{"id":49926,"date":"2023-03-06T09:37:13","date_gmt":"2023-12-23T05:19:04","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e4%bd%bf%e7%94%a8django%e5%a4%84%e7%90%86json%e7%9a%84restful-api%e3%80%82\/"},"modified":"2024-04-29T17:36:11","modified_gmt":"2024-04-29T09:36:11","slug":"%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e4%bd%bf%e7%94%a8django%e5%a4%84%e7%90%86json%e7%9a%84restful-api%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%88%9b%e5%bb%ba%e4%b8%80%e4%b8%aa%e4%bd%bf%e7%94%a8django%e5%a4%84%e7%90%86json%e7%9a%84restful-api%e3%80%82\/","title":{"rendered":"\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528Django\u5904\u7406json\u7684RESTful API"},"content":{"rendered":"<h2>\u5b89\u88c5Django<\/h2>\n<ul class=\"post-ul\">pip\u3092\u4f7f\u3046\u5834\u5408<\/ul>\n<pre class=\"post-pre\"><code>$ pip install django\r\n<\/code><\/pre>\n<ul class=\"post-ul\">Anaconda\u3092\u5c0e\u5165\u3057\u3066\u3044\u308b\u5834\u5408<\/ul>\n<pre class=\"post-pre\"><code>$ conda install django\r\n<\/code><\/pre>\n<p>\u6211\u4eec\u5e94\u8be5\u73b0\u5728\u53ef\u4ee5\u4f7f\u7528django-admin\u547d\u4ee4\u4e86\uff0c\u8bf7\u5c1d\u8bd5\u9a8c\u8bc1\u4e00\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>$ django-admin --version\r\n<\/code><\/pre>\n<p>\u7248\u672c\u56de\u6765\u4e86\u5c31\u6210\u529f\u4e86<\/p>\n<h2>\u521b\u5efa\u9879\u76ee<\/h2>\n<p>\u6211\u8981\u79fb\u52a8\u5230\u60f3\u8981\u521b\u5efa\u9879\u76ee\u7684\u76ee\u5f55\u3002<\/p>\n<pre class=\"post-pre\"><code>$ cd projectfolder\r\n<\/code><\/pre>\n<p>\u4f7f\u7528\u4e0b\u9762\u7684\u547d\u4ee4\u5c06\u751f\u6210\u9879\u76ee\u7684\u6a21\u677f\u3002<\/p>\n<pre class=\"post-pre\"><code>$ django-admin startproject myproject\r\n<\/code><\/pre>\n<p>\u6211\u5047\u8bbe\u60a8\u8981\u6c42\u5c06\u4ee5\u4e0b\u53e5\u5b50\u7684\u610f\u601d\u4ee5\u4e2d\u6587\u8fdb\u884c\u540c\u4e49\u6539\u8ff0\uff1a\u300c\u5047\u8bbe\u60a8\u4f7f\u7528\u4e86myproject\u4f5c\u4e3a\u9879\u76ee\u540d\u79f0\uff0c\u90a3\u4e48\u5e94\u8be5\u5df2\u7ecf\u521b\u5efa\u4e86\u540d\u4e3amyproject\u7684\u6587\u4ef6\u5939\u3002\u300d<\/p>\n<p>\u6587\u4ef6\u7684\u7ed3\u6784\u5982\u4e0b<\/p>\n<pre class=\"post-pre\"><code>myproject\r\n\u251c\u2500\u2500 manage.py\r\n\u2514\u2500\u2500 myproject\r\n    \u251c\u2500\u2500 __init__.py\r\n    \u251c\u2500\u2500 settings.py\r\n    \u251c\u2500\u2500 urls.py\r\n    \u2514\u2500\u2500 wsgi.py\r\n<\/code><\/pre>\n<h2>\u521b\u5efa\u5e94\u7528\u7a0b\u5e8f\u3002<\/h2>\n<p>\u6211\u5c06\u5728\u9879\u76ee\u4e2d\u521b\u5efa\u4e00\u4e2a\u5e94\u7528\u7a0b\u5e8f\u3002<\/p>\n<pre class=\"post-pre\"><code>$ cd myproject\r\n$ python manage.py startapp myapp\r\n<\/code><\/pre>\n<p>\u6211\u7684app\u662f\u4e00\u4e2a\u81ea\u5b9a\u4e49\u7684\u5e94\u7528\u540d\u79f0\u3002<\/p>\n<p>\u5728\u8fd9\u4e2a\u65f6\u95f4\u70b9\u4e0a\uff0c\u6587\u4ef6\u7684\u6784\u6210\u5e94\u8be5\u662f\u8fd9\u6837\u7684\u3002<\/p>\n<pre class=\"post-pre\"><code>myproject\r\n\u251c\u2500\u2500 