{"id":47514,"date":"2023-09-02T08:18:33","date_gmt":"2023-06-03T15:49:56","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e5%b0%86-go-%e4%b8%ad%e7%9a%84-rdb%ef%bc%88gorm%ef%bc%89%e5%92%8c-graphql-%e8%bf%9b%e8%a1%8c%e8%bf%9e%e6%8e%a5%e7%9a%84%e6%95%85%e4%ba%8b%e3%80%82\/"},"modified":"2024-04-30T21:12:59","modified_gmt":"2024-04-30T13:12:59","slug":"%e5%b0%9d%e8%af%95%e5%b0%86-go-%e4%b8%ad%e7%9a%84-rdb%ef%bc%88gorm%ef%bc%89%e5%92%8c-graphql-%e8%bf%9b%e8%a1%8c%e8%bf%9e%e6%8e%a5%e7%9a%84%e6%95%85%e4%ba%8b%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%b0%9d%e8%af%95%e5%b0%86-go-%e4%b8%ad%e7%9a%84-rdb%ef%bc%88gorm%ef%bc%89%e5%92%8c-graphql-%e8%bf%9b%e8%a1%8c%e8%bf%9e%e6%8e%a5%e7%9a%84%e6%95%85%e4%ba%8b%e3%80%82\/","title":{"rendered":"\u5c1d\u8bd5\u5c06 Go \u4e2d\u7684 RDB\uff08gorm\uff09\u548c GraphQL \u8fdb\u884c\u8fde\u63a5\u7684\u6545\u4e8b"},"content":{"rendered":"<h1>\u9996\u5148<\/h1>\n<p>\u6211\u4e4b\u524d\u60f3\u5728Node\u4e2d\u4f7f\u7528GraphQL\uff0c\u4f46\u540e\u6765\u6211\u51b3\u5b9a\u5728Go\u4e2d\u5c1d\u8bd5\u4e00\u4e0b\u3002<br \/>\n\u56e0\u4e3a\u6709\u4e00\u4e9b\u9ebb\u70e6\u4e8b\u60c5\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u5c06\u5176\u4fdd\u7559\u4e0b\u6765\u3002<\/p>\n<p>\u203b\u4ec5\u652f\u6301\u67e5\u8be2\u64cd\u4f5c\uff08\u5efa\u8bae\u4f7f\u7528\u5e38\u89c4ORM\u8fdb\u884c\u66f4\u65b0\u64cd\u4f5c\uff09\u3002<\/p>\n<h2>\u5f62\u6210<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">golang v1.11<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">gorm v1.9.2<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">graphql-go v0.7.7<\/ul>\n<h2>\u5bfc\u81f4\u611f\u5230\u9ebb\u70e6\u7684\u4e3b\u8981\u539f\u56e0\u662f\u4ec0\u4e48\uff1f<\/h2>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">\u72ec\u81ea\u578b\u3092\u7a81\u3063\u8fbc\u3093\u3060\u3002<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u3042\u3048\u3066\u5faa\u74b0\u3057\u305f\u30af\u30a8\u30ea\u306e\u7d50\u679c\u304c\u6b32\u3057\u304b\u3063\u305f\uff08\u6210\u679c\u7269\u306e\u753b\u50cf\u306e\u3088\u3046\u306a\uff09\u3002<\/ul>\n<h2>\u8fbe\u5230\u7684\u7ed3\u679c\/\u6210\u679c<\/h2>\n<div><img decoding=\"async\" class=\"post-images\" title=\"\" src=\"https:\/\/cdn.silicloud.com\/blog-img\/blog\/img\/657d7f55913a08637a6a62f4\/8-0.png\" alt=\"image.png\" \/><\/div>\n<h1>gorm dao \u662f\u4e00\u4e2a\u7528\u4e8e\u5b9a\u4e49\u548c\u8bbf\u95ee\u6570\u636e\u5e93\u7684\u6846\u67b6\u3002<\/h1>\n<p>\u6211\u4eec\u9996\u5148\u5b9a\u4e49\u5728gorm\u4e2d\u5904\u7406\u7684DAO\u3002<\/p>\n<p>\u25cf\u7528\u6237\u6709\u4e00\u4e2a\u540d\u4e3a\u201c\u90ae\u4ef6\u201d\u7684\u5b50\u9879\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">dao<\/span>\r\n\r\n<span class=\"c\">\/\/ DAO\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">User<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>     <span class=\"kt\">int64<\/span> <span class=\"s\">`gorm:\"PRIMARY_KEY\"`<\/span>\r\n    <span class=\"n\">Name<\/span>   <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">EMails<\/span> <span class=\"p\">[]<\/span><span class=\"n\">EMail<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u25cf\u90ae\u4ef6\u4ee5\u201c\u7528\u6237\u201d\u4e3a\u7236\u5bf9\u8c61\u5b58\u5728\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">dao<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"s\">\"github.com\/lightstaff\/go-graphql-gorm-example\/dao\/types\"<\/span>\r\n\r\n<span class=\"c\">\/\/ DAO\u4e0a\u306e\u30e1\u30fc\u30eb<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">EMail<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">ID<\/span>      <span class=\"kt\">int64<\/span> <span class=\"s\">`gorm:\"PRIMARY_KEY\"`<\/span>\r\n    <span class=\"n\">Address<\/span> <span class=\"kt\">string<\/span>\r\n    <span class=\"n\">Remarks<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NullString<\/span>\r\n    <span class=\"n\">UserID<\/span>  <span