Nginx+ThinkPHP+Vue解决跨域问题的方法详解

目录

• 1.nginx配置允许跨域
• 2.在ThinkPHP中允许跨域

解决过程主要有两个步骤。

1.nginx配置允许跨域

worker_processes  1;
 
events {
    worker_connections  1024;
}
 
http {
    include       mime.types;
    default_type  application/octet-stream;
    sendfile        on;
	
    server {
		listen 80;
		# 域名
		server_name localhost;
		# 服务器根目录
		root H:phpprojectUserManagerpublic;
		# 默认读取的文件
		index index.php index.html index.htm;
 
		location / {
			# 允许浏览器跨域请求
			if ($request_method = 'OPTIONS') {
                add_header Access-Control-Allow-Origin '*';
                add_header Access-Control-Allow-Headers '*';
                add_header Access-Control-Allow-Methods '*';
                add_header Access-Control-Allow-Credentials 'true';
                return 204;
            }
            
 
			if (!-e $request_filename) {
				rewrite ^(.*)$ /index.php?s=/$1 last; break; 
			} 
			try_files $uri $uri/ /index.php?$query_string;
		}
 
		# 监听127.0.0.1:9000端口，要和php-cgi.exe配置的ip:端口一致
		location ~ .php$ {
			fastcgi_pass 127.0.0.1:9000;
			include fastcgi_params;
			fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
		}
	}
 
}

其中的允许浏览器跨域请求是关键点，因为浏览器在发现网页请求是跨域请求时，会再发送一个OPTIONS请求，只有这个请求成功了才会允许跨域请求，此时，要强行配置允许跨域。（这里配置的是允许全部请求跨域）

2.在ThinkPHP中允许跨域

编辑middleware.php文件

?php
// 全局中间件定义文件
return [
    //允许跨域
    //thinkmiddlewareAllowCrossDomain::class
    appmiddlewareAllowCrossDomain::class
    // 全局请求缓存
    // thinkmiddlewareCheckRequestCache::class,
    // 多语言加载
    // thinkmiddlewareLoadLangPack::class,
    // Session初始化
    // thinkmiddlewareSessionInit::class
];

?php
declare (strict_types = 1);
 
namespace appmiddleware;
 
use Closure;
use thinkConfig;
use thinkRequest;
use thinkResponse;
 
/**
 * 跨域请求支持
 */
class AllowCrossDomain
{
    protected $cookieDomain;
 
    protected $header = [
        'Access-Control-Allow-Credentials' = 'true',
        'Access-Control-Max-Age'           = 1800,
        'Access-Control-Allow-Methods'     = 'GET, POST, PATCH, PUT, DELETE, OPTIONS',
        'Access-Control-Allow-Headers'     = 'Token, Authorization, Content-Type, If-Match, If-Modified-Since, If-None-Match, If-Unmodified-Since, X-CSRF-TOKEN, X-Requested-With',
    ];
 
    public function __construct(Config $config)
    {
        $this-cookieDomain = $config-get('cookie.domain', '');
    }
 
    /**
     * 允许跨域请求
     * @access public
     * @param Request $request
     * @param Closure $next
     * @param array   $header
     * @return Response
     */
    public function handle($request, Closure $next, ? array $header = [])
    {
        $header = !empty($header) ? array_merge($this-header, $header) : $this-header;
 
        if (!isset($header['Access-Control-Allow-Origin'])) {
            $origin = $request-header('origin');
 
            if ($origin  ('' == $this-cookieDomain || strpos($origin, $this-cookieDomain))) {
                $header['Access-Control-Allow-Origin'] = $origin;
            } else {
                $header['Access-Control-Allow-Origin'] = '*';
            }
        }
 
        return $next($request)-header($header);
    }
}

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