nginx实现跨域访问并支持(GET, POST,PUT,DELETE, OPTIONS)

最近有同事提出在使用客户端跨域访问的时候,发现服务器对option请求返回了403,后来查看了网络添加了一段配置,发现option服务返回204了,但是后续的put操作也直接返回了204导致无法使用图片上传功能,经过一番查询才发现,原来put等请求也需要定义,不然会直接使用option那段配置的请求

#首先nginx需要支持dav_module模块

./configure --prefix=/home/zqlx/apps/usr/webserver/nginx-1.12.0 --with-http_stub_status_module --with-http_ssl_module --user=zqlx --group=zqlx --with-pcre --with-pcre-jit --add-module=/tmp/nginx_upstream_check_module-master --with-stream --with-http_dav_module

#配置文件加上以下配置

location /aaa {
add_header 'Access-Control-Allow-Origin' '*';
add_header 'Access-Control-Allow-Credentials' 'true';
#if ($request_method = "OPTIONS") {
# add_header 'Access-Control-Allow-Origin' "*";
# add_header 'Access-Control-Allow-Credentials' "true";
# add_header 'Access-Control-Max-Age' 86400;
# add_header 'Access-Control-Allow-Methods' 'GET, POST, OPTIONS, DELETE';
# add_header 'Access-Control-Allow-Headers' 'reqid, nid, host, x-real-ip, x-forwarded-ip, event-type, event-id, accept, content-type';
# add_header 'Content-Length' 0;
# add_header 'Content-Type' 'application/json, charset=utf-8';
# return 204;
#}
dav_methods PUT DELETE; 
if ($request_method = 'OPTIONS') { 
add_header 'Access-Control-Allow-Origin' '*'; 
add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE,OPTIONS'; 
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
add_header 'Access-Control-Max-Age' 3600; 
add_header 'Content-Type' 'text/plain charset=UTF-8'; 
add_header 'Content-Length' 0; 
return 204; 
} 
if ($request_method = 'POST') { 
add_header 'Access-Control-Allow-Origin' '*'; 
add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE,OPTIONS'; 
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
} 
if ($request_method = 'GET') { 
add_header 'Access-Control-Allow-Origin' '*'; 
add_header 'Access-Control-Allow-Methods' 'GET, POST,DELETE,PUT,OPTIONS'; 
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
} 
if ($request_method = 'PUT') { 
add_header 'Access-Control-Allow-Origin' '*'; 
add_header 'Access-Control-Allow-Methods' 'GET, POST,PUT,DELETE,OPTIONS'; 
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
} 
if ($request_method = 'DELETE') { 
add_header 'Access-Control-Allow-Origin' '*'; 
add_header 'Access-Control-Allow-Methods' 'GET, POST,DELETE,PUT,OPTIONS'; 
add_header 'Access-Control-Allow-Headers' 'Authorization,DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type'; 
}

proxy_pass http://aaa/aaa;
proxy_set_header Host $host;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
}

我这里是允许所有,也可以指定域名