class=\"kt\">int64<\/span>\r\n    <span class=\"n\">User<\/span>    <span class=\"o\">*<\/span><span class=\"n\">User<\/span> <span class=\"c\">\/\/ \u5faa\u74b0\u53c2\u7167\u3067\u304d\u308b\u3088\u3046\u306b\u30dd\u30a4\u30f3\u30bf\u3067\u5b9a\u7fa9<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u203btypes.NullString\u662f\u5bf9sql.NullString\u8fdb\u884c\u4e86JSON\u63a5\u53e3\u7684\u6269\u5c55\u800c\u5df2\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">types<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"database\/sql\"<\/span>\r\n    <span class=\"s\">\"encoding\/json\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"c\">\/\/ sql.NullString\u306e\u30e9\u30c3\u30d1\u30fc<\/span>\r\n<span class=\"k\">type<\/span> <span class=\"n\">NullString<\/span> <span class=\"k\">struct<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">sql<\/span><span class=\"o\">.<\/span><span class=\"n\">NullString<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ MarshalJSON<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">s<\/span> <span class=\"n\">NullString<\/span><span class=\"p\">)<\/span> <span class=\"n\">MarshalJSON<\/span><span class=\"p\">()<\/span> <span class=\"p\">([]<\/span><span class=\"kt\">byte<\/span><span class=\"p\">,<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"n\">Valid<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">json<\/span><span class=\"o\">.<\/span><span class=\"n\">Marshal<\/span><span class=\"p\">(<\/span><span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"k\">return<\/span> <span class=\"n\">json<\/span><span class=\"o\">.<\/span><span class=\"n\">Marshal<\/span><span class=\"p\">(<\/span><span class=\"no\">nil<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ UnmarshalJSON<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"p\">(<\/span><span class=\"n\">s<\/span> <span class=\"o\">*<\/span><span class=\"n\">NullString<\/span><span class=\"p\">)<\/span> <span class=\"n\">UnmarshalJSON<\/span><span class=\"p\">(<\/span><span class=\"n\">data<\/span> <span class=\"p\">[]<\/span><span class=\"kt\">byte<\/span><span class=\"p\">)<\/span> <span class=\"kt\">error<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">var<\/span> <span class=\"n\">str<\/span> <span class=\"kt\">string<\/span>\r\n\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">json<\/span><span class=\"o\">.<\/span><span class=\"n\">Unmarshal<\/span><span class=\"p\">(<\/span><span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">str<\/span><span class=\"p\">);<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">err<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span> <span class=\"o\">=<\/span> <span class=\"n\">str<\/span>\r\n    <span class=\"n\">s<\/span><span class=\"o\">.<\/span><span class=\"n\">Valid<\/span> <span class=\"o\">=<\/span> <span class=\"n\">str<\/span> <span class=\"o\">!=<\/span> <span class=\"s\">\"\"<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span>\r\n<span class=\"p\">}<\/span>\r\n\r\n<span class=\"c\">\/\/ \u65b0\u898f\u4f5c\u6210<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">NewNullString<\/span><span class=\"p\">(<\/span><span class=\"n\">value<\/span> <span class=\"kt\">string<\/span><span class=\"p\">)<\/span> <span class=\"n\">NullString<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">NullString<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">NullString<\/span><span class=\"o\">:<\/span> <span class=\"n\">sql<\/span><span class=\"o\">.<\/span><span class=\"n\">NullString<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">String<\/span><span class=\"o\">:<\/span> <span class=\"n\">value<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Valid<\/span><span class=\"o\">:<\/span>  <span class=\"n\">value<\/span> <span class=\"o\">!