{"id":205121,"date":"2025-05-29T15:47:40","date_gmt":"2025-05-29T07:47:40","guid":{"rendered":"https:\/\/server.hk\/cnblog\/205121\/"},"modified":"2025-05-29T15:47:40","modified_gmt":"2025-05-29T07:47:40","slug":"flask%e8%b4%ad%e7%89%a9%e8%bd%a6%e6%95%b0%e9%87%8f%e6%9b%b4%e6%96%b0%e5%a4%b1%e8%b4%a5%ef%bc%9a%e5%a6%82%e4%bd%95%e6%ad%a3%e7%a1%ae%e4%bd%bf%e7%94%a8session%e6%9b%b4%e6%96%b0%e8%b4%ad%e7%89%a9","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/205121\/","title":{"rendered":"Flask\u8d2d\u7269\u8f66\u6570\u91cf\u66f4\u65b0\u5931\u8d25\uff1a\u5982\u4f55\u6b63\u786e\u4f7f\u7528Session\u66f4\u65b0\u8d2d\u7269\u8f66\u5546\u54c1\u6570\u91cf\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>Flask\u8d2d\u7269\u8f66\u6570\u91cf\u66f4\u65b0\u5931\u8d25\uff1a\u5982\u4f55\u6b63\u786e\u4f7f\u7528Session\u66f4\u65b0\u8d2d\u7269\u8f66\u5546\u54c1\u6570\u91cf\uff1f<\/h1>\n<p>\u5728IT\u884c\u4e1a\u8fd9\u4e2a\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u5f88\u5feb\u7684\u884c\u4e1a\uff0c\u53ea\u6709\u4e0d\u505c\u6b62\u7684\u5b66\u4e60\uff0c\u624d\u4e0d\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u5982\u679c\u4f60\u662f\u6587\u7ae0\u5b66\u4e60\u8005\uff0c\u90a3\u4e48\u672c\u6587\u300aFlask\u8d2d\u7269\u8f66\u6570\u91cf\u66f4\u65b0\u5931\u8d25\uff1a\u5982\u4f55\u6b63\u786e\u4f7f\u7528Session\u66f4\u65b0\u8d2d\u7269\u8f66\u5546\u54c1\u6570\u91cf\uff1f\u300b\u5c31\u5f88\u9002\u5408\u4f60\uff01\u672c\u7bc7\u5185\u5bb9\u4e3b\u8981\u5305\u62ec##content_title##\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u7684\u77e5\u8bc6\u79ef\u7d2f\u6709\u6240\u5e2e\u52a9\uff0c\u52a9\u529b\u5b9e\u6218\u5f00\u53d1\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241124\/173241437767428ba9d2b70.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>flask session \u8d2d\u7269\u8f66\u6570\u91cf\u66f4\u65b0\u5931\u7075<\/strong><\/p>\n<p>\u4f60\u7684\u95ee\u9898\u662f\u5173\u4e8e\u5728 flask \u5e94\u7528\u7a0b\u5e8f\u4e2d\u4f7f\u7528 session \u6765\u5b9e\u73b0\u8d2d\u7269\u8f66\u7684\u529f\u80fd\u3002\u5177\u4f53\u6765\u8bf4\uff0c\u4f60\u53d1\u73b0\u6dfb\u52a0\u5546\u54c1\u540e\uff0c\u8d2d\u7269\u8f66\u4e2d\u5546\u54c1\u7684\u6570\u91cf\u65e0\u6cd5\u6b63\u786e\u66f4\u65b0\u3002<\/p>\n<p>\u6e90\u4ee3\u7801\u4e2d\uff0c\u4f60\u5df2\u7ecf\u4f7f\u7528\u4e86 session \u6765\u5b58\u50a8\u8d2d\u7269\u8f66\u7684\u5546\u54c1\u4fe1\u606f\u3002\u66f4\u65b0\u5546\u54c1\u6570\u91cf\u65f6\uff0c\u4f60\u6b63\u786e\u5730\u4fee\u6539\u4e86 session[&#8216;cart&#8217;] \u4e2d\u5546\u54c1\u6570\u91cf\uff0c\u4f46\u662f\u5ffd\u7565\u4e86\u4e00\u4e2a\u91cd\u8981\u6b65\u9aa4\u3002<\/p>\n<p>flask \u7684 session \u673a\u5236\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u4e0d\u4f1a\u81ea\u52a8\u66f4\u65b0\u53ef\u53d8\u5bf9\u8c61\u3002\u5bf9\u4e8e\u5b57\u5178\u7b49\u53ef\u53d8\u5bf9\u8c61\uff0c\u5728\u4fee\u6539\u5b83\u4eec\u540e\uff0c\u5fc5\u987b\u624b\u52a8\u8bbe\u7f6e session.modified = true \u4ee5\u901a\u77e5 flask \u66f4\u65b0 session\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u4f60\u7684\u4ee3\u7801\u5e94\u8be5\u5982\u4e0b\u4fee\u6539\uff1a<\/p>\n<pre>@app.route('\/add-to-cart', methods=('GET', 'POST'))\ndef add_to_cart():\n    product_id = request.form.get('product_id')\n    product_quantity = int(request.form.get('product_quantity'))\n\n    if 'cart' not in session:\n        session['cart'] = {}\n    if product_id not in session['cart']:\n        session['cart'][product_id]={'pdoct_id':product_id, 'product_quantity': product_quantity}\n    else:\n        session['cart'][product_id]['product_quantity'] += product_quantity\n    \n    session.modified = True  # 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