flask更改用户头像
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flask更改用户头像
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目錄結構圖:
配置app
導包及配置
import os from flask import Flask, flash, request, redirect, url_for,Request,render_template from werkzeug.utils import secure_filenameUPLOAD_FOLDER = '文件下載的絕對路徑' # 允許的下載類型 ALLOWED_EXTENSIONS = {'txt', 'pdf', 'png', 'jpg', 'jpeg', 'gif'}app = Flask(__name__) app.config['SECRET_KEY'] = 'some secret words' # 配置文件上傳后的路徑 app.config['UPLOAD_FOLDER'] = UPLOAD_FOLDER app.config['MAX_CONTENT_LENGTH'] = 16 * 1000 * 1000 app.config["AVATAR"]= "默認頭像" # 判斷文件類型是否合格 def allowed_file(filename):return '.' in filename and \filename.rsplit('.', 1)[1].lower() in ALLOWED_EXTENSIONS @app.route('/', methods=['GET', 'POST']) def upload_file():# 為post請求則if request.method == 'POST':# check if the post request has the file part# 多重判斷if 'file' not in request.files:flash('No file part')return redirect(url_for('upload_file'))file = request.files['file']if file.filename == '':flash('No selected file')return redirect(request.url)# 文件合格if file and allowed_file(file.filename):filename = secure_filename(file.filename)# 更改默認頭像app.config['AVATAR']= filename# 文件保存到下載目錄file.save(os.path.join(app.config['UPLOAD_FOLDER'], filename))return render_template('index.html',avatar=app.config["AVATAR"]) app.run(debug=True) #開啟debug 運行index.html
<!DOCTYPE html> <html lang="en"> <head><meta charset="UTF-8"><title>更改頭像</title><style>#all{margin : 0px auto;height:300px;width:250px;}img{height:250px;width:250px;border-radius: 120px;border:solid 1px gray;}h3{text-align:center;}.alert {position: relative;padding: 7px;margin: 7px 0;border: 1px solid transparent;color: #004085;background-color: #cce5ff;border-color: #b8daff;border-radius: 5px;}</style> </head> <body><div id="all"><!-- 插入到頁面標題上方 -->{% for message in get_flashed_messages() %}<div class="alert">{{ message }}</div>{% endfor %}<img src="../static/{{ avatar }}" alt="" ><h3>更改頭像</h3><form method=post enctype=multipart/form-data><input type=file name=file><input type=submit value=Upload></form> </div></body> </html>運行結果
最好是查看官方文檔
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