{"id":49828,"date":"2023-11-14T04:08:58","date_gmt":"2023-09-18T02:38:20","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90django%e3%80%91%e5%85%b3%e4%ba%8e%e5%8f%af%e5%9c%a8%e6%a8%a1%e6%9d%bf%e4%b8%ad%e4%bd%bf%e7%94%a8%e7%9a%84%e7%94%a8%e6%88%b7%e4%bf%a1%e6%81%af\/"},"modified":"2024-01-15T12:59:26","modified_gmt":"2024-01-15T04:59:26","slug":"%e3%80%90django%e3%80%91%e5%85%b3%e4%ba%8e%e5%8f%af%e5%9c%a8%e6%a8%a1%e6%9d%bf%e4%b8%ad%e4%bd%bf%e7%94%a8%e7%9a%84%e7%94%a8%e6%88%b7%e4%bf%a1%e6%81%af","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e3%80%90django%e3%80%91%e5%85%b3%e4%ba%8e%e5%8f%af%e5%9c%a8%e6%a8%a1%e6%9d%bf%e4%b8%ad%e4%bd%bf%e7%94%a8%e7%9a%84%e7%94%a8%e6%88%b7%e4%bf%a1%e6%81%af\/","title":{"rendered":"\u3010Django\u3011\u5173\u4e8e\u53ef\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u4fe1\u606f"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u5728Django\u4e2d\uff0c\u5982\u679c\u60f3\u8981\u5728\u9875\u9762\u4e0a\u663e\u793a\u5f53\u524d\u767b\u5f55\u7528\u6237\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u6a21\u677f\u4e2d\u7684{{ user.username }}\u6216\u8005{{ user.get_username }}\u6765\u5b9e\u73b0\u3002\u7136\u800c\uff0c\u4e3a\u4ec0\u4e48\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e2a\u540d\u4e3auser\u7684\u53d8\u91cf\uff0c\u5373\u4f7f\u6211\u6ca1\u6709\u5728views.py\u4e2d\u4f7f\u7528render\u51fd\u6570\u5c06\u5b83\u4f20\u9012\u7ed9templetes\uff0c\u4e5f\u6ca1\u6709\u91cd\u5199get_context_data()\u65b9\u6cd5\u6765\u6dfb\u52a0\u53d8\u91cf\u5462\uff1f\u7531\u4e8e\u5bf9\u6b64\u4ea7\u751f\u4e86\u7591\u95ee\uff0c\u6211\u8fdb\u884c\u4e86\u4e00\u4e9b\u8c03\u67e5\u3002<\/p>\n

\u4e0b\u9762\u7684\u662f\u4e00\u4e2a\u4f8b\u5b50\uff1a<\/h1>\n

\u603b\u7ed3<\/p>\n

\u5728\u6a21\u677f\u4e2d\u53ef\u4ee5\u4f7f\u7528\u7684\u53d8\u91cf\u5b58\u50a8\u5728\u4e0a\u4e0b\u6587\u53d8\u91cf\uff08context\uff09\u4e2d\uff0c\u683c\u5f0f\u4e3a context\uff08={<\u53d8\u91cf\u540d>: <\u53d8\u91cf>, …..}\uff09 \u3002\u6b64\u4e0a\u4e0b\u6587\u53d8\u91cf\u5305\u542b\u4ee5\u4e0b\u4e24\u79cd\u7c7b\u578b\u7684\u53d8\u91cf\u3002<\/p>\n

    \n
  1. \n
      \u901a\u8fc7\u4f7f\u7528render\u51fd\u6570\u7b49\u5728views.py\u4f20\u9012\u7684\u53d8\u91cf\uff0c<\/ol>\n<\/li>\n<\/ol>\n

       <\/p>\n

        \u5728settings.py\u6587\u4ef6\u4e2dTEMPLATES\u9009\u9879\u4e2d\u6307\u5b9a\u7684’context_processers’\u6307\u5b9a\u7684\u6587\u4ef6\u4e2d\u5b9a\u4e49\u7684\u53d8\u91cf\u3002<\/ol>\n

