Nginx反向代理和Node.js後端解決跨域問題

最近在寫本身的博客,涉及到跨域的問題,本身搗鼓許久,終於解決了。而後總結一下,記錄一下,往後遇到相似的問題的時候也能夠獲得一些啓發。javascript

1、什麼是跨域

  跨域,指的是瀏覽器不能執行其餘網站的腳本。它是由瀏覽器的同源策略形成的,是瀏覽器對javascript施加的安全限制。前端

  所謂同源是指,域名,協議,端口都相同。瀏覽器執行javascript腳本時,會檢查這個腳本屬於哪一個頁面,若是不是同源頁面,就不會被執行。java

2、跨域問題的解決方案

  一、 經過jsonp跨域
  二、 document.domain + iframe跨域
  三、 location.hash + iframe
  四、 window.name + iframe跨域
  五、 postMessage跨域
  六、 跨域資源共享(CORS)
  七、 nginx代理跨域
  八、 nodejs中間件代理跨域
  九、 WebSocket協議跨域node

3、配置Nginx反向代理解決跨域

  一、登陸服務器,進入到Nginx配置文件: cd /etc/nginx/conf.dios

  二、打開要配置跨域的相應域名之下:nginx

  三、將如下配置信息加進去,由於這個域名我還加上了ssh的配置,因此篇幅看着有點長:json

upstream server {
       server 127.0.0.1:3000;
}

server {
        listen 80;
        server_name server.locusy.top;

    rewrite ^(.*)$  https://$host$1 permanent;

        location / {

        add_header 'Access-Control-Allow-Origin' '*';
            add_header 'Access-Control-Allow-Credentials' 'true';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';

        if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
               add_header 'Access-Control-Allow-Credentials' 'true';
            add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
            add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
                return 204;
       }

        proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $http_host;
                proxy_set_header X-Nginx-Proxy true;

                proxy_pass http://47.94.208.76:3000;
                proxy_redirect off;
    }
}

server {
     listen 443;
     server_name server.locusy.top;
     ssl on;
     ssl_certificate   cert/1754906_server.locusy.top.pem;
     ssl_certificate_key  cert/1754906_server.locusy.top.key;
     ssl_session_timeout 5m;
     ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE:ECDH:AES:HIGH:!NULL:!aNULL:!MD5:!ADH:!RC4;
     ssl_protocols TLSv1 TLSv1.1 TLSv1.2;
     ssl_prefer_server_ciphers on;
     location / {
                add_header Access-Control-Allow-Origin *;
                add_header Access-Control-Allow-Credentials true;
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';

        if ($request_method = 'OPTIONS') {
                add_header 'Access-Control-Allow-Origin' '*';
                add_header 'Access-Control-Allow-Credentials' 'true';
                add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
                add_header Access-Control-Allow-Headers 'DNT,X-Mx-ReqToken,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Authorization';
                return 204;
           }

           proxy_set_header X-Real-IP $remote_addr;
                proxy_set_header X-Forward-For $proxy_add_x_forwarded_for;
                proxy_set_header Host $http_host;
                proxy_set_header X-Nginx-Proxy true;

                proxy_pass http://47.94.208.76:3000;
                proxy_redirect off;
       }

}

4、nodejs後端插件解決跨域

const cors = require('koa-cors');
app.use(cors({
    origin: '*',
    exposeHeaders: ['WWW-Authenticate', 'Server-Authorization'],
    maxAge: 500,
    credentials: true,  //cookie
    allowMethods: ['GET', 'POST', 'DELETE', 'OPTIONS', 'PUT'],
    allowHeaders: ['Content-Type', 'Authorization', 'Accept']
}));

5、前端axios設置

// axios.defaults.withCredentials = true 
相關文章
相關標籤/搜索