How to solve nginx cross-domain problem

Separate the front and back ends, use nginx to solve cross-domain problems

Front end: vue.js nodejs webpack

Backend: springboot

Reverse proxy server: nginx

Idea: Package the front-end code, let nginx point to static resources, and nginx forwards background requests.

1. Package the front-end code:

npm run build

will generate a dist folder. Contains an index.html file and a static folder. Take my local path as an example:

/users/xxx/ideaprojects/webtest/dist

2. Open

nginx.conf in the /usr/local/etc/nginx directory, add the following to the server:

listen  80; #原为8080，避免冲突，更改为80

  server_name localhost;

 

  #charset koi8-r;

 

  #access_log logs/host.access.log main;

 

 

  location / {

   root /users/xxx/ideaprojects/webtest/dist;

   index index.html;

    

   # 此处用于处理 vue、angular、react 使用h5 的 history时 重写的问题

   if (!-e $request_filename) {

    rewrite ^(.*) /index.html last;

    break;

   }

  }

 

 

  # 代理服务端接口

  location /api/ {

   proxy_pass http://localhost:8080/;# 代理接口地址

  }

Test

Front end sends request : http://localhost/test, vue-router redirects it to http://localhost/api/demo/1, and the actual access is http://localhost:8080/demo/1.

Send a request directly to the background: access http://localhost/api/demo/1, the actual access is: http://localhost:8080/demo/1

Thinking about content expansion:

1).
# Proxy server interface

location /api/ {
proxy_pass http://localhost:8080/;# 代理接口地址
}

The proxy interface address only reaches 8080, then it will automatically add the name of the background project? ? ? For example, the interface is http://148.70.110.87:8080/project name/method name. . .

2).js is requested like this. nginx is configured according to your above, but the request error is http://148.70.110.87/api/index2 404 (not found)

axios.post('/api/index2')
.then( (response) =>{
console.log(response);
})
.catch( (error)=> {
console.log(error);
});

3). The third step is testing. I really can’t understand it. It would be great if there is relevant code.

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