跨域是什麼這裡就不細講, 這裡主要是thinkphp5.1, 說一下大概的解決思路
首先,因為前端是自己寫的, 在axios
配置中, 我設定瞭如下
withCredentials: true // 跨域請求時發送cookie
// 创建一个axios const service = axios.create({ baseURL: URL , withCredentials: true, // 跨域请求时发送cookie timeout: 5000 // request timeout })
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#在後端的設定中,配置的是
header("Access-Control-Allow-Origin: *");
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故而拋出了這樣一個錯誤
Access to XMLHttpRequest at 'http://store.ink/admin/me?sid=lbn3mpacfb3k1mbehnk9qh8kf3' from origin 'http://vue-admin-web.ink' has been blocked by CORS policy: The value of the 'Access-Control-Allow-Origin' header in the response must not be the wildcard '*' when the request's credentials mode is 'include'. The credentials mode of requests initiated by the XMLHttpRequest is controlled by the withCredentials attribute.
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意思大概為設定withCredentials
為true
時, origin 是不允許為*
的, origin必須設定為來源的位址
也就是http://a.com 請求http://b.com 的時候, http:/ /a.com 必須設定origin 為http://b.com 才能透過
最後參考設定如下
$origin = $_SERVER['HTTP_ORIGIN'] ?? '*'; header("Access-Control-Allow-Origin: $origin"); header('Access-Control-Allow-Credentials: true'); header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With'); header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE'); header('Access-Control-Max-Age: 1728000');
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當然, 為* 的時候也可以這樣
header("Access-Control-Allow-Origin: *"); header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With'); header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE'); header('Access-Control-Max-Age: 1728000');
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先定義個中間件php think make:middleware CrossDomain
<?php namespace app\http\middleware; use think\Response; class CrossDomain { public function handle($request, \Closure $next) { $origin = $_SERVER['HTTP_ORIGIN'] ?? '*'; header("Access-Control-Allow-Origin: $origin"); header('Access-Control-Allow-Credentials: true'); header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With'); header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE'); header('Access-Control-Max-Age: 1728000'); return $next($request); } }
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在router.php
中
Route::group('', function (){ .... 这里写路由 .... })->middleware(['CrossDomain']);
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然後又有一個新問題
因為如上是走的路由檔案,當請求的url
匹配路由的時候, 會走跨域中間件, 當大家都知道的是, delete 和put 等方法是會提前發起一個options請求的, 也就是無法匹配路由檔,無法走跨域中間件
故而:
定義一個錯誤異常接管https://www.kancloud.cn/manual/thinkphp5_1 /354092#_42
.... public function render(Exception $e) { # 这里来处理跨域问题 $origin = $_SERVER['HTTP_ORIGIN'] ?? '*'; header("Access-Control-Allow-Origin: $origin"); header('Access-Control-Allow-Credentials: true'); header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With'); header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE'); header('Access-Control-Max-Age: 1728000'); $type = request()->isAjax() ? 'json' : "html"; $response = \think\response\Json::create([], $type, 200, []); return $response; # response // 在异常处理接管中,必须返回的是一个人response响应, 而不是 `throw new `抛出一个响应 } ...
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完成。