{"id":173835,"date":"2024-11-07T20:20:21","date_gmt":"2024-11-07T12:20:21","guid":{"rendered":"https:\/\/server.hk\/cnblog\/173835\/"},"modified":"2024-11-07T20:20:22","modified_gmt":"2024-11-07T12:20:22","slug":"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%bamysql-5-5%e7%9a%84%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc%e5%95%8f%e9%a1%8c","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/173835\/","title":{"rendered":"\u5982\u4f55\u89e3\u6c7aMySQL 5.5\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c"},"content":{"rendered":"<h1 id=\"%e5%a6%82%e4%bd%95%e8%a7%a3%e6%b1%bamysql-5-5%e7%9a%84%e4%b8%ad%e6%96%87%e4%ba%82%e7%a2%bc%e5%95%8f%e9%a1%8c-GfrhKEOOCf\">\u5982\u4f55\u89e3\u6c7aMySQL 5.5\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c<\/h1>\n<p>\u5728\u4f7f\u7528MySQL 5.5\u7684\u904e\u7a0b\u4e2d\uff0c\u8a31\u591a\u958b\u767c\u8005\u548c\u7cfb\u7d71\u7ba1\u7406\u54e1\u53ef\u80fd\u6703\u9047\u5230\u4e2d\u6587\u4e82\u78bc\u7684\u554f\u984c\u3002\u9019\u7a2e\u60c5\u6cc1\u901a\u5e38\u767c\u751f\u5728\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u4e0d\u6b63\u78ba\uff0c\u6216\u8005\u5728\u6578\u64da\u63d2\u5165\u548c\u67e5\u8a62\u6642\u672a\u80fd\u6b63\u78ba\u8655\u7406\u5b57\u7b26\u7de8\u78bc\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u5982\u4f55\u6709\u6548\u89e3\u6c7aMySQL 5.5\u4e2d\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u4e26\u63d0\u4f9b\u4e00\u4e9b\u5be6\u7528\u7684\u89e3\u6c7a\u65b9\u6848\u548c\u793a\u4f8b\u3002<\/p>\n<h2 id=\"%e4%ba%86%e8%a7%a3%e5%ad%97%e7%ac%a6%e9%9b%86%e5%92%8c%e6%8e%92%e5%ba%8f%e8%a6%8f%e5%89%87-GfrhKEOOCf\">\u4e86\u89e3\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247<\/h2>\n<p>\u5728\u89e3\u6c7a\u4e82\u78bc\u554f\u984c\u4e4b\u524d\uff0c\u9996\u5148\u9700\u8981\u4e86\u89e3MySQL\u4e2d\u7684\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u3002MySQL\u652f\u6301\u591a\u7a2e\u5b57\u7b26\u96c6\uff0c\u5176\u4e2d\u6700\u5e38\u7528\u7684\u5305\u62ec\uff1a<\/p>\n<ul>\n<li><code>utf8<\/code>\uff1a\u652f\u6301\u5927\u591a\u6578\u8a9e\u8a00\u7684\u5b57\u7b26\u96c6\uff0c\u4f46\u4e0d\u652f\u6301\u67d0\u4e9bUnicode\u5b57\u7b26\u3002<\/li>\n<li><code>utf8mb4<\/code>\uff1a\u652f\u6301\u5b8c\u6574\u7684Unicode\u5b57\u7b26\u96c6\uff0c\u5305\u62ec\u8868\u60c5\u7b26\u865f\u3002<\/li>\n<li><code>latin1<\/code>\uff1a\u4e3b\u8981\u7528\u65bc\u897f\u6b50\u8a9e\u8a00\uff0c\u4e0d\u652f\u6301\u4e2d\u6587\u3002<\/li>\n<\/ul>\n<p>\u5728MySQL\u4e2d\uff0c\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u53ef\u4ee5\u5728\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u7684\u5c64\u7d1a\u4e0a\u9032\u884c\u8a2d\u7f6e\u3002\u70ba\u4e86\u907f\u514d\u4e2d\u6587\u4e82\u78bc\uff0c\u5efa\u8b70\u4f7f\u7528<code>utf8mb4<\/code>\u5b57\u7b26\u96c6\u3002<\/p>\n<h2 