{"id":206023,"date":"2025-06-12T09:29:17","date_gmt":"2025-06-12T01:29:17","guid":{"rendered":"https:\/\/server.hk\/cnblog\/206023\/"},"modified":"2025-06-12T09:29:17","modified_gmt":"2025-06-12T01:29:17","slug":"%e4%bd%bf%e7%94%a8-ent-orm-%e8%bf%9b%e8%a1%8c%e6%95%b0%e6%8d%ae%e8%bf%81%e7%a7%bb%e6%97%b6%ef%bc%8c%e5%a6%82%e4%bd%95%e8%a7%a3%e5%86%b3-string-%e7%b1%bb%e5%9e%8b%e9%95%bf%e5%ba%a6%e6%9c%aa%e5%ae%9a","status":"publish","type":"post","link":"https:\/\/server.hk\/cnblog\/206023\/","title":{"rendered":"\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f"},"content":{"rendered":"<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01,<br \/>\n<img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241031\/17303854356723961beffbf.jpg\" class=\"aligncenter\">,<br \/>\n<strong>golang ent \u6570\u636e\u8fc1\u79fb\uff1astring \u7c7b\u578b\u957f\u5ea6\u8bbe\u5b9a<\/strong>,\u5728\u4f7f\u7528 ent \u751f\u6001\u4e2d\u7684 ent orm \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230 string \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\u3002\u5f53\u8fd0\u884c\u751f\u6210\u6570\u636e\u547d\u4ee4\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0 &#8220;specified key was too long; max key length is 1000 bytes&#8221; \u7684\u9519\u8bef\u3002,\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 schematype \u81ea\u5b9a\u4e49\u7c7b\u578b\u6620\u5c04\u3002\u901a\u8fc7 schematype\uff0c\u53ef\u4ee5\u4e3a\u4e0d\u540c\u6570\u636e\u5e93\u540e\u7aef\u6307\u5b9a\u4e0d\u540c\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e mysql \u540e\u7aef\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u8bbe\u7f6e\uff1a,\u5728\u8be5\u8bbe\u7f6e\u4e2d\uff0c\u6307\u5b9a\u4e86 mysql \u540e\u7aef\u7684\u7c7b\u578b\u4e3a &#8220;varchar(100)&#8221;, \u89e3\u51b3\u4e86\u957f\u5ea6\u9650\u5236\u95ee\u9898\u3002,\u4ee5\u4e0a\u5c31\u662f\u300a\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01,golang ent \u6570\u636e\u8fc1\u79fb\uff1astring \u7c7b\u578b\u957f\u5ea6\u8bbe\u5b9a,IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01,<br \/>\n<b><\/b> <\/p>\n<p>\u5f53\u524d\u4f4d\u7f6e\uff1a <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span>  <span>&gt;<\/span> <span>\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f<\/span><\/p>\n<h1>\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f<\/h1>\n<p><span>2024-10-31 22:37:32<\/span><br \/>\n<span><i><\/i>0\u6d4f\u89c8<\/span><br \/>\n<span style=\"cursor: pointer\"><i><\/i>\u6536\u85cf<\/span> <\/p>\n<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55\u66f4\u65b0\u901f\u5ea6\u66f4\u5feb\uff0c\u4e00\u65e6\u505c\u6b62\u4e86\u5b66\u4e60\uff0c\u5f88\u5feb\u5c31\u4f1a\u88ab\u884c\u4e1a\u6240\u6dd8\u6c70\u3002\u6240\u4ee5\u6211\u4eec\u9700\u8981\u8e0f\u8e0f\u5b9e\u5b9e\u7684\u4e0d\u65ad\u5b66\u4e60\uff0c\u7cbe\u8fdb\u81ea\u5df1\u7684\u6280\u672f\uff0c\u5c24\u5176\u662f\u521d\u5b66\u8005\u3002\u4eca\u5929GOLANG\u7ed9\u5927\u5bb6\u6574\u7406\u4e86\u300a\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f\u300b\uff0c\u804a\u804a\uff0c\u6211\u4eec\u4e00\u8d77\u6765\u770b\u770b\u5427\uff01<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241031\/17303854356723961beffbf.jpg\" class=\"aligncenter\"><\/p>\n<p><strong>golang