├── .gitignore ├── web ├── images │ ├── bg.jpg │ ├── nam.jpg │ ├── rss.png │ ├── logo.jpg │ ├── banner.jpg │ ├── favicon.ico │ ├── gengduo.jpg │ ├── jyjgli.jpg │ ├── sitemap.png │ ├── yaowenbg.jpg │ └── yaowenxian.jpg ├── temp.jsp ├── css │ └── style.css ├── index.jsp └── js │ └── jquery-3.2.1.min.js ├── CSU.iml ├── src └── HelloForm.java └── README.md /.gitignore: -------------------------------------------------------------------------------- 1 | # ignore 2 | .idea 3 | web/WEB-INF -------------------------------------------------------------------------------- /web/images/bg.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/bg.jpg -------------------------------------------------------------------------------- /web/images/nam.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/nam.jpg -------------------------------------------------------------------------------- /web/images/rss.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/rss.png -------------------------------------------------------------------------------- /web/images/logo.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/logo.jpg -------------------------------------------------------------------------------- /web/images/banner.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/banner.jpg -------------------------------------------------------------------------------- /web/images/favicon.ico: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/favicon.ico -------------------------------------------------------------------------------- /web/images/gengduo.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/gengduo.jpg -------------------------------------------------------------------------------- /web/images/jyjgli.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/jyjgli.jpg -------------------------------------------------------------------------------- /web/images/sitemap.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/sitemap.png -------------------------------------------------------------------------------- /web/images/yaowenbg.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/yaowenbg.jpg -------------------------------------------------------------------------------- /web/images/yaowenxian.jpg: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/Shuai-Xie/javaweb-csu/HEAD/web/images/yaowenxian.jpg -------------------------------------------------------------------------------- /web/temp.jsp: -------------------------------------------------------------------------------- 1 | <%@ page import="java.sql.ResultSet" %><%-- 2 | Created by IntelliJ IDEA. 3 | User: shuai 4 | Date: 2017/6/20 5 | Time: 18:04 6 | To change this template use File | Settings | File Templates. 7 | --%> 8 | <%@ page contentType="text/html;charset=UTF-8" language="java" %> 9 | 10 | 11 | 学号 12 | 课程 13 | 成绩 14 | 登记时间 15 | 16 | <% 17 | ResultSet rs = (ResultSet) request.getAttribute("data"); 18 | 19 | // 展开结果集数据库 20 | try { 21 | while (rs.next()) { 22 | String sNo = rs.getString("no"); 23 | String course = rs.getString("course"); 24 | String grade = rs.getString("grade"); 25 | String registerTime = rs.getString("registerTime"); 26 | 27 | // 输出数据 28 | out.println(""); 29 | out.println("" + sNo + ""); 30 | out.println("" + course + ""); 31 | out.println("" + grade + ""); 32 | out.println("" + registerTime + ""); 33 | out.println(""); 34 | 35 | } 36 | } catch (Exception e) { 37 | e.printStackTrace(); 38 | } 39 | 40 | %> 41 | -------------------------------------------------------------------------------- /CSU.