id=\"%e6%aa%a2%e6%9f%a5%e5%92%8c%e8%a8%ad%e7%bd%ae%e5%ad%97%e7%ac%a6%e9%9b%86-GfrhKEOOCf\">\u6aa2\u67e5\u548c\u8a2d\u7f6e\u5b57\u7b26\u96c6<\/h2>\n<p>\u8981\u89e3\u6c7a\u4e2d\u6587\u4e82\u78bc\u554f\u984c\uff0c\u9996\u5148\u9700\u8981\u6aa2\u67e5\u7576\u524d\u6578\u64da\u5eab\u548c\u8868\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3002\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u6aa2\u67e5\uff1a<\/p>\n<pre><code>SHOW VARIABLES LIKE 'character_set%';<\/code><\/pre>\n<p>\u9019\u5c07\u986f\u793a\u7576\u524d\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\uff0c\u5305\u62ec<code>character_set_server<\/code>\u3001<code>character_set_database<\/code>\u548c<code>character_set_client<\/code>\u7b49\u3002\u5982\u679c\u767c\u73fe\u9019\u4e9b\u8a2d\u7f6e\u4e0d\u662f<code>utf8mb4<\/code>\uff0c\u5247\u9700\u8981\u9032\u884c\u66f4\u6539\u3002<\/p>\n<h3 id=\"%e6%9b%b4%e6%94%b9%e6%95%b8%e6%93%9a%e5%ba%ab%e5%ad%97%e7%ac%a6%e9%9b%86-GfrhKEOOCf\">\u66f4\u6539\u6578\u64da\u5eab\u5b57\u7b26\u96c6<\/h3>\n<p>\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0bSQL\u8a9e\u53e5\u4f86\u66f4\u6539\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\uff1a<\/p>\n<pre><code>ALTER DATABASE your_database_name CHARACTER SET = utf8mb4 COLLATE = utf8mb4_unicode_ci;<\/code><\/pre>\n<h3 id=\"%e6%9b%b4%e6%94%b9%e8%a1%a8%e5%92%8c%e5%88%97%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86-GfrhKEOOCf\">\u66f4\u6539\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6<\/h3>\n<p>\u5982\u679c\u9700\u8981\u66f4\u6539\u7279\u5b9a\u8868\u6216\u5217\u7684\u5b57\u7b26\u96c6\uff0c\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b\u8a9e\u53e5\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name CONVERT TO CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<p>\u5c0d\u65bc\u55ae\u500b\u5217\uff0c\u53ef\u4ee5\u4f7f\u7528\uff1a<\/p>\n<pre><code>ALTER TABLE your_table_name MODIFY your_column_name VARCHAR(255) CHARACTER SET utf8mb4 COLLATE utf8mb4_unicode_ci;<\/code><\/pre>\n<h2 id=\"%e7%a2%ba%e4%bf%9d%e6%87%89%e7%94%a8%e7%a8%8b%e5%ba%8f%e7%9a%84%e5%ad%97%e7%ac%a6%e9%9b%86%e8%a8%ad%e7%bd%ae%e6%ad%a3%e7%a2%ba-GfrhKEOOCf\">\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u6b63\u78ba<\/h2>\n<p>\u9664\u4e86\u6578\u64da\u5eab\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u5916\uff0c\u61c9\u7528\u7a0b\u5e8f\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u4e5f\u81f3\u95dc\u91cd\u8981\u3002\u5728\u9023\u63a5\u5230MySQL\u6578\u64da\u5eab\u6642\uff0c\u61c9\u78ba\u4fdd\u4f7f\u7528\u6b63\u78ba\u7684\u5b57\u7b26\u96c6\u3002\u4ee5\u4e0b\u662f\u4e00\u4e9b\u5e38\u898b\u7684\u7de8\u7a0b\u8a9e\u8a00\u5982\u4f55\u8a2d\u7f6e\u5b57\u7b26\u96c6\u7684\u793a\u4f8b\uff1a<\/p>\n<h3 