ent \u6570\u636e\u8fc1\u79fb\uff1astring \u7c7b\u578b\u957f\u5ea6\u8bbe\u5b9a<\/strong><\/p>\n<p>\u5728\u4f7f\u7528 ent \u751f\u6001\u4e2d\u7684 ent orm \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u53ef\u80fd\u4f1a\u9047\u5230 string \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\u3002\u5f53\u8fd0\u884c\u751f\u6210\u6570\u636e\u547d\u4ee4\u65f6\uff0c\u53ef\u80fd\u4f1a\u51fa\u73b0 &#8220;specified key was too long; max key length is 1000 bytes&#8221; \u7684\u9519\u8bef\u3002<\/p>\n<p>\u89e3\u51b3\u8fd9\u4e2a\u95ee\u9898\u7684\u65b9\u6cd5\u662f\u4f7f\u7528 schematype \u81ea\u5b9a\u4e49\u7c7b\u578b\u6620\u5c04\u3002\u901a\u8fc7 schematype\uff0c\u53ef\u4ee5\u4e3a\u4e0d\u540c\u6570\u636e\u5e93\u540e\u7aef\u6307\u5b9a\u4e0d\u540c\u7684\u7c7b\u578b\u3002\u4f8b\u5982\uff0c\u5bf9\u4e8e mysql \u540e\u7aef\uff0c\u53ef\u4ee5\u4f7f\u7528\u5982\u4e0b\u8bbe\u7f6e\uff1a<\/p>\n<pre>field.String(\"path\").SchemaType(map[string]string{\n    dialect.MySQL: \"varchar(100)\",\n}).Unique(),<\/pre>\n<p>\u5728\u8be5\u8bbe\u7f6e\u4e2d\uff0c\u6307\u5b9a\u4e86 mysql \u540e\u7aef\u7684\u7c7b\u578b\u4e3a &#8220;varchar(100)&#8221;, \u89e3\u51b3\u4e86\u957f\u5ea6\u9650\u5236\u95ee\u9898\u3002<\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u300a\u4f7f\u7528 Ent ORM \u8fdb\u884c\u6570\u636e\u8fc1\u79fb\u65f6\uff0c\u5982\u4f55\u89e3\u51b3 String \u7c7b\u578b\u957f\u5ea6\u672a\u5b9a\u4e49\u7684\u95ee\u9898\uff1f\u300b\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u5173\u4e8e\u7684\u8d44\u6599\u8bf7\u5173\u6ce8GOLANG\u516c\u4f17\u53f7\uff01<\/p>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u7b2c\u4e8c\u5c4a\u4e2d\u82af\u56fd\u9645\u56db\u5730\u8054\u52a8\u51c0\u6ee9\u516c\u76ca\u6d3b\u52a8\u987a\u5229\u4e3e\u884c\n <\/dd>\n<\/dl>\n<dl>\n<dt>\n <\/dt>\n<dd>\n   \u5982\u4f55\u4f7f\u7528HTML\u548cJavaScript\u5c061-12\u6708\u6309\u5f53\u524d\u6708\u4efd\u6392\u5e8f\uff1f\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>IT\u884c\u4e1a\u76f8\u5bf9\u4e8e\u4e00\u822c\u4f20\u7edf\u884c\u4e1a\uff0c\u53d1\u5c55&#46;&#46;&#46;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4925],"tags":[],"class_list":["post-206023","post","type-post","status-publish","format-standard","hentry","category-4925"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206023","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=206023"}],"version-history":[{"count":0,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/206023\/revisions"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=206023"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=206023"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=206023"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}