=<\/span> <span class=\"s\">\"\"<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"p\">},<\/span>\r\n    <span class=\"p\">}<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u662f\u4e00\u4e2a\u5e38\u89c1\u7684gorm\u5b9a\u4e49\u3002<\/p>\n<h1>GraphQL Scalar\u7684\u5b9a\u4e49<\/h1>\n<p>\u8fd9\u662f\u4e00\u4e2a\u7e41\u7410\u7684\u95ee\u9898\u3002\u56e0\u4e3aNullString\u4e0d\u7b26\u5408GraphQL\u7684\u6807\u51c6\u7c7b\u578b\uff0c\u6240\u4ee5\u9700\u8981\u5b9a\u4e49\u89e3\u51b3\u65b9\u6cd5\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"k\">package<\/span> <span class=\"n\">scalar<\/span>\r\n\r\n<span class=\"k\">import<\/span> <span class=\"p\">(<\/span>\r\n    <span class=\"s\">\"github.com\/graphql-go\/graphql\"<\/span>\r\n    <span class=\"s\">\"github.com\/graphql-go\/graphql\/language\/ast\"<\/span>\r\n\r\n    <span class=\"s\">\"github.com\/lightstaff\/go-graphql-gorm-example\/dao\/types\"<\/span>\r\n<span class=\"p\">)<\/span>\r\n\r\n<span class=\"c\">\/\/ NullString\u306e\u5909\u63db\u5b9a\u7fa9<\/span>\r\n<span class=\"k\">var<\/span> <span class=\"n\">NullStringScalar<\/span> <span class=\"o\">=<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewScalar<\/span><span class=\"p\">(<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ScalarConfig<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"n\">Name<\/span><span class=\"o\">:<\/span>        <span class=\"s\">\"NullString\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">Description<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"Support for null string\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">Serialize<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">value<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{})<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{}<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">switch<\/span> <span class=\"n\">value<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">value<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"k\">type<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NullString<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">value<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"o\">*<\/span><span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NullString<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">value<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span>\r\n        <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">},<\/span>\r\n    <span class=\"n\">ParseValue<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">value<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{})<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{}<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">switch<\/span> <span class=\"n\">value<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">value<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"k\">type<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"kt\">string<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NewNullString<\/span><span class=\"p\">(<\/span><span class=\"n\">value<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"o\">*<\/span><span class=\"kt\">string<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NewNullString<\/span><span class=\"p\">(<\/span><span class=\"o\">*<\/span><span class=\"n\">value<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">},<\/span>\r\n    <span class=\"n\">ParseLiteral<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">valueAST<\/span> <span class=\"n\">ast<\/span><span class=\"o\">.<\/span><span class=\"n\">Value<\/span><span class=\"p\">)<\/span> <span class=\"k\">interface<\/span><span class=\"p\">{}<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">switch<\/span> <span class=\"n\">valueAST<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">valueAST<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"k\">type<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"k\">case<\/span> <span class=\"o\">*<\/span><span class=\"n\">ast<\/span><span class=\"o\">.