前端跨域配置本地nginx代理
1, 本地前端浏览器打开地址http://localhost:8080
2, nginx配置监听地址http://localhost:8088
3, 后台请求接口地址http://ip:8090/hip-dspool
1. 安装nginx
选个稳定版本
2. 解压后
执行nginx.exe的，启动后会有一闪而过的状态，
然后在浏览器输入localhost会显示如下页面，表示启动成功了
强制杀掉nginx进程
taskkill /f /t /im nginx.exe
3. 原本项目请求
项目浏览器打开页面http://localhost:8080/#，中间请求后台地址跨域了
4. 配置nginx代理
#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 8088;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html;
index index.html index.htm;
proxy_pass http://localhost:8080;
}
location /hip-dspool/ {
add_header Access-Control-Allow-Origin *;
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 ($request_method = 'OPTIONS') {
return 204;
}
# root html;
# index index.html index.htm;
proxy_pass http://ip:8090;
}
#error_page 404 /404.html;
# redirect server error pages to the static page /50x.html
#
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root html;
}
# proxy the PHP scripts to Apache listening on 127.0.0.1:80
#
#location ~ .php$ {
# 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;
# }
#}
}
如上配置好之后，就可以请求了
5. 修改项目请求
将请求后台地址的IP和端口改成nginx的如上就是http://localhost:8088
6. 成功啦
7. 跨域问题
如果后台也同时设置了跨域处理Access-Control-Allow-Origin:*,
但是前端请求又要加上withCredentials:true，添加凭证cookie等信息 就得设置 Access-Control-Allow-Credentials' true;
浏览器请求接口会产生跨域问题，如下
所以：我们可以设置nginx代理， 其中反向代理proxy_hide_header 可以设置隐藏掉主机信息 （Nginx中proxy_hide_header 与fastcgi_hide_header都可以隐藏主机头信息，proxy_hide_header在ngx_http_proxy_module下，fastcgi_hide_header在ngx_http_fastcgi_module模块下， 当nginx作为反向代理时，想要隐藏后端webserver主机信息的时候，可以使用proxy_hide_header来屏蔽后端主机信息， 当nginx作为webserver时，使用fastcgi_hide_header来屏蔽当前主机信息）
然后设置指定的域名进行访问，和设置允许跨域请求携带凭证信息，如下图：
