配置CORS实现跨域

完整设置

# YDBJ 20221221 跨域
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
add_header 'Access-Control-Allow-Mehtods' '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') {
  return 204;
}

精细设置

location / {
    if ($request_method = 'OPTIONS') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type';
        add_header 'Access-Control-Max-Age' 1728000;
        add_header 'Content-Type' 'text/plain charset=UTF-8';
        add_header 'Content-Length' 0;
        return 204;
    }
    if ($request_method = 'POST') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
    }
    if ($request_method = 'GET') {
        add_header 'Access-Control-Allow-Origin' '*';
        add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS';
        add_header 'Access-Control-Allow-Headers' 'DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type';
        add_header 'Access-Control-Expose-Headers' 'Content-Length,Content-Range';
    }
}

简单设置

php

header("Access-Control-Allow-Origin:*");

nginx

location ~ .*\.php$
{
    add_header 'Access-Control-Allow-Origin' '*';    # 就加这句就行
    include fcgi.conf;
    fastcgi_pass  127.0.0.1:10080;
    fastcgi_index index.php;
    expires off;
}

Javascript

$.ajax({
   url: 'http://www.test.com:8080/login',
   type: 'get',
   data: {},
   xhrFields: {
       withCredentials: true    // 前端设置是否带cookie
   },
   crossDomain: true,           // 会让请求头中包含跨域的额外信息，但不会含cookie
});