<!DOCTYPE html><\/p>\n<html lang="en"><\/p>\n
<head><\/p>\n
<meta charset="UTF-8"><\/p>\n
<title>Download File<\/title><\/p>\n
<\/head><\/p>\n
<body><\/p>\n
<button id="downloadButton">Download File<\/button><\/p>\n
<script><\/p>\n
document.getElementById('downloadButton').addEventListener('click', function() {<\/p>\n
const filename = 'example.txt'; \/\/ \u8981\u4e0b\u8f7d\u7684\u6587\u4ef6\u540d<\/p>\n
const url = `http:\/\/localhost:5000\/download\/${filename}`;<\/p>\n
fetch(url)<\/p>\n
.then(response => {<\/p>\n
if (response.status === 200) {<\/p>\n
return response.blob();<\/p>\n
} else {<\/p>\n
throw new Error('File not found');<\/p>\n
}<\/p>\n
})<\/p>\n
.then(blob => {<\/p>\n
const link = document.createElement('a');<\/p>\n
link.href = URL.createObjectURL(blob);<\/p>\n
link.download = filename;<\/p>\n
document.body.appendChild(link);<\/p>\n
link.click();<\/p>\n
link.remove();<\/p>\n
})<\/p>\n
.catch(error => {<\/p>\n
console.error('Error:', error);<\/p>\n
});<\/p>\n
});<\/p>\n
<\/script><\/p>\n
<\/body><\/p>\n
<\/html><\/p>\n
<\/code><\/pre>\n<\/p>\n
\u5728\u8fd9\u6bb5\u4ee3\u7801\u4e2d\uff0c\u5f53\u7528\u6237\u70b9\u51fb\u6309\u94ae\u65f6\uff0c\u4f1a\u89e6\u53d1\u4e00\u4e2aAJAX\u8bf7\u6c42\u5230Flask\u670d\u52a1\u5668\uff0c\u4ee5\u4e0b\u8f7d\u6307\u5b9a\u7684\u6587\u4ef6\u3002\u4e0b\u8f7d\u6210\u529f\u540e\uff0c\u524d\u7aef\u4f1a\u521b\u5efa\u4e00\u4e2a\u4e34\u65f6\u7684\u94fe\u63a5\u5e76\u89e6\u53d1\u4e0b\u8f7d\u64cd\u4f5c\u3002<\/p>\n<\/p>\n
\u4e09\u3001\u786e\u4fdd\u5b89\u5168\u6027<\/h3>\n<\/p>\n
\u5f53\u6d89\u53ca\u5230\u6587\u4ef6\u4e0b\u8f7d\u65f6\uff0c\u5b89\u5168\u6027\u662f\u4e00\u4e2a\u975e\u5e38\u91cd\u8981\u7684\u65b9\u9762\u3002\u4f60\u9700\u8981\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u624d\u80fd\u4e0b\u8f7d\u6587\u4ef6\uff0c\u5e76\u4e14\u9632\u6b62\u76ee\u5f55\u904d\u5386\u653b\u51fb\u3002<\/p>\n<\/p>\n
\u9a8c\u8bc1\u7528\u6237\u6743\u9650<\/h4>\n<\/p>\n
\u4f60\u53ef\u4ee5\u5728Flask\u5e94\u7528\u4e2d\u6dfb\u52a0\u7528\u6237\u8ba4\u8bc1\u673a\u5236\uff0c\u786e\u4fdd\u53ea\u6709\u6388\u6743\u7528\u6237\u624d\u80fd\u8bbf\u95ee\u6587\u4ef6\u4e0b\u8f7dAPI\u3002\u4f8b\u5982\uff0c\u4f7f\u7528Flask-Login\u5e93\u5b9e\u73b0\u7528\u6237\u767b\u5f55\u8ba4\u8bc1\u3002<\/p>\n<\/p>\n
\u9632\u6b62\u76ee\u5f55\u904d\u5386\u653b\u51fb<\/h4>\n<\/p>\n
\u5728\u4e0b\u8f7d\u6587\u4ef6\u65f6\uff0c\u8981\u9a8c\u8bc1\u8bf7\u6c42\u7684\u6587\u4ef6\u540d\u662f\u5426\u6709\u6548\uff0c\u907f\u514d\u7528\u6237\u901a\u8fc7\u6784\u9020\u6076\u610f\u8def\u5f84\u6765\u4e0b\u8f7d\u670d\u52a1\u5668\u4e0a\u7684\u4efb\u610f\u6587\u4ef6\u3002<\/p>\n<\/p>\n
from flask import Flask, send_from_directory, request, abort<\/p>\nimport os<\/p>\n
app = Flask(__name__)<\/p>\n
\u914d\u7f6e\u6587\u4ef6\u4e0b\u8f7d\u76ee\u5f55<\/strong><\/h2>\nDOWNLOAD_DIRECTORY = os.path.join(os.getcwd(), 'downloads')<\/p>\n
