{"id":204188,"date":"2025-05-29T13:20:12","date_gmt":"2025-05-29T05:20:12","guid":{"rendered":"https:\/\/server.hk\/cnblog\/204188\/"},"modified":"2025-05-29T13:20:12","modified_gmt":"2025-05-29T05:20:12","slug":"flask-%e6%a1%86%e6%9e%b6%e4%b8%ad%e5%a6%82%e4%bd%95%e4%bd%bf%e7%94%a8-url_for-%e7%94%9f%e6%88%90%e5%b8%a6%e6%9c%89%e7%ab%af%e5%8f%a3%e5%8f%b7%e7%9a%84-url%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/204188\/","title":{"rendered":"Flask \u6846\u67b6\u4e2d\u5982\u4f55\u4f7f\u7528 `url_for` \u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 URL\uff1f"},"content":{"rendered":"

<\/b> <\/p>\n

Flask \u6846\u67b6\u4e2d\u5982\u4f55\u4f7f\u7528 `url_for` \u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 URL\uff1f<\/h1>\n

\u4e0d\u77e5\u9053\u5927\u5bb6\u662f\u5426\u719f\u6089\uff1f\u4eca\u5929\u6211\u5c06\u7ed9\u5927\u5bb6\u4ecb\u7ecd\u300aFlask \u6846\u67b6\u4e2d\u5982\u4f55\u4f7f\u7528 `url_for` \u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 URL\uff1f\u300b<\/span>\uff0c\u8fd9\u7bc7\u6587\u7ae0\u4e3b\u8981\u4f1a\u8bb2\u5230<\/span>\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u4f60\u5728\u770b\u5b8c\u672c\u7bc7\u6587\u7ae0\u540e\uff0c\u6709\u66f4\u597d\u7684\u5efa\u8bae\u6216\u8005\u53d1\u73b0\u54ea\u91cc\u6709\u95ee\u9898\uff0c\u5e0c\u671b\u5927\u5bb6\u90fd\u80fd\u79ef\u6781\u8bc4\u8bba\u6307\u51fa\uff0c\u8c22\u8c22\uff01\u5e0c\u671b\u6211\u4eec\u80fd\u4e00\u8d77\u52a0\u6cb9\u8fdb\u6b65\uff01<\/p>\n

<\/p>\n

flask \u6846\u67b6\u4e2d\u7684 url_for\uff1a\u5982\u4f55\u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 url<\/strong><\/p>\n

\u5728 flask \u6846\u67b6\u4e2d\uff0curl_for \u51fd\u6570\u7528\u4e8e\u751f\u6210\u6307\u5411\u7279\u5b9a\u89c6\u56fe\u51fd\u6570\u7684 url\u3002\u5982\u679c\u670d\u52a1\u5668\u672a\u4f7f\u7528\u6807\u51c6\u7aef\u53e3\uff08\u5982 80\uff09\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528 url_for \u7684 _scheme \u548c _external \u53c2\u6570\u6765\u751f\u6210\u5305\u542b\u7aef\u53e3\u53f7\u7684 url\u3002<\/p>\n

\u5728\u4f60\u7684\u60c5\u51b5\u4e0b\uff0c\u4f60\u9700\u8981\u5c06 _scheme \u8bbe\u7f6e\u4e3a\u4f60\u7684\u670d\u52a1\u5668\u5b9e\u9645\u4f7f\u7528\u7684\u534f\u8bae\uff08\u5f88\u53ef\u80fd\u662f http\uff09\uff0c\u5e76\u8bbe\u7f6e _external \u4e3a true \u4ee5\u6307\u5b9a url \u662f\u5916\u90e8\u7684\uff08\u5373\u5bf9\u4e8e\u5e94\u7528\u7a0b\u5e8f\u5916\u90e8\u7684\u7528\u6237\u662f\u53ef\u8bbf\u95ee\u7684\uff09\u3002<\/p>\n

\u4ee5\u4e0b\u4ee3\u7801\u6f14\u793a\u5982\u4f55\u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 url\uff1a<\/p>\n

from flask import Flask, render_template, redirect, url_for, request\n\napp = Flask(__name__)\n\n@app.route(\"\/\", methods=[\"GET\", \"POST\"])\ndef index():\n    if request.method == \"GET\":\n        return render_template(\"index.html\", comments=comments)\n    comments.append(request.form[\"contents\"])\n    return redirect(url_for('index', _scheme='http', _external=True))<\/pre>\n
\u8fd9\u5c06\u751f\u6210\u7c7b\u4f3c http:\/\/xxx.cn:81\/ \u8fd9\u6837\u7684 url\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300aFlask \u6846\u67b6\u4e2d\u5982\u4f55\u4f7f\u7528 `url_for` \u751f\u6210\u5e26\u6709\u7aef\u53e3\u53f7\u7684 URL\uff1f\u300b\u7684\u5185\u5bb9\u4ecb\u7ecd\u5c31\u5230\u6b64\u7ed3\u675f\uff0c\u5982\u679c\u6709\u4ec0\u4e48\u7591\u95ee\u6216\u8005\u5efa\u8bae\uff0c\u53ef\u4ee5\u5728\u516c\u4f17\u53f7\u4e0b\u591a\u591a\u56de\u590d\u4ea4\u6d41\uff1b\u6587\u4e2d\u82e5\u6709\u4e0d\u6b63\u4e4b\u5904\uff0c\u4e5f\u5e0c\u671b\u56de\u590d\u7559\u8a00\u4ee5\u544a\u77e5\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
Flask \u6846\u67b6\u4e2d\u5982\u4f55\u4f7f\u7528 `u...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-204188","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204188","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=204188"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/204188\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=204188"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=204188"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=204188"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}