flask框架-session
阿新 • • 發佈:2021-07-28
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from flask import Flask, session, redirect, url_for, escape, request app = Flask(__name__) @app.route('/') def index(): if 'username' in session: return 'Logged in as %s' % escape(session['username']) return 'You are not logged in' @app.route('/login', methods=['GET', 'POST']) def login(): if request.method == 'POST': session['username'] = request.form['username'] return redirect(url_for('index')) return ''' <form action="" method="post"> <p><input type=text name=username> <p><input type=submit value=Login> </form> '''@app.route('/logout') def logout(): # remove the username from the session if it's there session.pop('username', None) return redirect(url_for('index')) # set the secret key. keep this really secret: app.secret_key = 'A0Zr98j/3yX R~XHH!jmN]LWX/,?RT'
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使用session的注意點:
第一點,要有一個app.secret_key,這是要加密的時候加鹽,
第二點,新增session,session['username'] = request.form['username']
第三點:判斷session,if 'username' in session:
第四點:刪除session,刪除:session.pop('username', None)