{"id":50072,"date":"2023-06-22T13:20:43","date_gmt":"2023-02-07T01:41:02","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f\/"},"modified":"2024-04-30T10:09:42","modified_gmt":"2024-04-30T02:09:42","slug":"%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f\/","title":{"rendered":"\u5728\u5c06[Django]\u6a21\u578b\u8f6c\u4e3aJsonEncode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\u8bbe\u7f6e"},"content":{"rendered":"<h1>\u6211\u60f3\u505a\u7684\u4e8b\u60c5<\/h1>\n<ul class=\"post-ul\">\n<li style=\"list-style-type: none;\">\n<ul class=\"post-ul\">Django\u306e\u30e2\u30c7\u30eb\u3092\u30b7\u30ea\u30a2\u30eb\u5316\uff08JSON)\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3057\u305f\u3044<\/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\">\u3053\u306e\u6642\u306b\u65e5\u4ed8\u3092\u4efb\u610f\u306e\u66f8\u5f0f\u306b\u6574\u5f62\u3057\u305f\u3044\uff08\u4f8b\u3048\u3070 &#8220;19\/03\/01 13:00&#8221;)<\/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\">\u6570\u5024\u3092\u66f8\u5f0f\u8a2d\u5b9a\u304a\u3088\u3073\u5358\u4f4d\u3092\u4ed8\u4e0e\u3057\u305f\u3044(\u4f8b\u3048\u3070 10000 \u3092 &#8220;10,000\u5186&#8221;\u3068\u304b&#8221;10,000\u90e8&#8221;\u3068\u304b\uff09<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<ul class=\"post-ul\">\u6574\u5f62\u306f\u30b5\u30fc\u30d0\u30b5\u30a4\u30c9\u3067\u5b9f\u884c\u3057\u305f\u3044<\/ul>\n<h1>\u5b66\u79d1\u7684\u95ee\u9898<\/h1>\n<p>\u4f7f\u7528Django\u63d0\u4f9b\u7684\u5e8f\u5217\u5316\u5668\uff08django.core.serializers.serialize \/ DjangoJSONEncoder\uff09\u80fd\u591f\u8f7b\u677e\u5730\u5bf9Django\u6a21\u578b\u8fdb\u884c\u5e8f\u5217\u5316\uff0c\u4f46\u5b58\u5728\u4ee5\u4e0b\u95ee\u9898\u3002<\/p>\n<h2>\u65e5\u671f\u65f6\u95f4\u7c7b\u578b\u7684\u663e\u793a\u5197\u957f\u4e0d\u7b80\u6d01\u3002<\/h2>\n<pre class=\"post-pre\"><code><span class=\"mi\">2019<\/span><span class=\"o\">-<\/span><span class=\"mi\">03<\/span><span class=\"o\">-<\/span><span class=\"mi\">06<\/span><span class=\"n\">T17<\/span><span class=\"p\">:<\/span><span class=\"mi\">46<\/span><span class=\"p\">:<\/span><span class=\"mf\">04.013<\/span><span class=\"n\">Z<\/span>\r\n<\/code><\/pre>\n<h2>\u53ea\u6709\u6a21\u578b\u5b57\u6bb5\u9700\u8981\u8fdb\u884c\u5e8f\u5217\u5316\u3002<\/h2>\n<p>\u540c\u6837\uff0c\u5b83\u53ea\u9002\u7528\u4e8e\u6a21\u578b\u5b57\u6bb5\u3002\u5373\u4f7f\u51c6\u5907\u4e86\u683c\u5f0f\u8bbe\u7f6e\u7684\u65b9\u6cd5\u6216\u5c5e\u6027\uff0c\u4e5f\u4e0d\u80fd\u5305\u62ec\u5728\u5185\u3002\uff08\u7531\u4e8e\u5728\u5f97\u51fa\u8fd9\u4e2a\u65e0\u6cd5\u8fdb\u884c\u7684\u7ed3\u8bba\u4e4b\u524d\u8fdb\u884c\u4e86\u4e00\u4e9b\u8c03\u67e5\uff0c\u6240\u4ee5\u6211\u5199\u4e86\u8fd9\u7bc7\u6587\u7ae0\u3002\u5e0c\u671b\u80fd\u5bf9\u4f60\u6709\u6240\u5e2e\u52a9\u3002\uff09<\/p>\n<h2>\u4f1a\u5305\u542b\u4e0d\u5fc5\u8981\u7684\u4fe1\u606f\u3002<\/h2>\n<p>\u7531\u4e8e\u5305\u542b\u4e86\u6a21\u578b\u7684\u5b57\u6bb5\u3001\u540d\u79f0\u548c\u4e3b\u952e\u503c\uff0c\u8fd9\u53d8\u5f97\u5197\u4f59\u4e86\uff08\u8fd9\u610f\u5473\u7740\u6211\u4eec\u9700\u8981\u8fdb\u884cDjango\u4f9d\u8d56\u7684\u5904\u7406\u6765\u63d0\u53d6\u5ba2\u6237\u673a\u9700\u8981\u7684\u6570\u636e\uff09\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"n\">In<\/span> <span class=\"p\">[<\/span><span class=\"mi\">11<\/span><span class=\"p\">]:<\/span> <span class=\"n\">serializers<\/span><span class=\"p\">.