基于web的學(xué)生選課系統(tǒng)—計(jì)算機(jī)畢業(yè)設(shè)計(jì)-資料下載頁

【導(dǎo)讀】本論文主要論述的是基于WEB的選課系統(tǒng)的系統(tǒng)維護(hù)模塊的設(shè)計(jì)與實(shí)現(xiàn)。設(shè)計(jì)本系統(tǒng)的目的是對(duì)選課信息進(jìn)行管理。份，數(shù)據(jù)還原，注銷等功能。系統(tǒng)在校園網(wǎng)上安全有效地運(yùn)作。之后根據(jù)需求提出了系統(tǒng)管理模塊的總體設(shè)。計(jì)方案，并據(jù)此進(jìn)行了詳細(xì)設(shè)計(jì)和編碼實(shí)現(xiàn)。代碼中通過使用進(jìn)程中的Session、盡量使用存儲(chǔ)過程和盡量。減少數(shù)據(jù)庫(kù)連接的打開時(shí)間等手段來提高性能。系統(tǒng)開發(fā)完成后，對(duì)課題

　　

【正文】 較大難度、需要重點(diǎn)考慮的問題。 結(jié)論 29 結(jié)論 通過最后兩個(gè)多月的畢業(yè)設(shè)計(jì)，我對(duì)使用 開發(fā)頁面的能力有了很大提高。基本實(shí)現(xiàn)了學(xué)生選課系統(tǒng)所期望的功能，驗(yàn)證也得到了預(yù)期的效果。 由于在此之前對(duì)于 和網(wǎng)頁知識(shí)的了解太少，從書本上學(xué)到的知識(shí)有限，所以從一開始就碰到許多困難。例如一開始我使用的是框架結(jié)構(gòu)，由于有許多的局限性，又想使用 中的頁面繼承，也沒有得到解決，最后使用 table 和 panel 控件解決了同一頁面鏈接不同的頁面。系統(tǒng)還原上也出現(xiàn)問題，由于系統(tǒng)正在使用，還原會(huì)出現(xiàn)排它訪問，導(dǎo)致不能進(jìn)行還原，這就必修斷開與數(shù)據(jù)庫(kù)的連結(jié)，到 master 數(shù)據(jù)庫(kù)中進(jìn)行還原，需要?dú)⑺老到y(tǒng)所在數(shù)據(jù)庫(kù)的進(jìn)程號(hào)，另外在網(wǎng)頁中腳本代碼與 html 代碼之間的關(guān)系上都有過很大的困難，通過在網(wǎng)上尋找有關(guān)資料以及 同學(xué)的幫助下最后都得到了解決。 在整個(gè)設(shè)計(jì)階段感受最為深刻的是掌握學(xué)習(xí)的方式和解決問題的方法。雖然面臨的信息很多，但是如何從大量的信息中篩選出所需的信息，有用的信息，才是解決問題的關(guān)鍵。 參考文獻(xiàn) 30 參考文獻(xiàn) [1] 羅斌 . Visual Basic NET 精彩編程實(shí)例集錦 .中國(guó)水利水電出版社 , [2] 高春蓉 . 與 從入門到精通 .電子工業(yè)出版社 , [3] 楊浩 . 高級(jí)編程 .清華大學(xué)出版社 , [4] 尚俊杰 . 程序設(shè) 計(jì) .清華大學(xué)出版社 , [5] 李偉紅 .SQL Server2020 數(shù)據(jù)庫(kù)及應(yīng)用 .中國(guó)水利水電出版社 , [6] 龍懷冰 .SQL Server 2020 實(shí)用開發(fā)教程 .人民郵電出版社 , [7] Dan Kent . Evolution .Sams , [8] Mahesh Chand, David Talbot .Applied : Building DataDriven Solutions . Apress, [9] John Kauffman, Thiru Thangarathinam .Beginning Databases Beta Preview . Wrox, [10] 李存斌 .SQL Server 2020 實(shí)用教程 .中國(guó)水利水電出版社 , [11] 劉小偉 . 與 SQL Server 網(wǎng)站開發(fā)實(shí)用教程 .電子工業(yè)出版社 , [12] 戴志誠(chéng) .SQL Server 2020 數(shù)據(jù)庫(kù)系統(tǒng)開發(fā)與實(shí)例 .電子工業(yè)出版社 , [13] 賓晟 . 網(wǎng)絡(luò)程序開發(fā)原理與實(shí)踐教程 .電子工業(yè)出版社 , [14] Thiru Thangarathinam .Professional Databases. wrox, [15] (美 )Joseph ,Paul . SQL Server開發(fā)指南 .電子出版社 , [16] 宋昆 ,李嚴(yán) . SQL Server數(shù)據(jù)庫(kù)開發(fā)實(shí)例解析 .機(jī)械工業(yè)出版社 , [17] 王穎 ,李敏業(yè) . Visual Basic + SQL Server數(shù)據(jù)庫(kù)應(yīng)用實(shí)例完全解析 .人民郵電出版社 , [18] 董國(guó)平 ,顏志軍 . Visual Basic數(shù)據(jù)庫(kù)開發(fā)典型模塊與實(shí)例精講 .電子工業(yè)出版社 , 第四章 系統(tǒng)實(shí)現(xiàn)與驗(yàn)證 31 致謝 歷經(jīng)兩個(gè)月的努力，在老師的悉心指導(dǎo)下，我們終于順利完成了畢業(yè)設(shè)計(jì)。這次畢業(yè)設(shè)計(jì)是對(duì)我們大學(xué)學(xué)習(xí)成果的考驗(yàn)和總結(jié)，是我們實(shí)現(xiàn)理想之前的一次實(shí)戰(zhàn)，一次磨練，一次提高。從而讓我們對(duì)自己有了一個(gè)更加準(zhǔn)確的認(rèn)識(shí)，對(duì)專業(yè)知識(shí)有了一個(gè)更加融會(huì)貫通的理解，更為 下一階段的學(xué)習(xí)打下了一個(gè)重要的基礎(chǔ)。 在此，我們首先要向各位領(lǐng)導(dǎo)，老師致以最衷心的謝意！我們特別要感謝的是我們的畢業(yè)設(shè)計(jì)指導(dǎo)老師―王奉元老師和張冬梅老師，不辭辛苦的指導(dǎo)我們，啟發(fā)我們，幫助我們查找資料，為我們解答疑惑！在這里請(qǐng)讓我們懷著最大的誠(chéng)意道一聲“您辛苦了，衷心地謝謝您！” ,感謝電子信息系的全體老師和同學(xué)多年來的關(guān)心和支持！ 第四章 系統(tǒng)實(shí)現(xiàn)與驗(yàn)證 32 r, but fainter now and desperately the horn was blow ing. Fierce and shrill rose the yells of the Orcs, and suddenly the horncalls ceased. Aragorn raced down the last slope, but before he could reach the hill39。s foot, the sounds died away。 and as he turned to the left and ran towards them they retreated, until at last he could hear them no more. Drawing his bright sword and crying _Elendil! Elendil!