上傳檔案到「/」

app.py

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+
+
+import os
+from flask import Flask, request, render_template, send_from_directory, flash, redirect, url_for
+from werkzeug.utils import secure_filename
+from transform_data import process_with_rounding
+
+# --- 設定 ---
+UPLOAD_FOLDER = 'uploads' # 用於儲存上傳和處理後的檔案
+ALLOWED_EXTENSIONS = {'xls', 'xlsx'}
+
+app = Flask(__name__)
+app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER
+app.config['SECRET_KEY'] = 'supersecretkey' # Flask 需要一個密鑰來顯示提示訊息
+
+# --- 輔助函式 ---
+def allowed_file(filename):
+    return '.' in filename and \
+           filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS
+
+# --- 路由定義 ---
+@app.route('/', methods=['GET', 'POST'])
+def upload_file():
+    if request.method == 'POST':
+        # 檢查是否有上傳檔案
+        if 'file' not in request.files:
+            flash('沒有檔案部分')
+            return redirect(request.url)
+        file = request.files['file']
+        # 如果使用者未選擇檔案，瀏覽器也會送出一個沒有檔名的空檔案
+        if file.filename == '':
+            flash('未選擇檔案')
+            return redirect(request.url)
+        
+        if file and allowed_file(file.filename):
+            filename = secure_filename(file.filename)
+            
+            # 建立上傳資料夾 (如果不存在)
+            if not os.path.exists(app.config['UPLOAD_FOLDER']):
+                os.makedirs(app.config['UPLOAD_FOLDER'])
+                
+            input_path = os.path.join(app.config['UPLOAD_FOLDER'], filename)
+            file.save(input_path)
+            
+            # 產生最終檔案名稱
+            base, ext = os.path.splitext(filename)
+            final_filename = f"{base}_final_rounded.xlsx"
+            
+            # 呼叫您既有的處理函式
+            try:
+                process_with_rounding(input_path, final_filename)
+                # 提供下載連結
+                return redirect(url_for('download_file', name=final_filename))
+            except Exception as e:
+                flash(f'處理檔案時發生錯誤: {e}')
+                return redirect(request.url)
+
+    return render_template('index.html')
+
+@app.route('/uploads/<name>')
+def download_file(name):
+    return send_from_directory(app.config['UPLOAD_FOLDER'], name)
+
+# --- 啟動伺服器 ---
+if __name__ == '__main__':
+    # 使用 host='0.0.0.0' 讓區域網路中的其他電腦可以存取
+    # 在生產環境中，建議設置 debug=False
+    app.run(debug=False, host='0.0.0.0', port=12001)
+