{"id":199659,"date":"2025-05-06T08:10:18","date_gmt":"2025-05-06T00:10:18","guid":{"rendered":"https:\/\/server.hk\/cnblog\/199659\/"},"modified":"2025-05-06T08:10:18","modified_gmt":"2025-05-06T00:10:18","slug":"sql%e6%b3%a8%e5%85%a5%e7%9a%84%e9%a2%84%e9%98%b2%e6%96%b9%e6%b3%95%e6%9c%89%e5%93%aa%e4%ba%9b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/199659\/","title":{"rendered":"SQL\u6ce8\u5165\u7684\u9884\u9632\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f"},"content":{"rendered":"

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

SQL\u6ce8\u5165\u7684\u9884\u9632\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u90fd\u6253\u5f00\u8fd9\u7bc7\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\uff0c\u5b66\u4e0b\u53bb\u5427\uff01\u672c\u6587\u4e3b\u8981\u4f1a\u7ed9\u5927\u5bb6\u8bb2\u5230\u7b49\u7b49\u77e5\u8bc6\u70b9\uff0c\u5982\u679c\u5927\u5bb6\u5bf9\u672c\u6587\u6709\u597d\u7684\u5efa\u8bae\u6216\u8005\u770b\u5230\u6709\u4e0d\u8db3\u4e4b\u5904\uff0c\u975e\u5e38\u6b22\u8fce\u5927\u5bb6\u79ef\u6781\u63d0\u51fa\uff01\u5728\u540e\u7eed\u6587\u7ae0\u6211\u4f1a\u7ee7\u7eed\u66f4\u65b0\u76f8\u5173\u7684\u5185\u5bb9\uff0c\u5e0c\u671b\u5bf9\u5927\u5bb6\u90fd\u6709\u6240\u5e2e\u52a9\uff01<\/p>\n

\u9632\u6b62SQL\u6ce8\u5165\u7684\u65b9\u6cd5\u6709\u54ea\u51e0\u79cd\uff0c\u9700\u8981\u5177\u4f53\u4ee3\u7801\u793a\u4f8b<\/p>\n

SQL\u6ce8\u5165\u662f\u4e00\u79cd\u5e38\u89c1\u7684\u7f51\u7edc\u5b89\u5168\u5a01\u80c1\uff0c\u5b83\u53ef\u4ee5\u8ba9\u653b\u51fb\u8005\u901a\u8fc7\u6784\u9020\u6076\u610f\u7684\u8f93\u5165\u6765\u4fee\u6539\u3001\u5220\u9664\u6216\u8005\u6cc4\u9732\u6570\u636e\u5e93\u4e2d\u7684\u6570\u636e\u3002\u4e3a\u4e86\u6709\u6548\u9632\u6b62SQL\u6ce8\u5165\u653b\u51fb\uff0c\u5f00\u53d1\u4eba\u5458\u9700\u8981\u91c7\u53d6\u4e00\u7cfb\u5217\u7684\u5b89\u5168\u63aa\u65bd\u3002\u672c\u6587\u5c06\u4ecb\u7ecd\u51e0\u79cd\u5e38\u7528\u7684\u9632\u6b62SQL\u6ce8\u5165\u7684\u65b9\u6cd5\uff0c\u5e76\u7ed9\u51fa\u76f8\u5e94\u7684\u4ee3\u7801\u793a\u4f8b\u3002<\/p>\n

\u65b9\u6cd5\u4e00\uff1a\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2
\u53c2\u6570\u5316\u67e5\u8be2\u662f\u4e00\u79cd\u4f7f\u7528\u5360\u4f4d\u7b26\u66ff\u4ee3\u5b9e\u9645\u7684\u53c2\u6570\u503c\u7684\u65b9\u5f0f\uff0c\u4ece\u800c\u51cf\u5c11SQL\u6ce8\u5165\u53ef\u80fd\u6027\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u4f7f\u7528\u53c2\u6570\u5316\u67e5\u8be2\u7684Python\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n