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | -------------------------------------------------------------------------------- /src/HelloForm.java: -------------------------------------------------------------------------------- 1 | import java.io.IOException; 2 | import java.io.PrintWriter; 3 | import java.sql.*; 4 | 5 | import javax.servlet.RequestDispatcher; 6 | import javax.servlet.ServletException; 7 | import javax.servlet.annotation.WebServlet; 8 | import javax.servlet.http.HttpServlet; 9 | import javax.servlet.http.HttpServletRequest; 10 | import javax.servlet.http.HttpServletResponse; 11 | 12 | /** 13 | * Created by shuai 14 | * on 2017/6/10. 15 | */ 16 | @WebServlet("/HelloForm") 17 | public class HelloForm extends HttpServlet { 18 | 19 | private static final long serialVersionUID = 1; 20 | 21 | // JDBC 驱动名及数据库 URL 22 | private static final String JDBC_DRIVER = "com.mysql.jdbc.Driver"; 23 | private static final String DB_URL = "jdbc:mysql://localhost:3306/csu"; // 同DataGrip 24 | 25 | // 数据库的用户名与密码，需要根据自己的设置 26 | private static final String USER = "root"; 27 | private static final String PASS = "shuai"; 28 | 29 | protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 30 | doGet(request, response); 31 | } 32 | 33 | protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 34 | 35 | // 获取输入的学生姓名 36 | String name = new String(request.getParameter("name").getBytes(), "UTF-8"); 37 | 38 | try { 39 | // 注册 JDBC 驱动器 40 | Class.forName(JDBC_DRIVER); 41 | 42 | // 打开一个连接 43 | Connection conn = DriverManager.getConnection(DB_URL, USER, PASS); 44 | 45 | // 执行sql查询 46 | Statement stmt = conn.createStatement(); 47 | 48 | // String sql = "SELECT * FROM Grade WHERE no = \"0902140133\"; "; 49 | 50 | // 注意String要加引号 51 | String sql = "SELECT * FROM Grade " + 52 | "WHERE no = (SELECT sNo FROM Student WHERE sName = \"" + name + "\");"; 53 | 54 | // 执行查询得到结果集 55 | ResultSet rs = stmt.executeQuery(sql); 56 | 57 | // 向jsp页面传递数据 58 | RequestDispatcher rd = request.getRequestDispatcher("temp.jsp"); 59 | request.setAttribute("data", rs); 60 | rd.forward(request, response); 61 | 62 | } catch (Exception e) { 63 | e.printStackTrace(); 64 | } 65 | } 66 | 67 | } 68 | -------------------------------------------------------------------------------- /web/css/style.css: -------------------------------------------------------------------------------- 1 | * { /*清除默认*/ 2 | padding: 0; 3 | margin: 0; 4 | } 5 | 6 | body { 7 | font-family: Arial, Helvetica, sans-serif; 8 | font-size: 12px; /*子标签中如果不指定font-size，就继承body的12px*/ 9 | background: url(../images/bg.jpg) repeat-x; 10 | /*repeat-x: 只在x轴上重复，比图片高度大的部分仍是默认的白色*/ 11 | /*repeat-y: 只在y轴上重复，网页最左边竖着排列2个bg*/ 12 | } 13 | 14 | /*顶部*/ 15 | .top { 16 | width: 950px; 17 | height: 112px; 18 | margin: 0 auto; /*左右居中*/ 19 | } 20 | 21 | img { 22 | border: 0; 23 | } 24 | 25 | .auto { 26 | margin: 0 auto; 27 | } 28 | 29 | /*font left*/ 30 | .fl { 31 | float: left; 32 | display: inline; 33 | } 34 | 35 | /*font right*/ 36 | .fr { 37 | float: right; 38 | display: inline; 39 | } 40 | 41 | /*logo*/ 42 | .csu-logo { 43 | width: 326px; 44 | height: 112px; 45 | float: left; 46 | } 47 | 48 | .top-right { 49 | width: 460px; 50 | height: 112px; 51 | float: right; 