安装flask_cors

pip install flask_cors

后端返回

from flask import Flask
from flask_cors import cross_origin

app = Flask(__name__)


@app.route(‘/zzk‘, methods=[‘POST‘, ‘GET‘])
@cross_origin(origins="http://localhost:8081")  # 设置可以访问的前端端口
def hello_world():
    return ‘ZZK TXDY ‘


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

前端获取

Github仓库

相关代码我已经放到了Github，欢迎Star
仓库地址：https://github.com/Trkly/Flask_cors-addresses-cross-domain-problem-instances

Flask前后端分离跨域问题解决方案