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index.html
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<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>课程展示与筛选</title>
<style>
body {
font-family: Arial, sans-serif;
margin: 20px;
line-height: 1.6;
}
h1 {
color: #333;
text-align: center;
}
.filter-container {
display: flex;
flex-wrap: wrap;
gap: 10px;
padding: 15px;
background-color: #f8f9fa;
border-radius: 5px;
margin-bottom: 20px;
}
.filter-container label,
.filter-container select,
.filter-container input {
margin-bottom: 10px;
/* Add margin for better spacing in column view */
}
.filter-container select,
.filter-container input {
padding: 8px;
border: 1px solid #ddd;
border-radius: 4px;
}
button {
padding: 8px 15px;
background-color: #007bff;
color: white;
border: none;
border-radius: 4px;
cursor: pointer;
transition: background-color 0.3s;
}
button:hover {
background-color: #0056b3;
}
.error {
color: #dc3545;
padding: 10px;
margin: 10px 0;
background-color: #f8d7da;
border-radius: 4px;
text-align: center;
}
table {
width: 100%;
border-collapse: collapse;
margin-top: 20px;
font-size: 14px;
/* Slightly larger font size */
box-shadow: 0 1px 3px rgba(0, 0, 0, 0.2);
table-layout: fixed;
/* For fixed column widths */
}
table,
th,
td {
border: 1px solid #ddd;
}
th,
td {
padding: 12px;
text-align: left;
white-space: normal;
/* 允许文字换行 */
word-wrap: break-word;
/* 允许长单词换行 */
max-width: 150px;
/* 限制单元格最大宽度 */
}
th {
background-color: #f4f4f4;
color: #333;
cursor: pointer;
position: sticky;
/* Keep header fixed when scrolling */
top: 0;
}
tr:hover {
background-color: #f5f5f5;
}
td[data-title]:hover::after {
content: attr(data-title);
position: absolute;
left: 0;
top: 0;
z-index: 1;
background: rgba(255, 255, 255, 0.9);
padding: 5px 10px;
border-radius: 5px;
white-space: pre-wrap;
/* Allow wrapping for long tooltips */
}
.course-link {
color: #0366d6;
text-decoration: none;
cursor: pointer;
position: relative;
}
.course-link:hover {
text-decoration: underline;
}
/* 添加一个小图标表示这是外部链接 */
.course-link::after {
content: "↗️";
font-size: 0.8em;
margin-left: 4px;
opacity: 0.7;
}
#scheduleTable td.active {
background-color: #ffd700;
/* 高亮颜色 */
color: #000;
font-weight: bold;
}
#scheduleTable button {
margin-bottom: 10px;
}
#scheduleTable td {
cursor: pointer;
}
#scheduleTable td:hover {
background-color: #f0f0f0;
}
#scheduleTable td.active {
background-color: #ffd700;
color: #000;
font-weight: bold;
}
/* 在原有的style标签中添加 */
#loading-overlay {
position: fixed;
top: 0;
left: 0;
width: 100%;
height: 100%;
background-color: rgba(255, 255, 255, 0.9);
display: flex;
/* 修改这里，默认显示 */
justify-content: center;
align-items: center;
z-index: 9999;
}
.loading-content {
text-align: center;
}
.spinner {
width: 50px;
height: 50px;
border: 5px solid #f3f3f3;
border-top: 5px solid #3498db;
border-radius: 50%;
animation: spin 1s linear infinite;
margin: 0 auto 20px;
}
.loading-tip {
color: #666;
font-size: 14px;
margin-top: 10px;
}
@keyframes spin {
0% {
transform: rotate(0deg);
}
100% {
transform: rotate(360deg);
}
}
@media screen and (max-width: 768px) {
.filter-container {
flex-direction: column;
}
.filter-container select,
.filter-container input,
.filter-container label {
/* Add label to responsive width adjustment */
