{"id":188820,"date":"2024-11-12T02:09:23","date_gmt":"2024-11-11T18:09:23","guid":{"rendered":"https:\/\/server.hk\/cnblog\/188820\/"},"modified":"2024-11-12T02:09:24","modified_gmt":"2024-11-11T18:09:24","slug":"%e6%8e%a2%e7%b4%a2%e7%b6%b2%e7%ab%99%e6%95%b8%e6%93%9a%e4%b9%8b%e6%ba%90-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%a1%e9%9b%86%e6%8a%80%e5%b7%a7-%e7%b6%b2%e7%ab%99-%e6%95%b8%e6%93%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/188820\/","title":{"rendered":"\u63a2\u7d22\u7db2\u7ad9\u6578\u64da\u4e4b\u6e90\u2014\u2014\u6578\u64da\u5eab\u63a1\u96c6\u6280\u5de7 (\u7db2\u7ad9 \u6578\u64da\u5eab \u63a1\u96c6)"},"content":{"rendered":"<h1 id=\"%e6%8e%a2%e7%b4%a2%e7%b6%b2%e7%ab%99%e6%95%b8%e6%93%9a%e4%b9%8b%e6%ba%90-%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%a1%e9%9b%86%e6%8a%80%e5%b7%a7-eElCMKMkAi\">\u63a2\u7d22\u7db2\u7ad9\u6578\u64da\u4e4b\u6e90\u2014\u2014\u6578\u64da\u5eab\u63a1\u96c6\u6280\u5de7<\/h1>\n<p>\u5728\u7576\u4eca\u6578\u64da\u9a45\u52d5\u7684\u6642\u4ee3\uff0c\u7db2\u7ad9\u6578\u64da\u7684\u63a1\u96c6\u8207\u5206\u6790\u5df2\u6210\u70ba\u4f01\u696d\u548c\u500b\u4eba\u4e0d\u53ef\u6216\u7f3a\u7684\u4e00\u90e8\u5206\u3002\u7121\u8ad6\u662f\u70ba\u4e86\u63d0\u5347\u7528\u6236\u9ad4\u9a57\u3001\u512a\u5316\u7db2\u7ad9\u5167\u5bb9\uff0c\u9084\u662f\u9032\u884c\u5e02\u5834\u7814\u7a76\uff0c\u6578\u64da\u5eab\u7684\u63a1\u96c6\u6280\u5de7\u90fd\u80fd\u5e6b\u52a9\u6211\u5011\u66f4\u597d\u5730\u7406\u89e3\u548c\u5229\u7528\u9019\u4e9b\u6578\u64da\u3002\u672c\u6587\u5c07\u6df1\u5165\u63a2\u8a0e\u6578\u64da\u5eab\u63a1\u96c6\u7684\u57fa\u672c\u6982\u5ff5\u3001\u6280\u5de7\u53ca\u5176\u61c9\u7528\u3002<\/p>\n<h2 id=\"%e4%bb%80%e9%ba%bc%e6%98%af%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%a1%e9%9b%86%ef%bc%9f-eElCMKMkAi\">\u4ec0\u9ebc\u662f\u6578\u64da\u5eab\u63a1\u96c6\uff1f<\/h2>\n<p>\u6578\u64da\u5eab\u63a1\u96c6\u662f\u6307\u5f9e\u5404\u7a2e\u4f86\u6e90\uff08\u5982\u7db2\u7ad9\u3001API\u3001\u793e\u4ea4\u5a92\u9ad4\u7b49\uff09\u63d0\u53d6\u6578\u64da\u4e26\u5c07\u5176\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\u7684\u904e\u7a0b\u3002\u9019\u4e00\u904e\u7a0b\u901a\u5e38\u6d89\u53ca\u6578\u64da\u7684\u6e05\u7406\u3001\u8f49\u63db\u548c\u52a0\u8f09\uff08ETL\uff09\uff0c\u4ee5\u78ba\u4fdd\u6578\u64da\u7684\u8cea\u91cf\u548c\u53ef\u7528\u6027\u3002\u6578\u64da\u5eab\u63a1\u96c6\u7684\u76ee\u7684\u662f\u70ba\u4e86\u5206\u6790\u548c\u6316\u6398\u6709\u50f9\u503c\u7684\u4fe1\u606f\uff0c\u5f9e\u800c\u652f\u6301\u6c7a\u7b56\u5236\u5b9a\u3002<\/p>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%a1%e9%9b%86%e7%9a%84%e6%8a%80%e5%b7%a7-eElCMKMkAi\">\u6578\u64da\u5eab\u63a1\u96c6\u7684\u6280\u5de7<\/h2>\n<h3 