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我起了2个服务器，一个放前端代码，一个放后端代码
这样前端访问后端的文件就会跨域，我想通过配置允许跨域
前端使用node服务器，ip http://localhost:8083/,代码如下:
请求后端的一个文件test.json
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>123</title>
</head>
<body>
123
</body>
<script>
let xhr = new XMLHttpRequest();
xhr.open('GET', 'http://localhost:1111/test.json', true);
xhr.onreadystatechange=function () {
if (xhr.readyState === 4 && xhr.status === 200) {
console.log(xhr.responseText)
}
}
xhr.send();
</script>
</html>后端用的nginx服务器，ip http://localhost:1111，放了个test.json文件
nginx配置如下:
从网上找了好多跨域配置都不行
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
server {
listen 1111;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html;
# 指定允许跨域的方法，*代表所有
add_header Access-Control-Allow-Methods *;
# 预检命令的缓存，如果不缓存每次会发送两次请求
add_header Access-Control-Max-Age 3600;
# 带cookie请求需要加上这个字段，并设置为true
add_header Access-Control-Allow-Credentials true;
# 表示允许这个域跨域调用（客户端发送请求的域名和端口）
# $http_origin动态获取请求客户端请求的域 不用*的原因是带cookie的请求不支持*号
add_header Access-Control-Allow-Origin $http_origin;
# 表示请求头的字段 动态获取
add_header Access-Control-Allow-Headers
$http_access_control_request_headers;
# OPTIONS预检命令，预检命令通过时才发送请求
# 检查请求的类型是不是预检命令
if ($request_method = OPTIONS){
return 200;
}
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ \.php$ {
# proxy_pass http://127.0.0.1;
#}
# pass the PHP scripts to FastCGI server listening on 127.0.0.1:9000
#
#location ~ \.php$ {
# root html;
# fastcgi_pass 127.0.0.1:9000;
# fastcgi_index index.php;
# fastcgi_param SCRIPT_FILENAME /scripts$fastcgi_script_name;
# include fastcgi_params;
#}
# deny access to .htaccess files, if Apache's document root
# concurs with nginx's one
#
#location ~ /\.ht {
# deny all;
#}
}
# another virtual host using mix of IP-, name-, and port-based configuration
#
#server {
# listen 8000;
# listen somename:8080;
# server_name somename alias another.alias;
# location / {
# root html;
# index index.html index.htm;
# }
#}
# HTTPS server
#
#server {
# listen 443 ssl;
# server_name localhost;
# ssl_certificate cert.pem;
# ssl_certificate_key cert.key;
# ssl_session_cache shared:SSL:1m;
# ssl_session_timeout 5m;
# ssl_ciphers HIGH:!aNULL:!MD5;
# ssl_prefer_server_ciphers on;
# location / {
# root html;
# index index.html index.htm;
# }
#}
}
结果依旧报跨域，大神们给看看
这是请求和响应，显示200，但还是报跨域
前端ajax发送请求也需要设置容许跨域
再有看下网络请求nginx是否设置成功