<\/span><span class=\"n\">serialize<\/span><span class=\"p\">(<\/span><span class=\"s\">'json'<\/span><span class=\"p\">,[<\/span><span class=\"n\">os<\/span><span class=\"p\">],<\/span> <span class=\"n\">stream<\/span><span class=\"o\">=<\/span><span class=\"n\">sys<\/span><span class=\"p\">.<\/span><span class=\"n\">stdout<\/span><span class=\"p\">,<\/span> <span class=\"n\">indent<\/span><span class=\"o\">=<\/span><span class=\"mi\">2<\/span><span class=\"p\">)<\/span>\r\n<span class=\"p\">[{<\/span>\r\n  <span class=\"s\">\"model\"<\/span><span class=\"p\">:<\/span> <span class=\"s\">\"order.ordersummary\"<\/span><span class=\"p\">,<\/span>  <span class=\"err\">\u2605<\/span><span class=\"n\">\u3053\u3053<\/span><span class=\"err\">\u2605<\/span>\r\n  <span class=\"s\">\"pk\"<\/span><span class=\"p\">:<\/span> <span class=\"mi\">1<\/span><span class=\"p\">,<\/span> <span class=\"err\">\u2605<\/span><span class=\"n\">\u3053\u3053<\/span><span class=\"err\">\u2605<\/span>\r\n  <span class=\"s\">\"fields\"<\/span><span class=\"p\">:<\/span> <span class=\"p\">{<\/span>\r\n     <span class=\"err\">\u30fb\u30fb\u30fb<\/span>\r\n  <span class=\"p\">}<\/span>\r\n<span class=\"p\">}]<\/span>\r\n<\/code><\/pre>\n<h1>\u5e94\u5bf9\u65b9\u6cd5<\/h1>\n<h2>\u4ee5\u4e0b\u662f\u539f\u6587\u7684\u4e2d\u6587\u91ca\u4e49\uff1a<\/h2>\n<p>\u68481\uff1a\u8bf7\u7528\u4e2d\u6587\u91cd\u65b0\u8868\u8fbe\u4ee5\u4e0b\u53e5\u5b50\uff0c\u53ea\u9700\u8981\u63d0\u4f9b\u4e00\u4e2a\u9009\u9879\uff1a<\/p>\n<p>\u8bf7\u63d0\u4f9b\u4e00\u79cd\u9009\u62e9\u3002<\/p>\n<p>\u5c06\u516c\u5f0f\u6587\u4ef6\u4e2d\u6240\u8ff0\u7684\u65b9\u6cd5\u7528\u4e8e\u4ee5\u4e0b\u6b65\u9aa4\uff1a<br \/>\n\u81ea\u5b9a\u4e49JSON\u5e8f\u5217\u5316\u7f16\u7801\u5668\uff0c\u5c06\u5176\u4f20\u9012\u7ed9\u5e8f\u5217\u5316\u5668\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.core.serializers.json<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">DjangoJSONEncoder<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">CustomJSONEncoder<\/span><span class=\"p\">(<\/span><span class=\"n\">DjangoJSONEncoder<\/span><span class=\"p\">):<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">default<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"nb\">isinstance<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"n\">datetime<\/span><span class=\"p\">):<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">obj<\/span><span class=\"p\">.<\/span><span class=\"n\">strftime<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%y\/%m\/%d %H:%M\"<\/span><span class=\"p\">)<\/span>  <span class=\"err\">\u2605<\/span><span class=\"n\">\u3053\u3053<\/span><span class=\"err\">\u2605<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"nb\">super<\/span><span class=\"p\">().<\/span><span class=\"n\">default<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.core<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">serializers<\/span>\r\n\r\n<span class=\"n\">serializers<\/span><span class=\"p\">.<\/span><span class=\"n\">serialize<\/span><span class=\"p\">(<\/span><span class=\"s\">'json'<\/span><span class=\"p\">,<\/span> <span class=\"n\">cls<\/span><span class=\"o\">=<\/span><span class=\"n\">CustomJSONEncoder<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u7528\u4e0b\u9762\u7684\u4ee3\u7801\u53ef\u4ee5\u66f4\u6539\u65e5\u671f\u65f6\u95f4\u683c\u5f0f\uff0c\u4f46\u662f\u6570\u503c\u7c7b\u578b\uff08\u5982int\uff09\u4e0d\u80fd\u901a\u8fc7\u76f8\u540c\u7684\u65b9\u5f0f\u8fdb\u884c\u66f4\u6539\uff0c\u800c\u4e14\u7531\u4e8e\u65e0\u6cd5\u63a7\u5236\u6570\u636e\u7684\u5c5e\u6027\u540d\uff0c\u56e0\u6b64\u65e0\u6cd5\u9644\u52a0&#8221;\u5186&#8221;\u6216&#8221;\u90e8&#8221;\u5c5e\u6027\u3002<\/p>\n<pre class=\"post-pre\"><code>        <span class=\"k\">if<\/span> <span class=\"nb\">isinstance<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"nb\">int<\/span><span class=\"p\">):<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"s\">\"{:,}\"<\/span><span class=\"p\">.