manage.py\r\n\u251c\u2500\u2500 myapp\r\n\u2502   \u251c\u2500\u2500 __init__.py\r\n\u2502   \u251c\u2500\u2500 admin.py\r\n\u2502   \u251c\u2500\u2500 apps.py\r\n\u2502   \u251c\u2500\u2500 migrations\r\n\u2502   \u2502   \u2514\u2500\u2500 __init__.py\r\n\u2502   \u251c\u2500\u2500 models.py\r\n\u2502   \u251c\u2500\u2500 tests.py\r\n\u2502   \u2514\u2500\u2500 views.py\r\n\u2514\u2500\u2500 myproject\r\n    \u251c\u2500\u2500 __init__.py\r\n    \u251c\u2500\u2500 __pycache__\r\n    \u2502   \u251c\u2500\u2500 __init__.cpython-36.pyc\r\n    \u2502   \u2514\u2500\u2500 settings.cpython-36.pyc\r\n    \u251c\u2500\u2500 settings.py\r\n    \u251c\u2500\u2500 urls.py\r\n    \u2514\u2500\u2500 wsgi.py\r\n<\/code><\/pre>\n<p>\u5728 `settings.py` \u6587\u4ef6\u4e2d\u7684 `INSTALLED_APPS` \u9879\u4e2d\u6dfb\u52a0\u521a\u521b\u5efa\u7684\u5e94\u7528\u7a0b\u5e8f\u7684\u540d\u79f0\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"p\">.....<\/span>\r\n\r\n<span class=\"n\">INSTALLED_APPS<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"s\">'django.contrib.admin'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">'django.contrib.auth'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">'django.contrib.contenttypes'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">'django.contrib.sessions'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">'django.contrib.messages'<\/span><span class=\"p\">,<\/span>\r\n    <span class=\"s\">'django.contrib.staticfiles'<\/span><span class=\"p\">,<\/span>\r\n<span class=\"o\">+<\/span>   <span class=\"s\">'myapp'<\/span><span class=\"p\">,<\/span>  <span class=\"c1\">#\u8ffd\u52a0\u884c\r\n<\/span><span class=\"p\">]<\/span>\r\n\r\n<span class=\"p\">.....<\/span>\r\n<\/code><\/pre>\n<h2>\u521b\u5efa\u6570\u636e\u6a21\u578b<\/h2>\n<p>\u521b\u5efa\u6a21\u578b\u6587\u4ef6<\/p>\n<pre class=\"post-pre\"><code>$ touch myapp\/models.py\r\n<\/code><\/pre>\n<p>\u8fd9\u4e2a\u6587\u4ef6\u7528\u6765\u6307\u5b9a\u6570\u636e\u5728\u6570\u636e\u5e93\u4e2d\u7684\u5b58\u50a8\u7ed3\u6784\u548c\u7c7b\u578b\u3002<\/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>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Author<\/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    <span class=\"n\">name<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">CharField<\/span><span class=\"p\">(<\/span><span class=\"n\">max_length<\/span><span class=\"o\">=<\/span><span class=\"mi\">128<\/span><span class=\"p\">)<\/span>\r\n\r\n<span class=\"k\">class<\/span> <span class=\"nc\">Book<\/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    <span class=\"n\">author<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">ForeignKey<\/span><span class=\"p\">(<\/span><span class=\"n\">Writer<\/span><span class=\"p\">,<\/span> <span class=\"n\">related_name<\/span><span class=\"o\">=<\/span><span class=\"s\">'books'<\/span><span class=\"p\">,<\/span><span