52 | position: relative; 53 | } 54 | 55 | .right-line1 { 56 | width: 460px; 57 | height: 38px; 58 | margin-left: 5px; 59 | } 60 | 61 | /*未来学生 在校学生 教职员工 校友校董*/ 62 | .ycszb { 63 | width: 250px; 64 | height: 38px; 65 | float: left; 66 | line-height: 38px; 67 | } 68 | 69 | /*未来学生 在校学生 教职员工 校友校董*/ 70 | a.ld { 71 | font-size: 12px; 72 | text-decoration: none; /*去掉超链接格式*/ 73 | color: #FFFFFF; 74 | padding: 0 4px; /*左右4px*/ 75 | } 76 | 77 | /*hover选择器选中ld元素，设置悬停字体颜色*/ 78 | a.ld:hover { 79 | color: #fe7000; 80 | } 81 | 82 | /*教育机构 研究机构*/ 83 | #wrap { 84 | width: 208px; 85 | float: right; 86 | } 87 | 88 | #main_nav { 89 | height: 30px; 90 | overflow: visible; 91 | padding-top: 8px; 92 | } 93 | 94 | /*2个li*/ 95 | /*教育机构 研究机构*/ 96 | #main_nav ul { 97 | font-size: 13px; 98 | list-style: none; 99 | } 100 | 101 | /*教育机构 研究机构*/ 102 | /*li属性样式*/ 103 | #main_nav li { 104 | float: left; /*使得2个li可以浮动排在一行*/ 105 | margin-right: 4px; 106 | width: 94px; 107 | height: 21px; 108 | background: url(../images/jyjgli.jpg); /*背景图*/ 109 | position: relative; 110 | z-index: 999; /*设置堆叠顺序*/ 111 | text-align: center; 112 | } 113 | 114 | /*li中包含的超链接*/ 115 | /*教育机构*/ 116 | #main_nav li a { 117 | color: #555; 118 | display: block; 119 | /*与li等宽高*/ 120 | /*width: 94px; */ 121 | /*height: 21px;*/ 122 | text-decoration: none; 123 | font-size: 12px; 124 | line-height: 21px; 125 | } 126 | 127 | /*li ul li a*/ 128 | /*文学与新闻传播学院*/ 129 | #main_nav li ul li a { 130 | font-size: 12px; 131 | width: 145px; 132 | height: 25px; 133 | line-height: 25px; 134 | margin: 0; 135 | color: #fff; 136 | } 137 | 138 | /*教育机构*/ 139 | #main_nav li ul.jyjgli { 140 | position: absolute; 141 | top: 21px; 142 | right: 0; 143 | width: 350px; 144 | height: 410px; 145 | padding: 15px 5px 15px 18px; 146 | background: #396f98; 147 | border: 1px solid white; 148 | display: none; 149 | z-index: 999; 150 | } 151 | 152 | /*研究机构*/ 153 | #main_nav li ul.yjjgli { 154 | position: absolute; 155 | top: 21px; 156 | right: 0; 157 | width: 240px; 158 | height: 366px; 159 | padding: 15px 8px 15px 16px; 160 | background: #396f98; 161 | border: 1px solid white; 162 | display: none; 163 | z-index: 999; 164 | } 165 | 166 | /*hover需要上下级*/ 167 | /*li:hover ul*/ 168 | #main_nav li:hover ul { 169 | display: block; 170 | } 171 | 172 | #main_nav li ul.jyjgli li { 173 | float: left; 174 | text-align: left; 175 | background: none; 176 | width: 145px; 177 | height: 25px; 178 | border-bottom: #fff 1px solid; 179 | margin-right: 12px; 180 | } 181 | 182 | #main_nav li ul.yjjgli li { 183 | float: left; 184 | text-align: left; 185 | background: none; 186 | width: 210px; 187 | height: 25px; 188 | border-bottom: #fff 1px solid; 189 | margin-right: 12px; 190 | } 191 | 192 | /*li中超链接*/ 193 | #main_nav li ul.jyjgli li a { 194 | font-size: 12px; 195 | width: 145px; 196 | height: 25px; 197 | line-height: 25px; 198 | margin: 0; 199 | color: #fff; 200 | } 201 | 202 | #main_nav li ul.jyjgli li a:hover { 203 | color: #FF8F00; 204 | } 205 | 206 | #main_nav li ul.yjjgli li a { 207 | font-size: 12px; 208 | width: 210px; 209 | height: 25px; 210 | line-height: 25px; 211 | margin: 0; 212 | color: #fff; 213 | } 214 | 215 | #main_nav li ul.yjjgli li a:hover { 216 | color: #FF8F00; 217 | } 218 | 219 | /*信息门户| 中南e行| 邮件系统| 图书馆| 简| 繁| English*/ 220 | .right-line2 { 221 | font-size: 12px; 222 | width: 370px; 223 | height: 32px; 224 | line-height: 32px; 