{"id":200897,"date":"2025-05-06T14:39:47","date_gmt":"2025-05-06T06:39:47","guid":{"rendered":"https:\/\/server.hk\/cnblog\/200897\/"},"modified":"2025-05-06T14:39:47","modified_gmt":"2025-05-06T06:39:47","slug":"%e4%b8%ba%e4%bb%80%e4%b9%88-mysql-%e5%bc%95%e5%85%a5-utf8mb4-%e6%95%b0%e6%8d%ae%e7%b1%bb%e5%9e%8b%ef%bc%9f","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/200897\/","title":{"rendered":"\u4e3a\u4ec0\u4e48 MySQL \u5f15\u5165 utf8mb4 \u6570\u636e\u7c7b\u578b\uff1f"},"content":{"rendered":"

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

\u4e3a\u4ec0\u4e48 MySQL \u5f15\u5165 utf8mb4 \u6570\u636e\u7c7b\u578b\uff1f<\/h1>\n

\u4e00\u5206\u8015\u8018\uff0c\u4e00\u5206\u6536\u83b7\uff01\u65e2\u7136\u6253\u5f00\u4e86\u8fd9\u7bc7\u6587\u7ae0\uff0c\u5c31\u575a\u6301\u770b\u4e0b\u53bb\u5427\uff01\u6587\u4e2d\u5185\u5bb9\u5305\u542b\u7b49\u7b49\u77e5\u8bc6\u70b9…\u5e0c\u671b\u4f60\u80fd\u5728\u9605\u8bfb\u672c\u6587\u540e\uff0c\u80fd\u771f\u771f\u5b9e\u5b9e\u5b66\u5230\u77e5\u8bc6\u6216\u8005\u5e2e\u4f60\u89e3\u51b3\u5fc3\u4e2d\u7684\u7591\u60d1\uff0c\u4e5f\u6b22\u8fce\u5927\u4f6c\u6216\u8005\u65b0\u4eba\u670b\u53cb\u4eec\u591a\u7559\u8a00\u8bc4\u8bba\uff0c\u591a\u7ed9\u5efa\u8bae\uff01\u8c22\u8c22\uff01<\/p>\n

<\/p>\n

MySQL \u4e2d utf8mb4 \u7684\u5b58\u50a8\u6027\u8d28<\/strong><\/p>\n

\u5728\u77e5\u4e4e\u7684\u8ba8\u8bba\u4e2d\uff0c\u6709\u4eba\u63d0\u51fa MySQL \u5f15\u5165 utf8mb4 \u6570\u636e\u7c7b\u578b\u7684\u539f\u56e0\u3002\u672c\u6587\u5c06\u63a2\u8ba8 utf8mb4 \u7684\u5b58\u50a8\u7279\u6027\uff0c\u4ee5\u56de\u7b54\u6b64\u95ee\u9898\u3002<\/p>\n

utf8mb3 \u4e0e utf8mb4 \u7684\u5b58\u50a8<\/strong><\/p>\n

MySQL \u4e2d\u539f\u672c\u7684 utf8mb3 \u5b58\u50a8\u5b57\u7b26\u96c6\u6700\u591a\u4e09\u4e2a\u5b57\u8282\u4e00\u4e2a\u5b57\u7b26\uff0c\u800c utf8mb4 \u652f\u6301\u56db\u4e2a\u5b57\u8282\u7684\u5b58\u50a8\u3002<\/p>\n

\u5728\u4e4b\u524d\uff0c\u7531\u4e8e MyISAM \u5b58\u50a8\u5f15\u64ce\u662f\u9ed8\u8ba4\u5f15\u64ce\uff0c\u5176\u5177\u6709\u9759\u6001\u8868\u683c\u7279\u6027\uff0c\u4f7f\u5f97 utf8mb3 \u7684\u5b58\u50a8\u957f\u5ea6\u56fa\u5b9a\u4e3a\u6700\u957f\u4e09\u4e2a\u5b57\u8282\u3002\u7136\u800c\uff0c\u5728 InnoDB \u6210\u4e3a\u9ed8\u8ba4\u5f15\u64ce\u540e\uff0c\u6b64\u7279\u6027\u4e0d\u518d\u9002\u7528\u3002\u56e0\u6b64\uff0c\u5728\u6240\u6709\u5f15\u64ce\u4e2d\uff0cutf8mb4 \u7684\u5b58\u50a8\u957f\u5ea6\u90fd\u662f\u53ef\u53d8\u7684\u3002<\/p>\n