class=\"n\">on_delete<\/span><span class=\"o\">=<\/span><span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">CASCADE<\/span><span class=\"p\">,<\/span> <span class=\"n\">null<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">,<\/span> <span class=\"n\">blank<\/span><span class=\"o\">=<\/span><span class=\"bp\">True<\/span><span class=\"p\">,<\/span> <span class=\"n\">default<\/span><span class=\"o\">=<\/span><span class=\"bp\">None<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">title<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">CharField<\/span><span class=\"p\">(<\/span><span class=\"n\">max_length<\/span><span class=\"o\">=<\/span><span class=\"mi\">512<\/span><span class=\"p\">)<\/span>\r\n    <span class=\"n\">contents<\/span> <span class=\"o\">=<\/span> <span class=\"n\">models<\/span><span class=\"p\">.<\/span><span class=\"n\">TextField<\/span><span class=\"p\">()<\/span>\r\n<\/code><\/pre>\n<p>\u53e6\u5916\uff0c\u8fd8\u53ef\u4ee5\u770b\u5230\u4e00\u4e9b\u6ca1\u6709\u7f16\u5199on_delete\u7684\u6587\u7ae0\u3002<br \/>\n\u81eaDjango2.0\u4e4b\u540e\uff0c\u4f3c\u4e4emodels.ForeignKey()\u7684\u53c2\u6570\u5fc5\u987b\u5305\u542bon_delete\u5c5e\u6027\u3002<br \/>\n\u5982\u679c\u4e0d\u6307\u5b9aon_delete\uff0c\u521b\u5efa\u8fc1\u79fb\u6587\u4ef6\u65f6\u5c06\u4f1a\u51fa\u73b0\u4ee5\u4e0b\u9519\u8bef\u4fe1\u606f\uff1a<br \/>\nTypeError: __init__()\u7f3a\u5c11\u4e00\u4e2a\u5fc5\u9700\u7684\u4f4d\u7f6e\u53c2\u6570\uff1a&#8217;on_delete&#8217;<\/p>\n<h2>\u8fc1\u79fb<\/h2>\n<p>\u8fc1\u79fb\u662f\u6307\u63cf\u8ff0\u5c06\u6570\u636e\u6a21\u578b\u7684\u66f4\u6539\u5185\u5bb9\u53cd\u6620\u5230\u6570\u636e\u5e93\u4e2d\u7684\u547d\u4ee4\u3002<\/p>\n<p>\u521b\u5efa\u8fc1\u79fb\u6587\u4ef6<\/p>\n<pre class=\"post-pre\"><code>$ python manage.py makemigrations\r\n<\/code><\/pre>\n<p>\u5982\u679c\u4e0d\u80fd\u6b63\u5e38\u8fd0\u884c\uff0c\u9700\u8981\u6307\u5b9a\u5e94\u7528\u7a0b\u5e8f\u540d\u79f0\u3002<\/p>\n<blockquote><p>\u6211\u521b\u5efa\u4e86\u4e00\u4e2aDjango\u6a21\u578b\uff0c\u4f46\u662f\u5728\u8fd0\u884cmakemigrations\u547d\u4ee4\u65f6\uff0c\u663e\u793a&#8221;\u672a\u68c0\u6d4b\u5230\u4efb\u4f55\u66f4\u6539&#8221;\u3002<\/p><\/blockquote>\n<p>\u5728\u8fd9\u4e00\u6b65\u4e2d\uff0cmyapp\u5185\u5df2\u7ecf\u751f\u6210\u4e86\u4e00\u4e2amigrations\u76ee\u5f55<br \/>\n\u6b64\u65f6\u7684\u6587\u4ef6\u7ed3\u6784\u5982\u4e0b\u3002<\/p>\n<pre class=\"post-pre\"><code>myproject\r\n\u251c\u2500\u2500 db.sqlite3\r\n\u251c\u2500\u2500 manage.py\r\n\u251c\u2500\u2500 myapp\r\n\u2502   \u251c\u2500\u2500 __init__.py\r\n\u2502   \u251c\u2500\u2500 __pycache__\r\n\u2502   \u2502   \u251c\u2500\u2500 __init__.cpython-36.pyc\r\n\u2502   \u2502   \u251c\u2500\u2500 admin.cpython-36.pyc\r\n\u2502   \u2502   \u2514\u2500\u2500 models.cpython-36.pyc\r\n\u2502   \u251c\u2500\u2500 admin.py\r\n\u2502   \u251c\u2500\u2500 apps.py\r\n\u2502   \u251c\u2500\u2500 migrations\r\n\u2502   \u2502   \u251c\u2500\u2500 