225 | /*border: 1px solid green;*/ 226 | float: right; 227 | color: #fff; 228 | } 229 | 230 | .clear { 231 | clear: both; /*图像的左右两侧均不允许出现浮动元素*/ 232 | } 233 | 234 | /*简| 繁| English*/ 235 | a.lt { 236 | text-decoration: none; 237 | color: #FFFFFF; 238 | padding: 0 6px; 239 | } 240 | 241 | a.lt:hover { 242 | color: #fe7000; 243 | } 244 | 245 | .search { 246 | width: 230px; 247 | height: 28px; 248 | background: #ffffff; 249 | position: absolute; 250 | right: 0; /*靠右*/ 251 | bottom: 10px; 252 | left: 220px; 253 | } 254 | 255 | /*导航栏背景*/ 256 | .nam { 257 | width: 948px; 258 | height: 32px; 259 | background: url(../images/nam.jpg) repeat-x; /*1*36*/ 260 | border-left: #d7d7d7 1px solid; 261 | border-right: #d7d7d7 1px solid; 262 | margin: 0 auto; 263 | padding: 1px 0 3px 0; 264 | } 265 | 266 | /*导航栏内容设置*/ 267 | #nav { 268 | width: 943px; 269 | height: 32px; 270 | padding: 0 0 0 5px; 271 | margin: 0; 272 | list-style: none; 273 | } 274 | 275 | /*设置下拉菜单*/ 276 | .dropdown { 277 | float: left; 278 | } 279 | 280 | /*把a转化为块标签*/ 281 | /*对应 学校概况*/ 282 | .dropdown a { 283 | line-height: 32px; 284 | font-size: 14px; 285 | font-weight: bold; 286 | width: 102px; 287 | height: 32px; 288 | display: block; 289 | text-align: center; 290 | color: #003174; 291 | text-decoration: none; 292 | } 293 | 294 | .dropdown-content { 295 | display: none; /*隐藏下拉菜单的内容*/ 296 | position: absolute; 297 | background-color: #f9f9f9; 298 | list-style: none; 299 | width: 115px; 300 | font-size: 14px; 301 | line-height: 32px; 302 | font-weight: 100; 303 | } 304 | 305 | /*hover设置光标悬停未点击之前的样式*/ 306 | .dropdown:hover .dropdown-content { 307 | display: block; 308 | } 309 | 310 | .dropdown-content li { 311 | padding: 0; 312 | width: 115px; 313 | margin: 0 auto; 314 | background: #003174; 315 | font-size: 14px; 316 | line-height: 32px; 317 | font-weight: 100; 318 | } 319 | 320 | .dropdown-content li a { 321 | text-decoration: none; 322 | color: #FFFFFF; 323 | font-size: 14px; 324 | display: block; 325 | width: 115px; 326 | line-height: 32px; 327 | font-weight: 100; 328 | } 329 | 330 | .dropdown-content li a:hover { 331 | font-weight: 100; 332 | color: #FFFF00; 333 | text-decoration: none; 334 | } 335 | 336 | /*横幅图片*/ 337 | .banner { 338 | width: 950px; 339 | height: 266px; 340 | margin: 0 auto; 341 | } 342 | 343 | #main { 344 | width: 950px; 345 | margin: 0 auto; 346 | padding: 0; 347 | background: #FFFFFF; 348 | } 349 | 350 | /*中南要闻*/ 351 | .yaowen { 352 | width: 950px; 353 | margin: 10px auto 0 auto; 354 | font-size: 16px; 355 | color: #10368b; 356 | font-weight: bold; 357 | } 358 | 359 | .gengduo { 360 | background: url(../images/gengduo.jpg) no-repeat; 361 | width: 48px; 362 | height: 18px; 363 | } 364 | 365 | .xian { 366 | background: url(../images/yaowenxian.jpg) repeat-x; 367 | height: 3px; 368 | margin-top: 7px; 369 | } 370 | 371 | .zhongnanyaowenxiu { 372 | height: 180px; 373 | background: url(../images/yaowenbg.jpg) no-repeat 0 0; 374 | margin: 0 auto; 375 | padding-top: 7px; 376 | overflow: hidden; 377 | } 378 | 379 | .zhongnanyaowenxiu ul { 380 | list-style: none; 381 | margin: 0; 382 | padding: 0; 383 | } 384 | 385 | .zhongnanyaowenxiu ul li { 386 | margin: 0; 387 | padding-right: 30px; 388 | height: 30px; 389 | line-height: 30px; /*180/6=30*/ 390 | vertical-align: bottom; 391 | font-size: 12px; 392 | float: left; 393 | width: 475px; /*父类main 950*/ 394 | padding-left: 25px; 395 | position: relative; 396 | overflow: hidden; /*如06*/ 397 | } 398 | 399 | .zhongnanyaowenxiu ul li span { 400 | position: absolute; /*行内元素一般与绝对定位合用*/ 401 | right: 10px; 402 | color: #545454; 403 | top: 0; 404 | } 405 | 406 | .zhongnanyaowenxiu ul li a { 407 | text-decoration: none; 408 | color: #545454; 409 | } 410 | 411 | .zhongnanyaowenxiu ul li a:hover { 412 | color: #fe7000; 413 | } 414 | 415 | /*底部*/ 416 | #foot { 417 | width: 100%; 418 | height: 50px; 419 | padding: 0; 420 | background: #0f70b4; 421 | position: fixed; 422 | bottom: 0; 423 | } 424 | 425 | .foot { 426 | width: 950px; 427 | margin: 0 auto; 428 | height: 50px; 429 | padding: 0; 430 | color: #FFFFFF; 431 | line-height: 50px; 432 | } 433 | 434 | .foot_l { 435 | height: 50px; 436 | margin-left: 10px; 437 | float: left; 438 | } 439 | 440 | .foot_m { 441 | width: auto; 442 | height: 50px; 443 | float: left;; 444 | } 445 | 446 | .foot_r { 447 | width: auto; 448 | height: 50px; 449 | float: right; 450 | margin-right: 10px; 451 | } -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | [Web课程设计 - 中南大学主页 - 简书](http://www.jianshu.com/p/711f2ea9b182) 2 | 3 | # 实验一 4 | ## 一、实验内容 5 | 制作一个与中南大学主页类似的页面： 6 | 1. 熟悉html、CSS以及JavaScript使用，完成网页设计。CSS和JS文件单独书写。 7 | 1. 版面排版和内容需基本接近学校主页 8 | 1. 只需完成首页的制作，无需做二级页面 9 | 1. “教育机构”需有类似的弹出窗口菜单 10 | 1. “首页”等菜单需要有类似的弹出菜单 11 | 12 | ## 二、实验设计 13 | ### 2.1 head 标签内容 14 | head 标签内通常会由 title，meta，link，script 标签。 15 | - title 是网页标题栏名称； 16 | - meta 提供有关页面的元信息，比如作者，页面字符格式等； 17 | - link 可以链接标题栏要显示的图标： 18 | images/favicon.ico (icon文件在线生成生成器转化图片) 19 | link也可以链接css文件路径，自定义的css和bootstrap的css； 20 | - script 写入自己的 js 文件或者 src 链接的 jQuery 文件。 21 | 22 | 23 | ```html 24 | 25 | 中南大学 26 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | ``` 42 | 43 | ### 2.2 页面布局 44 | 45 | 46 | ![](http://upload-images.jianshu.io/upload_images/1877813-ca76e157636217d2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 47 | 48 | 整体页面自上而下分为 3 部分： 49 | 50 | |||| 51 | |:-:|:-:|:-:| 52 | |绿色框| div class = “top” |页面头部| 53 | |紫色框| div class = “main” |页面主体| 54 | |红色框| div class = “foot” |页面尾部| 55 | 56 | 57 | #### 2.2.1 页面头部 58 | 59 | ![](http://upload-images.jianshu.io/upload_images/1877813-be6dff2b53104fe8.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 60 | 61 | 左边中南大学矩形 logo，img 标签 62 | 63 | 右边内容分为3行 64 | - 第1行： 65 | 未来学生 在校学生 教职员工 校友校董 66 | 包含2个下拉列表（教育机构 研究机构） 67 | 68 | - 第2行： 69 | 信息门户| 中南e行| 邮件系统| 图书馆| 简| 繁| English 70 | 这些都是 a 标签，通过合理地设置字体大小和间距就可以做出这种效果 71 | 72 | - 第3行： 73 | 1个搜索框 74 | 75 | 通过设置浮动，使得左边的图片和右边的内容显示在一行。 76 | 77 | #### 2.2.2 页面主体 78 | 79 | 80 | ![](http://upload-images.jianshu.io/upload_images/1877813-4f9e3f61dcf68fff.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 81 | 82 | 主体部分自上而下分为 4 部分： 83 | 84 | ||| 85 | |:-:|:-:| 86 | |红色 |nav 导航栏包含8个选项 87 | |紫色 |banner 学校图片海报 88 | |蓝色 |中南要闻，2个 li 浮动显示 89 | |绿色 |学生信息查询 90 | 91 | #### 2.2.3 页面底部 92 | 93 | ![](http://upload-images.jianshu.io/upload_images/1877813-41b2ad4f76390466.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 94 | 95 | 页面底部蓝色的固定在浏览器底部，如果页面内容足够多，就不用设置 fixed 属性，底部的 bar 自动就在页面底部，效果也不错。 96 | 97 | div id = “foot” 对应的CSS 98 | 99 | ```css 100 | /*底部*/ 101 | #foot { 102 | width: 100%; 103 | height: 50px; 104 | padding: 0; 105 | background: #0f70b4; 106 | position: fixed; 107 | bottom: 0; 108 | } 109 | ``` 110 | 111 | ### 2.3 弹出子菜单 112 | 教育机构和首页栏目弹出菜单一样，将子菜单 ul 包括在上一级标签教育机构的 li 下面。 