{"id":200092,"date":"2025-05-06T08:38:17","date_gmt":"2025-05-06T00:38:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200092\/"},"modified":"2025-05-06T08:38:17","modified_gmt":"2025-05-06T00:38:17","slug":"%e6%b7%b1%e5%85%a5%e6%8e%a2%e8%ae%a8mysql%e8%bf%9e%e6%8e%a5%e6%95%b0%e7%9a%84%e5%90%ab%e4%b9%89%e5%92%8c%e5%85%b3%e9%94%ae%e6%80%a7","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200092\/","title":{"rendered":"\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u542b\u4e49\u548c\u5173\u952e\u6027"},"content":{"rendered":"

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

\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u542b\u4e49\u548c\u5173\u952e\u6027<\/h1>\n

MySQL\u8fde\u63a5\u6570\u662f\u6307\u540c\u65f6\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u7684\u5ba2\u6237\u7aef\u6570\u91cf\u3002\u5408\u7406\u8bbe\u7f6e\u8fde\u63a5\u6570\u5bf9\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u81f3\u5173\u91cd\u8981\u3002\u8fde\u63a5\u6570\u8bbe\u7f6e\u8fc7\u4f4e\u53ef\u80fd\u5bfc\u81f4\u670d\u52a1\u7aef\u65e0\u6cd5\u5904\u7406\u6240\u6709\u8bf7\u6c42\uff0c\u8fc7\u9ad8\u5219\u53ef\u80fd\u5360\u7528\u8fc7\u591a\u5185\u5b58\u8d44\u6e90\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u7cfb\u7edf\u5d29\u6e83\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u6982\u5ff5\u53ca\u5176\u91cd\u8981\u6027\uff0c\u5e76\u63d0\u4f9b\u67e5\u770b\u548c\u8bbe\u7f6e\u8fde\u63a5\u6570\u7684\u65b9\u6cd5\u3002<\/p>\n

MySQL\u4f5c\u4e3a\u4e00\u79cd\u5e38\u7528\u7684\u5173\u7cfb\u578b\u6570\u636e\u5e93\u7ba1\u7406\u7cfb\u7edf\uff0c\u5728Web\u5f00\u53d1\u9886\u57df\u4e2d\u88ab\u5e7f\u6cdb\u5e94\u7528\u3002\u5728\u4f7f\u7528MySQL\u65f6\uff0c\u4e00\u4e2a\u91cd\u8981\u7684\u6982\u5ff5\u5c31\u662f\u8fde\u63a5\u6570\u3002\u672c\u6587\u5c06\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u6982\u5ff5\u53ca\u5176\u91cd\u8981\u6027\uff0c\u5e76\u7ed3\u5408\u5177\u4f53\u7684\u4ee3\u7801\u793a\u4f8b\u8fdb\u884c\u8bf4\u660e\u3002<\/p>\n

1. MySQL\u8fde\u63a5\u6570\u7684\u6982\u5ff5<\/h3>\n

\u5728MySQL\u4e2d\uff0c\u8fde\u63a5\u6570\u6307\u7684\u662f\u540c\u65f6\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u7684\u5ba2\u6237\u7aef\u6570\u91cf\u3002\u5f53\u4e00\u4e2a\u5ba2\u6237\u7aef\u4e0eMySQL\u670d\u52a1\u5668\u5efa\u7acb\u8fde\u63a5\u65f6\uff0c\u4f1a\u5360\u7528\u4e00\u4e2a\u8fde\u63a5\u6570\u3002MySQL\u670d\u52a1\u5668\u6709\u4e00\u4e2a\u6700\u5927\u8fde\u63a5\u6570\u7684\u9650\u5236\uff0c\u8d85\u8fc7\u8fd9\u4e2a\u9650\u5236\uff0c\u65b0\u7684\u8fde\u63a5\u5c06\u65e0\u6cd5\u5efa\u7acb\u3002<\/p>\n

2. MySQL\u8fde\u63a5\u6570\u7684\u91cd\u8981\u6027<\/h3>\n

MySQL\u8fde\u63a5\u6570\u7684\u5408\u7406\u8bbe\u7f6e\u5bf9\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u8d77\u7740\u81f3\u5173\u91cd\u8981\u7684\u4f5c\u7528\u3002\u5982\u679c\u8fde\u63a5\u6570\u8bbe\u7f6e\u8fc7\u4f4e\uff0c\u53ef\u80fd\u4f1a\u5bfc\u81f4\u670d\u52a1\u7aef\u65e0\u6cd5\u5904\u7406\u6240\u6709\u7684\u8bf7\u6c42\uff1b\u5982\u679c\u8bbe\u7f6e\u8fc7\u9ad8\uff0c\u53ef\u80fd\u4f1a\u5360\u7528\u8fc7\u591a\u7684\u5185\u5b58\u8d44\u6e90\uff0c\u5bfc\u81f4\u6027\u80fd\u4e0b\u964d\u751a\u81f3\u7cfb\u7edf\u5d29\u6e83\u3002\u56e0\u6b64\uff0c\u5408\u7406\u8bbe\u7f6e\u8fde\u63a5\u6570\u80fd\u591f\u6709\u6548\u5730\u63d0\u9ad8\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u3002<\/p>\n

3. \u5982\u4f55\u67e5\u770b\u5f53\u524dMySQL\u8fde\u63a5\u6570<\/h3>\n

\u53ef\u4ee5\u901a\u8fc7\u4ee5\u4e0bSQL\u8bed\u53e5\u67e5\u770b\u5f53\u524dMySQL\u8fde\u63a5\u6570\uff1a<\/p>\n

