more relaxed, script-like environment. Behind the scenes, JSP pages are dynamically assembled into Servlets, which are simply Java classes. This means JSP supports the same modularity, reusability, platform-independence, and access to Java APIs that Java programming supports.
David Markley 是Terra Lycos 公司的一位軟件工程經(jīng)理。 他兼職編寫游戲軟件，其中以 Hextris 最為出名。 他希望一天到活在Hobbit hole中 ("他們環(huán)境非常友好,難道你不知道嗎……"。)
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選擇一個(gè)服務(wù)器語(yǔ)言過(guò)去一直容易。 過(guò)去,CGI 是唯一的腳本語(yǔ)言選項(xiàng)。大膽的開(kāi)發(fā)者可以寫他們自己的服務(wù)器擴(kuò)充，但是很少有人決定挑戰(zhàn)，而且在這二個(gè)選擇項(xiàng) (效率低的 CGI 腳本和服務(wù)器擴(kuò)展的極端復(fù)雜) 之間的間隙是極大的。
微軟公司嘗試用動(dòng)態(tài)服務(wù)器網(wǎng)頁(yè) (Active Server Page 即ASP)技術(shù)來(lái)填補(bǔ)這個(gè)空隙, 它允許開(kāi)發(fā)者使用簡(jiǎn)單的腳本程序訪問(wèn)服務(wù)器和它的擴(kuò)充。但是ASP給你一個(gè)有效率的方法返回動(dòng)態(tài)的內(nèi)容,它本質(zhì)上限制你只能在微軟公司的平臺(tái)上才能工作，而且甚至最簡(jiǎn)單的腳本錯(cuò)誤能引起服務(wù)器崩潰或者癱瘓,使你的網(wǎng)站不能運(yùn)行。
顯然地，對(duì)ASP作出反應(yīng)，Sun公司向世界推出了JavaServerPage(即JSP) 技術(shù),完全地建立在Sun公司的最通俗的Java語(yǔ)言編程基礎(chǔ)上，而且給開(kāi)發(fā)者創(chuàng)造一個(gè)輕松的類似腳本的Java開(kāi)發(fā)環(huán)境。 其實(shí)， JSP 頁(yè)被動(dòng)態(tài)地裝載入 了Servlets 之內(nèi), 一種Java類。 這意謂著JSP 支持所有Java支持的特性：模塊化， 可重復(fù)使用性，平臺(tái)無(wú)關(guān)性和對(duì)Java API的存取訪問(wèn)。