1、部署现状

* 前端VUE部署在Nginx服务中
* 后台微服务通过NodeJS网关反向代理
2、问题现状
Request header field Authorization is not allowed by
Access-Control-Allow-Headers in preflight response.
3、解决方案

* NodeJS增加跨域支持 app.all("*",function(req,res,next){ //设置允许跨域的域名,*代表允许任意域名跨域
res.header("Access-Control-Allow-Origin","*"); //允许的header类型
res.header("Access-Control-Allow-Headers","*"); //跨域允许的请求方式
res.header("Access-Control-Allow-Methods","DELETE,PUT,POST,GET,OPTIONS"); }
* Nginx增加跨域支持 add_header 'Access-Control-Allow-Headers'
'DNT,X-CustomHeader,Keep-Alive,User-Agent,X-Requested-With,If-Modified-Since,Cache-Control,Content-Type,Content-Range,Range';


4、在SpringBoot微服务Controller中类上添加跨域注解
@CrossOrigin