【正文】 you just put the image in the directory for Web resources (., two levels up from WEB。s Java version—the server39。t understand servlet programming. 3, Some tasks are better acplished by servlets than by JSP. JSP is good at generating pages that consist of large sections of fairly well structured HTML or other character data. Servlets are better for generating binary data, building pages with highly variable structure, and performing tasks (such as redirection) that involve little or no output. 4, Some tasks are better acplished by a bination of servlets and JSP than by either servlets or JSP alone. Versus JavaScript JavaScript, which is pletely distinct from the Java programming language, is normally used to dynamically generate HTML on the client, building parts of the Web page as the browser loads the document. This is a useful capability and does not normally overlap with the capabilities of JSP (which runs only on the server). JSP pages still include SCRIPT tags for JavaScript, just as normal HTML pages do. In fact, JSP can even be used to dynamically generate the JavaScript that will be sent to the client. So, JavaScript is not a peting technology。t understand how JSP works without understanding servlets. 2, JSP consists of static HTML, specialpurpose JSP tags, and Java code. What kind of Java code? Servlet code! You can39。t provide any capabilities that couldn39。s C language is very well designed and is similar to Java, fewer programmers are familiar with either the core C syntax or the many auxiliary libraries. In addition, many developers still use the original version of ASP. With this version, JSP has a clear advantage for the dynamic code. With JSP, the dynamic part is written in Java, not VBScript or another ASPspecific language, so JSP is more powerful and better suited to plex applications that require reusable ponents.You could make the same argument when paring JSP to the previous version of ColdFusion。 you aren39。在此也衷心感謝為評閱本論文而付出辛勤勞動的各位專家和學者！外文資料原文Overview of JSP Technology Benefits of JSP JSP pages are translated into servlets. So, fundamentally, any task JSP pages can perform could also be acplished by servlets. However, this underlying equivalence does not mean that servlets and JSP pages are equally appropriate in all scenarios. The issue is not the power of the technology, it is the convenience, productivity, and maintainability of one or the other. After all, anything you can do on a particular puter platform in the Java programming language you could also do in assembly language. But it still matters which you choose. JSP provides the following benefits over servlets alone:? It is easier to write and maintain the HTML. Your static code is ordinary HTML: no extra backslashes, no double quotes, and no lurking Java syntax.? You can use standard Website development tools. Even HTML tools that know nothing about JSP can be used because they simply ignore the JSP tags.? You can divide up your development team. The Java programmers can work on the dynamic code. The Web developers can concentrate on the presentation layer. On large projects, this division