python使用flask框架生成excle返回前端（包含圖片、表格、表頭灰色、表格加邊框）

　　python使用flask框架生成excle文件，文件中包含圖片和表格，其中表格要包含圖片、表格、表頭灰色、表格加邊框，照片和表格不重疊。

邏輯：獲得圖片的高度，根據高度計算表格從第幾行開始插入。

效果圖：

程式碼：

import openpyxl
from openpyxl.styles import PatternFill
from openpyxl.drawing.image import Image
from flask import Flask, send_file, request
import base64
import io
from io import BytesIO
from PIL import Image as PillowImage
import math

app = Flask(__name__)

@app.route('/download-excel', methods=['POST'])
def download_excel():
    base64_swdt = request.form.get('base64')

    # 獲取思維導圖高度
    # 解碼base64字串為圖片資料
    decoded_string = base64.b64decode(base64_swdt)
    image_temp = BytesIO(decoded_string)
    image = PillowImage.open(image_temp)
    # 獲取圖片的高度
    height = image.size[1]
    print("圖片高度：", height)
    temp_num = math.ceil(height / 17.2)

    # 新增表格資料
    data = [
        ['姓名', '年齡', '性別'],
        ['張三21312312312', 25, '男1111111111111'],
        ['李四', 30, '女'],
        ['王五', 28, '男11111111111111111111111111111111111111']
    ]

    # 建立一個新的Excel工作簿
    workbook = openpyxl.Workbook()
    sheet = workbook.active

    # 指定從第幾行開始插入資料
    start_row = int(temp_num)


    # 插入空行
    for _ in range(start_row - 1):
        sheet.append([])

    for row in data:
        sheet.append(row)

    # 調整列寬以適應內容
    for column in sheet.columns:
        max_length = 0
        column = [cell for cell in column]
        for cell in column:
            try:
                if len(str(cell.value)) > max_length:
                    max_length = len(cell.value)
            except:
                pass
        adjusted_width = (max_length + 2) * 1.2
        sheet.column_dimensions[column[0].column_letter].width = adjusted_width

    # 新增邊框
    border = openpyxl.styles.Border(left=openpyxl.styles.Side(style='thin'),
                                    right=openpyxl.styles.Side(style='thin'),
                                    top=openpyxl.styles.Side(style='thin'),
                                    bottom=openpyxl.styles.Side(style='thin'))

    # 指定起始行和結束行
    end_row = len(data) + start_row - 1

    for row in range(start_row, end_row + 1):
        for cell in sheet[row]:
            cell.border = border

    # 設定表頭顏色為灰色
    green_fill = PatternFill(start_color="C0C0C0", end_color="C0C0C0", fill_type="solid")
    for cell in sheet[start_row]:
        cell.fill = green_fill



    # 插入圖片
    # 將base64編碼的圖片解碼為位元組流
    image_data = base64.b64decode(base64_swdt)
    image_stream = io.BytesIO(image_data)
    # 插入圖片到工作表
    img = Image(image_stream)
    sheet.add_image(img, 'A1')  # 將圖片插入到A1單元格


    # 儲存工作簿到臨時檔案
    temp_file = "temp_excel.xlsx"
    workbook.save(temp_file)


    # 將臨時檔案傳送給前端
    return send_file(temp_file, as_attachment=True, download_name='example.xlsx',
                     mimetype='application/vnd.openxmlformats-officedocument.spreadsheetml.sheet')
if __name__ == '__main__':
    app.run()