width: calc(100% - 20px);
/* Account for padding */
box-sizing: border-box;
/* Make sure padding is within width */
}
.filter-container label {
margin-bottom: 5px;
}
}
@media (prefers-color-scheme: dark) {
body {
background-color: #1a1a1a;
color: #ffffff;
}
h1 {
color: #ffffff;
}
.filter-container {
background-color: #2d2d2d;
}
table {
border-color: #444;
}
th {
background-color: #2d2d2d;
color: #ffffff;
}
td {
border-color: #444;
}
tr:hover {
background-color: #3d3d3d;
}
select,
input {
background-color: #2d2d2d;
color: #ffffff;
border-color: #444;
}
}
</style>
</head>
<body>
<!-- 在body开始处添加 -->
<div id="loading-overlay">
<div class="loading-content">
<div class="spinner"></div>
<p>正在加载课程数据，请耐心等待...</p>
<p class="loading-tip">首次加载可能需要一分钟左右</p>
</div>
</div>
<h1>课程展示与筛选</h1>
<div class="filter-container">
<label for="courseNature" id="courseNatureLabel">课程性质：</label>
<select id="courseNature" aria-labelledby="courseNatureLabel">
<option value="">全部</option>
</select>
<label for="campus" id="campusLabel">校区：</label>
<select id="campus" aria-labelledby="campusLabel">
<option value="">全部</option>
</select>
<label for="department" id="departmentLabel">开课学院：</label>
<select id="department" aria-labelledby="departmentLabel">
<option value="">全部</option>
</select>
<label for="search" id="searchLabel">搜索：</label>
<input type="text" id="search" placeholder="搜索课程信息..." aria-labelledby="searchLabel">
<button onclick="courseManager.applyFilters()">筛选</button>
</div>
<div id="scheduleTable">
<button onclick="courseManager.resetScheduleFilter()">重置时间筛选</button>
<table border="1" style="border-collapse: collapse; text-align: center; width: 100%;">
<thead>
<tr>
<th>时间段</th>
<th>星期一</th>
<th>星期二</th>
<th>星期三</th>
<th>星期四</th>
<th>星期五</th>
<th>星期六</th>
<th>星期日</th>
</tr>
</thead>
<tbody>
<tr>
<td>1-2节</td>
<td data-day="1" data-time="1-2"></td>
<td data-day="2" data-time="1-2"></td>
<td data-day="3" data-time="1-2"></td>
<td data-day="4" data-time="1-2"></td>
<td data-day="5" data-time="1-2"></td>
<td data-day="6" data-time="1-2"></td>
<td data-day="7" data-time="1-2"></td>
</tr>
<tr>
<td>3-4节</td>
<td data-day="1" data-time="3-4"></td>
<td data-day="2" data-time="3-4"></td>
<td data-day="3" data-time="3-4"></td>
<td data-day="4" data-time="3-4"></td>
<td data-day="5" data-time="3-4"></td>
<td data-day="6" data-time="3-4"></td>
<td data-day="7" data-time="3-4"></td>
</tr>
<tr>
<td>5-6节</td>
<td data-day="1" data-time="5-6"></td>
<td data-day="2" data-time="5-6"></td>
<td data-day="3" data-time="5-6"></td>
<td data-day="4" data-time="5-6"></td>
<td data-day="5" data-time="5-6"></td>
<td data-day="6" data-time="5-6"></td>
<td data-day="7" data-time="5-6"></td>
</tr>
<tr>
<td>7-8节</td>
<td data-day="1" data-time="7-8"></td>
<td data-day="2" data-time="7-8"></td>
<td data-day="3" data-time="7-8"></td>
<td data-day="4" data-time="7-8"></td>
<td data-day="5" data-time="7-8"></td>
<td data-day="6" data-time="7-8"></td>
<td data-day="7" data-time="7-8"></td>
</tr>
<tr>
<td>10-11节</td>
<td data-day="1" data-time="10-11"></td>
<td data-day="2" data-time="10-11"></td>
<td data-day="3" data-time="10-11"></td>
<td data-day="4" data-time="10-11"></td>
<td data-day="5" data-time="10-11"></td>
