在使用axios时,经常会遇到跨域问题。为了解决跨域问题,可以在 vue.config.js 文件中配置代理:
js
const { defineConfig } = require('@vue/cli-service')
module.exports = defineConfig({
transpileDependencies: true,
devServer: {
port: 7070,
proxy: {
'/api': {
target: 'http://localhost:8080/admin',
pathRewrite: {
'^/api': ''
}
}
}
}
})
axios的post请求示例:
js
axios.post('/api/employee/login',{
username:'admin',
password: '123456'
}).then(res => {
console.log(res.data)
}).catch(error => {
console.log(error.response)
})
前端发送:http://localhost:7070/api/employee/login
经过代理转换为:http://localhost:8080/admin/employee/login
axios的get请求示例:
js
axios.get('/api/shop/status',{
headers: {
token: 'xxx.yyy.zzz'
}
})
前端发送:http://localhost:7070/api/shop/status
经过代理转换为:http://localhost:8080/admin/shop/status
打包部署vue
cmd
npm run build
打包结束后生成dist文件夹
注意:打包时这个代理并不会跟着打包
假设我们将项目打包到的nginx地址是localhost地址,访问端口是80(80默认可省略)
那么这时候数据请求将请求的是http://localhost/api/employee/login
地址,但是我们需要请求的接口是localhost:8080地址,这时候就需要用到nginx的反向代理了 。
首先进入配置文件
xml
#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;
map $http_upgrade $connection_upgrade{
default upgrade;
'' close;
}
upstream webservers{
server 127.0.0.1:8080 weight=90 ;
#server 127.0.0.1:8088 weight=10 ;
}
server {
listen 80;
server_name localhost;
#charset koi8-r;
#access_log logs/host.access.log main;
location / {
root html/sky;
index index.html index.htm;
}
#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;
}
# 反向代理,处理管理端发送的请求
location /api/ {
proxy_pass http://localhost:8080/admin/;
#proxy_pass http://webservers/admin/;
}
# 反向代理,处理用户端发送的请求
location /user/ {
proxy_pass http://webservers/user/;
}
# WebSocket
location /ws/ {
proxy_pass http://webservers/ws/;
proxy_http_version 1.1;
proxy_read_timeout 3600s;
proxy_set_header Upgrade $http_upgrade;
proxy_set_header Connection "$connection_upgrade";
}
# 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;
# }
#}
}
配置好了代理之后就可以重启服务器了
nginx将http://localhost/api/employee/login
转为http://localhost:8080/admin/employee/login