Ajax获取PHP端csv转的json数据并js前端排序与分页

<?php
setlocale(LC_ALL, 'C'); //window:删除行首双斜杠

if($_GET["act"]=="list"){
$csvFile = 'book.csv'; // 文件路径：制表符分隔文件
$data = [];
if (($handle = fopen($csvFile, 'r')) !== false) {
    $header = fgetcsv($handle,0,"\t"); // 读取表头
    while (($row = fgetcsv($handle,0,"\t")) !== false) {
        $data[] = array_combine($header, $row); // 将表头与数据组合
    }
    fclose($handle);
}
header('Content-Type: application/json');
echo json_encode($data);
exit();
}
?>
<!DOCTYPE html>
<html>
<head>
    <meta charset="UTF-8">
    <title>数据表格</title>
<style>
.container {
    margin: 20px;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 20px;
}

th, td {
    border: 1px solid #ddd;
    padding: 5px;
    text-align: left;
}

th {
    background-color: #f5f5f5;
    position: relative;
    padding-right: 25px;
    cursor: pointer;
}

.sort-arrows {
    position: absolute;
    right: 5px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    line-height: 8px;
}

.arrow {
    font-size: 8px;
    color: #666;
}

.arrow.active {
    color: red;
}

.pagination {
    display: flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
}

button {
    padding: 5px 10px;
    cursor: pointer;
}

select {
    padding: 5px;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}

tr:hover {
    background-color: #f5f5f5;
}
</style>
</head>
<body>
    <div class="container">
        <table id="dataTable">
            <thead>
                <tr id="headerRow">
                    <!-- 表头将由JS动态生成 -->
                </tr>
            </thead>
            <tbody id="tableBody">
                <!-- 数据行将由JS动态生成 -->
            </tbody>
        </table>
        <div class="pagination">
            <button id="firstPage">首页</button>
            <button id="prevPage">上一页</button>
            <select id="pageSelect"></select>
            <button id="nextPage">下一页</button>
            <button id="lastPage">尾页</button>
        </div>
    </div>
<script>
class DataTable {
    constructor() {
        this.data = [];
        this.currentPage = 1;
        this.rowsPerPage = 10;
        this.sortColumn = null;
        this.sortDirection = 'asc';
        
        this.init();
    }

    init() {
        this.loadData();
        this.bindEvents();
    }

    async loadData() {
        try {
            const response = await fetch('?act=list&tt=tt');
            const jsonData = await response.json();
            this.data = jsonData;
            this.setupTable();
            this.renderTable();
            this.setupPagination();
        } catch (error) {
            console.error('数据加载失败:', error);
        }
    }

    setupTable() {
        if (this.data.length === 0) return;
        
        const headerRow = document.getElementById('headerRow');
        headerRow.innerHTML = '';
        
        // 创建表头
        Object.keys(this.data[0]).forEach(key => {
            const th = document.createElement('th');
            th.innerHTML = `
                ${key}
                <div class="sort-arrows">
                    <span class="arrow up" data-column="${key}">▲</span>
                    <span class="arrow down" data-column="${key}">▼</span>
                </div>
            `;
            headerRow.appendChild(th);
        });
    }

    renderTable() {
        const tableBody = document.getElementById('tableBody');
        tableBody.innerHTML = '';

        // 排序数据
        let sortedData = [...this.data];
        if (this.sortColumn) {
            sortedData.sort((a, b) => {
                const aVal = a[this.sortColumn];
                const bVal = b[this.sortColumn];
                if (this.sortDirection === 'asc') {
                    return aVal > bVal ? 1 : -1;
                } else {
                    return aVal < bVal ? 1 : -1;
                }
            });
        }

        // 分页
        const start = (this.currentPage - 1) * this.rowsPerPage;
        const paginatedData = sortedData.slice(start, start + this.rowsPerPage);

        // 渲染数据行
        paginatedData.forEach(row => {
            const tr = document.createElement('tr');
            Object.values(row).forEach(value => {
                const td = document.createElement('td');
                td.textContent = value;
                tr.appendChild(td);
            });
            tableBody.appendChild(tr);
        });
    }

    setupPagination() {
        const totalPages = Math.ceil(this.data.length / this.rowsPerPage);
        const pageSelect = document.getElementById('pageSelect');
        pageSelect.innerHTML = '';

        for (let i = 1; i <= totalPages; i++) {
            const option = document.createElement('option');
            option.value = i;
            option.textContent = `第${i}页`;
            pageSelect.appendChild(option);
        }
    }

    bindEvents() {
        // 排序事件
        document.getElementById('headerRow').addEventListener('click', (e) => {
            const arrow = e.target.closest('.arrow');
            if (!arrow) return;

            const column = arrow.dataset.column;
            const isUp = arrow.classList.contains('up');

            // 重置所有箭头样式
            document.querySelectorAll('.arrow').forEach(a => a.classList.remove('active'));
            
            // 设置当前箭头样式
            arrow.classList.add('active');

            this.sortColumn = column;
            this.sortDirection = isUp ? 'asc' : 'desc';
            this.renderTable();
        });

        // 分页事件
        document.getElementById('firstPage').addEventListener('click', () => {
            this.currentPage = 1;
            this.renderTable();
        });

        document.getElementById('prevPage').addEventListener('click', () => {
            if (this.currentPage > 1) {
                this.currentPage--;
                this.renderTable();
            }
        });

        document.getElementById('pageSelect').addEventListener('change', (e) => {
            this.currentPage = parseInt(e.target.value);
            this.renderTable();
        });

        document.getElementById('nextPage').addEventListener('click', () => {
            const totalPages = Math.ceil(this.data.length / this.rowsPerPage);
            if (this.currentPage < totalPages) {
                this.currentPage++;
                this.renderTable();
            }
        });

        document.getElementById('lastPage').addEventListener('click', () => {
            this.currentPage = Math.ceil(this.data.length / this.rowsPerPage);
            this.renderTable();
        });
    }
}

// 初始化表格
document.addEventListener('DOMContentLoaded', () => {
    new DataTable();
});
</script>
</body>
</html>

数据示范:制表符分隔的，可以直接excel复制粘贴

姓名	学号	身份证号	科目1	科目2	科目3	科目4	科目5	科目.	科目N
李一	10001001	90001001	87	84	75	91	83	76	87
李二	10001002	90001002	95	81	81	71	60	82	99
李三	10001003	90001003	68	80	65	79	68	71	91
李四	10001004	90001004	82	80	75	90	87	64	81
李五	10001005	90001005	60	64	61	71	73	85	61