<\/span><span class=\"n\">StringValue<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">types<\/span><span class=\"o\">.<\/span><span class=\"n\">NewNullString<\/span><span class=\"p\">(<\/span><span class=\"n\">valueAST<\/span><span class=\"o\">.<\/span><span class=\"n\">Value<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">default<\/span><span class=\"o\">:<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span>\r\n        <span class=\"p\">}<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">})<\/span>\r\n<\/code><\/pre>\n<p>\u6839\u636e graphql.ScalarConfig \u7684\u8981\u6c42\uff0c\u6211\u4eec\u5b9a\u4e49\u4e86\u53ef\u4ee5\u76f8\u4e92\u8f6c\u6362\u7684 Serialize \u548c ParseValue \u65b9\u6cd5\u3002\u5173\u4e8e ParseLiteral \u7684\u7406\u89e3\u8fd8\u6709\u4e9b\u56f0\u60d1&#8230;&#8230;<\/p>\n<p>\u8fd9\u6b21\u53ea\u6709\u7a7a\u5b57\u7b26\u4e32\uff0c\u4f46\u662f\u5982\u679c\u72ec\u81ea\u7c7b\u578b\u589e\u52a0\u7684\u8bdd\u53ef\u80fd\u4f1a\u5f88\u9ebb\u70e6&#8230;<\/p>\n<h1>GraphQL Object\u5b9a\u4e49\u7684\u76ee\u7684\u662f\u63cf\u8ff0GraphQL\u7684\u6570\u636e\u6a21\u578b\uff0c\u5305\u62ec\u5b57\u6bb5\u548c\u7c7b\u578b\u3002\u5b83\u4f7f\u7528\u4e86\u4e00\u79cd\u7c7b\u4f3c\u4e8eJSON\u7684\u8bed\u6cd5\uff0c\u7528\u4e8e\u5b9a\u4e49\u5bf9\u8c61\u7684\u7ed3\u6784\u548c\u5b57\u6bb5\u7684\u7c7b\u578b\u3002GraphQL Object\u5b9a\u4e49\u4e5f\u53ef\u4ee5\u5305\u542b\u5d4c\u5957\u5bf9\u8c61\u548c\u81ea\u5b9a\u4e49\u7c7b\u578b\uff0c\u4ece\u800c\u6784\u5efa\u590d\u6742\u7684\u6570\u636e\u6a21\u578b\u3002<\/h1>\n<p>\u4ee5\u4e0b\u662f\u53e6\u4e00\u4e2a\u9ebb\u70e6\u7684\u70b9\u3002<br \/>\n\u5f53\u7136\uff0cgorm\u67e5\u8be2\u7684\u7ed3\u679c\u5e76\u4e0d\u4f1a\u81ea\u52a8\u8f6c\u6362\u6210GraphQL\u7684\u6a21\u5f0f\u3002\u60a8\u9700\u8981\u5b9a\u4e49graphql.Object\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ graphql.Object\u5b9a\u7fa9\u90e8\u5206\u306e\u307f\u629c\u7c8b<\/span>\r\n\r\n<span class=\"c\">\/\/ GraphQL\u4e0a\u306e\u30e6\u30fc\u30b6\u30fc\u5b9a\u7fa9<\/span>\r\n<span class=\"k\">var<\/span> <span class=\"n\">userType<\/span> <span class=\"o\">=<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewObject<\/span><span class=\"p\">(<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ObjectConfig<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"User\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">Fields<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Fields<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"s\">\"id\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Int<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"s\">\"name\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">Name<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<span class=\"c\">\/\/ GraphQL\u4e0a\u306e\u30e1\u30fc\u30eb\u5b9a\u7fa9<\/span>\r\n<span class=\"k\">var<\/span> <span class=\"n\">emailType<\/span> <span class=\"o\">=<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewObject<\/span><span class=\"p\">(<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ObjectConfig<\/span><span class=\"p\">{<\/span>\r\n    <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"EMail\"<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"n\">Fields<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Fields<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"s\">\"id\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Int<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">EMail<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">ID<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"s\">\"address\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">String<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">EMail<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">Address<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"s\">\"remarks\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">scalar<\/span><span class=\"o\">.