flask：flask_cors模块解决前端请求跨域问题

1 代码如下：

# -*- coding: utf-8 -*-
from __future__ import print_function

from flask import Flask
from flask import Flask, jsonify, request, abort
from flask_cors import CORS

app = Flask(__name__)

CORS(app, resources={r"/*": {"origins": "*"}}, supports_credentials=True)

# docker-config
app.config['MONGODB_SETTINGS'] = {
    'host': 'mongodb://mongodb/datasets',
    'port': 27017,
    'connect': False
}

# docker-config
# app.config['MONGODB_SETTINGS'] = {
#     'host': 'mongodb://mongodb',
#     'port': 27017,
#     'db': 'datasets'
# }

# localhost-config
# app.config['MONGODB_SETTINGS'] = {
#     'host': 'localhost',
#     'port': 27017,
#     'db': 'datasets'
# }

app.debug = True

from models import db
db.init_app(app)


if __name__ == "__main__":
    app.run(debug=True)

2 simple install

(1) pip install flask-cors

(2) from flask_cors import CORS

(3) 在新创建的app后面CORS(app, resources={r"/*": {"origins": "*"}}, supports_credentials=True)