<td data-day="6" data-time="10-11"></td>
<td data-day="7" data-time="10-11"></td>
</tr>
</tbody>
</table>
</div>
<table id="courseTable">
<thead>
<tr>
<th style="width: 4%;">课程序号</th>
<th style="width: 6%;">课程名称</th>
<th style="width: 1.5%;">周学时</th>
<th style="width: 1.5%;">负责人</th>
<th style="width: 3%;">授课教师</th>
<th style="width: 3%;">课程性质</th>
<th style="width: 1.5%;">授课语言</th>
<th style="width: 3%;">校区</th>
<th style="width: 4%;">开课学院</th>
<th style="width: 6%;">听课专业</th>
<th style="width: 10%;">排课信息</th>
</tr>
</thead>
<tbody>
<!-- 数据将动态填充 -->
</tbody>
</table>
<script>
class CourseManager {
constructor() {
this.originalData = [];
this.filteredData = [];
this.validCourseNatures = [
"通识选修课", "通识必修课", "社会发展与国际视野", "人文经典与审美素养",
"科学探索与生命关怀", "工程能力与创新思维", "必修课程", "公共课",
"专业基础课", "专业选修课", "专业必修课", "实践环节", "实践环节课程",
"公共基础课", "个性化课程"
];
this.validCampuses = ["四平路校区", "嘉定校区", "沪西校区", "沪北校区"];
this.currentScheduleFilter = null;
this.electiveCourseTypes = [
"人文经典与审美素养",
"工程能力与创新思维",
"社会发展与国际视野",
"科学探索与生命关怀"
];
this.loadingOverlay = document.getElementById('loading-overlay');
this.loadingOverlay.style.display = 'flex'; // 确保初始状态是显示的
}
// 显示加载提示
showLoading() {
this.loadingOverlay.style.display = 'flex';
}
// 隐藏加载提示
hideLoading() {
this.loadingOverlay.style.display = 'none';
}
init() {
this.showLoading(); // 开始加载时显示
this.loadData();
this.setupEventListeners();
}
loadData() {
this.showLoading();
fetch('source.csv')
.then(response => {
if (!response.ok) throw new Error('无法加载 source.csv 文件');
return response.text();
})
.then(csv => {
const loadingText = document.querySelector('.loading-content p:first-of-type');
loadingText.textContent = '正在处理课程数据，请耐心等待...';
// 移除 requestAnimationFrame，直接处理数据
this.processCSV(csv);
// 注意：不要在这里调用 hideLoading()，
// 让 processCSV 方法在完成时调用
})
.catch(error => {
console.error(error);
document.body.innerHTML += '<div class="error">加载数据时发生错误，请刷新页面重试。</div>';
this.hideLoading();
});
}
processCSV(csv) {
try {
const parseCSVLine = (line) => {
const result = [];
let cell = '';
let inQuotes = false;
for (let i = 0; i < line.length; i++) {
const char = line[i];
if (char === '"') {
inQuotes = !inQuotes;
continue;
}
if (char === ',' && !inQuotes) {
result.push(cell.trim());
cell = '';
} else {
cell += char;
}
}
result.push(cell.trim());
return result;
};
const rows = csv.split("\n");
const totalRows = rows.length;
let processedRows = 0;
let currentDepartment = "";
this.originalData = [];
// 更新加载进度的函数
const updateLoadingProgress = (percent) => {
const loadingText = document.querySelector('.loading-content p:first-of-type');
loadingText.textContent = `正在处理课程数据 (${percent}%)，请耐心等待...`;
};
// 修改分批处理数据的逻辑
const processChunk = (startIndex) => {
this.showLoading(); // 确保处理过程中显示加载提示
const chunkSize = 100;
const endIndex = Math.min(startIndex + chunkSize, rows.length);
for (let i = startIndex; i < endIndex; i++) {
const row = parseCSVLine(rows[i]);
if (row[0] && row.slice(1).every(cell => cell === "")) {
currentDepartment = row[0];
} else if (row[0] && row[1]) {
const courseNature = row[7];
const campus = row[9];
if (!this.validCourseNatures.includes(courseNature) ||
!this.validCampuses.includes(campus)) {
continue;
}
this.originalData.push({
courseId: row[0],
courseName: row[1],
weeklyHours: row[2],