        \u7528\u6237\u662f\u4e0e\u7b2c\u4e8c\u4e2a\u8bf4\u660e\u76f8\u5bf9\u5e94\u7684\u53d8\u91cf\uff0c\u5728views.py\u4e2d\u65e0\u9700\u6307\u5b9a\u5373\u53ef\u4f7f\u7528\u7684\u4e3b\u8981\u53d8\u91cf\u5305\u62ecrequest\u3001perm\u3001message\u7b49\u3002<\/p>\n

        \u88ab\u5b58\u50a8\u5728\u54ea\u91cc\uff1f<\/h1>\n

        \u9996\u5148\uff0c\u8ba9\u6211\u4eec\u770b\u770bsetting.py\u6587\u4ef6\u3002<\/p>\n

        #\r\n# \u7701\u7565\r\n#\r\n<\/span>\r\nTEMPLATES<\/span> =<\/span> [<\/span>\r\n    {<\/span>\r\n        'BACKEND'<\/span>:<\/span> 'django.template.backends.django.DjangoTemplates'<\/span>,<\/span>\r\n        'DIRS'<\/span>:<\/span> [<\/span>os<\/span>.<\/span>path<\/span>.<\/span>join<\/span>(<\/span>BASE_DIR<\/span>,<\/span> 'templates'<\/span>)],<\/span>\r\n        'APP_DIRS'<\/span>:<\/span> True<\/span>,<\/span>\r\n        'OPTIONS'<\/span>:<\/span> {<\/span>\r\n            'context_processors'<\/span>:<\/span> [<\/span>\r\n                'django.template.context_processors.debug'<\/span>,<\/span>\r\n                'django.template.context_processors.request'<\/span>,<\/span>\r\n                'django.contrib.auth.context_processors.auth'<\/span>,<\/span>\r\n                'django.contrib.messages.context_processors.messages'<\/span>,<\/span>\r\n            ],<\/span>\r\n        },<\/span>\r\n    },<\/span>\r\n]<\/span>\r\n\r\n#\r\n# \u7701\u7565\r\n#\r\n<\/span><\/code><\/pre>\n
        \u5728setting.py\u6587\u4ef6\u4e2d\uff0c\u88ab\u6307\u5b9a\u4e3aTEMPLATES.OPTIONS.context_processors\u7684\u6587\u4ef6\u6709\u4ee5\u4e0b\u56db\u4e2a\uff1a
        \ndjango.template.context_processors.debug
        \ndjango.template.context_processors.request
        \ndjango.contrib.auth.context_processors.auth……\u7528\u6237\u8eab\u4efd\u8ba4\u8bc1\u7684\u4f4d\u7f6e
        \ndjango.contrib.messages.context_processors.messages<\/p>\n
        \u7528\u6237\u7684\u5b58\u50a8\u4f4d\u7f6e<\/h3>\n
        #\r\n# \u7701\u7565\r\n#\r\n<\/span>\r\ndef<\/span> auth<\/span>(<\/span>request<\/span>):<\/span>\r\n    \"\"\"\r\n    Return context variables required by apps that use Django's authentication\r\n    system.\r\n\r\n    If there is no 'user' attribute in the request, use AnonymousUser (from\r\n    django.contrib.auth).\r\n    \"\"\"<\/span>\r\n    if<\/span> hasattr<\/span>(<\/span>request<\/span>,<\/span> 'user'<\/span>):<\/span>\r\n        user<\/span> =<\/span> request<\/span>.<\/span>user<\/span>\r\n    else<\/span>:<\/span>\r\n        from<\/span> django.contrib.auth.models<\/span> import<\/span> AnonymousUser<\/span>\r\n        user<\/span> =<\/span> AnonymousUser<\/span>()<\/span>\r\n\r\n    return<\/span> {<\/span>\r\n        'user'<\/span>:<\/span> user<\/span>,<\/span>\r\n        'perms'<\/span>:<\/span> PermWrapper<\/span>(<\/span>user<\/span>),<\/span>\r\n    }<\/span>\r\n<\/code><\/pre>\n
        \u901a\u8fc7\u8fd4\u56de”\u7528\u6237”\uff0c\u4f7f\u5f97\u7528\u6237\u53ef\u4ee5\u5728\u6a21\u677f\u5185\u4f7f\u7528\u3002\u53ef\u4ee5\u901a\u8fc7”\u7528\u6237.username”\u6765\u63d0\u53d6\u7528\u6237\u5bf9\u8c61\u4e2d\u7684username\u5c5e\u6027\uff0c\u6216\u8005\u901a\u8fc7\u5b9e\u4f8b\u5316AnonymousUser\u7c7b\uff0c\u5e76\u4f7f\u7528\u7c7b\u5185\u7684get_user\u65b9\u6cd5\u6765\u8c03\u7528”user.get_username”\uff0c\u4ee5\u663e\u793a\u5df2\u767b\u5f55\u7528\u6237\u7684\u7528\u6237\u540d\u3002<\/p>\n