id=\"php%e7%a4%ba%e4%be%8b-GfrhKEOOCf\">PHP\u793a\u4f8b<\/h3>\n<pre><code>mysqli_set_charset($connection, 'utf8mb4');<\/code><\/pre>\n<h3 id=\"java%e7%a4%ba%e4%be%8b-GfrhKEOOCf\">Java\u793a\u4f8b<\/h3>\n<pre><code>String url = \"jdbc:mysql:\/\/localhost:3306\/your_database_name?useUnicode=true&amp;characterEncoding=utf8mb4\";<\/code><\/pre>\n<h2 id=\"%e6%b8%ac%e8%a9%a6%e5%92%8c%e9%a9%97%e8%ad%89-GfrhKEOOCf\">\u6e2c\u8a66\u548c\u9a57\u8b49<\/h2>\n<p>\u5728\u5b8c\u6210\u4e0a\u8ff0\u8a2d\u7f6e\u5f8c\uff0c\u5efa\u8b70\u9032\u884c\u6e2c\u8a66\u4ee5\u78ba\u4fdd\u4e2d\u6587\u6578\u64da\u80fd\u5920\u6b63\u78ba\u5b58\u5132\u548c\u986f\u793a\u3002\u53ef\u4ee5\u63d2\u5165\u4e00\u4e9b\u4e2d\u6587\u6578\u64da\u4e26\u67e5\u8a62\uff0c\u78ba\u8a8d\u5176\u986f\u793a\u662f\u5426\u6b63\u5e38\u3002<\/p>\n<h2 id=\"%e7%b8%bd%e7%b5%90-GfrhKEOOCf\">\u7e3d\u7d50<\/h2>\n<p>\u89e3\u6c7aMySQL 5.5\u4e2d\u7684\u4e2d\u6587\u4e82\u78bc\u554f\u984c\u4e3b\u8981\u6d89\u53ca\u6b63\u78ba\u8a2d\u7f6e\u5b57\u7b26\u96c6\u548c\u6392\u5e8f\u898f\u5247\u3002\u901a\u904e\u6aa2\u67e5\u548c\u66f4\u6539\u6578\u64da\u5eab\u3001\u8868\u548c\u5217\u7684\u5b57\u7b26\u96c6\uff0c\u4ee5\u53ca\u78ba\u4fdd\u61c9\u7528\u7a0b\u5e8f\u7684\u5b57\u7b26\u96c6\u8a2d\u7f6e\u6b63\u78ba\uff0c\u53ef\u4ee5\u6709\u6548\u907f\u514d\u4e82\u78bc\u554f\u984c\u3002\u5982\u679c\u60a8\u9700\u8981\u7a69\u5b9a\u7684\u6578\u64da\u5eab\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528<a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a>\u670d\u52d9\uff0c\u4ee5\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u548c\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u89e3\u6c7aMySQL 5.5\u4e2d\u6587\u4e82\u78bc\u554f\u984c\u7684\u65b9\u6cd5\uff0c\u5305\u62ec\u5b57\u7b26\u96c6\u8a2d\u7f6e\u3001\u6578\u64da\u5eab\u7de8\u78bc\u8abf\u6574\u53ca\u67e5\u8a62\u512a\u5316\uff0c\u78ba\u4fdd\u4e2d\u6587\u6b63\u5e38\u986f\u793a\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-173835","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173835","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=173835"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173835\/revisions"}],"predecessor-version":[{"id":173836,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/173835\/revisions\/173836"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=173835"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=173835"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=173835"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}