leader: row[3],
teachers: row[4],
courseNature: row[7],
language: row[8],
campus: row[9],
department: currentDepartment,
auditInfo: row[10],
schedule: row[14].replace(/\s+/g, '')
});
}
processedRows++;
}
// 更新进度
const percent = Math.round((processedRows / totalRows) * 100);
updateLoadingProgress(percent);
// 如果还有数据需要处理，继续下一批
if (endIndex < rows.length) {
setTimeout(() => processChunk(endIndex), 0);
} else {
// 所有数据处理完成
this.filteredData = [...this.originalData];
this.populateFilters();
this.renderTable();
this.addSortingFunctionality();
this.hideLoading(); // 只在所有处理完成后隐藏加载提示
}
};
// 开始处理第一批数据
processChunk(0);
} catch (error) {
console.error('处理CSV数据时出错:', error);
document.body.innerHTML += '<div class="error">处理数据时发生错误，请刷新页面重试。</div>';
this.hideLoading();
}
}
setupEventListeners() {
// 搜索框事件
const searchInput = document.getElementById('search');
searchInput.addEventListener('input',
this.debounce(() => this.applyFilters(), 300));
// 下拉框筛选事件
['courseNature', 'campus', 'department'].forEach(id => {
document.getElementById(id).addEventListener('change',
() => this.applyFilters());
});
// 课程表单元格点击事件
const scheduleCells = document.querySelectorAll('#scheduleTable td[data-day][data-time]');
scheduleCells.forEach(cell => {
cell.addEventListener('click', () => {
const day = cell.dataset.day;
const time = cell.dataset.time;
this.highlightSelectedCell(cell);
this.filterBySchedule(day, time);
});
});
}
// 修改 populateFilters 方法
populateFilters() {
const courseNatureSet = new Set();
const campusSet = new Set();
const departmentSet = new Set();
this.originalData.forEach(item => {
courseNatureSet.add(item.courseNature);
campusSet.add(item.campus);
departmentSet.add(item.department);
});
// 特殊处理课程性质下拉框
const courseNatureSelect = document.getElementById("courseNature");
courseNatureSelect.innerHTML = '<option value="">全部</option>';
courseNatureSelect.innerHTML += '<option value="选修课合集">选修课合集</option>';
// 添加其他选项
Array.from(courseNatureSet).sort().forEach(option => {
const opt = document.createElement("option");
opt.value = option;
opt.textContent = option;
courseNatureSelect.appendChild(opt);
});
// 其他下拉框保持不变
this.populateSelect("campus", campusSet);
this.populateSelect("department", departmentSet);
}
populateSelect(selectId, optionsSet) {
const select = document.getElementById(selectId);
select.innerHTML = '<option value="">全部</option>';
Array.from(optionsSet).sort().forEach(option => {
const opt = document.createElement("option");
opt.value = option;
opt.textContent = option;
select.appendChild(opt);
});
}
filterBySchedule(day, time) {
const dayMapping = {
"1": "星期一", "2": "星期二", "3": "星期三",
"4": "星期四", "5": "星期五", "6": "星期六", "7": "星期日"
};
this.currentScheduleFilter = `${dayMapping[day]}${time}`;
this.applyFilters();
}
// 修改 applyFilters 方法
applyFilters() {
this.showLoading(); // 显示加载提示
const courseNature = document.getElementById("courseNature").value;
const campus = document.getElementById("campus").value;
const department = document.getElementById("department").value;
const search = document.getElementById("search").value.toLowerCase();
setTimeout(() => {
this.filteredData = this.originalData.filter(item => {
// 处理"选修课合集"的特殊情况
const courseNatureMatch = courseNature === "" ? true :
courseNature === "选修课合集" ?
