ADD file via upload

classManager.js

@@ -0,0 +1,48 @@
+const fs = require('fs');
+const path = require('path');
+const xlsx = require('xlsx');
+const pool = require('../db');
+
+const classManager = {
+    addClass: (req, res) => {
+        const filePath = req.file.path;
+
+        // 读取并解析Excel文件
+        const workbook = xlsx.readFile(filePath);
+        const sheetName = workbook.SheetNames[0];
+        const worksheet = workbook.Sheets[sheetName];
+
+        const students = xlsx.utils.sheet_to_json(worksheet);
+
+        // 定义所需的字段
+        const requiredFields = [ 'student_id', 'student_name'];
+        let hasError = false;
+
+        students.forEach(student => {
+            // 数据验证
+            const missingFields = requiredFields.filter(field =>!(field in student));
+            if (missingFields.length > 0) {
+                console.error(`Student data is missing fields: ${missingFields.join(', ')}`);
+                hasError = true;
+                return;
+            }
+
+            // 将学生数据插入数据库
+            const query = 'INSERT INTO students (student_id, student_name, score, call_count) VALUES (?,?, 0, 0)';
+            pool.query(query, [student.student_id, student.student_name], (error) => {
+                if (error) {
+                    console.error(`Error inserting student: ${student.name}`, error);
+                    hasError = true;
+                }
+            });
+        });
+
+        if (hasError) {
+            res.status(500).json({ message: 'Error adding class. Some students were not added successfully.' });
+        } else {
+            res.status(200).json({ message: 'Class added successfully!' });
+        }
+    }
+};
+
+module.exports = classManager;