<\/span><span class=\"nb\">format<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<h2>\u4ee5\u4e0b\u662f\u68482\uff08\u6700\u7ec8\u7248\u672c\uff09<\/h2>\n<p>\u5728\u4f7f\u7528Django\u7684\u5e8f\u5217\u5316\u5668\u4e4b\u524d\uff0c\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528Python\u7684Json\u5e8f\u5217\u5316\u5668\uff08json.dumps(obj)\uff09\u3002<br \/>\n\u7136\u800c\uff0c\u8bf7\u6ce8\u610fDjango\u6a21\u578b\u4e0d\u80fd\u76f4\u63a5\u8fdb\u884c\u8f6c\u6362\uff0c\u5426\u5219\u5c06\u4f1a\u5bfc\u81f4\u6267\u884c\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">json<\/span>\r\n<span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">dumps<\/span><span class=\"p\">(<\/span><span class=\"n\">fooModel<\/span><span class=\"p\">)<\/span>  \r\n<span class=\"o\">&gt;&gt;<\/span> <span class=\"nb\">TypeError<\/span><span class=\"p\">:<\/span> <span class=\"n\">Object<\/span> <span class=\"n\">of<\/span> <span class=\"nb\">type<\/span> <span class=\"s\">'FooModel'<\/span> <span class=\"ow\">is<\/span> <span class=\"ow\">not<\/span> <span class=\"n\">JSON<\/span> <span class=\"n\">serializable<\/span>\r\n<\/code><\/pre>\n<p>\u56e0\u6b64\uff0c\u4f7f\u7528model_to_dict\u51fd\u6570\u5c06\u6a21\u578b\u8f6c\u5316\u4e3a\u5b57\u5178\uff0c\u5e76\u5c06\u5176\u5e8f\u5217\u5316\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">json<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.forms.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">model_to_dict<\/span>\r\n<span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">dumps<\/span><span class=\"p\">(<\/span><span class=\"n\">model_to_dict<\/span><span class=\"p\">(<\/span><span class=\"n\">FooModel<\/span><span class=\"p\">))<\/span>\r\n<\/code><\/pre>\n<p>\u7136\u800c\uff0c\u5f53\u6a21\u578b\u5305\u542bdatetime\u7c7b\u578b\u65f6\u4f1a\u5bfc\u81f4\u9519\u8bef\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"nb\">TypeError<\/span><span class=\"p\">:<\/span> <span class=\"n\">Object<\/span> <span class=\"n\">of<\/span> <span class=\"nb\">type<\/span> <span class=\"s\">'datetime'<\/span> <span class=\"ow\">is<\/span> <span class=\"ow\">not<\/span> <span class=\"n\">JSON<\/span> <span class=\"n\">serializable<\/span>\r\n<\/code><\/pre>\n<p>\u4e3a\u4e86\u907f\u514d\u8fd9\u4e2a\u95ee\u9898\uff0c\u5c06\u683c\u5f0f\u8f6c\u6362\u540e\u7684\u5b57\u7b26\u4e32\u8bbe\u7f6e\u7ed9\u5df2\u8bbe\u5b9a\u4e3adatetime\u7c7b\u578b\u7684\u5143\u7d20\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.forms.