\u5b9a\u4e49\u6587\u4ef6\u4e0b\u8f7dAPI<\/strong><\/h2>\n@app.route('\/download\/<filename>', methods=['GET'])<\/p>\n
def download_file(filename):<\/p>\n
if '..' in filename or filename.startswith('\/'):<\/p>\n
abort(400, "Invalid filename")<\/p>\n
try:<\/p>\n
return send_from_directory(DOWNLOAD_DIRECTORY, filename, as_attachment=True)<\/p>\n
except FileNotFoundError:<\/p>\n
return "File not found", 404<\/p>\n
if __name__ == '__main__':<\/p>\n
app.run(debug=True)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u4e0a\u8ff0\u4ee3\u7801\u901a\u8fc7\u68c0\u67e5\u6587\u4ef6\u540d\u4e2d\u662f\u5426\u5305\u542b..<\/code>\u6216\u4ee5\/<\/code>\u5f00\u5934\u6765\u9632\u6b62\u76ee\u5f55\u904d\u5386\u653b\u51fb\u3002<\/p>\n<\/p>\n\u56db\u3001\u8fdb\u4e00\u6b65\u4f18\u5316\u548c\u6269\u5c55<\/h3>\n<\/p>\n
\u652f\u6301\u66f4\u591a\u6587\u4ef6\u7c7b\u578b<\/h4>\n<\/p>\n
\u4f60\u53ef\u4ee5\u6269\u5c55Flask\u5e94\u7528\u4ee5\u652f\u6301\u66f4\u591a\u6587\u4ef6\u7c7b\u578b\u4e0b\u8f7d\u3002\u901a\u8fc7\u4fee\u6539API\u63a5\u53e3\uff0c\u53ef\u4ee5\u652f\u6301\u4e0d\u540c\u7c7b\u578b\u7684\u6587\u4ef6\uff0c\u5982\u56fe\u7247\u3001\u6587\u6863\u7b49\u3002<\/p>\n<\/p>\n
from flask import Flask, send_from_directory, request, abort<\/p>\nimport os<\/p>\n
app = Flask(__name__)<\/p>\n
\u914d\u7f6e\u6587\u4ef6\u4e0b\u8f7d\u76ee\u5f55<\/strong><\/h2>\nDOWNLOAD_DIRECTORY = os.path.join(os.getcwd(), 'downloads')<\/p>\n
\u5b9a\u4e49\u6587\u4ef6\u4e0b\u8f7dAPI<\/strong><\/h2>\n@app.route('\/download\/<path:filename>', methods=['GET'])<\/p>\n
def download_file(filename):<\/p>\n
if '..' in filename or filename.startswith('\/'):<\/p>\n
abort(400, "Invalid filename")<\/p>\n
try:<\/p>\n
return send_from_directory(DOWNLOAD_DIRECTORY, filename, as_attachment=True)<\/p>\n
except FileNotFoundError:<\/p>\n
return "File not found", 404<\/p>\n
if __name__ == '__main__':<\/p>\n
app.run(debug=True)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u6dfb\u52a0\u66f4\u591a\u529f\u80fd<\/h4>\n<\/p>\n
\u4f60\u53ef\u4ee5\u5728Flask\u5e94\u7528\u4e2d\u6dfb\u52a0\u66f4\u591a\u529f\u80fd\uff0c\u5982\u65e5\u5fd7\u8bb0\u5f55\u3001\u6587\u4ef6\u4e0b\u8f7d\u7edf\u8ba1\u7b49\uff0c\u4ee5\u4fbf\u66f4\u597d\u5730\u7ba1\u7406\u548c\u76d1\u63a7\u6587\u4ef6\u4e0b\u8f7d\u3002<\/p>\n<\/p>\n
from flask import Flask, send_from_directory, request, abort<\/p>\nimport os<\/p>\n
import logging<\/p>\n
app = Flask(__name__)<\/p>\n
\u914d\u7f6e\u6587\u4ef6\u4e0b\u8f7d\u76ee\u5f55<\/strong><\/h2>\nDOWNLOAD_DIRECTORY = os.path.join(os.getcwd(), 'downloads')<\/p>\n
\u914d\u7f6e\u65e5\u5fd7\u8bb0\u5f55<\/strong><\/h2>\nlogging.basicConfig(filename='download.log', level=logging.INFO)<\/p>\n
\u5b9a\u4e49\u6587\u4ef6\u4e0b\u8f7dAPI<\/strong><\/h2>\n@app.route('\/download\/<path:filename>', methods=['GET'])<\/p>\n
def download_file(filename):<\/p>\n