BMP \u5b57\u7b26\u7684\u5b58\u50a8<\/strong><\/p>\n

\u5728 Unicode \u4e2d\uff0cBMP\uff08\u57fa\u672c\u591a\u8bed\u8a00\u5e73\u9762\uff09\u5305\u542b\u4e86\u7edd\u5927\u591a\u6570\u5e38\u89c1\u8bed\u8a00\u7684\u5e38\u89c1\u5b57\u7b26\u3002\u5bf9\u4e8e BMP \u5b57\u7b26\uff0cutf8mb3 \u548c utf8mb4 \u5177\u6709\u76f8\u540c\u7684\u5b58\u50a8\u7279\u6027\uff0c\u957f\u5ea6\u4e3a\u4e00\u5230\u4e09\u4e2a\u5b57\u8282\u3002\u8fd9\u610f\u5473\u7740\u5728\u5b58\u50a8 BMP \u5b57\u7b26\u65f6\uff0cutf8mb4 \u5e76\u4e0d\u4f1a\u5360\u636e\u989d\u5916\u7684\u5b58\u50a8\u7a7a\u95f4\u3002<\/p>\n

\u8865\u5145\u5b57\u7b26\u7684\u5b58\u50a8<\/strong><\/p>\n

\u9664\u4e86 BMP \u5b57\u7b26\u4e4b\u5916\uff0cUnicode \u8fd8\u5305\u542b\u4e00\u4e9b\u8865\u5145\u5b57\u7b26\uff0c\u8fd9\u4e9b\u5b57\u7b26\u4f4d\u4e8e BMP \u4e4b\u5916\u3002utf8mb3 \u65e0\u6cd5\u5b58\u50a8\u8865\u5145\u5b57\u7b26\uff0c\u800c utf8mb4 \u5219\u53ef\u4ee5\u3002\u5f53\u5c06 utf8mb3 \u5217\u8f6c\u6362\u4e3a utf8mb4 \u5217\u65f6\uff0c\u8fd9\u4e9b\u8865\u5145\u5b57\u7b26\u4e0d\u4f1a\u88ab\u8f6c\u6362\uff0c\u56e0\u4e3a utf8mb3 \u4e2d\u539f\u672c\u5c31\u4e0d\u5b58\u5728\u8fd9\u4e9b\u5b57\u7b26\u3002<\/p>\n

\u56e0\u6b64\uff0cutf8mb4 \u7684\u5b58\u50a8\u957f\u5ea6\u53d6\u51b3\u4e8e\u5b58\u50a8\u7684\u5b57\u7b26\u96c6\u3002\u5bf9\u4e8e BMP \u5b57\u7b26\uff0c\u5b83\u4e0e utf8mb3 \u957f\u5ea6\u76f8\u540c\u3002\u5bf9\u4e8e\u8865\u5145\u5b57\u7b26\uff0c\u5b83\u5219\u9700\u8981\u56db\u4e2a\u5b57\u8282\u7684\u5b58\u50a8\u7a7a\u95f4\u3002<\/p>\n

\u4ee5\u4e0a\u5c31\u662f\u300a\u4e3a\u4ec0\u4e48 MySQL \u5f15\u5165 utf8mb4 \u6570\u636e\u7c7b\u578b\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8\u4e3b\u673a\u5b9d\u8d1d\u516c\u4f17\u53f7\uff01<\/p>\n

\n
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\u4e3a\u4ec0\u4e48 MySQL \u5f15\u5165 utf...<\/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-200897","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200897","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=200897"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/200897\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=200897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=200897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=200897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}