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">model_to_dict<\/span>\r\n<span class=\"k\">class<\/span> <span class=\"nc\">FooModel<\/span><span class=\"p\">(<\/span><span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">Model<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">updated_at<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">DateTimeField<\/span><span class=\"p\">(<\/span><span class=\"s\">'\u66f4\u65b0\u65e5\u6642'<\/span><span class=\"p\">,<\/span> <span class=\"n\">auto_now<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">,<\/span> <span class=\"n\">null<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">to_dict<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">ret<\/span> <span class=\"o\">=<\/span> <span class=\"n\">model_to_dict<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">)<\/span> <span class=\"err\">\u2605<\/span><span class=\"n\">\u3053\u306e\u6642\u70b9\u3067\u306f<\/span> <span class=\"n\">ret<\/span><span class=\"p\">[<\/span><span class=\"s\">'update_at'<\/span><span class=\"p\">]<\/span><span class=\"n\">\u306fdatetime\u578b<\/span><span class=\"err\">\u2605<\/span>\r\n        <span class=\"n\">ret<\/span><span class=\"p\">[<\/span><span class=\"s\">'updated_at'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"bp\">self<\/span><span class=\"p\">.<\/span><span class=\"n\">updated_at<\/span><span class=\"p\">.<\/span><span class=\"n\">strftime<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%y\/%m\/%d %H:%M\"<\/span><span class=\"p\">)<\/span> <span class=\"err\">\u2605<\/span><span class=\"n\">\u6587\u5b57\u5217\u306b\u3057\u3066\u3057\u307e\u3046<\/span><span class=\"err\">\u2605<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">ret<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">json<\/span>\r\n<span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">dumps<\/span><span class=\"p\">(<\/span><span class=\"n\">fooModel<\/span><span class=\"p\">.<\/span><span class=\"n\">to_dict<\/span><span class=\"p\">())<\/span>\r\n<\/code><\/pre>\n<p>\u60a8\u53ef\u4ee5\u4f7f\u7528\u76f8\u540c\u7684\u65b9\u6cd5\u5c06\u6570\u5b57\u7c7b\u578b\u5b57\u6bb5\u8f6c\u6362\u4e3a\u4efb\u610f\u5b57\u7b26\u4e32\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.forms.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">model_to_dict<\/span>\r\n<span class=\"k\">class<\/span> <span class=\"nc\">FooModel<\/span><span class=\"p\">(<\/span><span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">Model<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"n\">total_charge<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">PositiveIntegerField<\/span><span class=\"p\">(<\/span><span class=\"s\">'\u5408\u8a08\u91d1\u984d'<\/span><span class=\"p\">,<\/span> <span class=\"n\">default<\/span><span class=\"o\">=<\/span><span class=\"mi\">0<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">updated_at<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">DateTimeField<\/span><span class=\"p\">(<\/span><span class=\"s\">'\u66f4\u65b0\u65e5\u6642'<\/span><span class=\"p\">,<\/span> <span class=\"n\">auto_now<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">,<\/span> <span class=\"n\">null<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">)<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">to_dict<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"n\">ret<\/span> <span class=\"o\">=<\/span> <span class=\"n\">model_to_dict<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">ret<\/span><span class=\"p\">[<\/span><span class=\"s\">'total_charge'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"s\">\"{:,}\u5186\"<\/span><span class=\"p\">.<\/span><span class=\"nb\">format<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">.