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
})
#在後端的設定中,配置的是
header("Access-Control-Allow-Origin: *");
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.
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: $origin");
header('Access-Control-Allow-Credentials: true');
header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With');
header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE');
header('Access-Control-Max-Age: 1728000');
當然, 為* 的時候也可以這樣
header("Access-Control-Allow-Origin: *");
header('Access-Control-Allow-Headers: Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-Requested-With');
header('Access-Control-Allow-Methods: GET, POST, PATCH, PUT, DELETE');
header('Access-Control-Max-Age: 1728000');
先定義個中間件php think make:middleware CrossDomain
<?php
namespace app\http\middleware;
use think\Response;
class CrossDomain
{
public function handle($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);
}
}在router.php中
Route::group('', function (){
....
这里写路由
....
})->middleware(['CrossDomain']);
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
}
...
完成。