<\/span><span class=\"n\">NullStringScalar<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">EMail<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">Remarks<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n        <span class=\"s\">\"userId\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n            <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Int<\/span><span class=\"p\">,<\/span>\r\n            <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">EMail<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">UserID<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">},<\/span>\r\n    <span class=\"p\">},<\/span>\r\n<span class=\"p\">})<\/span>\r\n\r\n<span class=\"c\">\/\/ GraphQL\u5faa\u74b0\u53c2\u7167\u30a8\u30e9\u30fc\u5bfe\u7b56<\/span>\r\n<span class=\"k\">func<\/span> <span class=\"n\">init<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">userType<\/span><span class=\"o\">.<\/span><span class=\"n\">AddFieldConfig<\/span><span class=\"p\">(<\/span><span class=\"s\">\"emails\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewList<\/span><span class=\"p\">(<\/span><span class=\"n\">emailType<\/span><span class=\"p\">),<\/span>\r\n        <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">return<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">EMails<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n        <span class=\"p\">},<\/span>\r\n    <span class=\"p\">})<\/span>\r\n\r\n    <span class=\"n\">emailType<\/span><span class=\"o\">.<\/span><span class=\"n\">AddFieldConfig<\/span><span class=\"p\">(<\/span><span class=\"s\">\"user\"<\/span><span class=\"p\">,<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">Type<\/span><span class=\"o\">:<\/span> <span class=\"n\">userType<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n            <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"p\">,<\/span> <span class=\"n\">ok<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">p<\/span><span class=\"o\">.<\/span><span class=\"n\">Source<\/span><span class=\"o\">.<\/span><span class=\"p\">(<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">EMail<\/span><span class=\"p\">);<\/span> <span class=\"n\">ok<\/span> <span class=\"p\">{<\/span>\r\n                <span class=\"k\">if<\/span> <span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n                    <span class=\"k\">return<\/span> <span class=\"o\">*<\/span><span class=\"n\">data<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                <span class=\"p\">}<\/span>\r\n\r\n                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n            <span class=\"p\">}<\/span>\r\n\r\n            <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n        <span class=\"p\">},<\/span>\r\n    <span class=\"p\">})<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5728init()\u51fd\u6570\u4e2d\u6b63\u5728\u8fdb\u884c\u4e00\u4e9b\u64cd\u4f5c\uff0c\u4f46\u662fGraphQL\u5e93\u63d0\u4f9b\u4e86\u4e00\u79cd\u53cb\u597d\u7684\u8bbe\u8ba1\u7b56\u7565\uff0c\u7528graphql.NewObject\u6765\u5b9a\u4e49\u7528\u6237\u7684\u90ae\u4ef6\u5c5e\u6027\u4e3a\u6570\u7ec4\uff0c\u5e76\u4e14\u7528\u90ae\u4ef6\u5c5e\u6027\u6765\u5b9a\u4e49\u7528\u6237\uff0c\u8fd9\u6837\u53ef\u4ee5\u907f\u514d\u5faa\u73af\u5f15\u7528\u5bfc\u81f4\u7684\u7f16\u8bd1\u9519\u8bef\u3002\u53ea\u9700\u6309\u7167\u8fd9\u79cd\u65b9\u5f0f\u8fdb\u884c\u540e\u671f\u6dfb\u52a0\u5373\u53ef\u901a\u8fc7\u7f16\u8bd1\u3002<\/p>\n<h1>\u7a0b\u5e8f\u5165\u53e3<\/h1>\n<p>\u53ea\u8981\u5230\u8fbe\u8fd9\u91cc\uff0c\u5269\u4e0b\u7684\u5c31\u662f\u5165\u53e3\u70b9\uff08func main()\uff09\u4e86\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"c\">\/\/ main\u306e\u307f\u629c\u7c8b<\/span>\r\n\r\n<span class=\"k\">func<\/span> <span class=\"n\">main<\/span><span class=\"p\">()<\/span> <span class=\"p\">{<\/span>\r\n    <span class=\"n\">db<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">gorm<\/span><span class=\"o\">.