<\/span><span class=\"n\">total_charge<\/span><span class=\"p\">)<\/span>  <span class=\"err\">\u2605<\/span><span class=\"n\">\u3053\u3053<\/span><span class=\"err\">\u2605<\/span>\r\n        <span class=\"n\">ret<\/span><span class=\"p\">[<\/span><span class=\"s\">'updated_at'<\/span><span class=\"p\">]<\/span> <span class=\"o\">=<\/span> <span class=\"bp\">self<\/span><span class=\"p\">.<\/span><span class=\"n\">updated_at<\/span><span class=\"p\">.<\/span><span class=\"n\">strftime<\/span><span class=\"p\">(<\/span><span class=\"s\">\"%y\/%m\/%d %H:%M\"<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"k\">return<\/span> <span class=\"n\">ret<\/span>\r\n<\/code><\/pre>\n<p>\u4f5c\u4e3a\u8fd9\u79cd\u65b9\u6cd5\u7684\u597d\u5904\uff0c\u53ef\u4ee5\u63d0\u5230\u7684\u662f\uff0c\u54cd\u5e94\u4e2d\u4e0d\u518d\u5305\u542b\u4e0d\u5fc5\u8981\u7684\u5b57\u6bb5\uff08\u6a21\u578b\u540d\u79f0\uff0c\u4e3b\u952e\u503c\uff09\u3002<\/p>\n<h1>\u989d\u5916\u7684\u4e1c\u897f<\/h1>\n<p>\u53e6\u5916\uff0c\u5982\u679c\u6709\u591a\u4e2a\u6a21\u578b\u5b9e\u4f8b\uff0c\u7f16\u5199\u91cd\u590d\u6267\u884cto_dict()\u7684\u4ee3\u7801\u4f1a\u53d8\u5f97\u5197\u957f\u3002<br \/>\n\u901a\u8fc7\u5c06\u81ea\u5b9a\u4e49\u7684Json\u5e8f\u5217\u5316\u5668\u4f20\u9012\u7ed9json.dumps\uff0c\u53ef\u4ee5\u50cf\u4e0b\u9762\u7684\u6587\u7ae0\u4e2d\u6240\u8ff0\u4e00\u6837\u5b9e\u73b0\u65e0\u5197\u957f\u63cf\u8ff0\u3002<\/p>\n<p>\u5bf9\u4e8e\u5728Django\u4e2d\u4f7f\u7528JSON\u7684\u601d\u8003\u4ee5\u53caSQL\u4f18\u5316\u7b49\u7684\u4e00\u9879\u7814\u7a76 &#8211; \u5168\u7403<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.db<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">models<\/span> <span class=\"k\">as<\/span> <span class=\"n\">django_models<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.db.models.query<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">QuerySet<\/span>\r\n<span class=\"k\">class<\/span> <span class=\"nc\">CustomJSONEncoder<\/span><span class=\"p\">(<\/span><span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">JSONEncoder<\/span><span class=\"p\">):<\/span>\r\n\r\n    <span class=\"k\">def<\/span> <span class=\"nf\">default<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span><span class=\"p\">):<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"nb\">isinstance<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"n\">django_models<\/span><span class=\"p\">.<\/span><span class=\"n\">Model<\/span><span class=\"p\">)<\/span> <span class=\"ow\">and<\/span> <span class=\"nb\">hasattr<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"s\">'to_dict'<\/span><span class=\"p\">):<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"n\">obj<\/span><span class=\"p\">.<\/span><span class=\"n\">to_dict<\/span><span class=\"p\">()<\/span>\r\n        <span class=\"k\">if<\/span> <span class=\"nb\">isinstance<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">,<\/span> <span class=\"n\">QuerySet<\/span><span class=\"p\">):<\/span>\r\n            <span class=\"k\">return<\/span> <span class=\"nb\">list<\/span><span class=\"p\">(<\/span><span class=\"n\">obj<\/span><span class=\"p\">)<\/span>\r\n        <span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">JSONEncoder<\/span><span class=\"p\">.<\/span><span class=\"n\">default<\/span><span class=\"p\">(<\/span><span class=\"bp\">self<\/span><span class=\"p\">,<\/span> <span class=\"n\">obj<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<pre class=\"post-pre\"><code><span class=\"k\">from<\/span> <span class=\"o\">&lt;<\/span><span class=\"p\">...