_ he crashed through the trees. A mile, maybe, from Parth Galen in a little glade not far from the la ke he found Boromir. He was sitting with his back to a great tree, as if he was resting. But Aragorn saw that he was pierced with many blackfeathered arrows。 his sword was still in his hand, but it was broken near the hilt。 his horn cloven in two was at his side. Many Orcs lay slain, piled all about him and at his feet. Aragorn knelt beside him. Boromir opened his eyes and strove to speak. At last slow words came. 39。I tried to ta ke the Ring from Frodo 39。 he said. 39。I am sorry. I have paid.39。 His glance strayed to his fallen enemies。 twenty at least lay there. 39。They have gone: the Halflings: the Orcs have taken them. I think they are not dead. Orcs bound them.39。 He paused and his eyes closed wearily. Afte r a moment he spoke again. 39。Farewell, Aragorn! Go to Minas Tirith and save my people! I have failed.39。 39。No!39。 said Aragorn, taking his hand and kissing his brow. 39。You have conquered. Few have gained such a victory. Be at peace! Minas Tirith shall not fall!39。 Boromir smiled. 39。Which way did they go? Was Frodo there?39。 said Aragorn. But Boromir did not speak again. 39。Alas!39。 said Aragorn. 39。Thus passes the heir of Dehor, L ord of the Tower of Guard! This is a bitter end. Now the Company is all in ruin. It is I that have failed. Vain was Gandalf39。s trust in me. What shall I do now? Boromir has laid it on me to go to Minas Tirith, and my heart desires it。 but where are the Ring and the Bearer? How shall I find them and save the Quest from disaster?39。 He knelt for a while, bent with weeping, still clasping Boromir39。s hand. So it was that Legolas and Gimli found him. They came from the western slopes of the hill, silently, creeping through the trees as if they were hunting. G imli had his axe in hand, and Legolas his long knife: all his arrows were spent. When they came into the glade they halted in amazement。 and then they stood a moment with heads bowed in grief, for it seemed to them plain what had happened. 39。Alas!39。 said Legolas, ing to Aragorn39。s side. 39。We have hunted and slain many Orcs in the woods, but we should have been of more use here. We came when we heard the hornbut too late, it seems. I fear you have taken deadly hurt.39。 39。Boromir is dead,39。 said Aragorn. 39。I am unscathed, for I was not here with him. He fell defending the hobbits, while I was awa y upon the hill.39。 39。The hobbits!39。 cried Gimli 39。Where are they then? Where is Frodo?39。 39。I do not know,39。 answered Aragorn wearily. 39。Before he died Boromir told me that the Orcs had bound them。 he did not think tha t they were dead. I sent him to follow Merry and Pippin。 but I did not ask him if Frodo or Sam were with him: not until it was too late. All that I have done today has gone amiss. What is to be done now?39。 39。First we must tend the fallen,39。 said Legolas. 39。We cannot leave him lying like carrion among these foul Orcs.39。 39。But we must be swift,39。 said Gimli. 39。He would not wish us to linger. We must follow the Orcs, if there is hope that any of our Company are living prisoners.39。 39。But we do not know whether the Ringbearer is with them or not 39。 said Aragorn. 39。Are we to abandon him? Must we not seek him first? An evil choice is now before us!39。 39。Then let us do first what we must do,39。 said Legolas. 39。We have not the time or the tools to bury our rade fitly, or to raise a mound over him. A cairn we might build.39。 39。The labour would b