        \u8bf7\u53c2\u8003\u4ee5\u4e0b\u4e2d\u6587\u7684\u672c\u5730\u5316\u6539\u5199\uff1a<\/h4>\n
        (\u4ec5\u4f9b\u53c2\u8003)<\/p>\n
        \u5728\u5e95\u90e8\u6709\u4e00\u4e2a\u540d\u4e3a “get_username” \u7684\u51fd\u6570<\/p>\n
        class<\/span> AnonymousUser<\/span>:<\/span>\r\n    id<\/span> =<\/span> None<\/span>\r\n    pk<\/span> =<\/span> None<\/span>\r\n    username<\/span> =<\/span> ''<\/span>\r\n    is_staff<\/span> =<\/span> False<\/span>\r\n    is_active<\/span> =<\/span> False<\/span>\r\n    is_superuser<\/span> =<\/span> False<\/span>\r\n    _groups<\/span> =<\/span> EmptyManager<\/span>(<\/span>Group<\/span>)<\/span>\r\n    _user_permissions<\/span> =<\/span> EmptyManager<\/span>(<\/span>Permission<\/span>)<\/span>\r\n\r\n    def<\/span> __str__<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> 'AnonymousUser'<\/span>\r\n\r\n    def<\/span> __eq__<\/span>(<\/span>self<\/span>,<\/span> other<\/span>):<\/span>\r\n        return<\/span> isinstance<\/span>(<\/span>other<\/span>,<\/span> self<\/span>.<\/span>__class__<\/span>)<\/span>\r\n\r\n    def<\/span> __hash__<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> 1<\/span>  # instances always return the same hash value\r\n<\/span>\r\n    def<\/span> __int__<\/span>(<\/span>self<\/span>):<\/span>\r\n        raise<\/span> TypeError<\/span>(<\/span>'Cannot cast AnonymousUser to int. Are you trying to use it in place of User?'<\/span>)<\/span>\r\n\r\n    def<\/span> save<\/span>(<\/span>self<\/span>):<\/span>\r\n        raise<\/span> NotImplementedError<\/span>(<\/span>\"Django doesn't provide a DB representation for AnonymousUser.\"<\/span>)<\/span>\r\n\r\n    def<\/span> delete<\/span>(<\/span>self<\/span>):<\/span>\r\n        raise<\/span> NotImplementedError<\/span>(<\/span>\"Django doesn't provide a DB representation for AnonymousUser.\"<\/span>)<\/span>\r\n\r\n    def<\/span> set_password<\/span>(<\/span>self<\/span>,<\/span> raw_password<\/span>):<\/span>\r\n        raise<\/span> NotImplementedError<\/span>(<\/span>\"Django doesn't provide a DB representation for AnonymousUser.\"<\/span>)<\/span>\r\n\r\n    def<\/span> check_password<\/span>(<\/span>self<\/span>,<\/span> raw_password<\/span>):<\/span>\r\n        raise<\/span> NotImplementedError<\/span>(<\/span>\"Django doesn't provide a DB representation for AnonymousUser.\"<\/span>)<\/span>\r\n\r\n    @<\/span>property<\/span>\r\n    def<\/span> groups<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> self<\/span>.<\/span>_groups<\/span>\r\n\r\n    @<\/span>property<\/span>\r\n    def<\/span> user_permissions<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> self<\/span>.