113 | 114 | ![](http://upload-images.jianshu.io/upload_images/1877813-b94577a8b8c415d3.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 115 | 116 | - 红色箭头指示隐藏的下拉列表 ul class="jyjgli" 117 | - 绿色箭头指示 ul 的父级标签 li id="eduqlink" 118 | 119 | 120 | ![](http://upload-images.jianshu.io/upload_images/1877813-477fe729529a8755.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 121 | 122 | 123 | 默认情况下 ul 的 display=none，当鼠标 hover 时，display=block 124 | 125 | ```css 126 | /*教育机构*/ 127 | #main_nav li ul.jyjgli { 128 | position: absolute; 129 | top: 21px; 130 | right: 0; 131 | width: 350px; 132 | height: 410px; 133 | padding: 15px 5px 15px 18px; 134 | background: #396f98; 135 | border: 1px solid white; 136 | display: none; 137 | z-index: 999; 138 | } 139 | 140 | /*hover需要上下级*/ 141 | /*li:hover ul*/ 142 | #main_nav li:hover ul { 143 | display: block; 144 | } 145 | ``` 146 | 147 | 同样，对于首页部分，也是这样的原理。 148 | 149 | 150 | ![](http://upload-images.jianshu.io/upload_images/1877813-dbc04798e6a89bb5.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 151 | 152 | - 红色 ul 对应子菜单 153 | - 绿色 li 对应父级标签 154 | 155 | 156 | ![](http://upload-images.jianshu.io/upload_images/1877813-d3af8e67a7a39024.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 157 | 158 | 对应的 css 159 | 160 | ```css 161 | .dropdown-content { 162 | display: none; /*隐藏下拉菜单的内容*/ 163 | position: absolute; 164 | background-color: #f9f9f9; 165 | list-style: none; 166 | width: 115px; 167 | font-size: 14px; 168 | line-height: 32px; 169 | font-weight: 100; 170 | } 171 | 172 | /*hover设置光标悬停未点击之前的样式*/ 173 | .dropdown:hover .dropdown-content { 174 | display: block; 175 | } 176 | ``` 177 | 178 | ### 2.4 导航条横向菜单 179 | 180 | ![](http://upload-images.jianshu.io/upload_images/1877813-c205b82c5b3b97dd.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 181 | 182 | 这个菜单基于 html 最原始的标签 ul 的。ul 默认的内容li时竖直排列的，通过设置 ul 和 li 的 float 等属性使得这些 li 标签横向排列。 183 | 184 | 对应的 css 185 | - "#nav对应ul 186 | - .dropdown对应ul下的li 187 | 188 | ```css 189 | /*导航栏内容设置*/ 190 | #nav { 191 | width: 943px; 192 | height: 32px; 193 | padding: 0 0 0 5px; 194 | margin: 0; 195 | list-style: none; 196 | } 197 | 198 | /*设置下拉菜单*/ 199 | .dropdown { 200 | float: left; 201 | } 202 | ``` 203 | 204 | # 实验二 205 | ## 一、实验内容 206 | 制作一个信息查询页面： 207 | 1. 在数据库（任选）中建两个数据表（学生信息表（学号、姓名、班级）和学生成绩表（学号、课程名称、成绩、成绩登记时间） 208 | 1. 页面中输入学生姓名点击搜索即可查询到该学生的所有成绩 209 | 1. 成绩以表格形式显示 210 | 1. 需使用Ajax技术 211 | 212 | ## 二、实验设计 213 | 214 | ### 2.1 建立数据库 215 | 216 | （1）Student 表 217 | ```sql 218 | -- auto-generated definition 219 | CREATE TABLE Student 220 | ( 221 | sNo VARCHAR(10) NOT NULL 222 | PRIMARY KEY, 223 | sName VARCHAR(32) NOT NULL, 224 | class VARCHAR(32) NOT NULL 225 | ); 226 | ``` 227 | 228 | 表中插入 3 行数据 229 | 230 | 231 | ![](http://upload-images.jianshu.io/upload_images/1877813-9b5ec8a6db0985a1.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 232 | 233 | 234 | （2）Grade 表 235 | 236 | ```sql 237 | -- auto-generated definition 238 | CREATE TABLE Grade 239 | ( 240 | no VARCHAR(10) NOT NULL, 241 | course VARCHAR(32) NULL, 242 | grade INT(10) NULL, 243 | registerTime DATE NULL, 244 | CONSTRAINT fk_sno 245 | FOREIGN KEY (no) REFERENCES csu.Student (sNo) 246 | ); 247 | 248 | CREATE INDEX fk_sno 249 | ON Grade (no); 250 | ``` 251 | 表中插入数据 252 | 253 | ![](http://upload-images.jianshu.io/upload_images/1877813-624c013a41480863.