<\/span><span class=\"n\">Open<\/span><span class=\"p\">(<\/span><span class=\"s\">\"mysql\"<\/span><span class=\"p\">,<\/span> <span class=\"s\">\"root:1234@tcp(localhost:3306)\/test?charset=utf8&amp;parseTime=True&amp;loc=Local\"<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n    <span class=\"k\">defer<\/span> <span class=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">Close<\/span><span class=\"p\">()<\/span>\r\n\r\n    <span class=\"n\">schema<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewSchema<\/span><span class=\"p\">(<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">SchemaConfig<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">Query<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewObject<\/span><span class=\"p\">(<\/span>\r\n            <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ObjectConfig<\/span><span class=\"p\">{<\/span>\r\n                <span class=\"n\">Name<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"query\"<\/span><span class=\"p\">,<\/span>\r\n                <span class=\"n\">Fields<\/span><span class=\"o\">:<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Fields<\/span><span class=\"p\">{<\/span>\r\n                    <span class=\"s\">\"users\"<\/span><span class=\"o\">:<\/span> <span class=\"o\">&amp;<\/span><span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">Field<\/span><span class=\"p\">{<\/span>\r\n                        <span class=\"n\">Type<\/span><span class=\"o\">:<\/span>        <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">NewList<\/span><span class=\"p\">(<\/span><span class=\"n\">userType<\/span><span class=\"p\">),<\/span>\r\n                        <span class=\"n\">Description<\/span><span class=\"o\">:<\/span> <span class=\"s\">\"Users\"<\/span><span class=\"p\">,<\/span>\r\n                        <span class=\"n\">Resolve<\/span><span class=\"o\">:<\/span> <span class=\"k\">func<\/span><span class=\"p\">(<\/span><span class=\"n\">p<\/span> <span class=\"n\">graphql<\/span><span class=\"o\">.<\/span><span class=\"n\">ResolveParams<\/span><span class=\"p\">)<\/span> <span class=\"p\">(<\/span><span class=\"k\">interface<\/span><span class=\"p\">{},<\/span> <span class=\"kt\">error<\/span><span class=\"p\">)<\/span> <span class=\"p\">{<\/span>\r\n                            <span class=\"n\">users<\/span> <span class=\"o\">:=<\/span> <span class=\"nb\">make<\/span><span class=\"p\">([]<\/span><span class=\"n\">dao<\/span><span class=\"o\">.<\/span><span class=\"n\">User<\/span><span class=\"p\">,<\/span> <span class=\"m\">0<\/span><span class=\"p\">)<\/span>\r\n                            <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">db<\/span><span class=\"o\">.<\/span><span class=\"n\">Preload<\/span><span class=\"p\">(<\/span><span class=\"s\">\"EMails\"<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">Preload<\/span><span class=\"p\">(<\/span><span class=\"s\">\"EMails.User\"<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">Find<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">users<\/span><span class=\"p\">)<\/span><span class=\"o\">.<\/span><span class=\"n\">Error<\/span><span class=\"p\">;<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n                                <span class=\"k\">return<\/span> <span class=\"no\">nil<\/span><span class=\"p\">,<\/span> <span class=\"n\">err<\/span>\r\n                            <span class=\"p\">}<\/span>\r\n\r\n                            <span class=\"k\">return<\/span> <span class=\"n\">users<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span>\r\n                        <span class=\"p\">},<\/span>\r\n                    <span class=\"p\">},<\/span>\r\n                <span class=\"p\">},<\/span>\r\n            <span class=\"p\">},<\/span>\r\n        <span class=\"p\">),<\/span>\r\n    <span class=\"p\">})<\/span>\r\n    <span class=\"k\">if<\/span> <span class=\"n\">err<\/span> <span class=\"o\">!