if '..' in filename or filename.startswith('\/'):<\/p>\n
abort(400, "Invalid filename")<\/p>\n
try:<\/p>\n
# \u8bb0\u5f55\u4e0b\u8f7d\u8bf7\u6c42<\/p>\n
logging.info(f"File downloaded: {filename}")<\/p>\n
return send_from_directory(DOWNLOAD_DIRECTORY, filename, as_attachment=True)<\/p>\n
except FileNotFoundError:<\/p>\n
return "File not found", 404<\/p>\n
if __name__ == '__main__':<\/p>\n
app.run(debug=True)<\/p>\n
<\/code><\/pre>\n<\/p>\n
\u901a\u8fc7\u4e0a\u8ff0\u4ee3\u7801\uff0cFlask\u5e94\u7528\u4f1a\u5c06\u6bcf\u6b21\u6587\u4ef6\u4e0b\u8f7d\u8bf7\u6c42\u8bb0\u5f55\u5230\u65e5\u5fd7\u6587\u4ef6\u4e2d\uff0c\u4fbf\u4e8e\u540e\u7eed\u5206\u6790\u548c\u7ba1\u7406\u3002<\/p>\n<\/p>\n
\u7ed3\u8bba<\/h3>\n<\/p>\n
\u901a\u8fc7\u4e0a\u8ff0\u6b65\u9aa4\uff0c\u6211\u4eec\u5b9e\u73b0\u4e86\u5728JavaScript\u4e2d\u8c03\u7528Python\u6587\u4ef6\u4e0b\u8f7d\u7684\u529f\u80fd\u3002\u4f7f\u7528Flask\u6846\u67b6\u521b\u5efaAPI\u3001\u8c03\u7528API\u8fdb\u884c\u6587\u4ef6\u4e0b\u8f7d\u3001\u4f7f\u7528AJAX\u8bf7\u6c42\u4e0e\u670d\u52a1\u5668\u7aef\u4ea4\u4e92\u3001\u786e\u4fdd\u5b89\u5168\u6027<\/strong>\u662f\u5b9e\u73b0\u8fd9\u4e00\u529f\u80fd\u7684\u5173\u952e\u6b65\u9aa4\u3002\u901a\u8fc7\u8fdb\u4e00\u6b65\u4f18\u5316\u548c\u6269\u5c55\uff0c\u53ef\u4ee5\u4f7f\u8fd9\u4e00\u529f\u80fd\u66f4\u52a0\u5b8c\u5584\u548c\u5b89\u5168\u3002\u5e0c\u671b\u8fd9\u4e9b\u5185\u5bb9\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002<\/p>\n<\/p>\n\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n \u5982\u4f55\u5728JavaScript\u4e2d\u8c03\u7528Python\u811a\u672c\u8fdb\u884c\u6587\u4ef6\u4e0b\u8f7d\uff1f<\/strong>
\u5728JavaScript\u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7AJAX\u8bf7\u6c42\u6216Fetch API\u4e0e\u670d\u52a1\u5668\u8fdb\u884c\u4ea4\u4e92\uff0c\u8c03\u7528Python\u811a\u672c\u6765\u5904\u7406\u6587\u4ef6\u4e0b\u8f7d\u3002\u901a\u5e38\uff0c\u60a8\u9700\u8981\u5728\u670d\u52a1\u5668\u4e0a\u8fd0\u884c\u4e00\u4e2aPython web\u6846\u67b6\uff08\u5982Flask\u6216Django\uff09\uff0c\u5e76\u5c06\u6587\u4ef6\u4e0b\u8f7d\u7684\u8bf7\u6c42\u53d1\u9001\u5230\u76f8\u5e94\u7684\u7aef\u70b9\u3002Python\u811a\u672c\u5c06\u5904\u7406\u8bf7\u6c42\u5e76\u8fd4\u56de\u6587\u4ef6\u4f9b\u4e0b\u8f7d\u3002<\/p>\n\u4f7f\u7528Python Flask\u6846\u67b6\u5b9e\u73b0\u6587\u4ef6\u4e0b\u8f7d\u7684\u57fa\u672c\u6b65\u9aa4\u662f\u4ec0\u4e48\uff1f<\/strong>
\u4f7f\u7528Flask\u6846\u67b6\u53ef\u4ee5\u8f7b\u677e\u5b9e\u73b0\u6587\u4ef6\u4e0b\u8f7d\u3002\u9996\u5148\u9700\u8981\u8bbe\u7f6e\u4e00\u4e2a\u8def\u7531\u6765\u5904\u7406\u4e0b\u8f7d\u8bf7\u6c42\uff0c\u7136\u540e\u5728\u8def\u7531\u4e2d\u4f7f\u7528send_file<\/code>\u6216send_from_directory<\/code>\u51fd\u6570\u6765\u8fd4\u56de\u6587\u4ef6\u3002\u786e\u4fdd\u5728JavaScript\u4e2d\u4f7f\u7528Fetch API\u6216XMLHttpRequest\u5411\u8be5\u8def\u7531\u53d1\u9001\u8bf7\u6c42\uff0c\u4ee5\u4fbf\u542f\u52a8\u4e0b\u8f7d\u3002<\/p>\n\u5728\u8c03\u7528Python\u811a\u672c\u65f6\uff0c\u5982\u4f55\u5904\u7406\u8de8\u57df\u8bf7\u6c42\u95ee\u9898\uff1f<\/strong>
