{"id":186016,"date":"2024-11-11T02:24:20","date_gmt":"2024-11-10T18:24:20","guid":{"rendered":"https:\/\/server.hk\/cnblog\/186016\/"},"modified":"2024-11-11T02:24:21","modified_gmt":"2024-11-10T18:24:21","slug":"%e6%95%b8%e6%93%9a%e5%ba%abuid%e7%95%b0%e5%b8%b8%e5%95%8f%e9%a1%8c%e6%8e%92%e6%9f%a5%e8%88%87%e8%a7%a3%e6%b1%ba%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%abuid%e4%b8%8d%e7%ac%a6%ef%bc%89","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/186016\/","title":{"rendered":"\u6578\u64da\u5eabuid\u7570\u5e38\u554f\u984c\u6392\u67e5\u8207\u89e3\u6c7a\uff08\u6578\u64da\u5eabuid\u4e0d\u7b26\uff09"},"content":{"rendered":"<h1 id=\"%e6%95%b8%e6%93%9a%e5%ba%abuid%e7%95%b0%e5%b8%b8%e5%95%8f%e9%a1%8c%e6%8e%92%e6%9f%a5%e8%88%87%e8%a7%a3%e6%b1%ba%ef%bc%88%e6%95%b8%e6%93%9a%e5%ba%abuid%e4%b8%8d%e7%ac%a6%ef%bc%89-bnCqpZsXhY\">\u6578\u64da\u5eabUID\u7570\u5e38\u554f\u984c\u6392\u67e5\u8207\u89e3\u6c7a\uff08\u6578\u64da\u5eabUID\u4e0d\u7b26\uff09<\/h1>\n<p>\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\uff0cUID\uff08\u7528\u6236\u8b58\u5225\u78bc\uff09\u662f\u7528\u4f86\u552f\u4e00\u6a19\u8b58\u7528\u6236\u6216\u6578\u64da\u7684\u95dc\u9375\u5143\u7d20\u3002\u7136\u800c\uff0cUID\u7570\u5e38\u554f\u984c\u53ef\u80fd\u6703\u5c0e\u81f4\u6578\u64da\u4e0d\u4e00\u81f4\u3001\u7528\u6236\u7121\u6cd5\u8a2a\u554f\u6216\u7cfb\u7d71\u932f\u8aa4\u7b49\u554f\u984c\u3002\u672c\u6587\u5c07\u63a2\u8a0e\u6578\u64da\u5eabUID\u4e0d\u7b26\u7684\u5e38\u898b\u539f\u56e0\u53ca\u5176\u6392\u67e5\u8207\u89e3\u6c7a\u65b9\u6cd5\u3002<\/p>\n<h2 id=\"uid%e7%95%b0%e5%b8%b8%e7%9a%84%e5%b8%b8%e8%a6%8b%e5%8e%9f%e5%9b%a0-bnCqpZsXhY\">UID\u7570\u5e38\u7684\u5e38\u898b\u539f\u56e0<\/h2>\n<ul>\n<li><strong>\u6578\u64da\u5eab\u9077\u79fb\uff1a<\/strong>\u5728\u9032\u884c\u6578\u64da\u5eab\u9077\u79fb\u6642\uff0cUID\u53ef\u80fd\u56e0\u70ba\u4e0d\u540c\u7684\u6578\u64da\u5eab\u7cfb\u7d71\u6216\u7248\u672c\u800c\u4e0d\u4e00\u81f4\u3002<\/li>\n<li><strong>\u6578\u64da\u5eab\u8a2d\u8a08\u7f3a\u9677\uff1a<\/strong>\u5982\u679c\u6578\u64da\u5eab\u8a2d\u8a08\u4e0d\u7576\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4UID\u751f\u6210\u908f\u8f2f\u932f\u8aa4\uff0c\u5f9e\u800c\u7522\u751f\u91cd\u8907\u6216\u4e0d\u6b63\u78ba\u7684UID\u3002<\/li>\n<li><strong>\u4e26\u767c\u64cd\u4f5c\uff1a<\/strong>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0c\u82e5UID\u751f\u6210\u6a5f\u5236\u672a\u80fd\u59a5\u5584\u8655\u7406\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4UID\u885d\u7a81\u3002<\/li>\n<li><strong>\u624b\u52d5\u64cd\u4f5c\u932f\u8aa4\uff1a<\/strong>\u5728\u624b\u52d5\u63d2\u5165\u6578\u64da\u6642\uff0c\u82e5\u672a\u9075\u5faaUID\u751f\u6210\u898f\u5247\uff0c\u53ef\u80fd\u6703\u5c0e\u81f4UID\u4e0d\u7b26\u3002<\/li>\n<\/ul>\n<h2 