=<\/span> <span class=\"no\">nil<\/span> <span class=\"p\">{<\/span>\r\n        <span class=\"nb\">panic<\/span><span class=\"p\">(<\/span><span class=\"n\">err<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"p\">}<\/span>\r\n\r\n    <span class=\"n\">h<\/span> <span class=\"o\">:=<\/span> <span class=\"n\">handler<\/span><span class=\"o\">.<\/span><span class=\"n\">New<\/span><span class=\"p\">(<\/span><span class=\"o\">&amp;<\/span><span class=\"n\">handler<\/span><span class=\"o\">.<\/span><span class=\"n\">Config<\/span><span class=\"p\">{<\/span>\r\n        <span class=\"n\">Schema<\/span><span class=\"o\">:<\/span>   <span class=\"o\">&amp;<\/span><span class=\"n\">schema<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">Pretty<\/span><span class=\"o\">:<\/span>   <span class=\"no\">true<\/span><span class=\"p\">,<\/span>\r\n        <span class=\"n\">GraphiQL<\/span><span class=\"o\">:<\/span> <span class=\"no\">true<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"p\">})<\/span>\r\n\r\n    <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">Handle<\/span><span class=\"p\">(<\/span><span class=\"s\">\"\/graphql\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">h<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">http<\/span><span class=\"o\">.<\/span><span class=\"n\">ListenAndServe<\/span><span class=\"p\">(<\/span><span class=\"s\">\":8080\"<\/span><span class=\"p\">,<\/span> <span class=\"no\">nil<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">}<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u4f60\u8fd0\u884c `go run main.go` \u5e76\u8bbf\u95ee `localhost:8080\/graphql` \u65f6\uff0cGraphiQL\u5c06\u6253\u5f00\u3002\u4f60\u53ef\u4ee5\u6267\u884c\u50cf#\u5f00\u59cb\u7684##\u6210\u679c\u7269\u4e2d\u8d34\u7684\u56fe\u7247\u4e00\u6837\u7684\u67e5\u8be2\u3002<\/p>\n<h1>\u603b\u4e4b<\/h1>\n<p>\u53ef\u4ee5\u8bf4\uff0c\u5404\u79cd\u7b80\u5355\u7684\u8f6c\u6362\u90fd\u662fGo\u98ce\u683c\u6240\u9700\u8981\u7684\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u9996\u5148 \u6211\u4e4b\u524d\u60f3\u5728Node\u4e2d\u4f7f\u7528GraphQL\uff0c\u4f46\u540e\u6765\u6211\u51b3\u5b9a\u5728Go\u4e2d\u5c1d\u8bd5\u4e00\u4e0b\u3002 \u56e0\u4e3a\u6709\u4e00\u4e9b\u9ebb\u70e6\u4e8b\u60c5\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u5c06 [&hellip;]<\/p>\n","protected":false},"author":11,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-47514","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v21.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u5c1d\u8bd5\u5c06 Go \u4e2d\u7684 RDB\uff08gorm\uff09\u548c GraphQL \u8fdb\u884c\u8fde\u63a5\u7684\u6545\u4e8b - Blog - Silicon Cloud<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5c1d\u8bd5\u5c06-go-\u4e2d\u7684-rdb\uff08gorm\uff09\u548c-graphql-\u8fdb\u884c\u8fde\u63a5\u7684\u6545\u4e8b\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5c1d\u8bd5\u5c06 Go \u4e2d\u7684 RDB\uff08gorm\uff09\u548c GraphQL \u8fdb\u884c\u8fde\u63a5\u7684\u6545\u4e8b\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u6211\u4e4b\u524d\u60f3\u5728Node\u4e2d\u4f7f\u7528GraphQL\uff0c\u4f46\u540e\u6765\u6211\u51b3\u5b9a\u5728Go\u4e2d\u5c1d\u8bd5\u4e00\u4e0b\u3002 \u56e0\u4e3a\u6709\u4e00\u4e9b\u9ebb\u70e6\u4e8b\u60c5\uff0c\u6240\u4ee5\u6211\u51b3\u5b9a\u5c06 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5c1d\u8bd5\u5c06-go-\u4e2d\u7684-rdb\uff08gorm\uff09\u548c-graphql-\u8fdb\u884c\u8fde\u63a5\u7684\u6545\u4e8b\u3002\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - Silicon Cloud\" \/>\n<meta property=\"article:published_time\" content=\"2023-06-03T15:49:56+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-04-30T13:12:59+00:00\" \/>\n<meta property=\"og:image\" 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