0001_initial.py\r\n\u2502   \u2502   \u251c\u2500\u2500 __init__.py\r\n\u2502   \u2502   \u2514\u2500\u2500 __pycache__\r\n\u2502   \u2502       \u2514\u2500\u2500 __init__.cpython-36.pyc\r\n\u2502   \u251c\u2500\u2500 models.py\r\n\u2502   \u251c\u2500\u2500 tests.py\r\n\u2502   \u2514\u2500\u2500 views.py\r\n\u2514\u2500\u2500 myproject\r\n    \u251c\u2500\u2500 __init__.py\r\n    \u251c\u2500\u2500 __pycache__\r\n    \u2502   \u251c\u2500\u2500 __init__.cpython-36.pyc\r\n    \u2502   \u251c\u2500\u2500 settings.cpython-36.pyc\r\n    \u2502   \u2514\u2500\u2500 urls.cpython-36.pyc\r\n    \u251c\u2500\u2500 settings.py\r\n    \u251c\u2500\u2500 urls.py\r\n    \u2514\u2500\u2500 wsgi.py\r\n<\/code><\/pre>\n<p>\u6211\u5c06\u8fdb\u884c\u8fc1\u79fb\u64cd\u4f5c\u3002(W\u01d2 .)<\/p>\n<pre class=\"post-pre\"><code>$ python manage.py migrate\r\n<\/code><\/pre>\n<p>\u5982\u679c\u7a0d\u540e\u9700\u8981\u91cd\u65b0\u6dfb\u52a0\u6570\u636e\u6a21\u578b\u6216\u66f4\u6539\u5c5e\u6027\uff0c\u5219\u9700\u8981\u91cd\u65b0\u5f00\u59cb\u3002<\/p>\n<p>\u867d\u7136\u5728\u8fd9\u4e00\u70b9\u4e0a\uff0c\u60a8\u4ecd\u7136\u53ef\u4ee5\u4f7f\u7528Django\u7684shell\u6765\u6dfb\u52a0\u6570\u636e\uff0c\u4f46\u7531\u4e8e\u6211\u4eec\u7684\u76ee\u6807\u662f\u521b\u5efaAPI\uff0c\u6240\u4ee5\u5728\u8fd9\u91cc\u7701\u7565\u6b64\u6b65\u9aa4\u3002<\/p>\n<h2>\u751f\u6210API<\/h2>\n<p>\u521b\u5efa\u4e24\u4e2a\u6587\u4ef6<\/p>\n<pre class=\"post-pre\"><code>$ touch myproject\/urls.py\r\n$ touch myapp\/views.py\r\n<\/code><\/pre>\n<p>\u5728urls.py\u6587\u4ef6\u4e2d\uff0c\u6211\u4eec\u5c06url\u4e0e\u89c6\u56fe\u8fdb\u884c\u5bf9\u5e94\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">from<\/span> <span class=\"nn\">django.conf.urls<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">url<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.contrib<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">admin<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">myapp<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">views<\/span>\r\n\r\n<span class=\"n\">urlpatterns<\/span> <span class=\"o\">=<\/span> <span class=\"p\">[<\/span>\r\n    <span class=\"n\">url<\/span><span class=\"p\">(<\/span><span class=\"sa\">r<\/span><span class=\"s\">'^admin\/'<\/span><span class=\"p\">,<\/span> <span class=\"n\">admin<\/span><span class=\"p\">.<\/span><span class=\"n\">site<\/span><span class=\"p\">.<\/span><span class=\"n\">urls<\/span><span class=\"p\">),<\/span>\r\n    <span class=\"n\">url<\/span><span class=\"p\">(<\/span><span class=\"sa\">r<\/span><span class=\"s\">'^books$'<\/span><span class=\"p\">,<\/span> <span class=\"n\">views<\/span><span class=\"p\">.