id=\"1-%e7%a2%ba%e5%ae%9a%e6%95%b8%e6%93%9a%e4%be%86%e6%ba%90-eElCMKMkAi\">1. \u78ba\u5b9a\u6578\u64da\u4f86\u6e90<\/h3>\n<p>\u5728\u958b\u59cb\u6578\u64da\u63a1\u96c6\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u78ba\u5b9a\u6578\u64da\u7684\u4f86\u6e90\u3002\u5e38\u898b\u7684\u6578\u64da\u4f86\u6e90\u5305\u62ec\uff1a<\/p>\n<ul>\n<li>\u7db2\u7ad9\uff1a\u901a\u904e\u7db2\u9801\u722c\u87f2\u6280\u8853\u63d0\u53d6\u7db2\u7ad9\u4e0a\u7684\u6578\u64da\u3002<\/li>\n<li>API\uff1a\u8a31\u591a\u7db2\u7ad9\u548c\u670d\u52d9\u63d0\u4f9bAPI\u63a5\u53e3\uff0c\u5141\u8a31\u7528\u6236\u4ee5\u7d50\u69cb\u5316\u7684\u65b9\u5f0f\u7372\u53d6\u6578\u64da\u3002<\/li>\n<li>\u793e\u4ea4\u5a92\u9ad4\uff1a\u901a\u904e\u793e\u4ea4\u5a92\u9ad4\u5e73\u53f0\u7684API\u7372\u53d6\u7528\u6236\u751f\u6210\u7684\u5167\u5bb9\u548c\u4e92\u52d5\u6578\u64da\u3002<\/li>\n<\/ul>\n<h3 id=\"2-%e4%bd%bf%e7%94%a8%e7%b6%b2%e9%a0%81%e7%88%ac%e8%9f%b2-eElCMKMkAi\">2. \u4f7f\u7528\u7db2\u9801\u722c\u87f2<\/h3>\n<p>\u7db2\u9801\u722c\u87f2\u662f\u4e00\u7a2e\u81ea\u52d5\u5316\u7a0b\u5e8f\uff0c\u7528\u65bc\u5f9e\u7db2\u7ad9\u4e0a\u63d0\u53d6\u6578\u64da\u3002\u4ee5\u4e0b\u662f\u4e00\u500b\u7c21\u55ae\u7684Python\u722c\u87f2\u793a\u4f8b\uff0c\u4f7f\u7528BeautifulSoup\u5eab\u4f86\u63d0\u53d6\u7db2\u9801\u5167\u5bb9\uff1a<\/p>\n<pre><code>import requests\nfrom bs4 import BeautifulSoup\n\nurl = 'https:\/\/example.com'\nresponse = requests.get(url)\nsoup = BeautifulSoup(response.text, 'html.parser')\n\n# \u63d0\u53d6\u6240\u6709\u6a19\u984c\ntitles = soup.find_all('h2')\nfor title in titles:\n    print(title.text)\n<\/code><\/pre>\n<p>\u9019\u6bb5\u4ee3\u78bc\u5c07\u5f9e\u6307\u5b9a\u7684\u7db2\u7ad9\u63d0\u53d6\u6240\u6709<\/p>\n<h2>\u6a19\u7c64\u4e2d\u7684\u6587\u672c\uff0c\u4e26\u5c07\u5176\u6253\u5370\u51fa\u4f86\u3002\u4f7f\u7528\u722c\u87f2\u6642\uff0c\u9700\u9075\u5faa\u7db2\u7ad9\u7684robots.txt\u898f\u7bc4\uff0c\u4ee5\u907f\u514d\u9055\u53cd\u7db2\u7ad9\u7684\u4f7f\u7528\u689d\u6b3e\u3002<\/p>\n<h3 id=\"3-%e6%95%b8%e6%93%9a%e6%b8%85%e7%90%86%e8%88%87%e8%bd%89%e6%8f%9b-eElCMKMkAi\">3. \u6578\u64da\u6e05\u7406\u8207\u8f49\u63db<\/h3>\n<p>\u5728\u6578\u64da\u63a1\u96c6\u5f8c\uff0c\u901a\u5e38\u9700\u8981\u5c0d\u6578\u64da\u9032\u884c\u6e05\u7406\u548c\u8f49\u63db\uff0c\u4ee5\u78ba\u4fdd\u5176\u8cea\u91cf\u3002\u9019\u5305\u62ec\u53bb\u9664\u91cd\u8907\u6578\u64da\u3001\u586b\u88dc\u7f3a\u5931\u503c\u4ee5\u53ca\u5c07\u6578\u64da\u8f49\u63db\u70ba\u9069\u5408\u5206\u6790\u7684\u683c\u5f0f\u3002\u53ef\u4ee5\u4f7f\u7528Python\u7684Pandas\u5eab\u4f86\u9032\u884c\u6578\u64da\u6e05\u7406\uff1a<\/p>\n<pre><code>import pandas as pd\n\n# \u8b80\u53d6\u6578\u64da\ndata = pd.read_csv('data.csv')\n\n# \u53bb\u9664\u91cd\u8907\u884c\ndata = data.drop_duplicates()\n\n# \u586b\u88dc\u7f3a\u5931\u503c\ndata.fillna(method='ffill', inplace=True)\n<\/code><\/pre>\n<h3 id=\"4-%e6%95%b8%e6%93%9a%e5%ad%98%e5%84%b2-eElCMKMkAi\">4. \u6578\u64da\u5b58\u5132<\/h3>\n<p>\u6e05\u7406\u5f8c\u7684\u6578\u64da\u9700\u8981\u5b58\u5132\u5728\u6578\u64da\u5eab\u4e2d\uff0c\u4ee5\u4fbf\u5f8c\u7e8c\u5206\u6790\u3002\u5e38\u898b\u7684\u6578\u64da\u5eab\u9078\u64c7\u5305\u62ecMySQL\u3001PostgreSQL\u548cMongoDB\u7b49\u3002\u4ee5\u4e0b\u662f\u4f7f\u7528Python\u7684SQLAlchemy\u5eab\u5c07\u6578\u64da\u5b58\u5132\u5230MySQL\u6578\u64da\u5eab\u7684\u793a\u4f8b\uff1a<\/p>\n<pre><code>from