id=\"uid%e7%95%b0%e5%b8%b8%e7%9a%84%e6%8e%92%e6%9f%a5%e6%ad%a5%e9%a9%9f-bnCqpZsXhY\">UID\u7570\u5e38\u7684\u6392\u67e5\u6b65\u9a5f<\/h2>\n<p>\u7576\u767c\u73feUID\u7570\u5e38\u6642\uff0c\u53ef\u4ee5\u6309\u7167\u4ee5\u4e0b\u6b65\u9a5f\u9032\u884c\u6392\u67e5\uff1a<\/p>\n<h3 id=\"1-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ba%ab%e6%97%a5%e8%aa%8c-bnCqpZsXhY\">1. \u6aa2\u67e5\u6578\u64da\u5eab\u65e5\u8a8c<\/h3>\n<p>\u9996\u5148\uff0c\u67e5\u770b\u6578\u64da\u5eab\u7684\u65e5\u8a8c\u6587\u4ef6\uff0c\u5c0b\u627e\u4efb\u4f55\u7570\u5e38\u64cd\u4f5c\u7684\u8a18\u9304\u3002\u9019\u4e9b\u65e5\u8a8c\u901a\u5e38\u6703\u63d0\u4f9b\u6709\u95dcUID\u751f\u6210\u548c\u4f7f\u7528\u7684\u8a73\u7d30\u4fe1\u606f\u3002<\/p>\n<h3 id=\"2-%e7%a2%ba%e8%aa%8duid%e7%94%9f%e6%88%90%e9%82%8f%e8%bc%af-bnCqpZsXhY\">2. \u78ba\u8a8dUID\u751f\u6210\u908f\u8f2f<\/h3>\n<p>\u6aa2\u67e5\u6578\u64da\u5eab\u4e2dUID\u7684\u751f\u6210\u908f\u8f2f\uff0c\u78ba\u4fdd\u5176\u7b26\u5408\u9810\u671f\u3002\u4f8b\u5982\uff0c\u82e5\u4f7f\u7528\u81ea\u589eID\uff0c\u9700\u78ba\u8a8d\u81ea\u589e\u8a2d\u7f6e\u662f\u5426\u6b63\u78ba\u3002<\/p>\n<pre><code>CREATE TABLE users (\n    id INT AUTO_INCREMENT PRIMARY KEY,\n    username VARCHAR(50) NOT NULL,\n    uid VARCHAR(36) NOT NULL UNIQUE\n);<\/code><\/pre>\n<h3 id=\"3-%e6%aa%a2%e6%9f%a5%e6%95%b8%e6%93%9a%e5%ae%8c%e6%95%b4%e6%80%a7-bnCqpZsXhY\">3. \u6aa2\u67e5\u6578\u64da\u5b8c\u6574\u6027<\/h3>\n<p>\u4f7f\u7528\u6578\u64da\u5eab\u7684\u5b8c\u6574\u6027\u6aa2\u67e5\u5de5\u5177\uff0c\u78ba\u4fddUID\u7684\u552f\u4e00\u6027\u548c\u6b63\u78ba\u6027\u3002\u53ef\u4ee5\u4f7f\u7528SQL\u67e5\u8a62\u4f86\u6aa2\u67e5\u91cd\u8907\u7684UID\uff1a<\/p>\n<pre><code>SELECT uid, COUNT(*)\nFROM users\nGROUP BY uid\nHAVING COUNT(*) &gt; 1;<\/code><\/pre>\n<h3 id=\"4-%e6%b8%ac%e8%a9%a6%e4%b8%a6%e7%99%bc%e6%83%85%e6%b3%81-bnCqpZsXhY\">4. \u6e2c\u8a66\u4e26\u767c\u60c5\u6cc1<\/h3>\n<p>\u5728\u9ad8\u4e26\u767c\u74b0\u5883\u4e0b\uff0c\u9032\u884c\u58d3\u529b\u6e2c\u8a66\u4ee5\u78ba\u4fddUID\u751f\u6210\u908f\u8f2f\u80fd\u5920\u6b63\u78ba\u8655\u7406\u591a\u500b\u8acb\u6c42\u3002\u53ef\u4ee5\u4f7f\u7528\u5de5\u5177\u5982Apache JMeter\u9032\u884c\u6e2c\u8a66\u3002<\/p>\n<h2 id=\"uid%e7%95%b0%e5%b8%b8%e7%9a%84%e8%a7%a3%e6%b1%ba%e6%96%b9%e6%a1%88-bnCqpZsXhY\">UID\u7570\u5e38\u7684\u89e3\u6c7a\u65b9\u6848<\/h2>\n<p>\u91dd\u5c0dUID\u7570\u5e38\u554f\u984c\uff0c\u53ef\u4ee5\u63a1\u53d6\u4ee5\u4e0b\u89e3\u6c7a\u65b9\u6848\uff1a<\/p>\n<h3 id=\"1-%e4%bf%ae%e6%ad%a3%e6%95%b8%e6%93%9a%e5%ba%ab%e8%a8%ad%e8%a8%88-bnCqpZsXhY\">1. \u4fee\u6b63\u6578\u64da\u5eab\u8a2d\u8a08<\/h3>\n<p>\u5982\u679c\u767c\u73fe\u6578\u64da\u5eab\u8a2d\u8a08\u5b58\u5728\u7f3a\u9677\uff0c\u61c9\u91cd\u65b0\u8a2d\u8a08UID\u751f\u6210\u908f\u8f2f\u3002\u4f8b\u5982\uff0c\u4f7f\u7528UUID\u4f5c\u70baUID\u53ef\u4ee5\u6709\u6548\u907f\u514d\u91cd\u8907\u554f\u984c\uff1a<\/p>\n<pre><code>INSERT