import pymysql\n\n# \u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\nconn = pymysql.connect(host='localhost', user='root', password='123456', db='mydb')\n\n# \u521b\u5efa\u6e38\u6807\u5bf9\u8c61\ncursor = conn.cursor()\n\n# \u6267\u884c\u53c2\u6570\u5316\u67e5\u8be2\nusername = input(\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\uff1a\")\npassword = input(\"\u8bf7\u8f93\u5165\u5bc6\u7801\uff1a\")\nsql = \"SELECT * FROM user WHERE username = %s AND password = %s\"\ncursor.execute(sql, (username, password))\n\n# \u83b7\u53d6\u67e5\u8be2\u7ed3\u679c\nresult = cursor.fetchall()\n\n# \u5904\u7406\u67e5\u8be2\u7ed3\u679c\nif result:\n    print(\"\u767b\u5f55\u6210\u529f\uff01\")\nelse:\n    print(\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\")\n\n# \u5173\u95ed\u6e38\u6807\u548c\u6570\u636e\u5e93\u8fde\u63a5\ncursor.close()\nconn.close()<\/pre>\n
\u65b9\u6cd5\u4e8c\uff1a\u4f7f\u7528ORM\u6846\u67b6
ORM\uff08\u5bf9\u8c61\u5173\u7cfb\u6620\u5c04\uff09\u6846\u67b6\u53ef\u4ee5\u5c06\u6570\u636e\u5e93\u8868\u7684\u64cd\u4f5c\u8f6c\u6362\u4e3a\u9762\u5411\u5bf9\u8c61\u7684\u65b9\u6cd5\u8c03\u7528\uff0c\u6709\u6548\u5730\u907f\u514d\u4e86SQL\u6ce8\u5165\u7684\u95ee\u9898\u3002<\/p>\n
from sqlalchemy import create_engine\nfrom sqlalchemy.orm import sessionmaker\n\n# \u5efa\u7acb\u6570\u636e\u5e93\u8fde\u63a5\nengine = create_engine('mysql+pymysql:\/\/root:123456@localhost\/mydb')\nSession = sessionmaker(bind=engine)\nsession = Session()\n\n# \u6267\u884c\u67e5\u8be2\nusername = input(\"\u8bf7\u8f93\u5165\u7528\u6237\u540d\uff1a\")\npassword = input(\"\u8bf7\u8f93\u5165\u5bc6\u7801\uff1a\")\nresult = session.query(User).filter_by(username=username, password=password).first()\n\n# \u5904\u7406\u67e5\u8be2\u7ed3\u679c\nif result:\n    print(\"\u767b\u5f55\u6210\u529f\uff01\")\nelse:\n    print(\"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\")\n\n# \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\nsession.close()<\/pre>\n
\u65b9\u6cd5\u4e09\uff1a\u8f93\u5165\u9a8c\u8bc1\u548c\u8fc7\u6ee4
\u5bf9\u7528\u6237\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u5408\u6cd5\u6027\u9a8c\u8bc1\u548c\u8fc7\u6ee4\u662f\u9632\u6b62SQL\u6ce8\u5165\u7684\u91cd\u8981\u6b65\u9aa4\u3002\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684PHP\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n
<?php\n$username = $_POST['username'];\n$password = $_POST['password'];\n\n\/\/ \u9a8c\u8bc1\u8f93\u5165\u7684\u6570\u636e\nif (!preg_match(\"\/^[a-zA-Z0-9]{6,}$\/\", $username)) {\n    die(\"\u7528\u6237\u540d\u4e0d\u5408\u6cd5\uff01\");\n}\n\n\/\/ \u8fc7\u6ee4\u7279\u6b8a\u5b57\u7b26\n$username = addslashes($username);\n$password = addslashes($password);\n\n\/\/ \u6267\u884c\u67e5\u8be2\n$sql = \"SELECT * FROM user WHERE username = '$username' AND password = '$password'\";\n$result = mysqli_query($conn, $sql);\n\n\/\/ \u5904\u7406\u67e5\u8be2\u7ed3\u679c\nif (mysqli_num_rows($result) > 0) {\n    echo \"\u767b\u5f55\u6210\u529f\uff01\";\n} else {\n    echo \"\u7528\u6237\u540d\u6216\u5bc6\u7801\u9519\u8bef\uff01\";\n}\n\n\/\/ \u5173\u95ed\u6570\u636e\u5e93\u8fde\u63a5\nmysqli_close($conn);\n?><\/pre>\n
\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u6b63\u5219\u8868\u8fbe\u5f0f\u5bf9\u8f93\u5165\u7684\u7528\u6237\u540d\u8fdb\u884c\u9a8c\u8bc1\uff0c\u53ea\u5141\u8bb8\u5b57\u6bcd\u548c\u6570\u5b57\uff0c\u5e76\u4e14\u957f\u5ea6\u4e0d\u5f97\u5c11\u4e8e6\u4e2a\u5b57\u7b26\u3002\u540c\u65f6\uff0c\u901a\u8fc7\u4f7f\u7528addslashes\u51fd\u6570\u5bf9\u8f93\u5165\u7684\u6570\u636e\u8fdb\u884c\u8fc7\u6ee4\uff0c\u5c06\u7279\u6b8a\u5b57\u7b26\u8f6c\u4e49\uff0c\u4ece\u800c\u907f\u514d\u4e86SQL\u6ce8\u5165\u7684\u53ef\u80fd\u3002<\/p>\n
\u7efc\u4e0a\u6240\u8ff0\uff0c\u4e3a\u4e86\u9632\u6b62SQL\u6ce8\u5165\u653b\u51fb\uff0c\u5f00\u53d1\u4eba\u5458\u53ef\u4ee5\u91c7\u7528\u53c2\u6570\u5316\u67e5\u8be2\u3001\u4f7f\u7528ORM\u6846\u67b6\u4ee5\u53ca\u8f93\u5165\u9a8c\u8bc1\u548c\u8fc7\u6ee4\u7b49\u65b9\u6cd5\u3002\u540c\u65f6\uff0c\u5408\u7406\u7684\u6743\u9650\u63a7\u5236\u548c\u5b9a\u671f\u66f4\u65b0\u7cfb\u7edf\u8865\u4e01\u4e5f\u80fd\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7edf\u7684\u5b89\u5168\u6027\u3002<\/p>\n
\u597d\u4e86\uff0c\u672c\u6587\u5230\u6b64\u7ed3\u675f\uff0c\u5e26\u5927\u5bb6\u4e86\u89e3\u4e86\u300aSQL\u6ce8\u5165\u7684\u9884\u9632\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f\u300b\uff0c\u5e0c\u671b\u672c\u6587\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\uff01\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff0c\u7ed9\u5927\u5bb6\u5206\u4eab\u66f4\u591a\u6570\u636e\u5e93\u77e5\u8bc6\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
SQL\u6ce8\u5165\u7684\u9884\u9632\u65b9\u6cd5\u6709\u54ea\u4e9b\uff1f \u4e00...<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[101],"tags":[],"class_list":["post-199659","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199659","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=199659"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/199659\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=199659"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=199659"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=199659"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}