sqlalchemy import create_engine\n\n# \u5275\u5efa\u6578\u64da\u5eab\u9023\u63a5\nengine = create_engine('mysql+pymysql:\/\/user:password@localhost\/dbname')\n\n# \u5c07\u6578\u64da\u5beb\u5165\u6578\u64da\u5eab\ndata.to_sql('table_name', con=engine, if_exists='replace', index=False)\n<\/code><\/pre>\n<h2 id=\"%e6%95%b8%e6%93%9a%e5%ba%ab%e6%8e%a1%e9%9b%86%e7%9a%84%e6%87%89%e7%94%a8-eElCMKMkAi\">\u6578\u64da\u5eab\u63a1\u96c6\u7684\u61c9\u7528<\/h2>\n<p>\u6578\u64da\u5eab\u63a1\u96c6\u7684\u61c9\u7528\u7bc4\u570d\u5ee3\u6cdb\uff0c\u5305\u62ec\u4f46\u4e0d\u9650\u65bc\uff1a<\/p>\n<ul>\n<li>\u5e02\u5834\u7814\u7a76\uff1a\u5206\u6790\u7af6\u722d\u5c0d\u624b\u7684\u7db2\u7ad9\u6d41\u91cf\u548c\u7528\u6236\u884c\u70ba\u3002<\/li>\n<li>\u5167\u5bb9\u512a\u5316\uff1a\u6839\u64da\u7528\u6236\u53cd\u994b\u548c\u884c\u70ba\u6578\u64da\u8abf\u6574\u7db2\u7ad9\u5167\u5bb9\u3002<\/li>\n<li>\u5546\u696d\u667a\u80fd\uff1a\u901a\u904e\u6578\u64da\u5206\u6790\u652f\u6301\u4f01\u696d\u6c7a\u7b56\u3002<\/li>\n<\/ul>\n<h2 id=\"%e7%b8%bd%e7%b5%90-eElCMKMkAi\">\u7e3d\u7d50<\/h2>\n<p>\u6578\u64da\u5eab\u63a1\u96c6\u662f\u4e00\u9805\u91cd\u8981\u7684\u6280\u80fd\uff0c\u80fd\u5920\u5e6b\u52a9\u4f01\u696d\u548c\u500b\u4eba\u66f4\u597d\u5730\u7406\u89e3\u548c\u5229\u7528\u6578\u64da\u3002\u901a\u904e\u78ba\u5b9a\u6578\u64da\u4f86\u6e90\u3001\u4f7f\u7528\u7db2\u9801\u722c\u87f2\u3001\u9032\u884c\u6578\u64da\u6e05\u7406\u8207\u8f49\u63db\uff0c\u4ee5\u53ca\u5c07\u6578\u64da\u5b58\u5132\u5728\u5408\u9069\u7684\u6578\u64da\u5eab\u4e2d\uff0c\u6211\u5011\u53ef\u4ee5\u6709\u6548\u5730\u63d0\u53d6\u548c\u5206\u6790\u6709\u50f9\u503c\u7684\u4fe1\u606f\u3002\u82e5\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5b58\u5132\u89e3\u6c7a\u65b9\u6848\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u6216<a href=\"https:\/\/server.hk\">\u4e91\u670d\u52a1\u5668<\/a>\uff0c\u4ee5\u652f\u6301\u60a8\u7684\u6578\u64da\u5eab\u63a1\u96c6\u548c\u5206\u6790\u9700\u6c42\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u638c\u63e1\u7db2\u7ad9\u6578\u64da\u5eab\u63a1\u96c6\u6280\u5de7\uff0c\u63a2\u7d22\u6578\u64da\u4f86\u6e90\uff0c\u63d0\u5347\u6578\u64da\u5206\u6790\u80fd\u529b\uff0c\u52a9\u4f60\u5728\u6578\u64da\u9a45\u52d5\u7684\u4e16\u754c\u4e2d\u812b\u7a4e\u800c\u51fa\u3002<\/p>\n","protected":false},"author":0,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-188820","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188820","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"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=188820"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188820\/revisions"}],"predecessor-version":[{"id":188821,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/188820\/revisions\/188821"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=188820"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=188820"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=188820"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}