\u5982\u679cJavaScript\u548cPython\u811a\u672c\u4e0d\u5728\u540c\u4e00\u4e2a\u57df\u540d\u4e0b\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u8de8\u57df\u8d44\u6e90\u5171\u4eab\uff08CORS\uff09\u95ee\u9898\u3002\u53ef\u4ee5\u5728Python\u7684Flask\u6216Django\u4e2d\u914d\u7f6eCORS\uff0c\u5141\u8bb8\u7279\u5b9a\u7684\u57df\u540d\u8fdb\u884c\u8bf7\u6c42\u3002\u901a\u5e38\u53ef\u4ee5\u4f7f\u7528flask-cors<\/code>\u5305\u6216Django\u7684CORS\u4e2d\u95f4\u4ef6\u6765\u89e3\u51b3\u8fd9\u4e00\u95ee\u9898\uff0c\u786e\u4fddJavaScript\u80fd\u591f\u6210\u529f\u8c03\u7528Python\u670d\u52a1\u3002<\/p>\n\u5982\u4f55\u786e\u4fdd\u4e0b\u8f7d\u7684\u6587\u4ef6\u683c\u5f0f\u6b63\u786e\u4e14\u5b89\u5168\uff1f<\/strong>
\u5728Python\u811a\u672c\u4e2d\uff0c\u786e\u4fdd\u5728\u8fd4\u56de\u6587\u4ef6\u65f6\u8bbe\u7f6e\u6b63\u786e\u7684Content-Type<\/code>\uff0c\u4ee5\u4fbf\u6d4f\u89c8\u5668\u80fd\u591f\u8bc6\u522b\u6587\u4ef6\u683c\u5f0f\u3002\u6b64\u5916\uff0c\u5efa\u8bae\u68c0\u67e5\u6587\u4ef6\u7684\u5b89\u5168\u6027\uff0c\u786e\u4fdd\u7528\u6237\u53ea\u80fd\u4e0b\u8f7d\u4ed6\u4eec\u6709\u6743\u9650\u8bbf\u95ee\u7684\u6587\u4ef6\uff0c\u9632\u6b62\u6f5c\u5728\u7684\u5b89\u5168\u6f0f\u6d1e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5728JS\u91cc\u8c03\u7528Python\u6587\u4ef6\u4e0b\u8f7d\u53ef\u4ee5\u901a\u8fc7\u4f7f\u7528Flask\u6846\u67b6\u521b\u5efaAPI\u3001\u8c03\u7528API\u8fdb\u884c\u6587\u4ef6\u4e0b\u8f7d\u3001\u4f7f\u7528AJAX\u8bf7\u6c42 […]","protected":false},"author":3,"featured_media":1046046,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[37],"tags":[],"acf":[],"_links":{"self":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1046032"}],"collection":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/comments?post=1046032"}],"version-history":[{"count":"1","href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1046032\/revisions"}],"predecessor-version":[{"id":1046049,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/posts\/1046032\/revisions\/1046049"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media\/1046046"}],"wp:attachment":[{"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/media?parent=1046032"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/categories?post=1046032"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/docs.pingcode.com\/wp-json\/wp\/v2\/tags?post=1046032"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"\u5982\u4f55\u5728js\u91cc\u8c03\u7528python\u6587\u4ef6\u4e0b\u8f7d\"](\"https:\/\/cdn-docs.pingcode.com\/wp-content\/uploads\/2024\/12\/5da14c10-2e6e-439c-92d2-6bbfee85ac6c.webp?x-oss-process=image\/auto-orient,1\/format,webp\")
<\/p>\n