<\/span>_user_permissions<\/span>\r\n\r\n    def<\/span> get_user_permissions<\/span>(<\/span>self<\/span>,<\/span> obj<\/span>=<\/span>None<\/span>):<\/span>\r\n        return<\/span> _user_get_permissions<\/span>(<\/span>self<\/span>,<\/span> obj<\/span>,<\/span> 'user'<\/span>)<\/span>\r\n\r\n    def<\/span> get_group_permissions<\/span>(<\/span>self<\/span>,<\/span> obj<\/span>=<\/span>None<\/span>):<\/span>\r\n        return<\/span> set<\/span>()<\/span>\r\n\r\n    def<\/span> get_all_permissions<\/span>(<\/span>self<\/span>,<\/span> obj<\/span>=<\/span>None<\/span>):<\/span>\r\n        return<\/span> _user_get_permissions<\/span>(<\/span>self<\/span>,<\/span> obj<\/span>,<\/span> 'all'<\/span>)<\/span>\r\n\r\n    def<\/span> has_perm<\/span>(<\/span>self<\/span>,<\/span> perm<\/span>,<\/span> obj<\/span>=<\/span>None<\/span>):<\/span>\r\n        return<\/span> _user_has_perm<\/span>(<\/span>self<\/span>,<\/span> perm<\/span>,<\/span> obj<\/span>=<\/span>obj<\/span>)<\/span>\r\n\r\n    def<\/span> has_perms<\/span>(<\/span>self<\/span>,<\/span> perm_list<\/span>,<\/span> obj<\/span>=<\/span>None<\/span>):<\/span>\r\n        return<\/span> all<\/span>(<\/span>self<\/span>.<\/span>has_perm<\/span>(<\/span>perm<\/span>,<\/span> obj<\/span>)<\/span> for<\/span> perm<\/span> in<\/span> perm_list<\/span>)<\/span>\r\n\r\n    def<\/span> has_module_perms<\/span>(<\/span>self<\/span>,<\/span> module<\/span>):<\/span>\r\n        return<\/span> _user_has_module_perms<\/span>(<\/span>self<\/span>,<\/span> module<\/span>)<\/span>\r\n\r\n    @<\/span>property<\/span>\r\n    def<\/span> is_anonymous<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> True<\/span>\r\n\r\n    @<\/span>property<\/span>\r\n    def<\/span> is_authenticated<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> False<\/span>\r\n\r\n    def<\/span> get_username<\/span>(<\/span>self<\/span>):<\/span>\r\n        return<\/span> self<\/span>.<\/span>username<\/span>\r\n<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"
        \u9996\u5148 \u5728Django\u4e2d\uff0c\u5982\u679c\u60f3\u8981\u5728\u9875\u9762\u4e0a\u663e\u793a\u5f53\u524d\u767b\u5f55\u7528\u6237\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u6a21\u677f\u4e2d\u7684{{ user.usernam […]<\/p>\n","protected":false},"author":7,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-49828","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"yoast_head":"\n\u3010Django\u3011\u5173\u4e8e\u53ef\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u4fe1\u606f - 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\/\u3010django\u3011\u5173\u4e8e\u53ef\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u4fe1\u606f\/\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"\u3010Django\u3011\u5173\u4e8e\u53ef\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u4fe1\u606f\" \/>\n<meta property=\"og:description\" content=\"\u9996\u5148 \u5728Django\u4e2d\uff0c\u5982\u679c\u60f3\u8981\u5728\u9875\u9762\u4e0a\u663e\u793a\u5f53\u524d\u767b\u5f55\u7528\u6237\u7684\u540d\u79f0\uff0c\u53ef\u4ee5\u4f7f\u7528\u6a21\u677f\u4e2d\u7684{{ user.usernam […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.silicloud.com\/zh\/blog\/\u3010django\u3011\u5173\u4e8e\u53ef\u5728\u6a21\u677f\u4e2d\u4f7f\u7528\u7684\u7528\u6237\u4fe1\u606f\/\" \/>\n<meta property=\"og:site_name\" content=\"Blog - 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