is very important. Depending on the size of your team and the plexity of your project, you can enforce a weaker or stronger separation between the static HTML and the dynamic content. Now, this discussion is not to say that you should stop using servlets and use only JSP instead. By no means. Almost all projects will use both. For some requests in your project, you will use servlets. For others, you will use JSP. For still others, you will bine them with the MVC architecture . You want the appropriate tool for the job, and servlets, by themselves, do not plete your toolkit. Advantages of JSP Over Competing Technologies A number of years ago, Marty was invited to attend a small 20person industry roundtable discussion on software technology. Sitting in the seat next to Marty was James Gosling, inventor of the Java programming language. Sitting several seats away was a highlevel manager from a very large software pany in Redmond, Washington. During the discussion, the moderator brought up the subject of Jini, which at that time was a new Java technology. The moderator asked the manager what he thought of it, and the manager responded that it was too early to tell, but that it seemed to be an excellent idea. He went on to say that they would keep an eye on it, and if it seemed to be catching on, they would follow his pany39。另外，我還要衷心感謝在這幾年來所有為教導我付出過辛勤汗水的老師們，你們孜孜不倦的教誨不但讓我學到了很多計算機專業(yè)方面的知識，而且培養(yǎng)我養(yǎng)成了好的學習方法，還有就是在他們身上學到了做人處事的道理，在此我對他們表示深深的感謝。她無論在理論上還是在實踐中，都給與我極大的幫助，使我得到很大的提高，這對于我以后的工作和學習都有一定的幫助，在此真心的感謝她給予我耐心的輔導。在本次畢業(yè)設(shè)計中，我從我的畢業(yè)設(shè)計指導老師***老師身上學到了很多東西。相信本學生課程信息管理系統(tǒng)是一套中小學校在日常管理中必不可少的管理軟件，通過開發(fā)這個系統(tǒng)，我掌握了的項本過程，了解了的基本知識鞏固了我對JSP的學習，但在這次畢業(yè)設(shè)計中的最大收獲并不是掌握這幾門開發(fā)工具的應(yīng)用，而是學會了設(shè)計系統(tǒng)的思維方法，以及與同學們之間相互幫助的精神。當前網(wǎng)絡(luò)在學生管理系統(tǒng)中的應(yīng)用正在興起，所以基于網(wǎng)絡(luò)的課程管理系統(tǒng)必然是當前乃至未來的重要發(fā)展方向。因此，該系統(tǒng)必然會存在一些缺陷和不足。系統(tǒng)安全保密性也較好。但有可能占用更多的數(shù)據(jù)存儲空間，權(quán)衡措施由用戶來決定。在用戶使用錯誤的數(shù)據(jù)或訪問沒有權(quán)限的數(shù)據(jù)后，系統(tǒng)給出提示：“對不起，你非法使用數(shù)據(jù)，沒有權(quán)限！”而且用戶的密碼管理可以允許用戶修改自己的密碼，不允許用戶的匿名登錄。 11） 評價 以上所有的模塊測試過程都要求系統(tǒng)能在用戶輸入出錯時給出正確的相應(yīng)并不影響到數(shù)據(jù)的安全與完整性。要求系統(tǒng)在遇到這些情況時能給出正確的錯誤提示。 9）設(shè)置年級課程的測試 該測試的目的是保證設(shè)置年級課程信息的正確性與在數(shù)據(jù)輸入不正確時的容錯與糾錯性。 具體通過在修改課程信息窗口中輸入空的課程號,已存在的課程號,來檢測系統(tǒng)的出錯運行情況。要求系統(tǒng)在遇到這些情況時能給出正確的錯誤提示。 7）添加課程信息的測試 該測試的目的是保證添加課程信息窗口的正確性與在數(shù)據(jù)輸入不正確時的容錯與糾錯性。 具體通過在查詢課程的查詢方式框中輸入空的學號,空的姓名,或者空的班號,來檢測系統(tǒng)的出錯運行情況。要求系統(tǒng)在遇到這些情況時能給出正確的錯誤提示。 5）修改課程信息的測試 該測試的目的是保證修改課程信息的正確性與在數(shù)據(jù)輸入不正確時的容錯與糾錯性。 具體通過在添加課程信息框中輸入空的學號,已存在的學號，或者錯誤的日期格式,來檢測系統(tǒng)的出錯運行情況。要求系統(tǒng)在遇到這些情況時能給出正確的錯誤提示。 3）修改用戶密碼的測試 該測試的目的是保證修改用戶密碼窗口的正確性與在數(shù)據(jù)輸入不正確時的容錯與糾錯性。 具體通過在添加記錄框中輸入重復的用戶名，空用戶名和密碼來檢測系統(tǒng)的出錯運行情況。要求系統(tǒng)在遇到這些情況時能給出正確的錯誤提示。各測試項目說明 1）用戶登錄窗口的測試 該測試的目的是保證登陸窗口的正確性與在錯誤發(fā)生時的容錯與糾錯性。而且應(yīng)用戶的特殊需求軟件在完成后，隨時滿足用戶的使用要求。本功能的實現(xiàn)極大的方便了學校管理和教務(wù)管理的功能，因此管理員模塊應(yīng)該為學校的教學和管理來說都是起著非常重要的核心作用[6]。課程作業(yè)，學生可以看見自己所選的課程，發(fā)布的作業(yè)，能下載的作業(yè)，并能針對作業(yè)提交作業(yè)答案，提供下載作業(yè)的鏈接和為該作業(yè)提供答案的鏈接。課內(nèi)公告功能模塊需要顯示該登錄學生所選擇的課程，然后顯示每門課程下發(fā)布的所有公告。圖5－3教師發(fā)布課程公告界面圖5－4教師資源管理界面圖5－5教師發(fā)布作業(yè)界面：本模塊