SHOW STATUS LIKE 'Threads_connected';<\/pre>\n
\u8fd9\u6761\u8bed\u53e5\u5c06\u8fd4\u56de\u5f53\u524d\u8fde\u63a5\u5230MySQL\u670d\u52a1\u5668\u7684\u5ba2\u6237\u7aef\u6570\u91cf\u3002<\/p>\n
4. \u5982\u4f55\u8bbe\u7f6eMySQL\u7684\u6700\u5927\u8fde\u63a5\u6570<\/h3>\n
\u53ef\u4ee5\u901a\u8fc7\u4fee\u6539MySQL\u914d\u7f6e\u6587\u4ef6my.cnf<\/code>\u6765\u8bbe\u7f6e\u6700\u5927\u8fde\u63a5\u6570\u3002\u627e\u5230my.cnf<\/code>\u6587\u4ef6\u4e2d\u7684max_connections<\/code>\u53c2\u6570\uff0c\u4fee\u6539\u5176\u503c\u4e3a\u6240\u9700\u7684\u6700\u5927\u8fde\u63a5\u6570\u3002\u4f8b\u5982\uff0c\u5c06\u6700\u5927\u8fde\u63a5\u6570\u8bbe\u7f6e\u4e3a100\uff1a<\/p>\n
max_connections = 100<\/pre>\n
\u4fdd\u5b58\u6587\u4ef6\u5e76\u91cd\u542fMySQL\u670d\u52a1\u5668\uff0c\u65b0\u7684\u6700\u5927\u8fde\u63a5\u6570\u8bbe\u7f6e\u5c06\u751f\u6548\u3002<\/p>\n
5. \u793a\u4f8b\u4ee3\u7801<\/h3>\n
\u4ee5\u4e0b\u662f\u4e00\u4e2a\u7b80\u5355\u7684Python\u7a0b\u5e8f\uff0c\u7528\u4e8e\u6a21\u62df\u521b\u5efa\u591a\u4e2aMySQL\u8fde\u63a5\u5e76\u8fdb\u884c\u67e5\u8be2\u7684\u8fc7\u7a0b\uff1a<\/p>\n
import mysql.connector\n\n# \u5efa\u7acb\u8fde\u63a5\ndb = mysql.connector.connect(\n    host=\"localhost\",\n    user=\"root\",\n    password=\"password\",\n    database=\"test\"\n)\n\n# \u83b7\u53d6\u6e38\u6807\ncursor = db.cursor()\n\n# \u67e5\u8be2\u6570\u636e\ncursor.execute(\"SELECT * FROM users\")\n\n# \u6253\u5370\u7ed3\u679c\nresult = cursor.fetchall()\nfor row in result:\n    print(row)\n\n# \u5173\u95ed\u8fde\u63a5\ndb.close()<\/pre>\n
6. \u603b\u7ed3<\/h3>\n
\u901a\u8fc7\u672c\u6587\u7684\u4ecb\u7ecd\uff0c\u8bfb\u8005\u5e94\u8be5\u5bf9MySQL\u8fde\u63a5\u6570\u7684\u6982\u5ff5\u53ca\u5176\u91cd\u8981\u6027\u6709\u4e86\u66f4\u6df1\u5165\u7684\u7406\u89e3\u3002\u5408\u7406\u8bbe\u7f6eMySQL\u7684\u8fde\u63a5\u6570\u5bf9\u4e8e\u7cfb\u7edf\u7684\u7a33\u5b9a\u6027\u548c\u6027\u80fd\u81f3\u5173\u91cd\u8981\uff0c\u5f00\u53d1\u8005\u5e94\u8be5\u6839\u636e\u5b9e\u9645\u9700\u6c42\u548c\u7cfb\u7edf\u8d44\u6e90\u60c5\u51b5\u6765\u8bbe\u7f6e\u6700\u5927\u8fde\u63a5\u6570\uff0c\u4ece\u800c\u66f4\u597d\u5730\u5229\u7528MySQL\u7684\u5f3a\u5927\u529f\u80fd\u3002\u5e0c\u671b\u672c\u6587\u80fd\u591f\u5e2e\u52a9\u8bfb\u8005\u66f4\u597d\u5730\u7406\u89e3\u548c\u5e94\u7528MySQL\u8fde\u63a5\u6570\u76f8\u5173\u7684\u77e5\u8bc6\u3002<\/p>\n
\u4eca\u5929\u5173\u4e8e\u300a\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u542b\u4e49\u548c\u5173\u952e\u6027\u300b\u7684\u5185\u5bb9\u5c31\u4ecb\u7ecd\u5230\u8fd9\u91cc\u4e86\uff0c\u662f\u4e0d\u662f\u5b66\u8d77\u6765\u4e00\u76ee\u4e86\u7136\uff01\u60f3\u8981\u4e86\u89e3\u66f4\u591a\u5173\u4e8emysql,\u8fde\u63a5\u6570,\u91cd\u8981\u6027\u7684\u5185\u5bb9\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n
\n
\n <\/dt>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"
\u6df1\u5165\u63a2\u8ba8MySQL\u8fde\u63a5\u6570\u7684\u542b\u4e49\u548c...<\/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-200092","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200092","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=200092"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200092\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200092"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200092"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200092"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}