INTO users (username, uid)\nVALUES ('user1', UUID());<\/code><\/pre>\n<h3 id=\"2-%e6%95%b8%e6%93%9a%e6%b8%85%e7%90%86-bnCqpZsXhY\">2. \u6578\u64da\u6e05\u7406<\/h3>\n<p>\u5c0d\u65bc\u5df2\u7d93\u5b58\u5728\u7684UID\u7570\u5e38\u6578\u64da\uff0c\u9700\u9032\u884c\u6e05\u7406\u3002\u53ef\u4ee5\u9078\u64c7\u522a\u9664\u91cd\u8907\u7684\u8a18\u9304\u6216\u66f4\u65b0UID\u4ee5\u78ba\u4fdd\u5176\u552f\u4e00\u6027\u3002<\/p>\n<h3 id=\"3-%e5%8a%a0%e5%bc%b7%e6%95%b8%e6%93%9a%e5%ba%ab%e7%b4%84%e6%9d%9f-bnCqpZsXhY\">3. \u52a0\u5f37\u6578\u64da\u5eab\u7d04\u675f<\/h3>\n<p>\u5728\u6578\u64da\u5eab\u4e2d\u8a2d\u7f6e\u552f\u4e00\u7d04\u675f\uff0c\u4ee5\u9632\u6b62\u672a\u4f86\u7684UID\u91cd\u8907\u554f\u984c\u3002\u4f8b\u5982\uff1a<\/p>\n<pre><code>ALTER TABLE users\nADD CONSTRAINT unique_uid UNIQUE (uid);<\/code><\/pre>\n<h2 id=\"%e7%b8%bd%e7%b5%90-bnCqpZsXhY\">\u7e3d\u7d50<\/h2>\n<p>UID\u7570\u5e38\u554f\u984c\u5728\u6578\u64da\u5eab\u7ba1\u7406\u4e2d\u662f\u5e38\u898b\u7684\u6311\u6230\uff0c\u901a\u904e\u7cfb\u7d71\u7684\u6392\u67e5\u548c\u6709\u6548\u7684\u89e3\u6c7a\u65b9\u6848\uff0c\u53ef\u4ee5\u6709\u6548\u5730\u6e1b\u5c11\u6b64\u985e\u554f\u984c\u7684\u767c\u751f\u3002\u5c0d\u65bc\u9700\u8981\u7a69\u5b9a\u548c\u9ad8\u6548\u6578\u64da\u5eab\u7ba1\u7406\u7684\u7528\u6236\uff0c\u9078\u64c7\u5408\u9069\u7684 <a href=\"https:\/\/server.hk\">VPS<\/a> \u65b9\u6848\u81f3\u95dc\u91cd\u8981\u3002\u7121\u8ad6\u662f\u6578\u64da\u5eab\u7684\u8a2d\u8a08\u3001\u7dad\u8b77\u9084\u662f\u6545\u969c\u6392\u67e5\uff0c\u9078\u64c7\u4e00\u500b\u53ef\u9760\u7684 <a href=\"https:\/\/server.hk\">\u9999\u6e2fVPS<\/a> \u63d0\u4f9b\u5546\u90fd\u80fd\u70ba\u60a8\u7684\u696d\u52d9\u63d0\u4f9b\u5f37\u6709\u529b\u7684\u652f\u6301\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u63a2\u8a0e\u6578\u64da\u5eabUID\u7570\u5e38\u554f\u984c\u7684\u6392\u67e5\u8207\u89e3\u6c7a\u65b9\u6cd5\uff0c\u5e6b\u52a9\u8b58\u5225\u548c\u4fee\u6b63UID\u4e0d\u7b26\u7684\u60c5\u6cc1\uff0c\u78ba\u4fdd\u6578\u64da\u4e00\u81f4\u6027\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-186016","post","type-post","status-publish","format-standard","hentry","category-database"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186016","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=186016"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186016\/revisions"}],"predecessor-version":[{"id":186017,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/186016\/revisions\/186017"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=186016"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=186016"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=186016"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}