this.electiveCourseTypes.includes(item.courseNature) :
item.courseNature === courseNature;
// 其他筛选条件保持不变
const basicFilter = (
courseNatureMatch &&
(campus === "" || item.campus === campus) &&
(department === "" || item.department === department) &&
(search === "" || Object.values(item).some(value =>
String(value).toLowerCase().includes(search)))
);
// 时间筛选部分保持不变
if (!this.currentScheduleFilter) {
return basicFilter;
}
const scheduleItems = item.schedule.split(',').map(s => s.trim());
const scheduleMatch = scheduleItems.some(scheduleItem => {
const cleanScheduleItem = scheduleItem.replace(/\s+/g, '');
return cleanScheduleItem.includes(this.currentScheduleFilter);
});
return basicFilter && scheduleMatch;
});
this.renderTable();
this.hideLoading(); // 处理完成后隐藏加载提示
}, 0);
}
renderTable() {
this.showLoading();
const tbody = document.getElementById("courseTable").querySelector("tbody");
tbody.innerHTML = "";
setTimeout(() => {
this.filteredData.forEach(item => {
const row = document.createElement("tr");
// 创建一个包含所有单元格的数组，特殊处理课程名称单元格
const cells = [
`<td data-title="${item.courseId}">${item.courseId}</td>`,
`<td data-title="${item.courseName}">
<a href="https://1.tongji.icu/search?q=${encodeURIComponent(item.courseName)}"
class="course-link"
target="_blank"
title="点击查看课程详情">
${item.courseName}
</a>
</td>`,
`<td data-title="${item.weeklyHours}">${item.weeklyHours}</td>`,
`<td data-title="${item.leader}">${item.leader}</td>`,
`<td data-title="${item.teachers}">${item.teachers}</td>`,
`<td data-title="${item.courseNature}">${item.courseNature}</td>`,
`<td data-title="${item.language}">${item.language}</td>`,
`<td data-title="${item.campus}">${item.campus}</td>`,
`<td data-title="${item.department}">${item.department}</td>`,
`<td data-title="${item.auditInfo}">${item.auditInfo}</td>`,
`<td data-title="${item.schedule}">${item.schedule}</td>`
];
row.innerHTML = cells.join('');
tbody.appendChild(row);
});
this.hideLoading();
}, 0);
}
highlightSelectedCell(selectedCell) {
const scheduleCells = document.querySelectorAll('#scheduleTable td');
scheduleCells.forEach(cell => cell.classList.remove('active'));
selectedCell.classList.add('active');
}
resetScheduleFilter() {
this.currentScheduleFilter = null;
const scheduleCells = document.querySelectorAll('#scheduleTable td');
scheduleCells.forEach(cell => cell.classList.remove('active'));
this.applyFilters();
}
addSortingFunctionality() {
const headers = document.querySelectorAll('th');
headers.forEach((header, index) => {
header.addEventListener('click', () => this.sortTable(index));
});
}
sortTable(column) {
this.filteredData.sort((a, b) => {
const values = Object.values(a)[column];
const valueb = Object.values(b)[column];
return values.localeCompare(valueb);
});
this.renderTable();
}
debounce(func, wait) {
let timeout;
return (...args) => {
clearTimeout(timeout);
timeout = setTimeout(() => func.apply(this, args), wait);
};
}
}
const courseManager = new CourseManager();
window.onload = () => courseManager.init();
</script>
</body>
</html>