element-ui + vue + node.js 与 服务器 Python 应用的跨域问题

跨越问题解决的两种办法:

1. 在 config => index.js 中配置 proxyTable 代理:

    proxyTable: {
      '/charts': {
        target: 'http://localhost:5001',
        changeOrigin: true,
        pathRewrite: {
          '^/charts':'/charts'
        }
      }
    }

说明: /charts:以其开头的所有路径请求转发,.changeOrigin 参数为true: 本地会虚拟一个服务器接收请求,并转发该请求

2. 在 config => dev.env.js 中配置BASE_API,由后端应用解决

module.exports = {
  NODE_ENV: '"development"',
  ENV_CONFIG: '"dev"',
  BASE_API: '"http://localhost:5001"'
}

在Python应用中处理跨域问题:

  • 方法1:使用 flask_cors
from flask_cors import CORS  # 解决跨域问题
from flask import Flask

app = Flask(__name__)
app.config.from_object(base_conf.config["development'])

# CORS(app, resources={"/charts/*",{"origins": "*"})
CORS(app, supports_credentials=True)
  •  方法2: 对 请求头部添加信息
@app.after_request
def af_request(resp):     
    """
    #请求钩子,在所有的请求发生后执行,加入headers。
    :param resp:
    :return:
    """
    resp = make_response(resp)
    resp.headers['Access-Control-Allow-Origin'] = '*'
    resp.headers['Access-Control-Allow-Methods'] = 'GET,POST'
    resp.headers['Access-Control-Allow-Headers'] = 'x-requested-with,content-type'
    return resp
  •  nginx 
server {
    listen 8001;

    access_log /var/log/openresty/access.log basic;
    location / {
        proxy_pass http://127.0.0.1:9527;
        # proxy_pass http://node;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header Host $http_host;
        proxy_set_header X-Nginx-Proxy true;
        proxy_redirect off;
    }

  

    location /charts {
      proxy_pass http://127.0.0.1:5000;
      proxy_set_header Host $http_host;
      proxy_cookie_path /charts /charts;
    }

}

或者,打包之后:

server {
    listen 80;
    access_log /var/log/openresty/access.log basic;

    location / {
        root /opt/app/reports-web/dist;
        index  index.html index.htm;
    }

    location /charts {
            proxy_pass http://127.0.0.1:5000;
            proxy_set_header Host $http_host;
            proxy_cookie_path /charts /charts;
            #proxy_cookie_domain localhost:80 http://127.0.0.1:5000;
    }
}

 

  • Python
from flask import render_template, Flask
import os

print(os.path.abspath(os.curdir))
app = Flask(__name__, static_folder="F:/workspace/reports/web/dist/static",
            template_folder="F:/workspace/reports/web/dist")


@app.route('/')
def index():
  return render_template('index.html')

"""
其他与前端交互的接口与视图
"""

@app.route('/')
def favicon():
  return app.send_static_file("web/favicon.ico")


if __name__ == '__main__':
  app.run(host='0.0.0.0', port=8000, debug=True)

 

posted @ 2019-01-29 16:27  binger0712  阅读(803)  评论(0编辑  收藏  举报