Nginx解决跨域问题
问题描述：后端在本机127.0.0.1:9090端口开展服务，但是前端不在本机部署，访问出现跨域问题无法解决。
安装Nginx并配置
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| # Step1： 下载编译工具和库文件
yum -y install make zlib zlib-devel gcc-c++ libtool openssl openssl-devel
# Step2: 安装PCRE
# 下载
cd /usr/local/src/
wget http://downloads.sourceforge.net/project/pcre/pcre/8.35/pcre-8.35.tar.gz
# 解压
tar zxvf pcre-8.35.tar.gz
# 进入目录
cd pcre-8.35
# 编译安装
./configure
make && make install
# 查看版本无误
pcre-config --version
# Step3： 安装Nginx
# 下载
cd /usr/local/src/
wget https://nginx.org/download/nginx-1.20.2.tar.gz
# 解压安装包
tar zxvf nginx-1.20.2.tar.gz
# 进入安装目录
cd nginx-1.20.2
# 编译安装
./configure --prefix=/usr/local/webserver/nginx --with-http_stub_status_module --with-http_ssl_module --with-pcre=/usr/local/src/pcre-8.35
make
make install
# 查看Nginx版本
/usr/local/webserver/nginx/sbin/nginx -v
|
配置Nginx的文件
实现：将9091端口跨域请求放通，映射本机9090端口
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| vim /usr/local/webserver/nginx/conf/nginx.conf
|
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|
#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 9091;
server_name localhost;
location /api {
root html;
index index.html index.htm;
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;
}
proxy_pass http://127.0.0.1:9090;
}
}
}
|
检查配置文件并启动
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| # 检查文件正确性
/usr/local/webserver/nginx/sbin/nginx -t
# 启动
/usr/local/webserver/nginx/sbin/nginx
#
/usr/local/webserver/nginx/sbin/nginx -s reload # 重新载入配置文件
/usr/local/webserver/nginx/sbin/nginx -s reopen # 重启 Nginx
/usr/local/webserver/nginx/sbin/nginx -s stop # 停止 Nginx
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