<\/span><span class=\"o\">&gt;<\/span> <span class=\"kn\">import<\/span> <span class=\"nn\">CustomJSONEncoder<\/span>\r\n<span class=\"n\">json<\/span><span class=\"p\">.<\/span><span class=\"n\">dumps<\/span><span class=\"p\">(<\/span><span class=\"n\">model_list<\/span><span class=\"p\">,<\/span> <span class=\"n\">cls<\/span><span class=\"o\">=<\/span><span class=\"n\">CustomJSONEncoder<\/span><span class=\"p\">)<\/span>\r\n<\/code><\/pre>\n<p>\u8fd9\u5c31\u662f\u4ee5\u4e0a\u5185\u5bb9\u3002<\/p>\n<p>\u5982\u679c\u5b9e\u73b0\u7684\u592a\u8fc7\u5197\u957f\uff0c\u4f1a\u6709\u4e00\u70b9\u591a\u4f59\u7684\u611f\u89c9\u3002<\/p>\n<p>\u5e0c\u671b\u5728Django\u7684\u5e8f\u5217\u5316\u5668\u9009\u9879\u4e2d\u80fd\u591f\u6dfb\u52a0\u6a21\u578b\u7684\u65b9\u6cd5\u548c\u5c5e\u6027\u4f5c\u4e3a\u5e8f\u5217\u5316\u5bf9\u8c61\u3002\uff08\u542c\u8bf4Django Rest framework\u53ef\u4ee5\u5b9e\u73b0\u8fd9\u4e2a\u529f\u80fd\uff0c\u5982\u679c\u6709\u4f59\u529b\u7684\u8bdd\uff0c\u53ef\u4ee5\u53bb\u770b\u770b\u5b9e\u73b0\u65b9\u6cd5&#8230;\uff09<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u6211\u60f3\u505a\u7684\u4e8b\u60c5 Django\u306e\u30e2\u30c7\u30eb\u3092\u30b7\u30ea\u30a2\u30eb\u5316\uff08JSON)\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3057\u305f\u3044 &nbsp; \u3053 [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-50072","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>\u5728\u5c06[Django]\u6a21\u578b\u8f6c\u4e3aJsonEncode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\u8bbe\u7f6e - 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\/\u5728\u5c06django\u6a21\u578b\u8f6c\u4e3ajsonencode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u5728\u5c06[Django]\u6a21\u578b\u8f6c\u4e3aJsonEncode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\u8bbe\u7f6e\" \/>\n<meta property=\"og:description\" content=\"\u6211\u60f3\u505a\u7684\u4e8b\u60c5 Django\u306e\u30e2\u30c7\u30eb\u3092\u30b7\u30ea\u30a2\u30eb\u5316\uff08JSON)\u3057\u3066\u30af\u30e9\u30a4\u30a2\u30f3\u30c8\u306b\u30ec\u30b9\u30dd\u30f3\u30b9\u3057\u305f\u3044 &nbsp; \u3053 [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u5728\u5c06django\u6a21\u578b\u8f6c\u4e3ajsonencode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\/\" 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Cloud\",\"isPartOf\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\"},\"datePublished\":\"2023-02-07T01:41:02+00:00\",\"dateModified\":\"2024-04-30T02:09:42+00:00\",\"author\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#\/schema\/person\/41e222757cdd2a3365361328bd79970a\"},\"breadcrumb\":{\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f\/#breadcrumb\"},\"inLanguage\":\"zh-Hans\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8%e5%b0%86django%e6%a8%a1%e5%9e%8b%e8%bd%ac%e4%b8%bajsonencode%e6%97%b6%ef%bc%8c%e6%83%b3%e8%a6%81%e4%b8%ba%e6%97%a5%e6%9c%9f%e5%92%8c%e6%95%b0%e5%ad%97%e8%bf%9b%e8%a1%8c%e6%a0%bc%e5%bc%8f\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"\u9996\u9875\",\"item\":\"https:\/\/www.silicloud.com\/zh\/blog\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"\u5728\u5c06[Django]\u6a21\u578b\u8f6c\u4e3aJsonEncode\u65f6\uff0c\u60f3\u8981\u4e3a\u65e5\u671f\u548c\u6570\u5b57\u8fdb\u884c\u683c\u5f0f\u8bbe\u7f6e\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/www.silicloud.com\/zh\/blog\/#website\",\"url\":\"https:\/\/www.silicloud.com\/zh\/blog\/\",\"name\":\"Blog 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