Flask解决跨域访问

1. 安装flask-cors

   pip install flask-cors
   

2. 新建服务端示例文件server.py:

   from flask import Flask, jsonify
   from flask_cors import CORS
   
   
   app = Flask(__name__)
   CORS(app, resources=r'/*')	# 注册CORS, "/*" 允许访问所有api
   
   @app.route('/cmt', methods=['GET'])
   def get_cmt():
       context = jsonify(
           code=200,
           data=[
               {"id": 1, "name": '张三', "title": '沙发', "content": "我是1楼"},
               {"id": 2, "name": '李四', "title": '板凳', "content": "我是2楼"},
               {"id": 3, "name": '王五', "title": '茶几', "content": "我是3楼"},
           ])
       return context
   
   if __name__ == '__main__':
       app.run(debug=True)