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 254 | 255 | 256 | （3）表间关系 257 | 258 | ![](http://upload-images.jianshu.io/upload_images/1877813-4444db10b1746736.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 259 | 260 | ### 2.2 前端输入框 261 | 262 | 在前端设置了输入框，输入学生姓名进行查询。 263 | 264 | 265 | ![](http://upload-images.jianshu.io/upload_images/1877813-d549db113c8c53cd.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 266 | 267 | 对应 html 代码，采用了 bootstrap 的输入框和按钮样式。 268 | 269 | ![](http://upload-images.jianshu.io/upload_images/1877813-cd570be57b7601ab.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 270 | 271 | 272 | ![](http://upload-images.jianshu.io/upload_images/1877813-a8bd5916883dcd12.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 273 | 274 | 在输入框的下面定了一个空的 table，用于当查询的时候返回内容。 275 | 276 | ![](http://upload-images.jianshu.io/upload_images/1877813-2f06f4fcb28a0d50.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 277 | 278 | ### 2.3 Ajax 向后端传输数据 279 | 280 | ```js 281 | 297 | ``` 298 | 299 | - type：post 向后端传递 name 输入框输入的 data 300 | - url：数据传入的链接：原链接+/HelloFrom 301 | - data：传递的数据 302 | - success：成功后进行的操作，jsp 中预留的 table append 数据 303 | 304 | 初始 305 | 306 | ![](http://upload-images.jianshu.io/upload_images/1877813-829f202bbcfe0216.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 307 | 308 | 查询 309 | 310 | ![](http://upload-images.jianshu.io/upload_images/1877813-500c3f1a217ffc49.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 311 | 312 | 查询另一个人 313 | 314 | ![](http://upload-images.jianshu.io/upload_images/1877813-ff8da855f08967f2.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 315 | 316 | 页面没有刷新，效果很不错。 317 | 318 | ### 2.4 后端 Servlet 数据查询 319 | 320 | ![](http://upload-images.jianshu.io/upload_images/1877813-e1b75762dc92ab4c.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 321 | 322 | 在 src 目录下定义了 HelloForm 这个类，主要包括： 323 | - 数据库属性设定 324 | - doPost 和 doGet 处理 325 | 326 | 327 | ```java 328 | import java.io.IOException; 329 | import java.io.PrintWriter; 330 | import java.sql.*; 331 | 332 | import javax.servlet.RequestDispatcher; 333 | import javax.servlet.ServletException; 334 | import javax.servlet.annotation.WebServlet; 335 | import javax.servlet.http.HttpServlet; 336 | import javax.servlet.http.HttpServletRequest; 337 | import javax.servlet.http.HttpServletResponse; 338 | 339 | /** 340 | * Created by shuai 341 | * on 2017/6/10. 342 | */ 343 | @WebServlet("/HelloForm") 344 | public class HelloForm extends HttpServlet { 345 | 346 | private static final long serialVersionUID = 1; 347 | 348 | // JDBC 驱动名及数据库 URL 349 | private static final String JDBC_DRIVER = "com.mysql.jdbc.Driver"; 350 | private static final String DB_URL = "jdbc:mysql://localhost:3306/csu"; // 同DataGrip 351 | 352 | // 数据库的用户名与密码，需要根据自己的设置 353 | private static final String USER = "root"; 354 | private static final String PASS = "shuai"; 355 | 356 | protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 357 | doGet(request, response); 358 | } 359 | 360 | protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { 361 | 362 | // 获取输入的学生姓名 363 | String name = new String(request.getParameter("name").getBytes(), "UTF-8"); 364 | 365 | try { 366 | // 注册 JDBC 驱动器 367 | Class.forName(JDBC_DRIVER); 368 | 369 | // 打开一个连接 370 | Connection conn = DriverManager.getConnection(DB_URL, USER, PASS); 371 | 372 | // 执行sql查询 373 | Statement stmt = conn.createStatement(); 