<\/span><span class=\"n\">show_books<\/span><span class=\"p\">),<\/span>\r\n<span class=\"p\">]<\/span>\r\n<\/code><\/pre>\n<p>\u5728views.py\u6587\u4ef6\u4e2d\uff0c\u6307\u5b9a\u4e86\u8981\u8f93\u51fa\u7684\u5185\u5bb9\u3002<\/p>\n<pre class=\"post-pre\"><code><span class=\"kn\">import<\/span> <span class=\"nn\">json<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.http<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">HttpResponse<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">django.core<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">serializers<\/span>\r\n<span class=\"kn\">from<\/span> <span class=\"nn\">myapp.models<\/span> <span class=\"kn\">import<\/span> <span class=\"n\">Book<\/span>\r\n\r\n<span class=\"k\">def<\/span> <span class=\"nf\">show_books<\/span><span class=\"p\">(<\/span><span class=\"n\">request<\/span><span class=\"p\">):<\/span>\r\n    <span class=\"k\">return<\/span> <span class=\"n\">HttpResponse<\/span><span class=\"p\">(<\/span><span class=\"n\">serializers<\/span><span class=\"p\">.<\/span><span class=\"n\">serialize<\/span><span class=\"p\">(<\/span><span class=\"s\">\"json\"<\/span><span class=\"p\">,<\/span> <span class=\"n\">Book<\/span><span class=\"p\">.<\/span><span class=\"n\">objects<\/span><span class=\"p\">.<\/span><span class=\"nb\">all<\/span><span class=\"p\">()))<\/span>\r\n<\/code><\/pre>\n<p>\u5f53\u60a8\u8bbf\u95ee\/books\u65f6\uff0c\u6211\u4eec\u5c06\u4ee5JSON\u683c\u5f0f\u8fd4\u56de\u6240\u6709\u4e66\u7c4d\u7684\u6570\u636e\u3002<\/p>\n<h2>\u670d\u52a1\u5668\u64cd\u4f5c\u786e\u8ba4<\/h2>\n<pre class=\"post-pre\"><code>$ python manage.py runserver\r\n<\/code><\/pre>\n<p>\u5982\u679c\u5728\u672b\u5c3e\u589e\u52a0\u56db\u4f4d\u6570\u5b57\uff0c\u5219\u53ef\u4ee5\u6307\u5b9a\u7aef\u53e3\u53f7\u3002\u7531\u4e8e\u672c\u6b21\u672a\u8fdb\u884c\u6307\u5b9a\uff0c\u5c06\u4f7f\u7528\u9ed8\u8ba4\u76848000\u53f7\u7aef\u53e3\u3002<\/p>\n<p>\u8ba9\u6211\u4eec\u901a\u8fc7\u6d4f\u89c8\u5668\u8bbf\u95ee http:\/\/localhost:8000\/books\uff0c\u6216\u6267\u884c\u4ee5\u4e0b\u547d\u4ee4\u3002<\/p>\n<pre class=\"post-pre\"><code>$ curl http:\/\/localhost:8000\/books\r\n<\/code><\/pre>\n<p>\u56e0\u4e3a\u8fd8\u6ca1\u6709\u4efb\u4f55\u6570\u636e\u586b\u5165\uff0c\u6240\u4ee5<\/p>\n<pre class=\"post-pre\"><code>[]\r\n<\/code><\/pre>\n<p>\u5e94\u8be5\u663e\u793a\u4e3a&#8217;+&#8217;\u3002<\/p>\n<p>\u4e0b\u4e00\u7bc7\u6587\u7ae0\u2193<br \/>\n\u4f7f\u7528Django REST\u6846\u67b6\u5b9e\u73b0JSON\u7684GET\/POST\/PUT\/DELETE\u8bf7\u6c42<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5b89\u88c5Django pip\u3092\u4f7f\u3046\u5834\u5408 $ pip install django Anaconda\u3092\u5c0e\u5165\u3057\u3066\u3044\u308b\u5834 [&hellip;]<\/p>\n","protected":false},"author":12,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49926","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>\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528Django\u5904\u7406json\u7684RESTful API - 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\/\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528django\u5904\u7406json\u7684restful-api\u3002\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta 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