374 | 375 | // String sql = "SELECT * FROM Grade WHERE no = \"0902140133\"; "; 376 | 377 | // 注意String要加引号 378 | String sql = "SELECT * FROM Grade " + 379 | "WHERE no = (SELECT sNo FROM Student WHERE sName = \"" + name + "\");"; 380 | 381 | // 执行查询得到结果集 382 | ResultSet rs = stmt.executeQuery(sql); 383 | 384 | // 向jsp页面传递数据 385 | RequestDispatcher rd = request.getRequestDispatcher("temp.jsp"); 386 | request.setAttribute("data", rs); 387 | rd.forward(request, response); 388 | 389 | } catch (Exception e) { 390 | e.printStackTrace(); 391 | } 392 | } 393 | } 394 | ``` 395 | doGet 分为以下几步： 396 | 1. 获取前端输入的学生姓名，request.getParameter("name") 397 | 1. 给 HelloForm 注册 JDBC 驱动器 398 | 1. 打开与 MySQL 数据库的链接 399 | 1. 定义 sql 语句 400 | 1. 执行 sql 查询得到结果集 401 | 1. 将结果集传回给 temp.jsp 页面 402 | 403 | ### 2.5 帮助 Ajax 的 temp.jsp 404 | temp.jsp 是一个临时的 jsp 文件，用于将执行 sql 返回的结果集转化成列表项，然后这些内容被 index.jsp 预留的 table 添加，从而在主页面异步加载数据。 405 | 406 | ```jsp 407 | <%@ page import="java.sql.ResultSet" %><%-- 408 | Created by IntelliJ IDEA. 409 | User: shuai 410 | Date: 2017/6/20 411 | Time: 18:04 412 | To change this template use File | Settings | File Templates. 413 | --%> 414 | <%@ page contentType="text/html;charset=UTF-8" language="java" %> 415 | 416 | 417 | 学号 418 | 课程 419 | 成绩 420 | 登记时间 421 | 422 | <% 423 | ResultSet rs = (ResultSet) request.getAttribute("data"); 424 | 425 | // 展开结果集数据库 426 | try { 427 | while (rs.next()) { 428 | String sNo = rs.getString("no"); 429 | String course = rs.getString("course"); 430 | String grade = rs.getString("grade"); 431 | String registerTime = rs.getString("registerTime"); 432 | 433 | // 输出数据 434 | out.println(""); 435 | out.println("" + sNo + ""); 436 | out.println("" + course + ""); 437 | out.println("" + grade + ""); 438 | out.println("" + registerTime + ""); 439 | out.println(""); 440 | 441 | } 442 | } catch (Exception e) { 443 | e.printStackTrace(); 444 | } 445 | 446 | %> 447 | ``` 448 | 449 | 450 | ![Ajax 完成](http://upload-images.jianshu.io/upload_images/1877813-90b93f8e47154137.png?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240) 451 | 452 | -------------------------------------------------------------------------------- /web/index.jsp: -------------------------------------------------------------------------------- 1 | <%@ page import="java.sql.ResultSet" %><%-- 2 | Created by IntelliJ IDEA. 3 | User: shuai 4 | Date: 2017/6/10 5 | Time: 12:27 6 | To change this template use File | Settings | File Templates. 7 | --%> 8 | <%@ page contentType="text/html;charset=UTF-8" language="java" %> 9 | 10 | 11 | 12 | 中南大学 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 |
32 | 33 | 36 | 37 |
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41 | 未来学生 42 | 在校学生 43 | 教职员工 44 | 校友校董 45 |
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134 | 135 | 信息门户| 136 | 中南e行| 137 | 邮件系统| 138 | 图书馆| 139 | 简| 140 | 繁| 141 | English 142 |
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302 | 中南要闻 303 | 304 | 305 |
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355 | 学生信息查询 356 |
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380 | 381 | 382 | 383 | <%----%> 384 | <%----%> 385 | <%----%> 386 | <%----%> 387 | <%----%> 388 | <%----%> 389 | <%----%> 390 | <%----%> 391 | 392 |
学号姓名
23456小丁
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412 | 413 |
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